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1. Search for Majoron-emitting modes of Xe136 double beta decay with the complete EXO-200 dataset

Author: S. Al Kharusi, G. Anton, I. Badhrees, P. S. Barbeau, D. Beck, V. Belov, T. Bhatta, M. Breidenbach, T. Brunner, G. F. Cao, W. R. Cen, C. Chambers, B. Cleveland, M. Coon, A. Craycraft, T. Daniels, L. Darroch, S. J. Daugherty, J. Davis, S. Delaquis, A. Der Mesrobian-Kabakian, R. DeVoe, J. Dilling, A. Dolgolenko, M. J. Dolinski, J. Echevers, W. Fairbank, D. Fairbank, J. Farine, S. Feyzbakhsh, P. Fierlinger, D. Fudenberg, P. Gautam, R. Gornea, G. Gratta, C. Hall, E. V. Hansen, J. Hoessl, P. Hufschmidt, M. Hughes, A. Iverson, A. Jamil, C. Jessiman, M. J. Jewell, A. Johnson, A. Karelin, L. J. Kaufman, T. Koffas, R. Krücken, A. Kuchenkov, K. S. Kumar, Y. Lan, A. Larson, B. G. Lenardo, D. S. Leonard, G. S. Li, S. Li, Z. Li, C. Licciardi, Y. H. Lin, R. MacLellan, T. McElroy, T. Michel, B. Mong, D. C. Moore, K. Murray, O. Njoya, O. Nusair, A. Odian, I. Ostrovskiy, A. Perna, A. Piepke, A. Pocar, F. Retière, A. L. Robinson, P. C. Rowson, D. Ruddell, J. Runge, S. Schmidt, D. Sinclair, K. Skarpaas, A. K. Soma, V. Stekhanov, M. Tarka, S. Thibado, J. Todd, T. Tolba, T. I. Totev, R. Tsang, B. Veenstra, V. Veeraraghavan, P. Vogel, J.-L. Vuilleumier, M. Wagenpfeil, J. Watkins, M. Weber, L. J. Wen, U. Wichoski, G. Wrede, S. X. Wu, Q. Xia, D. R. Yahne, L. Yang, Y.-R. Yen, O. Ya. Zeldovich, and T. Ziegler
Subjects: 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences
Published: 2021

2. Imaging individual barium atoms in solid xenon for barium tagging in nEXO

Author: X. S. Jiang, A. Der Mesrobian-Kabakian, T. Tolba, S. Rescia, D. Fairbank, A. Piepke, Y. Y. Ding, O. Zeldovich, D. Kodroff, T. Daniels, J. Echevers, R. DeVoe, M. Hughes, Simon Johnston, R. Saldanha, O. Nusair, R. Krücken, Alexis G. Schubert, R. MacLellan, G. St-Hilaire, C. Chambers, I. J. Arnquist, Lorenzo Fabris, J.-L. Vuilleumier, N. Roy, Yuehe Lin, U. Wichoski, L. Cao, David Moore, B. T. Cleveland, John L. Orrell, S. Kravitz, F. Nolet, Veljko Radeka, Jens Dilling, B. Mong, M. Wagenpfeil, J. Dalmasson, T. Ziegler, J. P. Brodsky, T. Bhatta, P. C. Rowson, A.C. Odian, I. Badhrees, M. Heffner, Z. Li, Gerrit Wrede, D. Fudenberg, S. X. Wu, M. Tarka, F. Vachon, G. Li, Douglas H Beck, L. J. Wen, S. Parent, Samuele Sangiorgio, A. House, David Leonard, W. Cree, L. Darroch, J. Todd, G. Gallina, Y-R Yen, Thomas Koffas, W. M. Fairbank, I. Ostrovskiy, K. S. Kumar, D. A. Harris, X.L. Sun, J. B. Zhao, S. Delaquis, T. Stiegler, A. Kuchenkov, M. J. Dolinski, X. F. Wu, A. Larson, Yunyan Zhou, O. Njoya, E. V. Hansen, Giorgio Gratta, K. Skarpaas, Ethan Brown, A. Iverson, Triveni Rao, M. Weber, Shu Li, A. Karelin, P. Hufschmidt, David A. Sinclair, Wei Wu, R.J. Newby, T. Rossignol, M. J. Jewell, Qun-Yao Wang, Zhijun Ning, Y. Ito, L. J. Kaufman, Wei Wei, Rejean Fontaine, S. J. Daugherty, F. Bourque, Y. Lan, Liang Yang, R. Tsang, A. Jamil, S. Feyzbakhsh, C. Licciardi, W. R. Cen, R. Gornea, Guofu Cao, E. Raguzin, J. Farine, Eric W. Hoppe, Gerard Visser, A. Burenkov, T. Brunner, Arun Kumar Soma, Justin Albert, J. Watkins, V.N. Stekhanov, M. Coon, A. Pocar, Cory T. Overman, T. Tsang, A. Craycraft, Venkatesh Veeraraghavan, F. Retiere, Angelo Dragone, Jochen M. Schneider, Qing Xia, X. Zhang, M. Chiu, J. Hößl, P. S. Barbeau, G. S. Ortega, Jean-Francois Pratte, V. A. Belov, M. Oriunno, Serge A. Charlebois, T. I. Totev, K. Murray, Gisela Anton, T. Walton, J. Daughhetee, A. E. Robinson, K. Odgers, M. Côté, Thilo Michel, and Gabriele Giacomini
Subjects: Physics, Sapphire window, Multidisciplinary, 010308 nuclear & particles physics, Analytical chemistry, chemistry.chemical_element, Barium, 01 natural sciences, Particle identification, Background level, Xenon, chemistry, Double beta decay, 0103 physical sciences, Atom, Neutrino, 010306 general physics
Abstract: Author(s): Chambers, C; Walton, T; Fairbank, D; Craycraft, A; Yahne, DR; Todd, J; Iverson, A; Fairbank, W; Alamare, A; Albert, JB; Anton, G; Arnquist, IJ; Badhrees, I; Barbeau, PS; Beck, D; Belov, V; Bhatta, T; Bourque, F; Brodsky, JP; Brown, E; Brunner, T; Burenkov, A; Cao, GF; Cao, L; Cen, WR; Charlebois, SA; Chiu, M; Cleveland, B; Coon, M; Cree, W; Cote, M; Dalmasson, J; Daniels, T; Darroch, L; Daugherty, SJ; Daughhetee, J; Delaquis, S; Mesrobian-Kabakian, A Der; DeVoe, R; Dilling, J; Ding, YY; Dolinski, MJ; Dragone, A; Echevers, J; Fabris, L; Farine, J; Feyzbakhsh, S; Fontaine, R; Fudenberg, D; Giacomini, G; Gornea, R; Gratta, G; Hansen, EV; Heffner, M; Hoppe, EW; Hosl, J; House, A; Hufschmidt, P; Hughes, M; Ito, Y; Jamil, A; Jessiman, C; Jewell, MJ; Jiang, XS; Karelin, A; Kaufman, LJ; Kodroff, D; Koffas, T; Kravitz, S; Krucken, R; Kuchenkov, A; Kumar, KS; Lan, Y; Larson, A; Leonard, DS; Li, G; Li, S; Li, Z; Licciardi, C; Lin, YH; Lv, P; MacLellan, R; Michel, T; Mong, B; Moore, DC | Abstract: The search for neutrinoless double beta decay probes the fundamental properties of neutrinos, including whether or not the neutrino and antineutrino are distinct. Double beta detectors are large and expensive, so background reduction is essential for extracting the highest sensitivity. The identification, or 'tagging', of the $^{136}$Ba daughter atom from double beta decay of $^{136}$Xe provides a technique for eliminating backgrounds in the nEXO neutrinoless double beta decay experiment. The tagging scheme studied in this work utilizes a cryogenic probe to trap the barium atom in solid xenon, where the barium atom is tagged via fluorescence imaging in the solid xenon matrix. Here we demonstrate imaging and counting of individual atoms of barium in solid xenon by scanning a focused laser across a solid xenon matrix deposited on a sapphire window. When the laser sits on an individual atom, the fluorescence persists for $\sim$30~s before dropping abruptly to the background level, a clear confirmation of one-atom imaging. No barium fluorescence persists following evaporation of a barium deposit to a limit of $\leq$0.16\%. This is the first time that single atoms have been imaged in solid noble element. It establishes the basic principle of a barium tagging technique for nEXO.
Published: 2019

3. Reflectivity of VUV-sensitive Silicon Photomultipliers in Liquid Xenon

Author: M. Heffner, Thilo Michel, M. Hughes, F. Vachon, Jean-Francois Pratte, Aleksey E. Bolotnikov, A. Craycraft, R. DeVoe, C. Gingras, C.R. Natzke, A. De St. Croix, T. I. Totev, K. Murray, Gisela Anton, J. C. Nzobadila Ondze, S. Al Kharusi, R. Saldanha, O. Nusair, J. Ringuette, R. Krücken, W. M. Fairbank, M. Worcester, A. Der Mesrobian-Kabakian, N. Massacret, Lorenzo Fabris, David Moore, Wen-Qi Yan, K. Harouaka, R. Gornea, E. Hansen, C. T. Overman, Samuele Sangiorgio, I. Ostrovskiy, H. Rasiwala, M. Tarka, K. S. Kumar, M. Elbeltagi, R. Tsang, A. Larson, John L. Orrell, T. Daniels, E. Caden, F. Retière, Z. Li, Mike Richman, N. Roy, S. Feyzbakhsh, G. Giacomini, M. Murra, G. Li, E. Raguzin, A. Pocar, A. Iverson, Ethan Brown, B. Mong, C. Licciardi, F. Nolet, J. P. Brodsky, A. Tidball, T. McElroy, Shu Li, T. Rossignol, V. A. Belov, R. MacLellan, O. Zeldovich, M. Medina Peregrina, A. Karelin, B. T. Cleveland, K. Odgers, I. Badhrees, Venkatesh Veeraraghavan, D. Fairbank, A. Kuchenkov, M. Wagenpfeil, M. Walent, Giorgio Gratta, Qing Xia, Sergio Ferrara, C. Vivo-Vilches, D. Schulte, Govinda Adhikari, G. S. Ortega, J. Todd, Arun Kumar Soma, C. Weinheimer, T. Brunner, D. S. Leonard, Serge A. Charlebois, A. Odian, L. Darroch, S. Rescia, C. Huhmann, M. J. Dolinski, M. J. Jewell, R. Lindsay, D. Chernyak, L. Althueser, V.N. Stekhanov, M. L. Di Vacri, T. Ziegler, Y. Lan, S. Parent, L. J. Kaufman, A. Gorham, S. X. Wu, P. A. Breur, J. Bane, A. E. Robinson, Eric W. Hoppe, J. Echevers, D. Goeldi, G.J. Ramonnye, Liang Yang, A. Jamil, S. Thibado, C. Richard, M. Chiu, J. Farine, P. Martel-Dion, Guofu Cao, T. Bhatta, J. Nattress, E. Angelico, B. Chana, Douglas H Beck, T. Stiegler, J. Schneider, K. Deslandes, P. C. Rowson, A. House, A. Fieguth, C.A. Hardy, U. Wichoski, S. Viel, G. Gallina, A. Piepke, I. J. Arnquist, P. Gautam, K. G. Leach, R.J. Newby, S. Triambak, F. Spadoni, and C. Chambers
Subjects: Materials science, Physics - Instrumentation and Detectors, APDS, chemistry.chemical_element, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, Optics, Silicon photomultiplier, Xenon, law, 0103 physical sciences, Wafer, Angular resolution, Instrumentation, Mathematical Physics, 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Avalanche photodiode, chemistry, Angle of incidence (optics), business
Abstract: Silicon photomultipliers are regarded as a very promising technology for next-generation, cutting-edge detectors for low-background experiments in particle physics. This work presents systematic reflectivity studies of Silicon Photomultipliers (SiPM) and other samples in liquid xenon at vacuum ultraviolet (VUV) wavelengths. A dedicated setup at the University of M\"unster has been used that allows to acquire angle-resolved reflection measurements of various samples immersed in liquid xenon with 0.45{\deg} angular resolution. Four samples are investigated in this work: one Hamamatsu VUV4 SiPM, one FBK VUV-HD SiPM, one FBK wafer sample and one Large-Area Avalanche Photodiode (LA-APD) from EXO-200. The reflectivity is determined to be 25-36% at an angle of incidence of 20{\deg} for the four samples and increases to up to 65% at 70{\deg} for the LA-APD and the FBK samples. The Hamamatsu VUV4 SiPM shows a decline with increasing angle of incidence. The reflectivity results will be incorporated in upcoming light response simulations of the nEXO detector., Comment: 18 pages, 11 figures
Published: 2021

4. NEXO: Neutrinoless double beta decay search beyond $10^{28}$ year half-life sensitivity

Author: G Adhikari, S Al Kharusi, E Angelico, G Anton, I J Arnquist, I Badhrees, J Bane, V Belov, E P Bernard, T Bhatta, A Bolotnikov, P A Breur, J P Brodsky, E Brown, T Brunner, E Caden, G F Cao, L Cao, C Chambers, B Chana, S A Charlebois, D Chernyak, M Chiu, B Cleveland, R Collister, S A Czyz, J Dalmasson, T Daniels, L Darroch, R DeVoe, M L Di Vacri, J Dilling, Y Y Ding, A Dolgolenko, M J Dolinski, A Dragone, J Echevers, M Elbeltagi, L Fabris, D Fairbank, W Fairbank, J Farine, S Ferrara, S Feyzbakhsh, Y S Fu, G Gallina, P Gautam, G Giacomini, W Gillis, C Gingras, D Goeldi, R Gornea, G Gratta, C A Hardy, K Harouaka, M Heffner, E W Hoppe, A House, A Iverson, A Jamil, M Jewell, X S Jiang, A Karelin, L J Kaufman, I Kotov, R Krücken, A Kuchenkov, K S Kumar, Y Lan, A Larson, K G Leach, B G Lenardo, D S Leonard, G Li, S Li, Z Li, C Licciardi, R Lindsay, R MacLellan, M Mahtab, P Martel-Dion, J Masbou, N Massacret, T McElroy, K McMichael, M Medina Peregrina, T Michel, B Mong, D C Moore, K Murray, J Nattress, C R Natzke, R J Newby, K Ni, F Nolet, O Nusair, J C Nzobadila Ondze, K Odgers, A Odian, J L Orrell, G S Ortega, C T Overman, S Parent, A Perna, A Piepke, A Pocar, J-F Pratte, N Priel, V Radeka, E Raguzin, G J Ramonnye, T Rao, H Rasiwala, S Rescia, F Retière, J Ringuette, V Riot, T Rossignol, P C Rowson, N Roy, R Saldanha, S Sangiorgio, X Shang, A K Soma, F Spadoni, V Stekhanov, X L Sun, M Tarka, S Thibado, A Tidball, J Todd, T Totev, S Triambak, R H M Tsang, T Tsang, F Vachon, V Veeraraghavan, S Viel, C Vivo-Vilches, P Vogel, J-L Vuilleumier, M Wagenpfeil, T Wager, M Walent, K Wamba, Q Wang, W Wei, L J Wen, U Wichoski, S Wilde, M Worcester, S X Wu, W H Wu, X Wu, Q Xia, W Yan, H Yang, L Yang, O Zeldovich, J Zhao, T Ziegler, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), and nEXO
Subjects: Nuclear and High Energy Physics, background: effect, Physics - Instrumentation and Detectors, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], time-projection chambers, 01 natural sciences, neutrinoless double beta decay, Monte Carlo simulations, double-beta decay: (0neutrino), 0103 physical sciences, neutrino: mass, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, detector: design, xenon: liquid, 010308 nuclear & particles physics, neutrinos, Instrumentation and Detectors (physics.ins-det), sensitivity, time projection chamber, 3. Good health, photon: scintillation counter, copper, radioactivity, Xe-136, experimental results
Abstract: The nEXO neutrinoless double beta decay experiment is designed to use a time projection chamber and 5000 kg of isotopically enriched liquid xenon to search for the decay in $^{136}$Xe. Progress in the detector design, paired with higher fidelity in its simulation and an advanced data analysis, based on the one used for the final results of EXO-200, produce a sensitivity prediction that exceeds the half-life of $10^{28}$ years. Specifically, improvements have been made in the understanding of production of scintillation photons and charge as well as of their transport and reconstruction in the detector. The more detailed knowledge of the detector construction has been paired with more assays for trace radioactivity in different materials. In particular, the use of custom electroformed copper is now incorporated in the design, leading to a substantial reduction in backgrounds from the intrinsic radioactivity of detector materials. Furthermore, a number of assumptions from previous sensitivity projections have gained further support from interim work validating the nEXO experiment concept. Together these improvements and updates suggest that the nEXO experiment will reach a half-life sensitivity of $1.35\times 10^{28}$ yr at 90% confidence level in 10 years of data taking, covering the parameter space associated with the inverted neutrino mass ordering, along with a significant portion of the parameter space for the normal ordering scenario, for almost all nuclear matrix elements. The effects of backgrounds deviating from the nominal values used for the projections are also illustrated, concluding that the nEXO design is robust against a number of imperfections of the model., Comment: 26 pages, 19 figures, version accepted by Journal of Phys. G
Published: 2021
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5. Measurement of the Spectral Shape of the β -Decay of Xe137 to the Ground State of Cs137 in EXO-200 and Comparison with Theory

Author: T. Tolba, E. V. Hansen, Qing Xia, A. Jamil, A. Pocar, S. Thibado, V. Veeraraghavan, C. Chambers, R. DeVoe, Petr Vogel, David Leonard, R. MacLellan, Thomas Koffas, D. Fudenberg, W. M. Fairbank, M. Coon, J. Davis, M. J. Jewell, T. Daniels, F. Retiere, V.N. Stekhanov, L. J. Kaufman, J. Farine, Jouni Suhonen, A. Piepke, J. Todd, R. Tsang, M. J. Dolinski, Jens Dilling, O. Nusair, L. Darroch, R. Krücken, U. Wichoski, M. Hughes, I. Badhrees, K. Skarpaas, J. Hoessl, V. Belov, A. Robinson, T. Bhatta, A. S. Johnson, T. Ziegler, S. Feyzbakhsh, W. R. Cen, K. Murray, S. Al Kharusi, O. Ya. Zeldovich, G. S. Li, R. Gornea, Martin Breidenbach, M. Wagenpfeil, Gisela Anton, P. Hufschmidt, David A. Sinclair, P. C. Rowson, S. X. Wu, B. Mong, J. L. Vuilleumier, Arun Kumar Soma, C. Licciardi, A. Der Mesrobian-Kabakian, Yuehe Lin, S. J. Daugherty, A. Odian, L. Yang, David Moore, Y. Lan, S. Delaquis, Z. Li, Guofu Cao, Giorgio Gratta, A. Larson, T. Brunner, C. R. Hall, A. Dolgolenko, Thilo Michel, C. Jessiman, I. Ostrovskiy, P. Nakarmi, A. Craycraft, K. S. Kumar, B. T. Cleveland, A. Kuchenkov, O. Njoya, B. G. Lenardo, J. Watkins, A. Iverson, D. R. Yahne, T. McElroy, A. Karelin, Shu Li, S. Schmidt, L. J. Wen, Marc Weber, D. Fairbank, B. Veenstra, J. Kostensalo, J. Echevers, Peter Fierlinger, T. I. Totev, Gerrit Wrede, M. Tarka, Douglas H Beck, P. S. Barbeau, Y-R Yen, D. Ruddell, J. Runge, and P. Gautam
Subjects: Physics, Spectral shape analysis, General Physics and Astronomy, Nuclear data, Context (language use), Electron, 7. Clean energy, 01 natural sciences, Spectral line, 0103 physical sciences, Neutron source, Atomic physics, 010306 general physics, Ground state, Energy (signal processing)
Abstract: We report on a comparison between the theoretically predicted and experimentally measured spectra of the first-forbidden nonunique β-decay transition ^{137}Xe(7/2^{-})→^{137}Cs(7/2^{+}). The experimental data were acquired by the EXO-200 experiment during a deployment of an AmBe neutron source. The ultralow background environment of EXO-200, together with dedicated source deployment and analysis procedures, allowed for collection of a pure sample of the decays, with an estimated signal to background ratio of more than 99 to 1 in the energy range from 1075 to 4175 keV. In addition to providing a rare and accurate measurement of the first-forbidden nonunique β-decay shape, this work constitutes a novel test of the calculated electron spectral shapes in the context of the reactor antineutrino anomaly and spectral bump.
Published: 2020

6. Event Reconstruction in a Liquid Xenon Time Projection Chamber with an Optically-Open Field Cage

Author: B. Chana, N. Roy, L. Cao, O. Nusair, G. St-Hilaire, Douglas H Beck, R. Krücken, F. Nolet, E. Raguzin, P. A. Breur, T. McElroy, T. Bhatta, L. J. Kaufman, Gerard Visser, D. Goeldi, M. Coon, Eric W. Hoppe, F. Vachon, Z. Li, C. Chambers, Veljko Radeka, Cory T. Overman, L. J. Wen, J. L. Vuilleumier, Samuele Sangiorgio, L. Darroch, P. Gautam, P. Nakarmi, Kaixuan Ni, K. S. Kumar, A. De St. Croix, R. Tsang, Haijun Yang, E. V. Hansen, P. Lv, E. Caden, S. X. Wu, J. Hößl, P. S. Barbeau, Lorenzo Fabris, I. J. Arnquist, R. Gornea, P. C. Rowson, V.N. Stekhanov, X. S. Jiang, C. Licciardi, A. Jamil, A. House, A. Piepke, J. Todd, G. Gallina, S. Thibado, Y. Y. Ding, A. Der Mesrobian-Kabakian, N. Massacret, M. Heffner, R. MacLellan, S. Viel, M. Worcester, Thilo Michel, V. Veeraraghavan, Qing Xia, M. Hughes, G. Li, Sergio Ferrara, S. Al Kharusi, R. DeVoe, A. Pocar, M. Walent, B. G. Lenardo, Arun Kumar Soma, S. Feyzbakhsh, Y. Lan, G. S. Ortega, B. T. Cleveland, K. Deslandes, T. Brunner, A. Kuchenkov, M. Medina-Peregrina, Serge A. Charlebois, F. Retiere, David Moore, M. Chiu, J. P. Brodsky, M. Tarka, F. Edaltafar, T. Wager, K. G. Leach, Wei Wu, R.J. Newby, Qun-Yao Wang, Zhijun Ning, M. Oriunno, Aleksey E. Bolotnikov, K. Murray, Gisela Anton, K. Odgers, B. Mong, M. J. Dolinski, David Leonard, Thomas Koffas, W. M. Fairbank, T. Tsang, T. Stiegler, Jean-Francois Pratte, Angelo Dragone, M. Elbeltagi, John L. Orrell, T. Daniels, Wei Wei, H. Rasiwala, I. Ostrovskiy, Yu-Guang Zhou, S. Rescia, D. Fairbank, Guofu Cao, Mike Richman, O. Njoya, T. I. Totev, A. Iverson, K. Skarpaas Viii, Shu Li, Giorgio Gratta, U. Wichoski, L. Yang, T. Rossignol, M. J. Jewell, A. Craycraft, T. Ziegler, Gabriele Giacomini, J. Echevers, Jens Dilling, C.R. Natzke, I. Badhrees, A. Tidball, M. L. di Vacri, C. Vivo-Vilches, S. Parent, A. Odian, O. Zeldovich, R. Saldanha, M. Wagenpfeil, J. Dalmasson, X.L. Sun, J. B. Zhao, X. F. Wu, A. Larson, Ethan Brown, A. Karelin, J. Farine, V. Belov, and A. Robinson
Subjects: Physics, Nuclear and High Energy Physics, Scintillation, Photon, Time projection chamber, Physics - Instrumentation and Detectors, Field (physics), 010308 nuclear & particles physics, chemistry.chemical_element, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Xenon, chemistry, Double beta decay, Ionization, 0103 physical sciences, Atomic physics, 010306 general physics, Instrumentation, Event reconstruction
Abstract: nEXO is a proposed tonne-scale neutrinoless double beta decay ($0\nu\beta\beta$) experiment using liquid ${}^{136}Xe$ (LXe) in a Time Projection Chamber (TPC) to read out ionization and scintillation signals. Between the field cage and the LXe vessel, a layer of LXe ("skin" LXe) is present, where no ionization signal is collected. Only scintillation photons are detected, owing to the lack of optical barrier around the field cage. In this work, we show that the light originating in the skin LXe region can be used to improve background discrimination by 5% over previous published estimates. This improvement comes from two elements. First, a fraction of the $\gamma$-ray background is removed by identifying light from interactions with an energy deposition in the skin LXe. Second, background from ${}^{222}Rn$ dissolved in the skin LXe can be efficiently rejected by tagging the $\alpha$ decay in the ${}^{214}Bi-{}^{214}Po$ chain in the skin LXe., Comment: 11 pages, 12 figures
Published: 2020
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7. East Asian dust storm in May 2017: observations, modelling, and its influence on the Asia-Pacific region

Author: X.-X. Zhang, B. Sharratt, L.-Y. Liu, Z.-F. Wang, X.-L. Pan, J.-Q. Lei, S.-X. Wu, S.-Y. Huang, Y.-H. Guo, J. Li, X. Tang, T. Yang, Y. Tian, X.-S. Chen, J.-Q. Hao, H.-T. Zheng, Y.-Y. Yang, and Y.-L. Lyu
Subjects: Atmospheric Science, geography, geography.geographical_feature_category, 010504 meteorology & atmospheric sciences, Asian Dust, Storm, 010501 environmental sciences, Particulates, 01 natural sciences, lcsh:QC1-999, lcsh:Chemistry, Altitude, lcsh:QD1-999, Peninsula, Dust storm, Climatology, Environmental science, Aeolian processes, East Asia, lcsh:Physics, 0105 earth and related environmental sciences
Abstract: A severe dust storm event originated from the Gobi Desert in Central and East Asia during 2–7 May 2017. Based on Moderate Resolution Imaging Spectroradiometer (MODIS) satellite products, hourly environmental monitoring measurements from Chinese cities and East Asian meteorological observation stations, and numerical simulations, we analysed the spatial and temporal characteristics of this dust event as well as its associated impact on the Asia-Pacific region. The maximum observed hourly PM10 (particulate matter with an aerodynamic diameter ≤ 10 µm) concentration was above 1000 µg m−3 in Beijing, Tianjin, Shijiazhuang, Baoding, and Langfang and above 2000 µg m−3 in Erdos, Hohhot, Baotou, and Alxa in northern China. This dust event affected over 8.35 million km2, or 87 % of the Chinese mainland, and significantly deteriorated air quality in 316 cities of the 367 cities examined across China. The maximum surface wind speed during the dust storm was 23–24 m s−1 in the Mongolian Gobi Desert and 20–22 m s−1 in central Inner Mongolia, indicating the potential source regions of this dust event. Lidar-derived vertical dust profiles in Beijing, Seoul, and Tokyo indicated dust aerosols were uplifted to an altitude of 1.5–3.5 km, whereas simulations by the Weather Research and Forecasting with Chemistry (WRF-Chem) model indicated 20.4 and 5.3 Tg of aeolian dust being deposited respectively across continental Asia and the North Pacific Ocean. According to forward trajectory analysis by the FLEXible PARTicle dispersion (FLEXPART) model, the East Asian dust plume moved across the North Pacific within a week. Dust concentrations decreased from the East Asian continent across the Pacific Ocean from a magnitude of 103 to 10−5 µg m−3, while dust deposition intensity ranged from 104 to 10−1 mg m−2. This dust event was unusual due to its impact on continental China, the Korean Peninsula, Japan, and the North Pacific Ocean. Asian dust storms such as those observed in early May 2017 may lead to wider climate forcing on a global scale.
Published: 2018

8. A Tetramethylsilane TPC with Cherenkov light readout and 3D reconstruction

Author: S. X. Wu, Giorgio Gratta, Marc Weber, and B. G. Lenardo
Subjects: Physics, Nuclear and High Energy Physics, Photomultiplier, Time projection chamber, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, Physics::Instrumentation and Detectors, Detector, Gamma ray, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Electron, Radiation, 01 natural sciences, chemistry.chemical_compound, Optics, chemistry, 0103 physical sciences, 010306 general physics, business, Instrumentation, Tetramethylsilane, Cherenkov radiation
Abstract: We describe the construction and calibration of a multi-channel liquid time projection chamber filled with Tetramethylsilane (TMS). Its charge readout system consists of 8 wires each in the $X$ and $Y$ directions. The chamber is also equipped with a Cherenkov light readout system consisting of a 5-inch photomultiplier tube (PMT) coupled to the liquid volume through a viewport. The energy scale of the detector is calibrated using positron-electron pairs produced by 4.4 MeV gamma rays emitted from an AmBe source, using an external trigger on the positron annihilation gammas. The external trigger is then reconfigured to tag cosmic ray muons passing through the active TMS volume, which are used to measure the stopping power in TMS and the electron lifetime in the detector. We find a most-probable energy loss from minimum ionising particles (MIPs) of $\Delta_p/ds$ = (0.60$\pm$0.01) MeV/cm. We also derive an electron lifetime of 43$^{+680}_{-21}~\mu$s by measuring the most-probable energy loss as a function of drift time. For both fast electron and muon signals, the PMT detects prompt Cherenkov light, demonstrating the possibility of random triggering. The room-temperature organic target medium, together with the self-triggering capabilities and long electron lifetimes reported in this work, make this an attractive technology to further explore for rare event detectors or other applications in the area of radiation measurements., Comment: 8 pages, 12 figures
Published: 2019

9. Measurements of electron transport in liquid and gas Xenon using a laser-driven photocathode

Author: R. Saldanha, I. Ostrovskiy, D. Kodroff, M. J. Dolinski, S. Rescia, John L. Orrell, T. Daniels, P. Gautam, D. Fairbank, Z. Li, E. Caden, E. V. Hansen, Gerard Visser, J. Watkins, Mike Richman, O. Njoya, R. MacLellan, He-Run Yang, A. Iverson, Triveni Rao, K. Skarpaas Viii, Liang Yang, R. Tsang, Gabriele Giacomini, A. Jamil, Pengpeng Lv, O. Nusair, R. Krücken, Shu Li, J. Echevers, Yu-Guang Zhou, Sergio Ferrara, B. Chana, Y. Lan, M. L. di Vacri, U. Wichoski, T. Wager, J. P. Brodsky, C. Vivo-Vilches, I. J. Arnquist, D. Beck, Thilo Michel, Y-R Yen, T. Tsang, T. Tolba, J. Runge, Yuehe Lin, T. Ziegler, Qun-Yao Wang, P. Nakarmi, Guofu Cao, M. Hughes, Jens Dilling, R. Fontaine, David Leonard, M. Heffner, Angelo Dragone, J. L. Vuilleumier, M. Walent, S. Al Kharusi, I. Badhrees, M. Tarka, Thomas Koffas, W. M. Fairbank, B. G. Lenardo, S. Viel, Arun Kumar Soma, T. Brunner, D. Goeldi, L. J. Kaufman, T. Stiegler, Samuele Sangiorgio, Xuan Wu, K. S. Kumar, S. Parent, M. Elbeltagi, M. Coon, K. G. Leach, David Moore, Wei Wei, Qing Xia, J. Farine, G. S. Ortega, Cory T. Overman, Wei Wu, R.J. Newby, P. C. Rowson, S. X. Wu, S. J. Daugherty, Serge A. Charlebois, A. House, G. St-Hilaire, S. Feyzbakhsh, P. S. Barbeau, A. Robinson, T. Bhatta, V. A. Belov, A.C. Odian, O. Zeldovich, Eric W. Hoppe, A. Piepke, J. Todd, L. Darroch, Y. Y. Ding, M. Oriunno, C. Chambers, A. Pocar, V.N. Stekhanov, B. T. Cleveland, T. Rossignol, A. Kuchenkov, M. J. Jewell, Veljko Radeka, X. S. Jiang, C. Licciardi, G. Gallina, A. Der Mesrobian-Kabakian, V. Veeraraghavan, A. Fucarino, Giorgio Gratta, M. Chiu, K. Murray, Gisela Anton, K. Odgers, E. Raguzin, J. Hossl, R. DeVoe, W. R. Cen, M. Medina-Peregrina, R. Gornea, F. Retiere, B. Mong, M. Wagenpfeil, J. Dalmasson, M. Ward, G. S. Li, X.L. Sun, J. B. Zhao, A. Larson, A. Craycraft, Ethan Brown, C.R. Natzke, A. Karelin, Jean-Francois Pratte, Z. Ning, T. I. Totev, A. De St. Croix, Lorenzo Fabris, N. Roy, L. Cao, F. Nolet, T. McElroy, F. Vachon, L. J. Wen, and Marc Weber
Subjects: Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, chemistry.chemical_element, Electron, medicine.disease_cause, 7. Clean energy, 01 natural sciences, Photocathode, Xenon, Electric field, 0103 physical sciences, medicine, Nuclear Experiment (nucl-ex), 010306 general physics, Instrumentation, Nuclear Experiment, Physics, Argon, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), Photoelectric effect, chemistry, Quantum efficiency, High Energy Physics::Experiment, Atomic physics, Ultraviolet
Abstract: Measurements of electron drift properties in liquid and gaseous xenon are reported. The electrons are generated by the photoelectric effect in a semi-transparent gold photocathode driven in transmission mode with a pulsed ultraviolet laser. The charges drift and diffuse in a small chamber at various electric fields and a fixed drift distance of 2.0 cm. At an electric field of 0.5 kV/cm, the measured drift velocities and corresponding temperature coefficients respectively are 1 . 97 ± 0 . 04 m m ∕ μ s and ( − 0 . 69 ± 0 . 05 ) %/K for liquid xenon, and 1 . 42 ± 0 . 03 m m ∕ μ s and ( + 0 . 11 ± 0 . 01 ) %/K for gaseous xenon at 1.5 bar. In addition, we measure longitudinal diffusion coefficients of 25 . 7 ± 4 . 6 cm 2 /s and 149 ± 23 cm 2 /s, for liquid and gas, respectively. The quantum efficiency of the gold photocathode is studied at the photon energy of 4.73 eV in liquid and gaseous xenon, and vacuum. These charge transport properties and the behavior of photocathodes in a xenon environment are important in designing and calibrating future large scale noble liquid detectors.
Published: 2019

10. Search for Neutrinoless Double-Beta Decay with the Complete EXO-200 Dataset

Author: D. R. Yahne, B. T. Cleveland, A. Kuchenkov, V.N. Stekhanov, C. Chambers, J. Watkins, J. Farine, C. R. Hall, A. Dolgolenko, D. Fudenberg, A. Craycraft, Peter Fierlinger, Gerrit Wrede, M. Tarka, J. Hoessl, Jens Dilling, D. Ruddell, V. Belov, I. Badhrees, L. Darroch, R. MacLellan, A. Robinson, A. Karelin, Qing Xia, Thilo Michel, J. Runge, Yuehe Lin, A. Odian, M. Hughes, R. DeVoe, M. Wagenpfeil, U. Wichoski, L. J. Kaufman, I. Ostrovskiy, Z. Li, B. G. Lenardo, Petr Vogel, A. Pocar, T. Ziegler, M. Danilov, T. Brunner, David Leonard, Giorgio Gratta, A. Piepke, J. Todd, A. Larson, O. Nusair, R. Krücken, P. S. Barbeau, O. Njoya, Thomas Koffas, K. S. Kumar, S. X. Wu, David Moore, J. L. Vuilleumier, W. M. Fairbank, O. Ya. Zeldovich, A. Iverson, M. J. Dolinski, P. Gautam, Shu Li, S. Schmidt, J. Davis, C. Jessiman, W. R. Cen, B. Mong, Y. Lan, R. Gornea, E. V. Hansen, T. Tolba, M. J. Jewell, F. Retiere, A. S. Johnson, Liang Yang, A. Jamil, M. Coon, Douglas H Beck, T. Daniels, Guofu Cao, Y-R Yen, S. Feyzbakhsh, Arun Kumar Soma, G. S. Li, P. Hufschmidt, David A. Sinclair, D. Fairbank, C. Licciardi, A. Der Mesrobian-Kabakian, J. Echevers, B. Veenstra, T. I. Totev, T. McElroy, L. J. Wen, Marc Weber, Martin Breidenbach, S. J. Daugherty, T. Bhatta, V. Veeraraghavan, K. Murray, Gisela Anton, P. C. Rowson, and S. Delaquis
Subjects: Physics, Q value, Resolution (electron density), Detector, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, Lower limit, ddc, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Sensitivity (control systems), Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Energy (signal processing)
Abstract: A search for neutrinoless double-beta decay ($0\nu\beta\beta$) in $^{136}$Xe is performed with the full EXO-200 dataset using a deep neural network to discriminate between $0\nu\beta\beta$ and background events. Relative to previous analyses, the signal detection efficiency has been raised from 80.8% to 96.4$\pm$3.0% and the energy resolution of the detector at the Q-value of $^{136}$Xe $0\nu\beta\beta$ has been improved from $\sigma/E=1.23\%$ to $1.15\pm0.02\%$ with the upgraded detector. Accounting for the new data, the median 90% confidence level $0\nu\beta\beta$ half-life sensitivity for this analysis is $5.0 \cdot 10^{25}$ yr with a total $^{136}$Xe exposure of 234.1 kg$\cdot$yr. No statistically significant evidence for $0\nu\beta\beta$ is observed, leading to a lower limit on the $0\nu\beta\beta$ half-life of $3.5\cdot10^{25}$ yr at the 90% confidence level., Comment: v1, 7 pages, 5 figures; v2, fix references; v3, update to accepted version
Published: 2019

11. Characterization of the Hamamatsu VUV4 MPPCs for nEXO

Author: P. Giampa, G. Li, D. Kodroff, M. Wagenpfeil, J. Dalmasson, Eric W. Hoppe, N. Roy, David Leonard, J. Blatchford, Thomas Koffas, E. V. Hansen, W. M. Fairbank, P. Gautam, B. T. Cleveland, K. Odgers, L. Cao, Liang Yang, A. Jamil, S. Rescia, T. Stiegler, E. Raguzin, M. Elbeltagi, R. MacLellan, A. Kuchenkov, Arun Kumar Soma, F. Nolet, X.L. Sun, T. Bhatta, D. Fairbank, J. B. Zhao, T. McElroy, A. Larson, Jean-Francois Pratte, B. Mong, F. Vachon, Marc Weber, G. St-Hilaire, P. Margetak, P. Nakarmi, M. Chiu, J. Farine, J. Echevers, C. Chambers, G. Zhang, M. Oriunno, P. C. Rowson, A. Robinson, I. J. Arnquist, S. X. Wu, Douglas H Beck, Qing Xia, U. Wichoski, Ethan Brown, A. House, K. Murray, Y-R Yen, L. Darroch, G. S. Ortega, R. DeVoe, Gisela Anton, T. Ziegler, O. Zeldovich, J. P. Brodsky, T. I. Totev, M. Heffner, Qun-Yao Wang, T. Tolba, W. R. Cen, S. J. Daugherty, A. De St. Croix, G. Gallina, R. Gornea, Serge A. Charlebois, T. Rossignol, Zhijun Ning, M. Tarka, M. J. Jewell, Lorenzo Fabris, J. L. Vuilleumier, M. Walent, John L. Orrell, T. Daniels, R. Tsang, B. G. Lenardo, T. Brunner, K. Skarpaas, P. Lv, V. Veeraraghavan, A. Karelin, J. Todd, Y. Y. Ding, O. Nusair, R. Krücken, Veljko Radeka, Wei Wu, R.J. Newby, M. Hughes, R. Saldanha, S. Al Kharusi, Giorgio Gratta, Martin Ward, He-Run Yang, David Moore, M. Alfaris, S. Feyzbakhsh, A. Craycraft, Y. Ito, L. J. Kaufman, Y. Lan, Yuehe Lin, Z. Li, Samuele Sangiorgio, Wei Wei, F. Retière, K. S. Kumar, J. Hößl, P. S. Barbeau, V. A. Belov, Thilo Michel, J. Kroeger, Xuan Wu, A. Pocar, A. Piepke, V.N. Stekhanov, D. Qiu, M. Coon, Cory T. Overman, T. Tsang, Angelo Dragone, Gabriele Giacomini, Jens Dilling, I. Badhrees, S. Parent, A. Odian, I. Ostrovskiy, Gerard Visser, Mike Richman, O. Njoya, A. Iverson, Shu Li, J. Watkins, M. Medina-Peregrina, X. S. Jiang, C. Licciardi, A. Der Mesrobian-Kabakian, Yu-Guang Zhou, Liangjian Wen, Luca Doria, Guofu Cao, Rejean Fontaine, and M. J. Dolinski
Subjects: 010302 applied physics, Physics, Nuclear and High Energy Physics, Scintillation, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Analytical chemistry, FOS: Physical sciences, chemistry.chemical_element, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Xenon, chemistry, 0103 physical sciences, Saturation (graph theory), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation, Photon detection, Dark current
Abstract: In this paper we report on the characterization of the Hamamatsu VUV4 (S/N: S13370-6152) Vacuum Ultra-Violet (VUV) sensitive Multi-Pixel Photon Counters (MPPC)s as part of the development of a solution for the detection of liquid xenon scintillation light for the nEXO experiment. Various MPPC features, such as: dark noise, gain, correlated avalanches, direct crosstalk and Photon Detection Efficiency (PDE) were measured in a dedicated setup at TRIUMF. MPPCs were characterized in the range 163 K ≤ T ≤ 233 K . At an over voltage of 3 . 1 ± 0 . 2 V and at T = 163 K we report a number of Correlated Avalanches (CAs) per pulse in the 1 μ s interval following the trigger pulse of 0 . 161 ± 0 . 005 . At the same settings the Dark-Noise (DN) rate is 0 . 137 ± 0 . 002 Hz/mm 2 . Both the number of CAs and the DN rate are within nEXO specifications. The PDE of the Hamamatsu VUV4 was measured for two different devices at T = 233 K for a mean wavelength of 189 ± 7 nm . At 3 . 6 ± 0 . 2 V and 3 . 5 ± 0 . 2 V of over voltage we report a PDE of 13 . 4 ± 2 . 6 % and 11 ± 2 % , corresponding to a saturation PDE of 14 . 8 ± 2 . 8 % and 12 . 2 ± 2 . 3 % , respectively. Both values are well below the 24 % saturation PDE advertised by Hamamatsu. More generally, the second device tested at 3 . 5 ± 0 . 2 V of over voltage is below the nEXO PDE requirement. The first one instead yields a PDE that is marginally close to meeting the nEXO specifications. This suggests that with modest improvements the Hamamatsu VUV4 MPPCs could be considered as an alternative to the FBK-LF Silicon Photo-Multipliers for the final design of the nEXO detector.
Published: 2019

12. Reflectance of Silicon Photomultipliers at Vacuum Ultraviolet Wavelengths

Author: E. Caden, S. Rescia, D. Fairbank, G. St-Hilaire, Thilo Michel, A. Craycraft, Jens Dilling, I. Badhrees, A. De St. Croix, X. S. Jiang, C. Licciardi, J. Farine, M. Walent, S. Feyzbakhsh, V. Belov, C.R. Natzke, B. G. Lenardo, A. Robinson, P. Nakarmi, A. Der Mesrobian-Kabakian, T. Brunner, L. Darroch, J. Echevers, Xuan Wu, S. Parent, A. Odian, A. Fucarino, Jean-Francois Pratte, Yu-Guang Zhou, E. Raguzin, T. Rossignol, Z. Li, O. Nusair, J. L. Vuilleumier, R. Krücken, M. Hughes, V. Veeraraghavan, M. J. Jewell, R. Saldanha, T. I. Totev, P. A. Breur, K. Skarpaas, Gerard Visser, S. Al Kharusi, I. Ostrovskiy, B. T. Cleveland, A. Kuchenkov, Liangjian Wen, Luca Doria, Guofu Cao, Samuele Sangiorgio, Wei Wei, K. S. Kumar, Mike Richman, David Moore, O. Njoya, A. Iverson, T. Bhatta, M. Chiu, G. S. Li, Thomas Tsang, Shu Li, Y. Lan, B. Chana, Douglas H Beck, L. Yang, M. Oriunno, J. P. Brodsky, P. S. Barbeau, He-Run Yang, R. DeVoe, K. Murray, J. Watkins, M. Tarka, Gisela Anton, R. Tsang, M. L. di Vacri, K. Odgers, M. J. Dolinski, M. Medina-Peregrina, C. Vivo-Vilches, F. Retiere, U. Wichoski, Sergio Ferrara, O. Zeldovich, K. G. Leach, T. Ziegler, R. Gornea, K. Deslandes, David Leonard, Giorgio Gratta, Thomas Koffas, W. M. Fairbank, Wei Wu, R.J. Newby, P. C. Rowson, T. Stiegler, M. Elbeltagi, Lorenzo Fabris, J. Hobl, A. House, N. Roy, L. Cao, F. Nolet, N. Massacret, T. McElroy, S. X. Wu, F. Vachon, C. Chambers, R. MacLellan, A. Pocar, V.N. Stekhanov, P. Gautam, F. Edaltafar, D. Goeldi, M. Coon, I. J. Arnquist, J. Runge, Cory T. Overman, M. Heffner, S. Viel, G. Gallina, Angelo Dragone, Gabriele Giacomini, P. Lv, A. Piepke, J. Todd, Y. Y. Ding, Veljko Radeka, T. Wager, Qun-Yao Wang, Zhijun Ning, E. V. Hansen, A. Jamil, Arun Kumar Soma, Qing Xia, S. Byrne Mamahit, Ethan Brown, A. Karelin, G. S. Ortega, M. Wagenpfeil, J. Dalmasson, X.L. Sun, J. B. Zhao, A. Larson, Serge A. Charlebois, John L. Orrell, T. Daniels, B. Mong, L. J. Kaufman, and Eric W. Hoppe
Subjects: Nuclear and High Energy Physics, Materials science, Physics - Instrumentation and Detectors, Silicon, chemistry.chemical_element, Photodetector, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Xenon, Silicon photomultiplier, 0103 physical sciences, Wafer, Electrical and Electronic Engineering, 010308 nuclear & particles physics, business.industry, Instrumentation and Detectors (physics.ins-det), Nuclear Energy and Engineering, chemistry, Optoelectronics, Diffuse reflection, Photonics, business, Refractive index
Abstract: Characterization of the vacuum ultraviolet (VUV) reflectance of silicon photomultipliers (SiPMs) is important for large-scale SiPM-based photodetector systems. We report the angular dependence of the specular reflectance in a vacuum of SiPMs manufactured by Fondazionc Bruno Kessler (FBK) and Hamamatsu Photonics K.K. (HPK) over wavelengths ranging from 120 nm to 280 nm. Refractive index and extinction coefficient of the thin silicon-dioxide film deposited on the surface of the FBK SiPMs are derived from reflectance data of a FBK silicon wafer with the same deposited oxide film as SiPMs. The diffuse reflectance of SiPMs is also measured at 193 nm. We use the VUV spectral dependence of the optical constants to predict the reflectance of the FBK silicon wafer and FBK SiPMs in liquid xenon.
Published: 2019
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13. Simulation of charge readout with segmented tiles in nEXO

Author: F. Retière, M. Medina-Peregrina, Venkatesh Veeraraghavan, J. Hößl, Gerard Visser, J. L. Vuilleumier, L. Darroch, M. Chiu, J. Watkins, V. A. Belov, Yang Haibo, A. De St. Croix, V. Radeka, D. Fairbank, T. McElroy, T. Bhatta, A. Pocar, D. S. Leonard, J. Echevers, E. Caden, A. Craycraft, R. DeVoe, Lorenzo Fabris, C. T. Overman, E. Raguzin, C. Vivo-Vilches, Qing Xia, M. J. Jewell, Xiaoyang Sun, R. Gornea, J. Dalmasson, S. Feyzbakhsh, P. Gautam, G. S. Ortega, A. Piepke, I. Ostrovskiy, P. Lv, M. Hughes, Thilo Michel, T. Ziegler, C.R. Natzke, Z. Ning, Xuan Wu, F. Vachon, Sergio Ferrara, Serge A. Charlebois, S. X. Wu, V.N. Stekhanov, M. Walent, S. Al Kharusi, J. B. Zhao, A. Larson, A. Der Mesrobian-Kabakian, A. E. Robinson, Mike Richman, B. G. Lenardo, T. Brunner, A. Fucarino, David Moore, N. Roy, L. Cao, F. Nolet, J. Todd, M. Heffner, D. Kodroff, T. Tolba, Jean-Francois Pratte, M. Oriunno, John L. Orrell, T. Daniels, B. Mong, Rejean Fontaine, Ethan Brown, Qian Wang, Y. Lan, K. Murray, G. Giacomini, T. Stiegler, O. Njoya, A. Iverson, K. Skarpaas Viii, Thomas Tsang, R. Saldanha, Shu Li, Y. Y. Ding, Z. Li, Gisela Anton, O. Zeldovich, Marc Weber, E. Hansen, A. Karelin, O. Nusair, R. Krücken, Jens Dilling, R. MacLellan, B. Chana, Giorgio Gratta, P. S. Barbeau, Yumei Zhou, I. Badhrees, R. Tsang, Martin Ward, T. I. Totev, D. Goeldi, M. Coon, Liangjian Wen, Douglas H Beck, Guofu Cao, Angelo Dragone, W. R. Cen, S. J. Daugherty, Thomas Koffas, Xiaoshan Jiang, W. M. Fairbank, M. Elbeltagi, Y-R Yen, S. Rescia, M. J. Dolinski, A. Odian, S. Parent, J. Runge, J. P. Brodsky, P. Nakarmi, U. Wichoski, S. Viel, C. Licciardi, G. Gallina, T. Rossignol, M. L. Di Vacri, L. J. Kaufman, Eric W. Hoppe, Liang Yang, A. Jamil, Arun Kumar Soma, Yuehe Lin, Samuele Sangiorgio, Wei Wei, K. S. Kumar, J. Farine, I. J. Arnquist, K. G. Leach, G. St-Hilaire, Wei Wu, R.J. Newby, P. C. Rowson, A. House, M. Tarka, G. Li, B. T. Cleveland, K. Odgers, A. Kuchenkov, M. Wagenpfeil, and C. Chambers
Subjects: Physics, Physics - Instrumentation and Detectors, Time projection chamber, 010308 nuclear & particles physics, Detector, chemistry.chemical_element, FOS: Physical sciences, Charge (physics), Instrumentation and Detectors (physics.ins-det), 01 natural sciences, 030218 nuclear medicine & medical imaging, Anode, Nuclear physics, 03 medical and health sciences, 0302 clinical medicine, Xenon, chemistry, Double beta decay, 0103 physical sciences, Beta (velocity), Sensitivity (control systems), Nuclear Experiment (nucl-ex), Nuclear Experiment, Instrumentation, Mathematical Physics
Abstract: nEXO is a proposed experiment to search for the neutrino-less double beta decay ($0\nu\beta\beta$) of $^{136}$Xe in a tonne-scale liquid xenon time projection chamber (TPC). The nEXO TPC will be equipped with charge collection tiles to form the anode. In this work, the charge reconstruction performance of this anode design is studied with a dedicated simulation package. A multi-variate method and a deep neural network are developed to distinguish simulated $0\nu\beta\beta$ signals from backgrounds arising from trace levels of natural radioactivity in the detector materials. These simulations indicate that the nEXO TPC with charge-collection tiles shows promising capability to discriminate the $0\nu\beta\beta$ signal from backgrounds. The estimated half-life sensitivity for $0\nu\beta\beta$ decay is improved by $\sim$20$~(32)\%$ with the multi-variate~(deep neural network) methods considered here, relative to the sensitivity estimated in the nEXO pre-conceptual design report.
Published: 2019
Full Text: View/download PDF

14. Reflectivity and PDE of VUV4 Hamamatsu SiPMs in Liquid Xenon

Author: Gerard Visser, M. Walent, B. G. Lenardo, T. Brunner, V. Veeraraghavan, T. Bhatta, Giorgio Gratta, F. Edaltafar, T. Rossignol, M. J. Jewell, J. Watkins, P. Nakarmi, Arun Kumar Soma, Ethan Brown, L. Darroch, O. Nusair, R. Krücken, S. X. Wu, David Leonard, J. Blatchford, E. Caden, Thomas Koffas, W. M. Fairbank, T. Stiegler, M. Elbeltagi, L. J. Kaufman, M. Hughes, X. S. Jiang, C. Licciardi, A. Craycraft, Eric W. Hoppe, S. Al Kharusi, A. Karelin, G. Gallina, P. Gautam, R. Saldanha, M. Chiu, J. L. Vuilleumier, T. Wager, A. Der Mesrobian-Kabakian, David Moore, C. Chambers, M. Oriunno, E. V. Hansen, M. Alfaris, M. Wagenpfeil, J. Dalmasson, Sergio Ferrara, R. MacLellan, Qun-Yao Wang, K. Murray, Gabriele Giacomini, I. J. Arnquist, Liang Yang, Y. Lan, U. Wichoski, C.R. Natzke, S. Feyzbakhsh, A. Jamil, Gisela Anton, J. Runge, Zhijun Ning, T. Ziegler, K. G. Leach, R. Tsang, X.L. Sun, J. B. Zhao, M. Heffner, K. Odgers, S. Viel, Wei Wu, R.J. Newby, A. Fucarino, A. Larson, Z. Li, B. Chana, Douglas H Beck, Samuele Sangiorgio, K. S. Kumar, Veljko Radeka, P. C. Rowson, A. House, N. Massacret, Jean-Francois Pratte, P. Lv, J. Todd, Angelo Dragone, B. Mong, Y. Y. Ding, M. Ward, T. I. Totev, G. S. Li, M. L. di Vacri, R. DeVoe, C. Vivo-Vilches, Qing Xia, S. Byrne Mamahit, G. S. Ortega, R. Fontaine, J. Farine, Serge A. Charlebois, John L. Orrell, T. Daniels, V. Belov, A. Robinson, N. Roy, L. Cao, F. Nolet, T. McElroy, F. Vachon, Marc Weber, A. De St. Croix, Lorenzo Fabris, B. T. Cleveland, D. Goeldi, M. Coon, A. Kuchenkov, Cory T. Overman, S. Rescia, D. Fairbank, G. St-Hilaire, J. P. Brodsky, He-Run Yang, A. Piepke, M. Tarka, V.N. Stekhanov, J. Echevers, A. Pocar, O. Zeldovich, Yu-Guang Zhou, Liangjian Wen, Luca Doria, Guofu Cao, Thilo Michel, Wei Wei, I. Ostrovskiy, M. J. Dolinski, E. Raguzin, P. A. Breur, Xuan Wu, Mike Richman, F. Retière, O. Njoya, A. Iverson, M. Medina-Peregrina, J. Hößl, K. Skarpaas Viii, P. S. Barbeau, Thomas Tsang, Shu Li, R. Gornea, Jens Dilling, I. Badhrees, S. Parent, and A. Odian
Subjects: Materials science, Physics - Instrumentation and Detectors, APDS, Physics::Instrumentation and Detectors, Photodetector, chemistry.chemical_element, FOS: Physical sciences, Photodetection, 01 natural sciences, 030218 nuclear medicine & medical imaging, law.invention, High Energy Physics - Experiment, 03 medical and health sciences, High Energy Physics - Experiment (hep-ex), 0302 clinical medicine, Silicon photomultiplier, Optics, Xenon, law, 0103 physical sciences, Specular reflection, Instrumentation, Mathematical Physics, Scintillation, 010308 nuclear & particles physics, business.industry, Instrumentation and Detectors (physics.ins-det), Wavelength, chemistry, business
Abstract: Understanding reflective properties of materials and photodetection efficiency (PDE) of photodetectors is important for optimizing energy resolution and sensitivity of the next generation neutrinoless double beta decay, direct detection dark matter, and neutrino oscillation experiments that will use noble liquid gases, such as nEXO, DARWIN, DarkSide-20k, and DUNE. Little information is currently available about reflectivity and PDE in liquid noble gases, because such measurements are difficult to conduct in a cryogenic environment and at short enough wavelengths. Here we report a measurement of specular reflectivity and relative PDE of Hamamatsu VUV4 silicon photomultipliers (SiPMs) with 50 micrometer micro-cells conducted with xenon scintillation light (~175 nm) in liquid xenon. The specular reflectivity at 15 deg. incidence of three samples of VUV4 SiPMs is found to be 30.4+/-1.4%, 28.6+/-1.3%, and 28.0+/-1.3%, respectively. The PDE at normal incidence differs by +/-8% (standard deviation) among the three devices. The angular dependence of the reflectivity and PDE was also measured for one of the SiPMs. Both the reflectivity and PDE decrease as the angle of incidence increases. This is the first measurement of an angular dependence of PDE and reflectivity of a SiPM in liquid xenon., Comment: 21 pages, 15 figures, 6 tables. As accepted by JINST
Published: 2019
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15. Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experiment

Author: E. V. Hansen, D. Fudenberg, Liang Yang, A. Jamil, M. J. Jewell, L. Darroch, M. Wagenpfeil, Giorgio Gratta, M. J. Dolinski, P. Hufschmidt, David A. Sinclair, G. S. Li, Thilo Michel, D. Fairbank, J. L. Vuilleumier, M. Hughes, T. Bhatta, R. MacLellan, A.C. Odian, I. Ostrovskiy, A. Larson, T. Tolba, P. C. Rowson, C. Jessiman, A. Pocar, C. Licciardi, J. Echevers, B. Mong, O. Ya. Zeldovich, A. Der Mesrobian-Kabakian, R. Neilson, T. Brunner, S. Delaquis, L. J. Kaufman, T. McElroy, David Moore, A. Karelin, A. S. Johnson, J. Watkins, V. Veeraraghavan, L. J. Wen, Marc Weber, Arun Kumar Soma, V.N. Stekhanov, S. X. Wu, D. R. Yahne, C. R. Hall, R. DeVoe, A. Piepke, J. Todd, Martin Breidenbach, David Leonard, S. J. Daugherty, O. Njoya, J. Farine, A. Dolgolenko, A. Craycraft, D. Beck, Thomas Koffas, Qing Xia, D. Tosi, W. M. Fairbank, A. Iverson, C. Chambers, J. Hoessl, P. S. Barbeau, J. Runge, W. R. Cen, R. Gornea, M. Coon, Y-R Yen, Shu Li, S. Schmidt, Guofu Cao, A. Robinson, F. Retiere, V. A. Belov, O. Nusair, R. Krücken, Jens Dilling, B. Veenstra, K. Murray, I. Badhrees, T. I. Totev, P. Gautam, T. Daniels, J. Davis, Gisela Anton, Z. Li, U. Wichoski, T. Ziegler, B. G. Lenardo, Peter Fierlinger, Gerrit Wrede, M. Tarka, B. T. Cleveland, A. Kuchenkov, Y. Lan, S. Feyzbakhsh, Yuehe Lin, and K. S. Kumar
Subjects: Physics, Scintillation, Range (particle radiation), Physics - Instrumentation and Detectors, Photon, Argon, 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, chemistry.chemical_element, FOS: Physical sciences, Electron, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Xenon, chemistry, Electric field, Ionization, 0103 physical sciences, 010306 general physics
Abstract: Liquid xenon (LXe) is employed in a number of current and future detectors for rare event searches. We use the EXO-200 experimental data to measure the absolute scintillation and ionization yields generated by $\gamma$ interactions from $^{228}$Th (2615~keV), $^{226}$Ra (1764~keV) and $^{60}$Co (1332~keV and 1173~keV) calibration sources, over a range of electric fields. The $W$-value that defines the recombination-independent energy scale is measured to be $11.5~\pm~0.5$~(syst.)~$\pm~0.1$~(stat.) eV. These data are also used to measure the recombination fluctuations in the number of electrons and photons produced by the calibration sources at the MeV-scale, which deviate from extrapolations of lower-energy data. Additionally, a semi-empirical model for the energy resolution of the detector is developed, which is used to constrain the recombination efficiency, i.e., the fraction of recombined electrons that result in the emission of a detectable photon. Detailed measurements of the absolute charge and light yields for MeV-scale electron recoils are important for predicting the performance of future neutrinoless double beta decay detectors.
Published: 2019
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16. Synthesis, field emission properties and optical properties of ZnSe nanoflowers

Author: S. Y. Bu, Rujia Zou, P. F. Zhu, X. N. Ye, K. X. Gan, Jia Wei, Shaolin Xue, C. M. Zhang, Pei Xie, Q. Z. Zeng, L. Xie, and S. X. Wu
Subjects: Materials science, Scanning electron microscope, Analytical chemistry, General Physics and Astronomy, 02 engineering and technology, Surfaces and Interfaces, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Nanoclusters, symbols.namesake, Field electron emission, X-ray photoelectron spectroscopy, Transmission electron microscopy, symbols, Nanorod, 0210 nano-technology, Raman spectroscopy, High-resolution transmission electron microscopy
Abstract: ZnSe nanoflowers have been synthesized by reaction of Se powder with Zn substrates at low temperature. The as-prepared ZnSe nanoflowers were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), X-ray energy dispersive spectroscope (EDS) and Raman spectroscopy measurements. It was found that the morphologies of the as-prepared samples highly depended on reaction time. ZnSe nanoclusters and nanoflowers formed at 573 K when the reaction time was 20 and 60 min, respectively. The as-prepared ZnSe nanoflowers were composed of radically aligned ZnSe nanorods with smooth surfaces. The results of XRD, XPS, EDS, TEM and Raman showed that the as-prepared ZnSe nanocrystals were single crystals with cubic zinc blende (ZB) structure. The formation mechanism of the as-prepared ZnSe nanoflowers was also discussed. In addition, the as-prepared ZnSe nanoflowers had excellent electron emission properties. The turn-on field of the as-prepared ZnSe nanoflowers was 3.5 V/μm and the enhancement factor was 3499. The optical properties of the as-prepared ZnSe nanoflowers were also investigated. The results demonstrated that the as-prepared ZnSe nanoflowers were potential candidates for optoelectronic devices.
Published: 2016

17. Magnetic properties of Mn2N0.86 (111) thin film grown on MgO (001) substrate by molecular beam epitaxy

Author: Wei Zhou, Gang Wang, Yunjia Wang, S. X. Wu, M. Meng, and S. W. Li
Subjects: Diffraction, Materials science, Mechanical Engineering, 02 engineering and technology, Substrate (electronics), 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Crystallography, Crystallinity, Electron diffraction, Ferromagnetism, Mechanics of Materials, Phase (matter), 0103 physical sciences, General Materials Science, Thin film, 010306 general physics, 0210 nano-technology, Molecular beam epitaxy
Abstract: (111)-oriented Mn 2 N 0.86 thin films were fabricated on (001)-oriented MgO substrates by plasma-assisted molecular beam epitaxy. In-situ reflection high-energy electron diffraction and ex-situ X-ray diffraction results demonstrated that the (111)-oriented Mn 2 N 0.86 thin films were single phase. The rocking curve manifested a very good crystallinity of Mn 2 N 0.86 (111) phase and the thickness of the film was studied by X-ray reflectivity. The magnetic properties of the (111)-oriented Mn 2 N 0.86 thin films were investigated and room-temperature ferromagnetism that was absent in the bulk samples was observed. Strain imposed by the substrates was proposed to explain this phenomenon.
Published: 2016

18. VUV-sensitive Silicon Photomultipliers for Xenon Scintillation Light Detection in nEXO

Author: A. Jamil, T. Ziegler, P. Hufschmidt, G. Li, L. Lupin-Jimenez, T. Michel, I. Ostrovskiy, F. Retiere, J. Schneider, M. Wagenpfeil, A. Alamre, J. B. Albert, G. Anton, I. J. Arnquist, I. Badhrees, P. S. Barbeau, D. Beck, V. Belov, T. Bhatta, F. Bourque, J. P. Brodsky, E. Brown, T. Brunner, A. Burenkov, G. F. Cao, L. Cao, W. R. Cen, C. Chambers, S. A. Charlebois, M. Chiu, B. Cleveland, M. Coon, M. Cote, A. Craycraft, W. Cree, J. Dalmasson, T. Daniels, L. Darroch, S. J. Daugherty, J. Daughhetee, S. Delaquis, A. Der Mesrobian-Kabakian, R. DeVoe, J. Dilling, Y. Y. Ding, M. J. Dolinski, A. Dragone, J. Echevers, L. Fabris, D. Fairbank, W. Fairbank, J. Farine, S. Feyzbakhsh, R. Fontaine, D. Fudenberg, G. Gallina, G. Giacomini, R. Gornea, G. Gratta, E. V. Hansen, D. Harris, M. Hasan, M. Heffner, J. HoBl, E. W. Hoppe, A. House, M. Hughes, Y. Ito, A. Iverson, C. Jessiman, M. J. Jewell, X. S. Jiang, A. Karelin, L. J. Kaufman, T. Koffas, S. Kravitz, R. Krucken, A. Kuchenkov, K. S. Kumar, Y. Lan, A. Larson, D. S. Leonard, S. Li, Z. Li, C. Licciardi, Y. H. Lin, P. Lv, R. MacLellan, B. Mong, D. C. Moore, K. Murray, R. J. Newby, Z. Ning, O. Njoya, F. Nolet, O. Nusair, K. Odgers, A. Odian, M. Oriunno, J. L. Orrell, G. S. Ortega, C. T. Overman, S. Parent, A. Piepke, A. Pocar, J.-F. Pratte, D. Qiu, V. Radeka, E. Raguzin, T. Rao, S. Rescia, A. Robinson, T. Rossignol, P. C. Rowson, N. Roy, R. Saldanha, S. Sangiorgio, S. Schmidt, A. Schubert, D. Sinclair, K. Skarpaas, A. K. Soma, G. St-Hilaire, V. Stekhanov, T. Stiegler, X. L. Sun, M. Tarka, J. Todd, T. Tolba, T. I. Totev, R. Tsang, T. Tsang, F. Vachon, B. Veenstra, V. Veeraraghavan, G. Visser, J.-L. Vuilleumier, Q. Wang, J. Watkins, M. Weber, W. Wei, L. J. Wen, U. Wichoski, G. Wrede, S. X. Wu, W. H. Wu, Q. Xia, L. Yang, Y.-R. Yen, O. Zeldovich, X. Zhang, J. Zhao, and Y. Zhou
Subjects: Physics, Nuclear and High Energy Physics, Photomultiplier, Scintillation, Time projection chamber, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, Noble gas, chemistry.chemical_element, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Avalanche photodiode, 01 natural sciences, Optics, Silicon photomultiplier, Xenon, Nuclear Energy and Engineering, chemistry, Double beta decay, 0103 physical sciences, Electrical and Electronic Engineering, 010306 general physics, business
Abstract: Future tonne-scale liquefied noble gas detectors depend on efficient light detection in the VUV range. In the past years Silicon Photomultipliers (SiPMs) have emerged as a valid alternative to standard photomultiplier tubes or large area avalanche photodiodes. The next generation double beta decay experiment, nEXO, with a 5 tonne liquid xenon time projection chamber, will use SiPMs for detecting the $178\,\text{nm}$ xenon scintillation light, in order to achieve an energy resolution of $\sigma / Q_{\beta\beta} = 1\, \%$. This paper presents recent measurements of the VUV-HD generation SiPMs from Fondazione Bruno Kessler in two complementary setups. It includes measurements of the photon detection efficiency with gaseous xenon scintillation light in a vacuum setup and dark measurements in a dry nitrogen gas setup. We report improved photon detection efficiency at $175\,\text{nm}$ compared to previous generation devices, that would meet the criteria of nEXO. Furthermore, we present the projected nEXO detector light collection and energy resolution that could be achieved by using these SiPMs., Comment: 11 pages, 13 figures, 2 tables
Published: 2018
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19. Search for a Higgs boson decaying into two photons in e(+)e(-) interactions at root s=189 GeV

Author: M. Vivargent, D. Piccolo, Vladimir Andreev, R. Ramelli, C. C. Samuel Ting, D.W. Schmitz, P. de Jong, N. Shivarov, R. van Gulik, P. Extermann, Salvatore Mele, Christoph Schäfer, B. Z. Yang, H. Hofer, S. S. Gau, K. L. Tung, Peter Denes, Robert Clare, Lamberto Luminari, Paolo Bagnaia, W. G. Ma, Thomas Hebbeker, G. Ambrosi, M. Rescigno, A. Barczyk, M. Gataullin, T. Sztaricskai, Paul Lecoq, R. W. Kraemer, M. Napolitano, A. Oulianov, C. Palomares, P. Wienemann, Adrian Biland, Egidio Longo, V. Plyaskin, Pierre Lecomte, F. Pierella, Federico Cindolo, A. Stone, Georgi Sultanov, T. S. Dai, R. A. Khan, S. Pensotti, Valery Schegelsky, Antonino Zichichi, C. Dionisi, Nicola Cavallo, H. K. Park, D. Duchesneau, H. S. Chen, L. Servoli, R. Leiste, Christoph Paus, Dimitri Bourilkov, P. Spillantini, Pablo Garcia-Abia, Werner Lustermann, Charles Timmermans, M. Dierckxsens, S. C. Tonwar, H. Rykaczewski, Frank Filthaut, Giovanni Organtini, Alain Hervé, T. Paul, H. Wilkens, G. Castellini, M. Chemarin, A. Bay, Ren-Yuan Zhu, B. Petersen, Thomas Ferguson, A. Malinin, A. Bajo, Alexei Raspereza, M. T. Dova, G. S. Muanza, I. Vodopianov, E. Fiandrini, Igor Vorobiev, J. A. van Dalen, A. Engler, G. M. Chen, G. Forconi, M. Pohl, S. Vlachos, Z. F. Gong, Gyorgy Vesztergombi, Peter Raics, M. Capell, H. S. Fesefeldt, E. Pistolesi, Luca Malgeri, Carlo Civinini, G. Raven, L. Xia, Aaron Dominguez, Jean Fay, M. Aguilar-Benitez, O. Grimm, Felicitas Pauss, Herwig Schopper, M. Pedace, S. C. Blyth, Marco Meschini, J. Rodin, T. Niessen, S. Rosier-Lees, P. Le Coultre, M. Basile, An. Zalite, A. De Salvo, P. Bartalini, A. Krüger, J. G. Branson, Kajari Mazumdar, X. D. Cai, Alessandra Doria, A. Gurtu, S. Villa, P. Duinker, P. Levtchenko, Panos A Razis, Christopher George Tully, S. N. Ganguli, A. Degré, H. Postema, W. J. Burger, Michael Dittmar, M. N. Kienzle-Focacci, A. Seganti, Harvey B Newman, M. Musy, R. Barillère, Jozsef Toth, Claudio Luci, D. Pandoulas, F. C. Erné, Wolfgang Lohmann, H. Vogt, B. Bertucci, F. Anselmo, Nicanor Colino, A. Lebedev, D. Mangeol, D. Luckey, B. Musicar, Roberto Battiston, Gerjan Bobbink, B. Borgia, G. Schwering, A. Csilling, J. Ulbricht, Dong-Chul Son, C. Furetta, M. Lebeau, J.P. Martin, Simonetta Gentile, S. R. Hou, M. Wadhwa, A. Balandras, D. J. Schotanus, K. Freudenreich, B. Tellili, J. Berdugo, J. J. Blaising, Marco Pieri, J. Hirschfelder, Stefano Giagu, J. D. Swain, A. Hasan, Raffaello D'Alessandro, F. Cesaroni, A. Buijs, Leonardo Merola, E. J. Sanchez, Maurizio Biasini, Pierluigi Paolucci, Marta Felcini, Peter H. Fisher, A. Klimentov, L. Lugnier, W. Kittel, I. Clare, G. Cara Romeo, B. P. Roe, S. Reucroft, S. V. Baldew, D. O. Prokofiev, Francesco Becattini, L. Tauscher, X. L. Wang, S. Cucciarelli, M. Pauluzzi, G. Marian, Aleandro Nisati, F. Brochu, C. Maña, D. della Volpe, H. J. Lee, Marcella Diemoz, G. Landi, M. Fabre, Jasper Kirkby, M. A. Falagan, I. Vetlitsky, Giovanni Passaleva, Joseph Quartieri, E. Delmeire, U. K. Chaturvedi, T. Azemoon, M. Zöller, Mingming Yang, H. F. Chen, An.A. Vorobyov, A. Böhm, Simone Paoletti, Y. S. Lu, Riccardo Paramatti, A. Favara, D. Ren, Anna Katharina Kopp, Zheng Wang, H. J. Yang, R. Ofierzynski, P. G. Rancoita, Pàl Hidas, Zhenyu Zhang, A. J.M. Muijs, S. Bhattacharya, L. Baksay, F. Cotorobai, B. De La Cruz, A. Shvorob, R. Ranieri, S. Likhoded, A. Kunin, Marcos Cerrada, B. N. Jin, Manjit Kaur, G. Ruggiero, A. C. Weber, L. Z. Sun, O. Adriani, Z. Szillasi, Hafeez R Hoorani, S. Wynhoff, C-Q. Li, A. Rosca, V. K. Gupta, H. Nowak, G. Chiefari, D. Vicinanza, S. Shevchenko, J. H. Field, Imad Baptiste Laktineh, V. Koutsenko, Lucas Taylor, Francesca Cavallari, M. G. Alviggi, E. Valente, M. E. Sarakinos, F. Behner, Yu. Galaktionov, L. Bellucci, Z. A. Liu, A. Vorvolakos, F. DeNotaristefani, W. J. Metzger, B. Stoyanov, S. Schmidt-Kaerst, T. Angelescu, G. Mirabelli, W. Wallraff, J. Alcaraz, G. Y. Zhu, E. Shumilov, P. Déglon, P. Ladron de Guevara, G. Viertel, S. Banerjee, K. Lübelsmeyer, S. Saremi, J. Casaus, V. Shoutko, K. Sudhakar, Ya Han Hu, D. Haas, Manas Maity, Jeremy Mans, Tariq Aziz, Claudia Cecchi, M. von der Mey, P. Berges, Hans J. Vogel, A. Buffini, A. Mihul, J. B. Ye, G. Alemanni, J. K. Kim, F. L. Linde, C. G. Yang, J. Pothier, Yu. Zalite, M. Acciarri, Guo-Ming Chen, J. M. Le Goff, J. Yamamoto, N. Gheordanescu, W. T. Lin, S. Costantini, S. C. Yeh, J. A. Rubio, A. Chen, D. van Dierendonck, J. Salicio, Crisostomo Sciacca, B. Zimmermann, D. Kiss, Konrad Deiters, G. B. Mohanty, Alberto Aloisio, Ph. Lebrun, X. W. Tang, P. A. Piroué, M. W. Gruenewald, M. Chamizo, I. Josa-Mutuberria, M. Kräber, Dong-Hyun Kim, G. Zilizi, R. Berbeco, A. Arefiev, R. R. McNeil, G. Carlino, G. Holzner, K. Riles, F. Marzano, G. Coignet, W. Krenz, S. X. Wu, Inkyu Park, M. Steuer, M. A. Rahaman, D. Perret-Gallix, D. Prokofiev, Luisa Cifarelli, L. J. Gutay, U. Becker, I. Duran, F. J. Eppling, L. W. Jones, S. M. Ting, J.V. Allaby, S. Patricelli, D. Hatzifotiadou, Laszlo Boldizsar, L. Romero, S. Sarkar, M. Bourquin, G. J. Grenier, Joachim Mnich, P. Achard, H. Milcent, T. Moulik, A. M. Cartacci, A. C. König, D. P. Stickland, Y. H. Chang, Francesca Nessi-Tedaldi, J. D. Burger, T. Siedenburg, G. Rahal-Callot, N. Raja, D. Dufournaud, H. Suter, Ia Iashvili, Z. Z. Xu, C. H. Lin, V. Pojidaev, Y. Uchida, Minhong Wang, M. P. Sanders, B. L. Betev, Speranza Falciano, A. Straessner, Luca Lista, Sabine Riemann, H. Anderhub, Michele Guida, B. Smith, S. Braccini, R. de Asmundis, I. Fisk, H. El Mamouni, Oleg Fedin, Max Weber, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Achard, Pablo, Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Pohl, Martin, Acciarri, M., Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, L., Balandras, A., Baldew, S. V., Banerjee, S., Barczyk, A., Barillere, R., Bartalini, P., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J. G., Brochu, F., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Cai, X. D., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coignet, G., Colino, N., Costantini, S., Cotorobai, F., B. d., La, Csilling, A., Cucciarelli, S., Dai, T. S., Van, J. A., D'Alessandro, R., Asmundis, R. d., Deglon, P., Degre, A., Deiters, K., DELLA VOLPE, Domenico, Delmeire, E., Denes, P., Denotaristefani, F., Salvo, A. D., Diemoz, M., Dierckxsens, M., Dierendonck, D. v., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M. T., Duchesneau, D., Dufournaud, D., Duinker, P., Duran, I., Mamouni, H. E., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabre, M., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Fisk, I., Forconi, G., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gau, S. S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z. F., Grenier, G., Grimm, O., Gruenewald, M. W., Guida, M., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Hou, S. R., Hu, Y., Iashvili, I., Jin, B. N., Jones, L. W., Jong, P. d., Josa Mutuberria, I., Khan, R. A., Kaur, M., Kienzle Focacci, M. N., Kim, D., Kim, J. K., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., Koutsenko, V., Kraber, M., Kraemer, R. W., Krenz, W., Kruger, A., Kunin, A., P. L., De, Laktineh, I., Landi, G., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., J. M., Le, Leiste, R., Levtchenko, P., Li, C., Likhoded, S., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Lugnier, L., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mans, J., Marian, G., Martin, J. P., Marzano, F., Mazumdar, K., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Der, M. v., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G. B., Moulik, T., Muanza, G. S., A. J. M., Musicar, B., Musy, M., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Nowak, H., Ofierzynski, R., Organtini, G., Oulianov, A., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Paramatti, R., Park, H. K., Park, I. H., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Pieri, M., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Pothier, J., Prokofiev, D. O., Prokofiev, D., Quartieri, J., Rahal Callot, G., Rahaman, M. A., Raics, P., Raja, N., Ramelli, R., Rancoita, P. G., Ranieri, R., Raspereza, A., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Riemann, S., Riles, K., Rodin, J., Roe, B. P., Romero, L., Rosca, A., Rosier Lees, S., Rubio, J. A., Ruggiero, G., Rykaczewski, H., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Schafer, C., Schegelsky, V., Schmidt Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D. J., Schwering, G., Sciacca, Crisostomo, Seganti, A., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Stone, A., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Suter, H., Swain, J. D., Szillasi, Z., Sztaricskai, T., Tang, X. W., Tauscher, L., Taylor, L., Tellili, B., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, J., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., Vetlitsky, I., Vicinanza, D., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vodopianov, I., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X. L., Wang, Z. M., Weber, A., Weber, M., Wienemann, P., Wilkens, H., S. X., Wu, Wynhoff, S., Xia, L., Z. Z., Xu, Yamamoto, J., Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., J. B., Ye, Yeh, S. C., Zalite, A., Zalite, Y., Zhang, Z. P., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Zilizi, G., Zimmermann, B., and Zoller, M.
Subjects: COLLISIONS, Z boson, Nuclear and High Energy Physics, Particle physics, Photon, Higgs boson, L3 data collected at LEP, Electron–positron annihilation, STANDARD MODEL, 2 PHOTONS, FOS: Physical sciences, ddc:500.2, 01 natural sciences, 7. Clean energy, Lower limit, High Energy Physics - Experiment, Standard Model, W-PAIR PRODUCTION, Nuclear physics, BHABHA SCATTERING, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, MONTE-CARLO PROGRAM, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PARTICLES, TEVATRON, 010306 general physics, DETECTOR, Ciencias Exactas, L3 EXPERIMENT, Physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Física, Function (mathematics), Scalar boson, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search is performed for a Higgs boson produced in association with a Z boson and decaying into two photons, using the L3 data collected at LEP at a centre-of-mass energy of 189 GeV. All decay modes of the Z are considered. No signal is observed and limits on the branching fraction of the Higgs boson decay into two photons as a function of the Higgs mass are derived assuming a Standard Model production rate. A lower limit on the mass of a fermiophobic Higgs is set at 94.9 GeV at 95% confidence level., Facultad de Ciencias Exactas
Published: 2016

20. AN S-MATRIX ANALYSIS OF THE Z-RESONANCE

Author: D. McNally, R. Fabbretti, Stefan Kirsch, G. Viertel, F. J. Rodriguez, H. R. Gustafson, H. El Mamouni, S. Morganti, G. M. Bilei, D. Antreasyan, Andrea Contin, I. Bechtluft, F. Cesaroni, Luca Lista, J. Schwenke, S. Easo, An.A. Vorobyov, D. Fernandez, X. Y. Cui, M. Gruenewald, Qi An, P. Arce, V. Plyaskin, J. Y. Liao, S. Patricelli, L. Martinez-Laso, D. Goujon, J. M. Ma, Yanwen Liu, Q. Ye, P. Kapinos, O. Adriani, Egidio Longo, A. Kasser, Lucas Taylor, F. C. Erné, Roberto Castello, P. Duinker, C. Warner, A. Atamanchuk, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, Emilio Leonardi, Simonetta Gentile, Sabine Riemann, Vincenzo Innocente, L. Fredj, S. Pensotti, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Guofan Hu, Giovanni Organtini, K. N. Qureshi, S. Goldfarb, A. Klimentov, P. Schmitz, P. Vikas, G. Tsipolitis, Georgi Sultanov, T. S. Dai, R. A. Khan, V. R. Krastev, M. T. Dova, V. P. Andreev, O. Rind, M. Chemarin, R. Bock, G. M. Chen, A. Sopczak, U. K. Chaturvedi, Maurizio Biasini, A. Bay, Samuel C.C. Ting, Marta Felcini, M. Bosetti, T. E. Coan, J. G. Branson, Kenneth Francis Read, L. Djambazov, Y. Karyotakis, K. Freudenreich, L. Z. Sun, Y. S. Lu, H. O. Cohn, M. M. Ilyas, A. Gougas, D. Hauschildt, Davide Piccolo, Lamberto Luminari, M. Vivargent, M. Sachwitz, Francesco Becattini, X. R. Shi, Z. W. Yin, Felicitas Pauss, K. Sudhakar, G. Passaleva, Carlo Civinini, M. Maolinbay, G. Raven, M. Aguilar-Benitez, M. S. Sarakinos, L. J. Gutay, A. Degré, S. Chung, P.V.K.S. Baba, Attilio Santocchia, Jean Fay, M. Dhina, F. Cotorobai, X. T. Cui, S. Rosier-Lees, P. Le Coultre, K. Hangarter, J. K. Kim, R. Starosta, D. Luckey, Gy L. Bencze, Y. J. Pei, Reinhard W. Schulte, Konrad Deiters, Raffaello D'Alessandro, M. Möller, N. Zaitsev, U. Becker, D. Gele, Jianming Qian, T. Angelescu, G. Hu, H. Anderhub, A. Krivshich, J. B. Ye, I. Duran, L. Romero, C. Maña, I. C. Brock, Herwig Schopper, M. Rattaggi, H. Postema, M. White, J. H. Field, C. Y. Chien, C. Leggett, Z. Y. Lin, Alberto Aloisio, A. Ricker, H. Kuijten, R. Barillère, S. N. Ganguli, E. Gonzalez, Steven Ahlen, Leonardo Merola, Yu. Kamyshkov, J. Mnich, A. Kirkby, Carlos Willmott, F. J. Eppling, G. J. Zhou, L. W. Jones, D. S. Yan, S. M. Ting, Speranza Falciano, G. B. Mills, A. Lebedev, Dong-Chul Son, T. Kramer, K. Mazumdar, J. J. Blaising, H. F. Chen, M. Guanziroli, F. Ferroni, Marcella Diemoz, E. Dénes, R. Sehgal, A. Buytenhuijs, Giovanni Ambrosi, M. N. Kienzle-Focacci, M. MacDermott, R. Rosmalen, Stefano Giagu, H. T. Li, R. Leiste, Christoph Paus, T. Azemoon, A. Rubbia, X. W. Tang, S. X. Wu, C. G. Yang, W. Friebel, P. Zemp, K. S. Kumar, J. G. Xu, M. Fukushima, R. de Asmundis, Wt Lin, B. L. Betev, Y. Zeng, J. P. Martin, A. Tsaregorodtsev, Bolek Wyslouch, S. Wynhoff, A. Nippe, D. Duchesneau, M. Wadhwa, S. C. Tonwar, K. Y. Lee, Frank Filthaut, B. P. Roe, C. Wang, Thomas Ferguson, D. Z. Shen, Chenjie Gu, C. F. He, Alexander Malinin, B. Monteleoni, I. Sheer, P. A. Piroué, B. Zhou, Elisabetta Gallo, P. Marchesini, D. DiBitonto, Ph. Rosselet, M. Steuer, G. Forconi, Yuehong Xie, G. Chiefari, S. Shevchenko, M. A. Niaz, A. Bujak, Oliver Kornadt, M. Pohl, Mariagrazia Alviggi, B. C.C. van der Zwaan, C. Neyer, I. Vetlitsky, W. van Rossum, P. G. Rancoita, Pierluigi Paolucci, M. Gailloud, R. C. Ball, G. Sartorelli, X. L. Wang, F. Behner, T. Paul, Marcos Cerrada, Y. Mi, J. A. Bakken, Y. F. Wang, M. Sassowsky, J. Bao, E. Shumilov, V. Shoutko, B. C. Riemers, Axel König, F. Sticozzi, B. N. Jin, J. Weber, W. Y. Chen, Ren-Yuan Zhu, Luciano Barone, W. Kittel, T. J. Wenaus, Werner Lustermann, A. Pevsner, M. Lenti, Stefan Roth, A. Nadtochy, C. Spartiotis, J. M. Le Goff, M. Bourquin, K. Strauch, Andrea Baschirotto, Adrian Biland, Chenliang Wang, D. H. Wright, Ming Zeng, N. Gheordanescu, Z. M. Wang, A. A. Syed, P. Extermann, P. Lecomte, H. Nowak, I. Leedom, B. Z. Yang, M. Caria, M. Tonutti, Yu. Galaktionov, G. Schwering, M. Rescigno, D. Perret-Gallix, G. Terzi, G. S. Sanders, S. J. Fan, A. M. Cartacci, R. Raghavan, Laurent Vuilleumier, M. Röhner, P. G. Seiler, G. Fernandex, S. Reucroft, F. Wittgenstein, S. Shotkin, L. Ludovici, E. Drago, B.C. Stringfellow, H. Hofer, K. L. Tung, J. A. Rubio, F. Plasil, Mingshui Chen, A. Koulbardis, J. Alcaraz, J. S. Lee, G. F. Susinno, A. Arefiev, M. Yzerman, A. Gurtu, Els Koffeman, M. Fabre, M. Schneegans, D. M. Lee, Dimitri Bourilkov, L. Antonov, R. Morand, Z. L. Xue, W. Wallraff, H. A. Rizvi, N. Yunus, G. Carlino, A. Marin, A. Kunin, M. Pauluzzi, Jun Guo, H. R. Dimitrov, O. Fackler, H. J. Schreiber, S. Banerjee, A. Engler, V. Koutsenko, J. M. Salicio, N. E. Moulai, Hafeez R Hoorani, E. Fiandrini, Zp Zhang, Helmut Vogel, Howard A. Stone, V. K. Gupta, B. Lindemann, L. Urbán, M. Capell, D. Boutigny, J. C. Sens, R. T. Van de Walle, Y. G. Kim, G. Finocchiaro, V. Pojidaec, R. Mount, Marcel Merk, A. C. Weber, G. Gratta, M. T. Choi, Cheng Chen, A. Mihul, E. Brambilla, B. Hartmann, Tariq Aziz, A. Hasan, D. Ren, H. S. Fesefeldt, W. J. Metzger, S. Ro, R. Bizzarri, F. DeNotaristefani, Roberto Battiston, K. Riles, J. Perrier, Z. Z. Xu, J. Wenninger, F. Marzano, Y. H. Chang, I. Scott, George Alverson, Francesca Nessi-Tedaldi, J. S. Kapustinsky, R. Malik, J. D. Burger, W. J. Burger, J. Shukla, C. Zaccardelli, G. Coignet, W. Krenz, U. Vikas, Peter Denes, G. Sauvage, Z. D. Qi, J. T. He, Gerjan Bobbink, B. Borgia, S. Khokhar, T.R. McMahon, S. Müller, F. L. Linde, R. Weill, G. Rahal-Callot, Z. F. Gong, J. M. Lubbers, W. W. Kinnison, S. C. Yeh, J. Behrens, P. J. Li, Paolo Bagnaia, J. Ulbricht, David Stickland, P. Berges, Marco Meschini, Crisostomo Sciacca, P. Lebrun, R. Klöckner, D. Kirkby, Harvey B Newman, K. Hilgers, Xd Cai, Zhuoxiang Ren, E. Nagy, R. Becker, A. L. Anderson, D. J. Schotanus, J. M. You, Marco Pieri, K. Schultze, H. Suter, BT Bouwens, F. Marion, G. A. Yang, Igor Vorobiev, G. Mirabelli, D. Lanske, M. Hebert, Christopher George Tully, Guo-Ming Chen, Panos A Razis, V. Soulimov, J. F. Zhou, I. Clare, J. Busenitz, Wolfgang Lohmann, H. Vogt, U. Uwer, A. Chen, B. Bertucci, S. C. Kim, J. Salicio, Nicanor Colino, S. Schulte, K. Lübelsmeyer, Piero Spillantini, J. Tóth, Y. Mir, C. H. Ye, D. Pandoulas, T. Spickermann, Michael Dittmar, Bernard Ille, K. Janssen, Stéphane Jézéquel, J. D. Swain, P. McBride, A. Böhm, J. Berdugo, S. Lanzano, D.W. Schmitz, G. Pascale, G.G.G. Massaro, Claudio Luci, Robert Clare, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, I. Josa-Mutuberria, H. S. Chen, L. Servoli, Shu Li, G. Landi, M. L. Brooks, Simone Paoletti, Manjit Kaur, Daqiang Zhang, E. Valente, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Bechtluft, J., Becker, R., Becker, U., Behner, F., Behrens, J., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Cotorobai, F., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Finocchiaro, G., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gele, D., Gentile, S., Gheordanescu, N., Giagu, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Klockner, R., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Rodriguez, F. J., Roe, B. P., Rohner, M., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. C. C., Ting, S. M., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Warner, C., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zaitsev, N., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., B. C. C., and IHEF (IoP, FNWI)
Subjects: Z boson, Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, FERMION PAIR PRODUCTION, Electron–positron annihilation, QED CORRECTIONS, 01 natural sciences, Nuclear physics, ASYMMETRIES, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, S-matrix, Ansatz, Physics, Annihilation, 010308 nuclear & particles physics, Física, Polarization (waves), Helicity, S matrix, Z-PEAK, Amplitude, Z-LINE-SHAPE, High Energy Physics::Experiment, Particle Physics - Experiment, Lepton
Abstract: The S matrix ansatz is a rigorously model independent approach to describe the cross-sections and asymmetries in e+e- annihilation. Using the cross-sections and asymmetries measured with the L3 detector during the 1990 and 1991 running period, we determine the mass and the width of the Z boson, the contributions of the Z exchange and of the yZ interference. Including the polarization of the t lepton in the analysis, the leptonic helicity amplitudes of the scattering process are determined assuming lepton universality. The results are compared with other model independent ansatzes as realized in ZFITTER. A systematic bias of the Z mass due to the yZ interference term is detected, which leads to an underestimation of the error on mz for model independent determinations., Facultad de Ciencias Exactas
Published: 2016

21. Measurement of the W+W-gamma cross section and direct limits on anomalous quartic gauge boson couplings at LEP

Author: Yu. Galaktionov, F. Cesaroni, Peter H. Fisher, Egidio Longo, Lamberto Luminari, H. F. Chen, Riccardo Paramatti, A. Kunin, S. Pensotti, Valery Schegelsky, Antonino Zichichi, Hafeez R Hoorani, S. X. Wu, W. J. Metzger, E. Delmeire, H. Rykaczewski, J. Alcaraz, D. Haas, Giovanni Organtini, U. K. Chaturvedi, H. Wilkens, G. S. Muanza, Jean Fay, Maurizio Biasini, Marta Felcini, Y. S. Lu, Nicola Cavallo, H. K. Park, F. Pierella, M. Vivargent, D. Piccolo, Federico Cindolo, A. Buijs, Inkyu Park, H. El Mamouni, A. Shvorob, R. Ranieri, C. Dionisi, Francesco Becattini, Aleandro Nisati, Speranza Falciano, G. Castellini, A. Straessner, Pablo Garcia-Abia, Pierre Lecomte, G. Chiefari, S. Shevchenko, Joseph Quartieri, G. Forconi, H. Milcent, M. Pohl, Alain Hervé, A. Lebedev, Dong-Chul Son, M. Steuer, J. H. Field, L. Baksay, F. Cotorobai, P. G. Rancoita, T. Angelescu, Luca Lista, Z. F. Gong, S. C. Tonwar, Frank Filthaut, H. J. Yang, Werner Lustermann, Charles Timmermans, M. Dierckxsens, A. Malinin, B. Stoyanov, G. Ruggiero, B. N. Jin, H. Nowak, Roberto Battiston, Jozsef Toth, Claudio Luci, D. Pandoulas, J. J. Blaising, J. Hirschfelder, T. Moulik, Stefano Giagu, A. C. Weber, S. Schmidt-Kaerst, J. Casaus, A. Bay, A. Mihul, Carlo Civinini, G. Raven, L. Xia, G. Alemanni, R. Ofierzynski, D. Vicinanza, D. Prokofiev, S. Likhoded, F. Behner, Oleg Fedin, Gerjan Bobbink, Luisa Cifarelli, W. Kittel, Marco Pieri, Pierluigi Paolucci, C. C. Samuel Ting, M. A. Rahaman, D. Perret-Gallix, M. Aguilar-Benitez, Mariagrazia Alviggi, B. Borgia, D. P. Stickland, Y. H. Chang, J. Ulbricht, O. Grimm, Herwig Schopper, S. C. Yeh, S. Wynhoff, Jeremy Mans, Thomas Ferguson, Sabine Riemann, Alessandra Doria, G. Mirabelli, R. van Gulik, Igor Vorobiev, W. Wallraff, Max Weber, C. G. Yang, P. Extermann, Salvatore Mele, I. Vetlitsky, H. Postema, G. Ambrosi, L. Romero, S. Reucroft, B. Tellili, M. Acciarri, Guo-Ming Chen, R. Ramelli, Peter Raics, Vladimir Andreev, J. Pothier, Yu. Zalite, A. M. Cartacci, A. C. König, K. Lübelsmeyer, F. L. Linde, S. Banerjee, Christoph Schäfer, B. Z. Yang, H. Hofer, K. L. Tung, Dimitri Bourilkov, G. Marian, S. Sarkar, P. Levtchenko, Pàl Hidas, P. Wienemann, A. Barczyk, Georgi Sultanov, A. Chen, D. van Dierendonck, P. Spillantini, Kajari Mazumdar, I. Clare, S. Bhattacharya, Panos A Razis, X. D. Cai, T. Sztaricskai, M. Fabre, T. S. Dai, B. Zimmermann, Mingming Yang, R. A. Khan, An. Zalite, S. Patricelli, Raffaello D'Alessandro, J. Salicio, H. Anderhub, A. Buffini, Konrad Deiters, D.W. Schmitz, M. Bourquin, P. de Jong, N. Shivarov, B. Petersen, G. J. Grenier, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, C-Q. Li, V. K. Gupta, S. R. Hou, M. Wadhwa, D. Dufournaud, Leonardo Merola, D. J. Schotanus, D. Hatzifotiadou, Ren-Yuan Zhu, E. Fiandrini, Giovanni Passaleva, Joachim Mnich, P. Achard, W. J. Burger, G. B. Mohanty, Alberto Aloisio, Ph. Lebrun, M. Pedace, Adrian Biland, Michael Dittmar, R. Berbeco, Gyorgy Vesztergombi, Luca Malgeri, L. Z. Sun, Z. A. Liu, A. Vorvolakos, F. DeNotaristefani, M. N. Kienzle-Focacci, J. Allaby, A. Csilling, Robert Clare, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, L. Tauscher, T. Azemoon, M. Lebeau, A. Gurtu, Laszlo Boldizsar, L. J. Gutay, Michele Guida, B. Smith, S. Braccini, J. D. Swain, Z. Z. Xu, C. H. Lin, R. Leiste, Christoph Paus, P. Violini, A. De Salvo, P. Bartalini, K. Sudhakar, Simonetta Gentile, A. Balandras, M. Chemarin, S. Saremi, Francesca Nessi-Tedaldi, A. Arefiev, V. Pojidaev, J. Berdugo, Ya Han Hu, E. J. Sanchez, M. Napolitano, U. Becker, R. de Asmundis, I. Fisk, Marcos Cerrada, A. Seganti, I. Duran, A. Oulianov, C. Palomares, Harvey B Newman, M. Musy, Manas Maity, P. Berges, M. von der Mey, R. R. McNeil, I. Vodopianov, A. Engler, J. M. Le Goff, J. Yamamoto, N. Gheordanescu, G. Carlino, X. W. Tang, P. A. Piroué, M. Chamizo, Peter Denes, J. A. Rubio, D. Kiss, Tariq Aziz, Paolo Bagnaia, F. J. Eppling, L. W. Jones, D. Duchesneau, H. S. Chen, An.A. Vorobyov, J. B. Ye, G. M. Chen, L. Servoli, Aaron Dominguez, A. Hasan, M. Capell, Felicitas Pauss, J. D. Burger, T. Siedenburg, L. Bellucci, S. M. Ting, A. Böhm, M. Rescigno, G. Rahal-Callot, N. Raja, X. L. Wang, M. Pauluzzi, G. Holzner, S. Rosier-Lees, H. S. Fesefeldt, E. Pistolesi, K. Riles, O. Adriani, S. C. Blyth, Marco Meschini, P. Le Coultre, M. Basile, H. Suter, Ia Iashvili, F. Marzano, G. Coignet, W. Krenz, Imad Baptiste Laktineh, Lucas Taylor, D. Ren, Crisostomo Sciacca, D. Mangeol, Y. Uchida, Francesca Cavallari, D. Luckey, J.P. Martin, G. Y. Zhu, E. Shumilov, Minhong Wang, M. P. Sanders, B. L. Betev, V. Shoutko, Christopher George Tully, Dong-Hyun Kim, Claudia Cecchi, J. A. van Dalen, G. Zilizi, Z. Szillasi, Wolfgang Lohmann, H. Vogt, B. Bertucci, V. Koutsenko, G. Landi, Simone Paoletti, B. Musicar, F. Anselmo, Nicanor Colino, A. J.M. Muijs, Manjit Kaur, G. Cara Romeo, B. P. Roe, F. Brochu, D. della Volpe, J. G. Branson, H. J. Lee, Marcella Diemoz, S. Villa, S. N. Ganguli, A. Degré, E. Valente, R. Barillère, G. Viertel, Hans J. Vogel, W. T. Lin, S. Costantini, T. Paul, S. V. Baldew, D. O. Prokofiev, Jasper Kirkby, M. A. Falagan, M. Zöller, Anna Katharina Kopp, V. Plyaskin, S. Vlachos, Alexei Raspereza, M. T. Dova, J. Rodin, A. Krüger, T. Niessen, F. C. Erné, K. Freudenreich, S. S. Gau, M. Gataullin, A. Stone, P. Duinker, S. Cucciarelli, C. Maña, A. Klimentov, B. De La Cruz, P. Déglon, A. Favara, Zheng Wang, Zhenyu Zhang, A. Rosca, M. E. Sarakinos, P. Ladron de Guevara, A. Bajo, G. Schwering, C. Furetta, L. Lugnier, J. K. Kim, Acciarri, M., Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, L., Balandras, A., Baldew, S. V., Banerjee, S., Banerjee, S. W., Barczyk, A., Barillere, R., Bartalini, P., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J. G., Brochu, F., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Cai, X. D., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coignet, G., Colino, N., Costantini, S., Cotorobai, F., B. d., La, Csilling, A., Cucciarelli, S., Dai, T. S., Van, J. A., D'Alessandro, R., Asmundis, R. d., Deglon, P., Degre, A., Deiters, K., DELLA VOLPE, Domenico, Delmeire, E., Denes, P., Denotaristefani, F., Salvo, A. D., Diemoz, M., Dierckxsens, M., Dierendonck, D. v., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M. T., Duchesneau, D., Dufournaud, D., Duinker, P., Duran, I., Mamouni, H. E., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabre, M., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Fisk, I., Forconi, G., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gau, S. S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z. F., Grenier, G., Grimm, O., Gruenewald, M. W., Guida, M., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Hou, S. R., Hu, Y., Iashvili, I., Jin, B. N., Jones, L. W., Jong, P. d., Josa Mutuberria, I., Khan, R. A., Kaur, M., Kienzle Focacci, M. N., Kim, D., Kim, J. K., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., Koutsenko, V., Kraber, M., Kraemer, R. W., Krenz, W., Kruger, A., Kunin, A., P. L., De, Laktineh, I., Landi, G., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., J. M., Le, Leiste, R., Levtchenko, P., Li, C., Likhoded, S., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Lugnier, L., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mans, J., Marian, G., Martin, J. P., Marzano, F., Mazumdar, K., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Der, M. v., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G. B., Moulik, T., Muanza, G. S., A. J. M., Musicar, B., Musy, M., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Nowak, H., Ofierzynski, R., Organtini, G., Oulianov, A., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Paramatti, R., Park, H. K., Park, I. H., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Pieri, M., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Pothier, J., Prokofiev, D. O., Prokofiev, D., Quartieri, J., Rahal Callot, G., Rahaman, M. A., Raics, P., Raja, N., Ramelli, R., Rancoita, P. G., Ranieri, R., Raspereza, A., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Riemann, S., Riles, K., Rodin, J., Roe, B. P., Romero, L., Rosca, A., Rosier Lees, S., Rubio, J. A., Ruggiero, G., Rykaczewski, H., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Schafer, C., Schegelsky, V., Schmidt Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D. J., Schwering, G., Sciacca, Crisostomo, Seganti, A., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Stone, A., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Suter, H., Swain, J. D., Szillasi, Z., Sztaricskai, T., Tang, X. W., Tauscher, L., Taylor, L., Tellili, B., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, J., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., Vetlitsky, I., Vicinanza, D., Viertel, G., Villa, S., Violini, P., Vivargent, M., Vlachos, S., Vodopianov, I., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X. L., Wang, Z. M., Weber, A., Weber, M., Wienemann, P., Wilkens, H., S. X., Wu, Wynhoff, S., Xia, L., Z. Z., Xu, Yamamoto, J., Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., J. B., Ye, Yeh, S. C., Zalite, A., Zalite, Y., Zhang, Z. P., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Zilizi, G., Zimmermann, B., Zoller, M., Achard, Pablo, Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Pohl, Martin, and IHEF (IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Photon, PAIR PRODUCTION, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, ddc:500.2, 01 natural sciences, 7. Clean energy, Standard Model, High Energy Physics - Experiment, Nuclear physics, Cross section (physics), High Energy Physics - Experiment (hep-ex), MUON DETECTOR, Quartic function, 0103 physical sciences, MONTE-CARLO PROGRAM, CALORIMETER, 010306 general physics, Ciencias Exactas, L3 EXPERIMENT, Physics, Gauge boson, Luminosity (scattering theory), CONSTRUCTION, 010308 nuclear & particles physics, Física, LEP, COLLIDERS, L3 detector, SINGLE, MISSING ENERGY, High Energy Physics::Experiment
Abstract: The process eqeyaWqWyg is analysed using the data collected with the L3 detector at LEP at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.8 pby1 . Based on a sample of 42 selected WqWy candidates containing an isolated hard photon, the WqWyg cross section, defined within phase-space cuts, is measured to q y be: s WW s290"80"16 fb, consistent with the Standard Model expectation. Including the process e e anngg, limits g are derived on anomalous contributions to the Standard Model quartic vertices WqWygg and WqWyZg at 95% CL: y0.043 GeVy2-a rL2-0.043 GeVy2 , y0.08 GeVy2-a rL2-0.13 GeVy2 , y0.41 GeVy2-a rL2-0.37 GeVy2, Facultad de Ciencias Exactas
Published: 2016

22. QCD studies in e(+)e(-) annihilation from 30 GeV to 189 GeV

Author: M. Vivargent, D. Piccolo, Ren-Yuan Zhu, Luciano Barone, A. Barczyk, Adrian Biland, M. Pedace, C. Dionisi, Vladimir Andreev, S. C. Blyth, Marco Meschini, G. Landi, D. Ruschmeier, Christopher George Tully, Wolfgang Lohmann, H. Vogt, B. Bertucci, F. Anselmo, Simone Paoletti, Nicanor Colino, R. Leiste, Christoph Paus, S. X. Wu, A. Gurtu, P. G. Rancoita, Peter Denes, G. Viertel, Paolo Bagnaia, Pablo Garcia-Abia, F. Pierella, Federico Cindolo, S. C. Tonwar, Inkyu Park, A. Favara, H. Nowak, Frank Filthaut, Thomas Ferguson, Helmut Vogel, A. J.M. Muijs, M. N. Kienzle-Focacci, D. Vicinanza, Manjit Kaur, Alain Hervé, Lamberto Luminari, Peter H. Fisher, G. Forconi, Yu. Galaktionov, C-Q. Li, A. Hasan, V. K. Gupta, A. Csilling, Zheng Wang, Zhenyu Zhang, J. Alcaraz, Aleandro Nisati, W. Wallraff, Jozsef Toth, Claudio Luci, D. Pandoulas, Speranza Falciano, Peter Raics, A. Straessner, Luca Lista, S. Costantini, I. Vodopianov, A. Engler, M. Capell, R. Barillère, A. Rosca, M. E. Sarakinos, Joseph Quartieri, S. Banerjee, Kajari Mazumdar, M. Steuer, M. A. Rahaman, D. Perret-Gallix, Marco Pieri, H. S. Fesefeldt, E. Pistolesi, Pierre Lecomte, A. Buijs, H. El Mamouni, F. Di Lodovico, X. D. Cai, Jeremy Mans, A. Bay, Pierluigi Paolucci, Carlo Civinini, M. Rescigno, C. C. Samuel Ting, A. Arefiev, R. R. McNeil, G. Carlino, W. Kittel, F. DeNotaristefani, P. Marchesini, G. Marian, P. Ladron de Guevara, Werner Lustermann, Charles Timmermans, M. Dierckxsens, R. van Gulik, P. Extermann, Salvatore Mele, A. Malinin, Roberto Battiston, Tariq Aziz, Willis Lin, D. Prokofiev, M. Acciarri, Sabine Riemann, G. Raven, V. Brigljevic, Christoph Schäfer, B. Z. Yang, L. Xia, H. Hofer, Guo-Ming Chen, S. Reucroft, G. Ambrosi, K. L. Tung, Luisa Cifarelli, Gerjan Bobbink, B. Borgia, Giovanni Passaleva, P. Duinker, G. Ruggiero, A. Mihul, G. Alemanni, G. Holzner, B. N. Jin, J. Ulbricht, A. Chen, D. van Dierendonck, M. Aguilar-Benitez, O. Grimm, K. Riles, P. Wienemann, Georgi Sultanov, J. Salicio, T. S. Dai, A. C. Weber, Egidio Longo, R. A. Khan, A. M. Cartacci, Oleg Fedin, B. Tellili, F. Cesaroni, A. Lebedev, Ya Han Hu, J. K. Kim, Dong-Chul Son, M. Fabre, Mingming Yang, Manas Maity, Herwig Schopper, J. J. Blaising, J. Hirschfelder, Stefano Giagu, J.P. Martin, F. Marzano, G. Coignet, A. Klimentov, Max Weber, Crisostomo Sciacca, W. Krenz, P. Berges, G. Mirabelli, J.V. Allaby, S. Patricelli, I. Clare, H. Postema, Emilio Leonardi, S. V. Baldew, D. O. Prokofiev, E. Delmeire, U. K. Chaturvedi, M. Chemarin, K. Lübelsmeyer, D. Dufournaud, H. Anderhub, S. C. Yeh, D. Hatzifotiadou, D. Sciarrino, Y. S. Lu, G. M. Chen, Aaron Dominguez, Laszlo Boldizsar, K. Sudhakar, Riccardo Paramatti, Konrad Deiters, Nicola Cavallo, Z. Z. Xu, A. Shvorob, A. Oulianov, C. Palomares, C. H. Lin, Felicitas Pauss, G. B. Mohanty, A. Kunin, Alberto Aloisio, Michele Guida, B. Smith, H. K. Park, V. Pojidaev, Dong-Hyun Kim, L. Baksay, O. Adriani, F. Cotorobai, Jasper Kirkby, M. A. Falagan, M. von der Mey, J. H. Field, A. Bajo, S. Rosier-Lees, I. Vetlitsky, A. Buffini, J. B. Ye, Ph. Lebrun, R. Ramelli, G. Castellini, S. Braccini, Hafeez R Hoorani, G. Zilizi, Imad Baptiste Laktineh, Lucas Taylor, P. Le Coultre, M. Basile, B. Stoyanov, W. J. Burger, M. Zöller, U. Becker, D.W. Schmitz, Z. F. Gong, B. Musicar, T. Sztaricskai, M. G. Alviggi, M. W. Gruenewald, P. de Jong, N. Shivarov, S. Schmidt-Kaerst, G. Schwering, Michael Dittmar, Anna Katharina Kopp, S. S. Gau, X. W. Tang, I. Duran, M. Campanelli, R. de Asmundis, I. Fisk, T. Angelescu, L. J. Gutay, Y. Uchida, Robert Clare, D. Mangeol, Raffaello D'Alessandro, P. A. Piroué, W. J. Metzger, M. Chamizo, Kati Lassila-Perini, W. G. Ma, Thomas Hebbeker, V. Plyaskin, I. Josa-Mutuberria, M. Kräber, Z. A. Liu, A. Vorvolakos, C. Furetta, Paul Lecoq, R. W. Kraemer, D. Luckey, J. D. Swain, M. Napolitano, F. J. Eppling, L. W. Jones, M. Gataullin, J. Casaus, Minhong Wang, M. P. Sanders, J. A. van Dalen, L. Lugnier, D. Kiss, S. M. Ting, B. L. Betev, R. Berbeco, D. Haas, A. Stone, H. J. Lee, S. Saremi, D. Duchesneau, H. S. Chen, L. Servoli, Leonardo Merola, Alexei Raspereza, M. T. Dova, F. L. Linde, J. G. Branson, S. Villa, A. Böhm, An. Zalite, Marcella Diemoz, S. Pensotti, Valery Schegelsky, Antonino Zichichi, C. G. Yang, L. Tauscher, J. Pothier, Yu. Zalite, P. Molnar, J. M. Le Goff, J. Yamamoto, B. De La Cruz, H. Rykaczewski, T. Azemoon, Giovanni Organtini, N. Gheordanescu, S. N. Ganguli, A. Krüger, H. Wilkens, H. F. Chen, Maurizio Biasini, A. Degré, Marcos Cerrada, G. S. Muanza, J. A. Rubio, Axel König, P. Déglon, Marta Felcini, Jean Fay, Pàl Hidas, S. Bhattacharya, G. Chiefari, S. Shevchenko, L. Z. Sun, F. Behner, Francesco Becattini, L. Bellucci, Alessandra Doria, S. R. Hou, M. Wadhwa, D. J. Schotanus, H. J. Yang, S. Likhoded, S. Wynhoff, G. Cara Romeo, B. P. Roe, F. Brochu, D. della Volpe, H. Milcent, A. A. Vorobyov, M. Pohl, T. Moulik, Z. Szillasi, D. P. Stickland, Y. H. Chang, V. Koutsenko, Dimitri Bourilkov, L. Romero, P. Spillantini, S. Sarkar, B. Petersen, E. Fiandrini, Gyorgy Vesztergombi, Luca Malgeri, A. De Salvo, P. Bartalini, A. Seganti, Harvey B Newman, M. Musy, M. Bourquin, G. J. Grenier, Joachim Mnich, P. Achard, A. Robohm, Francesca Nessi-Tedaldi, J. D. Burger, T. Siedenburg, G. Rahal-Callot, N. Raja, H. Suter, Ia Iashvili, Francesca Cavallari, G. Y. Zhu, E. Shumilov, V. Shoutko, Claudia Cecchi, Igor Vorobiev, P. Levtchenko, Panos A Razis, Simonetta Gentile, A. Balandras, J. Berdugo, E. J. Sanchez, R. Faccini, X. L. Wang, M. Pauluzzi, D. Ren, F. C. Erné, K. Freudenreich, S. Cucciarelli, C. Maña, T. Paul, S. Vlachos, J. Rodin, T. Niessen, F. Ferroni, E. Valente, M. Lebeau, Achard, Pablo, Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Pohl, Martin, Sciarrino, Deborah, L3 (IHEF, IoP, FNWI), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Acciarri, M., Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., Baksay, L., Balandras, A., Baldew, S. V., Banerjee, S., Barczyk, A., Barillere, R., Barone, L., Bartalini, P., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J. G., Brigljevic, V., Brochu, F., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Cifarelli, L., Cindolo, F., Civinini, G., Clare, I., Clare, R., Coignet, G., Colino, N., Costantini, S., Cotorobai, F., B. d., La, Csilling, A., Cucciarelli, S., Dai, T. S., Van, J. A., D'Alessandro, R., Asmundis, R. d., Deglon, P., Degre, A., Deiters, K., DELLA VOLPE, Domenico, Delmeire, E., Denes, P., Denotaristefani, F., Salvo, A. D., Diemoz, M., Dierckxsens, M., Dierendonck, D. v., Lodovico, F. D., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M. T., Duchesneau, D., Dufournaud, D., Duinker, P., Duran, I., Mamouni, H. E., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabre, M., Faccini, R., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Fisk, I., Forconi, G., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gau, S. S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z. F., Grenier, G., Grimm, O., Gruenewald, M. W., Guida, M., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hasan, A., Hazifotiadou, D., Hebbeker, T., Herve, A., Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Hou, S. R., Hu, Y., Iashvili, I., Jin, B. N., Jones, L. W., Jong, P. d., Josa Mutuberria, I., Khan, R. A., Kaur, M., Kienzle Focacci, M. N., Kim, D., Kim, J. K., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., Koutsenko, V., Kraber, M., Kraemer, R. W., Krenz, W., Kruger, A., Kunin, A., P. L., De, Laktineh, I., Landi, G., Lassila Perini, K., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., J. M., Le, Leiste, R., Leonardi, E., Levtchenko, P., Li, C., Likhoded, S., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Lugnier, L., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mans, J., Marchesini, P., Marian, G., Martin, J. P., Marzano, F., Mazumdar, K., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Der, M. v., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G. B., Molnar, P., Moulik, T., Muanza, G. S., A. J. M., Musicar, B., Musy, M., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Nowak, H., Organtini, G., Oulianov, A., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Paramatti, R., Park, H. K., Park, I. H., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Perret Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Pieri, M., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Pothier, J., Prokofiev, D. O., Prokofiev, D., Quartieri, J., Rahal Callot, G., Rahaman, M. A., Raics, P., Raja, N., Ramelli, R., Rancoita, P. G., Raspereza, A., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Riemann, S., Riles, K., Robohm, A., Rodin, J., Roe, B. P., Romero, L., Rosca, A., Rosier Lees, S., Rubio, J. A., Ruggiero, G., Ruschmeier, D., Rykaczewski, H., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Schafer, C., Schegelsky, V., Schmidt Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D. J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Seganti, A., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Stone, A., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Suter, H., Swain, J. D., Szillasi, Z., Sztaricskai, T., Tang, X. W., Tauscher, L., Taylor, L., Tellili, B., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, J., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., Vetlitsky, I., Vicinanza, D., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vodopianov, I., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X. L., Wang, Z. M., Weber, A., Weber, M., Wienemann, P., Wilkens, H., S. X., Wu, Wynhoff, S., Xia, L., Z. Z., Xu, Yamamoto, J., Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., J. B., Ye, Yeh, S. C., Zalite, A., Zalite, Y., Zhang, Z. P., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Zilizi, G., Zoller, M., and Flores, Sylvie
Subjects: Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, Hadron, FOS: Physical sciences, ddc:500.2, EVENT SHAPE DISTRIBUTIONS, 01 natural sciences, 7. Clean energy, Power law, High Energy Physics - Experiment, CROSS-SECTIONS, Nuclear physics, High Energy Physics - Experiment (hep-ex), MONTE-CARLO, POWER CORRECTIONS, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ANGLE BHABHA SCATTERING, 010306 general physics, Ciencias Exactas, Ansatz, L3 EXPERIMENT, Quantum chromodynamics, Coupling constant, Physics, Annihilation, HADRONIC EVENTS, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, LEPTON PAIR PRODUCTION, structure of hadronic events, centre-of-mass energies, L3 detector, l3 collaboration, High Energy Physics::Experiment, Energy (signal processing), Particle Physics - Experiment, TO-LEADING ORDER
Abstract: We present results obtained from a study of the structure of hadronic events recorded by the L3 detector at various centre-of-mass energies. The distributions of event shape variables and the energy dependence of their mean values are measured from 30 GeV to 189 GeV and compared with various QCD models. The energy dependence of the moments of event shape variables is used to test a power law ansatz for the non-perturbative component. We obtain a universal value of Ž 2 the non-perturbative parameter a s 0.537 ± 0.073. From a comparison with resummed O(αs2)QCD calculations, we 0 s determine the strong coupling constant at each of the selected energies. The measurements demonstrate the running of αs as expected in QCD with a value of αs(mZ) = 0.1215 ± 0.0012 (exp) ± 0.0061 (th)., Facultad de Ciencias Exactas
Published: 2016

23. Search for extra dimensions in boson and fermion pair production in e(+)e(-) interactions at LEP

Author: F. C. Erné, Yu. Galaktionov, C-Q. Li, J. Alcaraz, V. K. Gupta, H. Milcent, F. DeNotaristefani, K. Freudenreich, M. Rescigno, R. Barillère, A. Mihul, T. Moulik, Egidio Longo, G. Alemanni, H. Anderhub, S. Cucciarelli, C. Maña, S. C. Yeh, Manas Maity, P. Berges, A. Barczyk, Valery Schegelsky, H. Rykaczewski, Giovanni Organtini, S. C. Blyth, H. Wilkens, Jean Fay, S. X. Wu, Nicolas Produit, Helmut Vogel, T. Angelescu, J. A. van Dalen, Michele Guida, B. Smith, S. Braccini, Pàl Hidas, S. Bhattacharya, Adrian Biland, G. Landi, A. Buijs, Marco Meschini, Dimitri Bourilkov, M. Steuer, L. Z. Sun, J. Casaus, P. Laurikainen, D. O. Prokofiev, Alessandra Doria, F. Muheim, P. Spillantini, B. Petersen, D. P. Stickland, F. Ziegler, Y. H. Chang, P. Marchesini, Roberto Battiston, V. Brigljevic, Peter Raics, C. G. Yang, J. Pothier, Raffaello D'Alessandro, Yu. Zalite, Maurizio Biasini, Jasper Kirkby, M. A. Falagan, M. Zöller, R. de Asmundis, A. Oulianov, I. Fisk, M. Lebeau, M. A. Rahaman, D. Perret-Gallix, C. Palomares, Ren-Yuan Zhu, Luciano Barone, Gyorgy Vesztergombi, Luca Malgeri, G. Schwering, I. Vodopianov, Marta Felcini, Gerjan Bobbink, B. Borgia, B. N. Jin, J. Ulbricht, Christopher George Tully, Kajari Mazumdar, X. D. Cai, Leonardo Merola, Peter H. Fisher, Francesco Becattini, Anna Katharina Kopp, L. Bellucci, A. Engler, Francesca Cavallari, J. Busenitz, A. Arefiev, C. Dionisi, F. Cindolo, A. De Salvo, M. Capell, L. Tauscher, K. Sudhakar, L. Romero, R. R. McNeil, Wolfgang Lohmann, H. Vogt, B. Bertucci, T. Azemoon, M. Pedace, T. van Rhee, C. Furetta, Pablo Garcia-Abia, Alain Hervé, G. Carlino, M. Wadhwa, W. Kittel, Y. D. Oh, D. J. Schotanus, A. Bay, R. van Gulik, P. Bartalini, Aleandro Nisati, Kati Lassila-Perini, H. S. Fesefeldt, E. Pistolesi, S. C. Kim, Lamberto Luminari, M. von der Mey, S. Sarkar, I. Clare, F. Anselmo, Nicanor Colino, A. Gurtu, T. Paul, V. Plyaskin, J. P. Martin, P. Extermann, Salvatore Mele, L. Lugnier, Carlo Civinini, P. Lecomte, Riccardo Paramatti, Christoph Schäfer, B. Z. Yang, H. Hofer, G. Raven, H. J. Yang, L. Xia, J. B. Ye, A. Kunin, Joseph Quartieri, K. L. Tung, A. Seganti, Harvey B Newman, M. Musy, Hafeez R Hoorani, Marcos Cerrada, S. Pensotti, M. Bourquin, G. Holzner, W. J. Metzger, Vladimir Andreev, D. Ruschmeier, An.A. Vorobyov, M. Aguilar-Benitez, H. El Mamouni, D. Haas, M. T. Dova, F. L. Linde, O. Grimm, F. Di Lodovico, G. Y. Zhu, J. Tóth, E. Shumilov, Herwig Schopper, A. Hasan, Axel König, R. Leiste, K. Riles, Christoph Paus, R. C. Ball, Joachim Mnich, D. H. Kim, F. Marzano, G. Coignet, V. Shoutko, O. Adriani, Imad Baptiste Laktineh, Lucas Taylor, P. Achard, H. Postema, A. Favara, S. Wynhoff, A. Lebedev, Dong-Chul Son, P. Molnar, Simone Paoletti, Marco Pieri, M. Vivargent, D. Piccolo, Dong-Hyun Kim, H. F. Chen, A. J.M. Muijs, Aaron Dominguez, M. G. Alviggi, Manjit Kaur, Felicitas Pauss, W. Krenz, G. Zilizi, B. Monteleoni, Z. A. Liu, G. Forconi, A. Vorvolakos, A. Robohm, Zheng Wang, J. J. 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Straessner, Luca Lista, Willis Lin, Sabine Riemann, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Acciarri, M., Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, B., Anderhub, H., Andreev, V. 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Subjects: Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, ENERGIES, QED CORRECTIONS, FOS: Physical sciences, 01 natural sciences, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, REALISTIC APPROACH, Ciencias Exactas, Boson, L3 EXPERIMENT, Physics, electroweak interaction, 010308 nuclear & particles physics, Electroweak interaction, High Energy Physics::Phenomenology, Graviton, Física, z boson, large electron positron collider, Extra dimensions, Pair production, Large Electron–Positron Collider, High Energy Physics::Experiment, Electroweak scale, Particle Physics - Experiment
Abstract: Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be of the same order as the electroweak scale. A sizeable interaction between gravitons and Standard Model particles is then predicted. Effects of these new interactions in boson and fermion pair production are searched for in the data sample collected at centre-of-mass energies above the Z pole by the L3 detector at LEP. In addition, the direct production of a graviton associated with a Z boson is investigated. No statistically significant hints for the existence of these effects are found and lower limits in excess of 1 TeV are derived on the scale of this new theory of gravity, Facultad de Ciencias Exactas
Published: 2016

24. SEARCH FOR NEUTRAL CHARMLESS B-DECAYS AT LEP

Author: S. Easo, Kati Lassila-Perini, D.W. Schmitz, G. Pascale, V. Plyaskin, Samuel C.C. Ting, J. Y. Zeng, N. Shivarov, Claudio Luci, M. Rescigno, M. T. Dova, G. Passaleva, M. W. Gruenewald, I. Josa-Mutuberria, J. Rodin, Robert Clare, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, M. T. Choi, Francesca Nessi-Tedaldi, F. C. Erné, P. Schmitz, Alexei Klimentov, S. Petrak, H. S. Chen, B. Lindemann, J. D. Burger, G. Rahal-Callot, H. El Mamouni, S. Pensotti, Valery Schegelsky, Antonino Zichichi, Alessandra Doria, Tariq Aziz, N. Scholz, S. R. Hou, M. Wadhwa, D. J. Schotanus, H. O. Cohn, Marcella Diemoz, M. Vivargent, L. Servoli, Igor Vorobiev, K. Freudenreich, C. Maña, I. C. Brock, T. Angelescu, E. Lieb, J. Casaus, Yu. Kamyshkov, Helmut Vogel, S. Mele, Kajari Mazumdar, Dai-Sik Kim, F. Di Lodovico, H. Rykaczewski, Giovanni Organtini, G. M. Bilei, A. Arefiev, Yu. Efremenko, Aa Vorobyov, A. Tsaregorodtsey, P. Bartalini, P. Levtchenko, Panos A Razis, F. Ferroni, P. Laurikainen, S. Müller, B. L. Betev, A. Lebedev, Dong-Chul Son, T. Kramer, R. Barillère, E. Brambilla, E. Valente, D. McNally, O. Toker, Y. Zeng, C. G. Yang, Xd Cai, J. J. Blaising, Stefano Giagu, K. Riles, G. Viertel, R. Fabbretti, C. Lapoint, S. Morganti, Y. Karyotakis, J. Berdugo, F. Marzano, Z. A. Liu, X. Y. Yao, Luca Lista, Mariagrazia Alviggi, G. Coignet, W. Krenz, M. Möller, J. G. Xu, H. F. Chen, M. Lenti, A. Buytenhuijs, Stefan Roth, G. Schwering, K. Schultze, H. Suter, G. F. Susinno, D. Goujon, Vincenzo Innocente, D. Fernandez, Juven Wang, I. Vetlitsky, J. Schwenke, S. Costantini, E. J. Sanchez, S. X. Wu, Marco Meschini, D. Kirkby, J. M. Le Goff, Crisostomo Sciacca, N. Gheordanescu, J. C. Pinto, Jasper Kirkby, J.V. Allaby, S. Patricelli, Sabine Riemann, R. Weill, F. Muheim, Roberto Battiston, Gerjan Bobbink, Dimitri Bourilkov, B. Borgia, S. S. Gau, M. Sassowsky, A. J.W. van Mil, H. De Boeck, Y. J. Pei, H. Kuijten, A. C. Weber, J. Busenitz, W. van Rossum, C. Burgos, Adrian Biland, G. Chiefari, S. Shevchenko, F. Behner, A. M. Cartacci, Andrea Baschirotto, Mingshui Chen, J. Gerald, R. Faccini, G. G.G. Massaro, P. G. Seiler, J. A. Rubio, M. Pauluzzi, M. N. Kienzle-Focacci, J. Ulbricht, R. Raghavan, D. DiBitonto, Ph. Rosselet, E. Fiandrini, Luca Malgeri, M. Steuer, F. J. Rodriguez, Laurent Vuilleumier, H. R. Gustafson, Joel Goldstein, P. Marchesini, Y. G. Kim, Attilio Santocchia, Jean Fay, D. Boutigny, Y. H. Chang, George Alverson, Roger Moore, Christopher George Tully, Marco Pieri, Yu. Galaktionov, G. Sauvage, J. Alcaraz, K. Banicz, An.A. Vorobyov, L. Fredj, A. Favara, Z. Z. Xu, G. Tsipolitis, D. Perret-Gallix, M. Schneegans, D. Ren, Y. Zhou, F. Cesaroni, M. Chamizo, Wolfgang Lohmann, J. Shukla, J. S. Kapustinsky, J. F. Zhou, V. Soulimov, B. De La Cruz, G. Hu, H. Vogt, G. Landi, B. Bertucci, V. Pojidaev, Simone Paoletti, O. Adriani, G. Mirabelli, Bryan R. Smith, S. C. Kim, Lucas Taylor, K. Sudhakar, B. Alpat, Emilio Leonardi, A. P. Colijn, Harvey B Newman, K. Hilgers, Nicanor Colino, L. J. Gutay, Francesca Cavallari, C. Leggett, Nicolas Produit, R. Bock, I. Clare, Suchandra Dutta, W. Lu, U. Becker, P. G. Rancoita, Manjit Kaur, A. Engler, M. Capell, J. B. Ye, Federico Cindolo, S. Mangla, K. Y. Lee, L. Baksay, F. Cotorobai, J. P. Martin, Georgi Sultanov, K. Lübelsmeyer, Piero Spillantini, Carlos Willmott, Speranza Falciano, G. Cara Romeo, B. P. Roe, I. Duran, G. Forconi, Gerard Fernandez, H. S. Fesefeldt, E. Pistolesi, G. Y. Zhu, E. Shumilov, Zheng Wang, S. C. Tonwar, W. C. van Hoek, V. Shoutko, T. S. Dai, J. C. Sens, Frank Filthaut, R. A. Khan, D. Antreasyan, B. C. Riemers, R. Leiste, Christoph Paus, H. Anderhub, Zhenyu Zhang, A. Adam, Maurizio Biasini, Jozsef Toth, Marta Felcini, A. Kunin, Thomas Ferguson, J. P. Ernenwein, P. Extermann, F. J. Eppling, G. J. Zhou, L. W. Jones, R. Völkert, C. Cecchi, B. N. Jin, H. Nowak, B. Schoeneich, P. Kapinos, Hafeez R Hoorani, Christoph Schäfer, B. Z. Yang, M. Tonutti, M. E. Sarakinos, H. Hofer, D. P. Stickland, P. Duinker, Simonetta Gentile, D. Pandoulas, B. Monteleoni, F. Sticozzi, S. Reucroft, J. M. Salicio, P. Ladron de Guevara, Andre Sopczak, W. J. Metzger, S. Goldfarb, Pierluigi Paolucci, H. Janssen, M. Gailloud, Kenneth Francis Read, Francesco Becattini, T. Spickermann, Michael Dittmar, S. M. Ting, Cheng Chen, A. Mihul, W. J. Burger, C. Zaccardelli, J. S. Lee, A. Gougas, J. T. He, Egidio Longo, Subir Sarkar, H. Tuchscherer, R. Morand, W. Wallraff, Peter Denes, F. L. Linde, R. Mount, Giovanni Ambrosi, L. Romero, Nicola Cavallo, J. D. Swain, P. de Jong, M. M. Ilyas, A. Buijs, Howard A. Stone, W. W. Kinnison, S. C. Yeh, F. Tonisch, A. Chan, E. Gonzalez, Paolo Bagnaia, A. Pevsner, V. P. Andreev, S. P. Ahlen, P. Zemp, Y. F. Wang, R. de Asmundis, Wt Lin, S. Banerjee, Zp Zhang, M. Bourquin, A. Böhm, G. Castellini, K. Strauch, Joachim Mnich, Lamberto Luminari, Raffaello D'Alessandro, A. Robohm, A. Bujak, Oliver Kornadt, M. Pohl, Z. F. Gong, S. Wynhoff, Leonardo Merola, L. Tauscher, C-Q. Li, V. K. Gupta, R. C. Ball, Pierre Lecomte, M. Chemarin, A. Kasser, Konrad Deiters, W. Kittel, T. Azemoon, T. Paul, Werner Lustermann, G. Gratta, S. Ro, R. Bizzarri, Gianpaolo Carlino, F. DeNotaristefani, E. Nagy, Marcos Cerrada, Y. Mi, Axel König, Luisa Cifarelli, G. M. Chen, A. Macchiolo, M. Fabre, T. E. Coan, J. G. Branson, Manas Maity, P. Berges, Davide Piccolo, S. N. Ganguli, Peter H. Fisher, Roberto Castello, Steve Nahn, A. Nippe, Alexander Malinin, A. Degré, X. L. Wang, M. Rattaggi, J. M. You, M. Caria, A. Koulbardis, An. Zalite, V. Koutsenko, O. Rind, Aaron Dominguez, Felicitas Pauss, S. Rosier-Lees, P. Le Coultre, M. Basile, J. K. Kim, D. Luckey, Gy L. Bencze, Reinhard W. Schulte, E. Dénes, D. Duchesneau, L. Z. Sun, A. Boucham, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, A. Bay, Carlo Civinini, M. Maolinbay, G. Raven, M. Aguilar-Benitez, Herwig Schopper, H. Postema, S. Röhner, F. Wittgenstein, L. Ludovici, E. Drago, R. Ostonen, A. Marin, L. Urbán, M. Lebeau, Ren-Yuan Zhu, Luciano Barone, A. Gurtu, Els Koffeman, V. Commichau, B. Hartmann, A. Hasan, I. Dorne, M. Redaelli, U. K. Chaturvedi, Y. S. Lu, J. H. Field, C. Y. Chien, A. Kirkby, B. Stoyanov, P. Lebrun, V. Brigljevic, M. Röhner, R. T. Van de Walle, M. Acciarri, Guo-Ming Chen, U. Uwer, A. Chen, D. van Dierendonck, J. Salicio, Alberto Aloisio, A. Ricker, X. W. Tang, P. A. Piroué, B. Zhou, B. C.C. van der Zwaan, L3 (IHEF, IoP, FNWI), Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Brambilla, E., Branson, J. G., Brigljevic, V., Brock, I. C., Buijs, A., Bujak, A., Burger, J. D., Burger, W. J., Burgos, C., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Romeo, G. C., Caria, M., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Castello, R., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chan, A., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Cifarelli, L., Cindolo, F., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colijn, A. P., Colino, N., Commichau, V., Constantini, S., Cotorobai, F., Delacruz, B., Dai, T. S., Dalessandro, R., Deasmundis, R., Deboeck, H., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dibitonto, D., Diemoz, M., Vandierendonck, D., Dilodovico, F., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Dutta, S., Easo, S., Efremenko, Y., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Ernenwein, J. P., Extermann, P., Fabbretti, R., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Gailloud, M., Galaktionov, Y., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hartmann, B., Hasan, A., J. T., He, Hebbeker, T., Herve, A., Hilgers, K., Vanhoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ilyas, M. M., Innocente, V., Janssen, H., Jin, B. N., Jones, L. W., Dejong, P., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzlefocacci, M. N., Kim, D., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kittel, W., Klimentov, A., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, J. S., Lee, K. Y., Leggett, C., Legoff, J. M., Leiste, R., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lenti, M., Leonardi, E., Lindemann, B., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macchiolo, A., Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcnally, D., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., A. J. W., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Moore, R., Morand, R., Morganti, S., Mount, R., Muller, S., Muheim, F., Nagy, E., Nahn, S., Napolitano, Marco, Nessitedaldi, F., Newman, H., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Petrak, S., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Ro, S., Robohm, A., Rodin, J., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosselet, P., Vanrossum, W., Roth, S., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schoeneich, B., Scholz, N., Schopper, H., Schotanus, D. J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Seiler, P. G., Sens, J. C., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Son, D., Sopczak, A., Soulimov, V., Smith, B., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Stoyanov, B., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Tang, X. W., Tauscher, L., Taylor, L., S. C. C., Ting, S. M., Toker, O., Tonisch, F., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tuchscherer, H., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vivargent, M., Volkert, R., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yao, X. Y., J. B., Ye, Yeh, S. C., You, J. M., Zaccardelli, C., Zalite, A., Zemp, P., Zeng, J. Y., Zeng, Y., Zhang, Z., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhou, Y., Zhu, G. Y., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Higgs boson, L3 experiment, Hadron, Física, large electron positron collider, MESONS, 01 natural sciences, CP-VIOLATION, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, Large Electron–Positron Collider, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Ciencias Exactas, L3 EXPERIMENT
Abstract: A search for rare charmless decays of B0d and B0s mesons has been performed in the exclusive channels B0d(s) →ηη0, B0d(s) →ηπ0 and B0d(s) →π0π0. The data sample consisted of three million hadronic Z decays collected by the L3 experiment at LEP from 1991 through 1994. No candidate event has been observed and the following upper limits at 90% confidence level on the branching ratios have been set: Br(B0d→ηη) −4, Br(B0s →ηη) < 1.5 x 10−3, Br(B0d→ηπ0) < 2.5 x 10−4, Br(B0s→ηπ0) < 1.0 x 10−3, Br(B0d→π0π0) < 6.0 x 10−5, Br(B0s→π0π0) < 2.1 x 10−4. These are the first experimental limits on Bd0→ηη and on the Bs0 neutral charmless modes., Facultad de Ciencias Exactas
Published: 2016

25. Sensitivity and discovery potential of the proposed nEXO experiment to neutrinoless double beta decay

Author: J. L. Vuilleumier, B. Mong, M. Wagenpfeil, J. Dalmasson, A. Piepke, J. Todd, Y. Y. Ding, M. Heffner, Yuehe Lin, John L. Orrell, E. Raguzin, X.L. Sun, J. B. Zhao, C. T. Overman, R. Krücken, D. Qiu, Z. Li, Giorgio Gratta, A. Burenkov, M. Hasan, Arun Kumar Soma, L. J. Kaufman, R. DeVoe, S. J. Daugherty, Samuele Sangiorgio, M. Hughes, K. S. Kumar, V. Veeraraghavan, Y. Lan, Wei Wei, Petr Vogel, Rejean Fontaine, J. Daughhetee, A. Craycraft, U. Wichoski, Ethan Brown, F. Bourque, M. J. Jewell, M. Coon, D. Harris, Yu-Guang Zhou, T. Ziegler, T. Tolba, G. St-Hilaire, T. Tsang, Qun-Yao Wang, T. Stiegler, M. Chiu, J. P. Brodsky, David Moore, F. Retiere, Y. Ito, J. Zettlemoyer, Douglas H Beck, M. Oriunno, Zhijun Ning, S. Johnston, O. Zeldovich, G. Visser, A. Karelin, J. Hößl, A. Pocar, R. Tsang, T. Didberidze, S. Kravitz, Guofu Cao, T. N. Johnson, J. Schneider, P. Hufschmidt, E. V. Hansen, Y-R Yen, David A. Sinclair, F. Vachon, Ryan Killick, David Leonard, K. Murray, Liang Yang, R. J. Newby, Thomas Koffas, A. Jamil, D. Fudenberg, W. M. Fairbank, Gisela Anton, M. Côté, P. C. Rowson, T. Daniels, K. Graham, G. S. Ortega, B. T. Cleveland, M. J. Dolinski, V.N. Stekhanov, K. Odgers, Angelo Dragone, A. House, S. Rescia, A. Kuchenkov, W. Cree, Jean-Francois Pratte, Veljko Radeka, T. Rossignol, S. Feyzbakhsh, R. Saldanha, S. Delaquis, T. Brunner, W. R. Cen, Serge A. Charlebois, C. Licciardi, G. S. Li, R. Gornea, K. Skarpaas, G. Wrede, I. J. Arnquist, M. Tarka, Wei Wu, X. S. Jiang, A. Der Mesrobian-Kabakian, C. Chambers, A.C. Odian, G. Giacomini, A. Schubert, S. Parent, J. Farine, V. Belov, A. Robinson, L. Cao, F. Nolet, L. J. Wen, Marc Weber, S. X. Wu, Lorenzo Fabris, J. B. Albert, R. MacLellan, Thilo Michel, P. S. Barbeau, Jens Dilling, Xuan Zhang, I. Badhrees, I. Ostrovskiy, O. Njoya, A. Iverson, Shu Li, S. Schmidt, T. Rao, N. Roy, and E. W. Hoppe
Subjects: Physics, Time projection chamber, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Active medium, Detector, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, 7. Clean energy, 3. Good health, Nuclear physics, Homogeneous, 0103 physical sciences, Sensitivity (control systems), Nuclear Experiment (nucl-ex), 010306 general physics, Enriched Xenon Observatory, Nuclear Experiment, Order of magnitude
Abstract: The next-generation Enriched Xenon Observatory (nEXO) is a proposed experiment to search for neutrinoless double beta ($0\nu\beta\beta$) decay in $^{136}$Xe with a target half-life sensitivity of approximately $10^{28}$ years using $5\times10^3$ kg of isotopically enriched liquid-xenon in a time projection chamber. This improvement of two orders of magnitude in sensitivity over current limits is obtained by a significant increase of the $^{136}$Xe mass, the monolithic and homogeneous configuration of the active medium, and the multi-parameter measurements of the interactions enabled by the time projection chamber. The detector concept and anticipated performance are presented based upon demonstrated realizable background rates., Comment: v2 as published
Published: 2017

26. Characterization of an Ionization Readout Tile for nEXO

Author: T. Stiegler, Douglas H Beck, R. Tsang, K. Murray, Gisela Anton, D. Fudenberg, R. Saldanha, Angelo Dragone, J. Todd, Y. Y. Ding, R. Krücken, Jochen M. Schneider, Y-R Yen, Jean-Francois Pratte, P. C. Rowson, K. Skarpaas, S. Kravitz, E. V. Hansen, Liang Yang, S. Feyzbakhsh, A. House, V. Veeraraghavan, R. J. Newby, A. Jamil, Ethan Brown, M. Chiu, W. Cree, A. Burenkov, S. Delaquis, M. Hughes, M. Côté, T. Daniels, Gabriele Giacomini, A. Pocar, Maulik R. Patel, M. Hasan, J. Farine, A. Karelin, R. DeVoe, Jens Dilling, Arun Kumar Soma, Zhijun Ning, T. Tolba, M. J. Jewell, I. Badhrees, David Moore, A. Robinson, T. Didberidze, B. Mong, M. Wagenpfeil, J. Dalmasson, I. J. Arnquist, Xiaoshan Jiang, Yuehe Lin, Veljko Radeka, A. Piepke, Gerrit Wrede, V.N. Stekhanov, J. B. Zhao, S. Parent, U. Wichoski, M. Oriunno, W. R. Cen, C. Chambers, R. Gornea, M. Heffner, A. Odian, D. Qiu, M. Tarka, S. Johnston, T. Ziegler, I. Ostrovskiy, John L. Orrell, E. Raguzin, Z. Li, T. Brunner, S. Rescia, S. X. Wu, Eric W. Hoppe, M. Coon, S. J. Daugherty, A. Schubert, O. Zeldovich, Cory T. Overman, G. Visser, Wei Wu, O. Njoya, A. Iverson, Triveni Rao, Y. Lan, Thomas Tsang, Shu Li, S. Schmidt, J. Daughhetee, Qian Wang, David Leonard, G. S. Ortega, Thomas Koffas, W. M. Fairbank, Samuele Sangiorgio, Giorgio Gratta, J. L. Vuilleumier, B. T. Cleveland, K. Odgers, Serge A. Charlebois, R. MacLellan, Yumei Zhou, Wei Wei, K. S. Kumar, Rejean Fontaine, A. Kuchenkov, P. Hufschmidt, David A. Sinclair, F. Bourque, J. P. Brodsky, G. St-Hilaire, D. Harris, Y. Ito, L. J. Kaufman, M. J. Dolinski, A. Craycraft, Liangjian Wen, Guofu Cao, G. S. Li, Thilo Michel, T. Rossignol, Xiaoyang Sun, C. Licciardi, A. Der Mesrobian-Kabakian, N. Roy, L. Cao, F. Nolet, F. Vachon, Marc Weber, F. Retière, J. B. Albert, X. Zhang, J. Hößl, P. S. Barbeau, V. A. Belov, and Lorenzo Fabris
Subjects: Physics - Instrumentation and Detectors, Materials science, Physics::Instrumentation and Detectors, chemistry.chemical_element, FOS: Physical sciences, STRIPS, 01 natural sciences, law.invention, Optics, Xenon, law, Ionization, 0103 physical sciences, Wafer, 010306 general physics, Instrumentation, Mathematical Physics, Time projection chamber, 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Anode, chemistry, visual_art, visual_art.visual_art_medium, Tile, business
Abstract: A new design for the anode of a time projection chamber, consisting of a charge-detecting "tile", is investigated for use in large scale liquid xenon detectors. The tile is produced by depositing 60 orthogonal metal charge-collecting strips, 3~mm wide, on a 10~\si{\cm} $\times$ 10~\si{\cm} fused-silica wafer. These charge tiles may be employed by large detectors, such as the proposed tonne-scale nEXO experiment to search for neutrinoless double-beta decay. Modular by design, an array of tiles can cover a sizable area. The width of each strip is small compared to the size of the tile, so a Frisch grid is not required. A grid-less, tiled anode design is beneficial for an experiment such as nEXO, where a wire tensioning support structure and Frisch grid might contribute radioactive backgrounds and would have to be designed to accommodate cycling to cryogenic temperatures. The segmented anode also reduces some degeneracies in signal reconstruction that arise in large-area crossed-wire time projection chambers. A prototype tile was tested in a cell containing liquid xenon. Very good agreement is achieved between the measured ionization spectrum of a $^{207}$Bi source and simulations that include the microphysics of recombination in xenon and a detailed modeling of the electrostatic field of the detector. An energy resolution $\sigma/E$=5.5\% is observed at 570~\si{keV}, comparable to the best intrinsic ionization-only resolution reported in literature for liquid xenon at 936~V/\si{cm}., Comment: 18 pages, 13 figures, as published
Published: 2017
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27. Measurement of the topological branching fractions of the $\tau$ lepton at LEP

Author: S. Sushkov, Yu. Galaktionov, G. Schwering, K. Freudenreich, J. Alcaraz, A. Barczyk, B. Tellili, C. Furetta, Adrian Biland, G. Forconi, M. Pohl, C. Rosenbleck, Lamberto Luminari, A. Mihul, G. Alemanni, Jozsef Toth, S. Cucciarelli, D. Pandoulas, I. Vodopianov, J.V. Allaby, S. Patricelli, A. Engler, Luca Lista, S. Wynhoff, Tariq Aziz, M. Capell, D. Hatzifotiadou, M. Biglietti, C. Maña, H. S. Fesefeldt, E. Pistolesi, S. C. Yeh, G. Grenier, J. K. Kim, Laszlo Boldizsar, G. Baksay, Sabine Riemann, Pierre Lecomte, J. Mnich, S. Reucroft, J. Debreczeni, D. Käfer, Samuel C.C. Ting, Z. F. Gong, B. Musicar, Francesca Nessi-Tedaldi, Werner Lustermann, Charles Timmermans, M. Dierckxsens, C. Palomares, R. Barillère, A. Malinin, L. J. Gutay, S. V. Baldew, D. O. Prokofiev, Crisostomo Sciacca, Jasper Kirkby, M. A. Falagan, U. Becker, M. Zöller, V. Plyaskin, A. Favara, Leonardo Merola, R. Leiste, J. D. Burger, T. Siedenburg, G. Rahal-Callot, Alexei Raspereza, Dimitri Bourilkov, P. Spillantini, J. Zhao, L. Tauscher, A. Krüger, G. Passaleva, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, Marcella Diemoz, Felicitas Pauss, N. Raja, T. Azemoon, Zhenghao Xu, A. Lebedev, B. Zimmermann, M. Musy, Y. Uchida, Dong-Chul Son, J. J. Blaising, J. Hirschfelder, Stefano Giagu, Zheng Wang, W. Kittel, B. Petersen, R. Berbeco, Konrad Deiters, F. J. Eppling, L. W. Jones, Pierluigi Paolucci, S. M. Ting, E. Fiandrini, S. Rosier-Lees, H. Suter, Marcos Cerrada, G. B. Mohanty, Alberto Aloisio, T. Paul, Gyorgy Vesztergombi, Mariagrazia Alviggi, Minhong Wang, M. P. Sanders, B. L. Betev, K. Sudhakar, A. Ewers, G. Mirabelli, H.F. Chen, A. Arefiev, H. Milcent, I. Vetlitsky, P. Le Coultre, M. Basile, R. R. McNeil, D. Teyssier, Alessandra Doria, Maurizio Biasini, S. Vlachos, Mingming Yang, B. Echenard, A. De Salvo, X. W. Tang, H. L. Zhuang, Marta Felcini, A. M. Cartacci, Arno Straessner, K. Lübelsmeyer, A. C. König, P. Lebrun, P. A. Piroué, P. Ladron de Guevara, G. Holzner, M. Chamizo, P. Bartalini, K. Riles, T. Niessen, D. P. Stickland, F. Ziegler, Y. H. Chang, Jeremy Mans, F. Marzano, G. Coignet, Egidio Longo, W. Krenz, M. N. Kienzle-Focacci, B. P. Roe, Francesco Becattini, D. Mangeol, Harvey B Newman, P. G. Rancoita, C. H. Lin, W. J. Burger, B. N. Jin, S. X. Wu, Roberto Battiston, V. Pojidaev, M. Lebeau, Michael Dittmar, A. Eline, D. Prokofiev, Luisa Cifarelli, M. Kopal, H. Nowak, D. Vicinanza, L. Romero, An.A. Vorobyov, S. Nagy, M. Steuer, D. Luckey, Gerjan Bobbink, B. Borgia, M. T. Dova, J. Ulbricht, M. Vivargent, S. R. Hou, M. Wadhwa, W. Wallraff, M. Bourquin, Subir Sarkar, D. J. Schotanus, P. Raics, R. T. Van de Walle, M. A. Rahaman, D. Perret-Gallix, S. Banerjee, Guo-Ming Chen, M. Gataullin, F. L. Linde, O. Adriani, F. Brochu, P. Achard, Imad Baptiste Laktineh, Lucas Taylor, G. Cara Romeo, D. della Volpe, Roger Moore, H. J. Yang, I. Clare, J. Casaus, P. Lacentre, G. Ruggiero, A. Chen, D. van Dierendonck, A. Böhm, R. Ofierzynski, P. Wienemann, Georgi Sultanov, C. G. Yang, T. S. Dai, J. Pothier, B. Roux, E. Valente, M. Rescigno, Yu. Zalite, H. El Mamouni, S. Likhoded, R. Ranieri, J. Salicio, G. Viertel, B. De La Cruz, J. G. Branson, Hans J. Vogel, E. Delmeire, Y. S. Lu, M. Chemarin, N. Cavallo, G. M. Chen, J. A. van Dalen, Davide Piccolo, W. T. Lin, S. Costantini, A. Shvorob, S. N. Ganguli, P. Déglon, Peter H. Fisher, Speranza Falciano, Sw. Banerjee, V. Veszpremi, Zhidong Zhang, J. H. Field, A. Degré, C. Li, W.G. Ma, W. C. Fisher, Marc M Baarmand, Aleandro Nisati, B. Stoyanov, S. Schmidt-Kaerst, Ren-Yuan Zhu, P. Duinker, G. Chiefari, Simonetta Gentile, S. Shevchenko, F. Behner, Joseph Quartieri, A. Klimentov, Bz Yang, M. Pedace, Oleg Fedin, An. Zalite, Max Weber, A. Gurtu, V. K. Gupta, Z. Szillasi, H. Anderhub, Gianpaolo Carlino, V. Koutsenko, Michele Guida, F. DeNotaristefani, R. van Gulik, P. Extermann, Salvatore Mele, Christoph Schäfer, H. Hofer, Ya Han Hu, K. L. Tung, S. Braccini, P. Berges, R. de Asmundis, I. Fisk, L. Baksay, Z. A. Liu, S. Saremi, Stefan Roth, J. M. Le Goff, J. Yamamoto, J. A. Rubio, N. Batalova, Kajari Mazumdar, X. D. Cai, Francesca Cavallari, John Swain, J. P. Martin, Alexander S. Sakharov, G. Y. Zhu, E. Shumilov, V. Shoutko, Claudia Cecchi, S. Villa, Igor Vorobiev, P. Levtchenko, Panos A Razis, J. Berdugo, E. J. Sanchez, M. Pauluzzi, H.J. Lee, D. Ren, A. P. Colijn, Riccardo Paramatti, A. Kunin, W. J. Metzger, F. Pierella, D. Haas, Federico Cindolo, S. Pensotti, Valery Schegelsky, Antonino Zichichi, H. Rykaczewski, Giovanni Organtini, S. C. Tonwar, Frank Filthaut, H. Wilkens, Thomas Ferguson, Jean Fay, G. Landi, A. J.M. Muijs, Vladimir Andreev, Manjit Kaur, A. Buijs, Peter Denes, Paolo Bagnaia, R. Ramelli, D.W. Schmitz, S. C. Blyth, Marco Meschini, P. de Jong, N. Shivarov, Claudio Luci, Robert Clare, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, P. Tarjan, D. Duchesneau, H. S. Chen, L. Servoli, G.S. Muanza, Christopher George Tully, Wolfgang Lohmann, H. Vogt, C. Paus, B. Bertucci, G. Zilizi, L. Malgeri, F. Anselmo, Nicanor Colino, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, A. Bay, L. Xia, M. Aguilar-Benitez, O. Grimm, Herwig Schopper, H. Postema, Xl Wang, L. Z. Sun, L. Bellucci, A. Rosca, A. Bajo, Achard, Pablo, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Echenard, Bertrand, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Malgeri, Luca, Natale, Sonia, Pohl, Martin, L3 (IHEF, IoP, FNWI), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Anderhub, H., Andreev, V. P., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Baarmand, M., Bagnaia, P., Bajo, A., Baksay, G., Baksay, L., Baldew, S. V., Banerjee, S., Barczyk, A., Barillere, R., Bartalini, P., Basile, M., Batalova, N., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berbeco, R., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biglietti, M., Biland, A., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J. G., Brochu, F., Buijs, A., Burger, J. D., Burger, W. J., Cai, X. D., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A., Casaus, J., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Chamizo, M., Chang, Y. H., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Cifarelli, L., Cindolo, F., I, C., Clare, R., Coignet, G., Colijn, A. P., Colino, N., Costantini, S., B. d., La, Cucciarelli, S., Dai, T. S., Van, J. A., Asmundis, R. d., Deglon, P., Debreczeni, J., Degre, A., Deiters, K., DELLA VOLPE, Domenico, Delmeire, E., Denes, P., Denotaristefani, F., Salvo, A. D., Diemoz, M., Dierckxsens, M., Dierendonck, D. v., Dionisi, C., Dittmar, M., Doria, A., Dova, M. T., Duchesneau, D., Duinker, P., Echenard, B., Eline, A., Mamouni, H. E., Engler, A., Eppling, F. J., Ewers, A., Extermann, P., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Fisher, W., I, F., Forconi, G., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gentile, S., Giagu, S., Gong, Z. F., Grenier, G., Grimm, O., Gruenewald, M. W., Guida, M., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hatzifotiadou, D., Hebbeker, T., Herve, A., Hirschfelder, J., Hofer, H., Holzner, G., Sr, H., Hu, Y., Jin, B. N., Jones, L. W., Jong, P. d., I, J., Kafer, D., Kaur, M., Kienzle Focacci, M. N., Kim, J. K., Kirkby, J., Kittel, W., Klimentov, A., Konig, A. C., Kopal, M., V, K., Kraber, M., Kraemer, R. W., Krenz, W., Kruger, A., Kunin, A., Lacentre, P., P. L., De, I, L., Landi, G., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., J. M., Le, Leiste, R., Levtchenko, P., Li, C., Likhoded, S., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Luminari, L., Lustermann, W., W. G., Ma, Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Mans, J., Martin, J. P., Marzano, F., Mazumdar, K., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G. B., Moore, R., Muanza, G. S., A. J. M., Musicar, B., Musy, M., Nagy, S., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Nowak, H., Ofierzynski, R., Organtini, G., Palomares, C., Pandoulas, D., Paolucci, P., Paramatti, R., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Piroue, P. A., Pistolesi, E., V, P., Pohl, M., Postema, H., Pothier, J., Prokofiev, D. O., Prokofiev, D., Quartieri, J., Rahal Callot, G., Rahaman, M. A., Raics, P., Raja, N., Ramelli, R., Rancoita, P. G., Ranieri, R., Raspereza, A., Razis, R., Ren, D., Rescigno, M., Reucroft, S., Riemann, S., Riles, K., Roe, B. P., Romero, L., Rosca, A., Rosier Lees, S., Roth, S., Rosenbleck, C., Roux, B., Rubio, J. A., Ruggiero, G., Rykaczewski, H., Sakharov, A., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M. P., Schafer, C., V, S., Schmidt Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D. J., Schwering, G., Sciacca, Crisostomo, Servoli, L., Shevchenko, S., Shivarov, N., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Spillantini, P., Steuer, M., Stickland, D. P., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Sushkov, S., Suter, H., Swain, J. D., Szillasi, Z., Tang, X. W., Tarjan, P., Tauscher, L., Taylor, L., Tellili, B., Teyssier, D., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, T., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Van, R. T., V, V., Vesztergombi, G., I, V., Vicinanza, D., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vogel, H., Vogt, H., Vorobyov, A. A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X. L., Wang, Z. M., Weber, M., Wienemann, P., Wilkens, H., S. X., Wu, Wynhoff, S., Xia, L., Z. Z., Xu, Yamamoto, J., Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., Yeh, S. C., Zalite, A., Zalite, Y., Zhang, Z. P., Zhao, J., Zhu, G. Y., Zhu, R. Y., Zhuang, H. L., Zichichi, A., Ziegler, F., Zilizi, G., Zimmermann, B., and Zoller, M.
Subjects: COLLISIONS, Particle physics, Nuclear and High Energy Physics, PAIR PRODUCTION, Electron–positron annihilation, L3 detector at LEP, FOS: Physical sciences, ddc:500.2, 01 natural sciences, CROSS-SECTIONS, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ANGLE BHABHA SCATTERING, 010306 general physics, DETECTOR, Ciencias Exactas, L3 EXPERIMENT, Physics, CONSTRUCTION, 010308 nuclear & particles physics, Física, topological branching fractions, RATIOS, Z-PEAK, τ lepton, Particle Physics - Experiment, Lepton
Abstract: Using data collected with the L3 detector at LEP from 1992 to 1995 on the Z peak, we determine the branching fractions of the τ lepton into one, three and five charged particles to be: B(τ → (1-prong)) = 85.274 ± 0.105 ± 0.073%, B(τ → (3-prong)) = 14.556 ± 0.105 ± 0.076%, B(τ → (5-prong)) = 0.170 ± 0.022 ± 0.026%. The first uncertainties are statistical and the second systematic. The accuracy of these measurements alone is similar to that of the current world average., Facultad de Ciencias Exactas
Published: 2001

28. Hard-photon production and tests of QED at LEP

Author: H. Milcent, T. Moulik, Dimitri Bourilkov, G. Landi, R. Y. Zhu, G. Chiefari, B. Petersen, E. Valente, G. Cara Romeo, A. Lebedev, A. Straessner, Dong-Chul Son, S. Pensotti, Luca Lista, Gyorgy Vesztergombi, Luca Malgeri, J. J. Blaising, J. Hirschfelder, James G Branson, Vladimir Andreev, Stefano Giagu, D. Ruschmeier, J.P. Martin, Willis Lin, A. De Salvo, P. Duinker, A. Klimentov, G. Ambrosi, K. Freudenreich, F. Brochu, D. della Volpe, A. A. Vorobyov, A.M. Cartacci, E. Fiandrini, S. Costantini, Riccardo Paramatti, A. Kunin, Igor Vorobiev, M. von der Mey, Gianpaolo Carlino, P. Bartalini, Mariagrazia Alviggi, S. Riemann, M. Pohl, B. L. Betev, Francesca Nessi-Tedaldi, F. Di Lodovico, M. Campanelli, A. Zichichi, P. Levtchenko, Helmut Vogel, T. Siedenburg, G. Rahal-Callot, Panos A Razis, Y. H. Chang, H. J. Lee, Marcella Diemoz, N. Raja, F. Ferroni, L. Cifarelli, Peter Raics, Oleg Fedin, G. Schwering, Max Weber, P. Marchesini, F. J. Eppling, H. Suter, Ia Iashvili, C. Furetta, D. Kiss, V. Brigljevic, Simone Paoletti, H. Anderhub, M. Fabre, J. B. Ye, Kajari Mazumdar, Y. Uchida, Mingming Yang, A. Gurtu, A. Seganti, Harvey B Newman, M. Musy, A. J.M. Muijs, W. J. Metzger, I. Vetlitsky, L. Lugnier, R. Barillère, P. Wienemann, Georgi Sultanov, Michele Guida, Manjit Kaur, B. Smith, V. Plyaskin, M. Capell, F. Pierella, A. Favara, Federico Cindolo, A. Biland, M. Acciarri, A. Balandras, S. Braccini, S. Sarkar, Raffaello D'Alessandro, Zheng Wang, L. W. Jones, Pàl Hidas, S. Bhattacharya, M. Napolitano, Z. P. Zhang, A. Rosca, C. Sciacca, F. DeNotaristefani, U. Becker, Hafeez R Hoorani, M. E. Sarakinos, O. Adriani, Imad Baptiste Laktineh, Lucas Taylor, Minhong Wang, M. P. Sanders, S. Gentile, M. Vivargent, A. Barczyk, E. J. Sanchez, Guo-Ming Chen, B. P. Roe, Alessandra Doria, M. Bourquin, R. van Gulik, D. Schmitz, A. Button, Dong-Hyun Kim, Manas Maity, L. Z. Sun, Pierluigi Paolucci, Z. Szillasi, P. G. Rancoita, D. van Dierendonck, J. Salicio, G. Forconi, P. Ladron de Guevara, G. Zilizi, M. Chemarin, P. Extermann, W. Kittel, Salvatore Mele, P. Lecomte, G. J. Grenier, I. Fisk, N. Cavallo, Frank Filthaut, R. de Asmundis, G. M. Chen, Z. A. Liu, A. Vorvolakos, Thomas Ferguson, R. Ramelli, Joachim Mnich, P. Berges, P. Bagnaia, G. Pascale, V. K. Gupta, M. Rescigno, P. Achard, T. Angelescu, M. N. Kienzle-Focacci, Christoph Schäfer, B. Z. Yang, K. Sudhakar, G. Marian, P. de Jong, N. Shivarov, Claudio Luci, Robert Clare, S. S. Gau, J. A. Rubio, Giovanni Passaleva, M. Gataullin, L. Tauscher, T. Azemoon, X. W. Tang, D. Dufournaud, A. Csilling, A. Stone, D. O. Prokofiev, A. Robohm, Suresh C Tonwar, Jasper Kirkby, M. A. Falagan, X. D. Cai, I. H. Park, H. Nowak, D. J. Schotanus, R. Faccini, B. De La Cruz, S. Saremi, Thomas Hebbeker, Paul Lecoq, D. Vicinanza, Y. S. Lu, A. Shvorob, I. Vodopianov, A. Engler, A. Chen, H. El Mamouni, J. Casaus, Marco Meschini, C. H. Lin, V. Pojidaev, David Stickland, J. M. Le Goff, M. Zöller, L. Bellucci, N. Gheordanescu, M. Lebeau, P. Déglon, D. Duchesneau, H. S. Chen, F. C. Erné, D. Haas, L. Servoli, Aleandro Nisati, E. Longo, Anna Katharina Kopp, V. Koutsenko, Marcos Cerrada, Maurizio Biasini, Marta Felcini, J. D. Burger, Francesco Becattini, D. Ren, A. Weber, H. S. Fesefeldt, E. Pistolesi, S. R. Hou, M. Wadhwa, F. Cesaroni, Joseph Quartieri, F. L. Linde, Valery Schegelsky, Axel König, Kati Lassila-Perini, C. Li, J. Pothier, B. Stoyanov, Yu. Zalite, C. Maña, S. Schmidt-Kaerst, R. W. Kraemer, Y. D. Oh, U. K. Chaturvedi, S. Reucroft, S. Banerjee, S. Villa, Christopher George Tully, Davide Piccolo, P. Denes, Emilio Leonardi, H. Rykaczewski, Giovanni Organtini, P. Spillantini, H. Wilkens, H. J. Yang, Luciano Barone, A. P. Colijn, Yu. Galaktionov, Wolfgang Lohmann, H. Vogt, B. Bertucci, S. C. Kim, A. Degré, S. Cucciarelli, S. Falciano, P. H. Fisher, J. Allaby, D. Sciarrino, Francesca Cavallari, J. Tóth, R. A. Khan, Alexei Raspereza, S. C. Blyth, G. S. Muanza, Konrad Deiters, M. Pedace, T. van Rhee, Aaron Dominguez, S. Likhoded, F. Anselmo, Nicanor Colino, P. Molnar, Felicitas Pauss, G. B. Mohanty, J. Alcaraz, L. Baksay, F. Cotorobai, Jean Fay, S. N. Ganguli, Alberto Aloisio, F. Muheim, K. Riles, A. Krüger, P. Lebrun, S. Wynhoff, H. K. Park, S. Rosier-Lees, Pablo Garcia-Abia, P. Le Coultre, G. Y. Zhu, M. Basile, E. Shumilov, Nicolas Produit, Alain Hervé, A. Oulianov, S. X. Wu, C. Palomares, C. G. Yang, A. Bay, J. H. Field, G. Castellini, J. Berdugo, D. H. Kim, V. Shoutko, T. Paul, Carlo Civinini, Luciano Romero, Z. F. Gong, G. Raven, A. Hasan, Z. Z. Xu, G. Mirabelli, Claudia Cecchi, S. Shevchenko, S. W. Banerjee, L. Xia, G. G.G. Massaro, D. Mangeol, W.G. Ma, M. Aguilar-Benitez, O. Grimm, A. Buijs, S. Vlachos, F. Behner, D. Luckey, Herwig Schopper, H. Postema, P. A. Piroué, G. Viertel, M. Steuer, H. Hofer, T. Sztaricskai, L. J. Gutay, L. Merola, J. Rodin, T. Niessen, M. Chamizo, A. Mihul, G. Alemanni, Tariq Aziz, An. Zalite, K. L. Tung, W. Wallraff, M. A. Rahaman, D. Perret-Gallix, J. A. van Dalen, S. C. Yeh, A. Arefiev, R. R. McNeil, F. Marzano, Marco Pieri, G. Holzner, W. Krenz, Samuel C.C. Ting, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, B. Cozzoni, Roberto Battiston, B. Borgia, M. T. Dova, B. N. Jin, J. Ulbricht, I. Clare, R. Leiste, Christoph Paus, B. Monteleoni, Howard A. Stone, T.S. Dai, D. Prokofiev, M. Pauluzzi, I. Duran, D. Hatzifotiadou, Laszlo Boldizsar, L. Fredj, S. Patricelli, S. M. Ting, R. C. Ball, Werner Lustermann, Charles Timmermans, A. Malinin, G. J. Bobbink, H.F. Chen, L. Luminari, K. Lübelsmeyer, A. Buffini, D. Pandoulas, W. J. Burger, C. Dionisi, Michael Dittmar, J. D. Swain, A. Böhm, G. Coignet, J. K. Kim, L3 (IHEF, IoP, FNWI), Flores, Sylvie, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Acciarri, M., Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Balandras, A., Ball, R. C., Banerjee, S., Barczyk, A., Barillere, R., Barone, L., Bartalini, P., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Bellucci, L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Braccini, S., Branson, J. G., V, B., Brochu, F., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Button, A., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chiefari, Giovanni, Cifarelli, L., Cindolo, F., Civinini, C., I, C., Clare, R., Coignet, G., Colijn, A. P., Colino, N., Costantini, S., Cotorobai, F., Cozzoni, B., B. d., La, Csilling, A., Cucciarelli, S., Dai, T. S., Van, J. A., D'Alessandro, R., Asmundis, R. d., Deglon, P., Degre, A., Deiters, K., DELLA VOLPE, Domenico, Denes, P., Denotaristefani, F., Salvo, A. D., Diemoz, M., Dierendonck, D. v., Lodovico, F. D., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M. T., Duchesneau, D., Dufournaud, D., Duinker, P., I, D., Mamouni, H. E., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabre, M., Faccini, R., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., I, F., Forconi, G., Fredj, L., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gau, S. S., Gentile, S., Gheordanescu, N., Giagu, S., Gong, Z. F., Grenier, G., Grimm, O., Gruenewald, M. W., Guida, M., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Hidas, P., Hirschfelder, J., Hofer, H., Holzner, G., Hoorani, H., Sr, H., I, I., Jin, B. N., Jones, L. W., Jong, P. d., I, J., Khan, R. A., Kaur, M., Kienzle Focacci, M. N., Kim, D., Kim, D. H., Kim, J. K., Kim, S. C., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., V, K., Kraber, M., Kraemer, R. W., Krenz, W., Kruger, A., Kunin, A., P. L., De, I, L., Landi, G., Lassila Perini, K., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., J. M., Le, Leiste, R., Leonardi, E., Levtchenko, P., Li, C., Likhoded, S., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Lugnier, L., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Marchesini, P., Marian, G., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcneil, R. R., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Der, M. v., Mihul, A., Milcent, H., Mirabelli, G., Mnich, J., Mohanty, G. B., Molnar, P., Monteleoni, B., Moulik, T., Muanza, G. S., Muheim, F., A. J. M., Musy, M., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nisati, A., Nowak, H., Y. D., Oh, Organtini, G., Oulianov, A., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Paramatti, R., Park, H. K., Park, I. H., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pedace, M., Pensotti, S., Perret Gallix, D., Petersen, B., Piccolo, D., Pierella, F., Pieri, M., Piroue, P. A., Pistolesi, E., V, P., Pohl, M., Postema, H., Pothier, J., Produit, N., Prokofiev, D. O., Prokofiev, D., Quartieri, J., Rahal Callot, G., Rahaman, M. A., Raics, P., Raja, N., Ramelli, R., Rancoita, P. G., Raspereza, A., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Rhee, T. v., Riemann, S., Riles, K., Robohm, A., Rodin, J., Roe, B. P., Romero, L., Rosca, A., Rosier Lees, S., Rubio, J. A., Ruschmeier, D., Rykaczewski, H., Saremi, S., Sarkar, S., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Schafer, C., V, S., Schmidt Kaerst, S., Schmitz, D., Schopper, H., Schotanus, D. J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Seganti, A., Servoli, L., Shevchenko, S., Shivarov, N., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Stone, A., Stone, H., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Suter, H., Swain, J. D., Szillasi, Z., Sztaricskai, T., Tang, X. W., Tauscher, L., Taylor, L., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, J., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., I, V., Vicinanza, D., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vogel, H., Vogt, H., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, M., Wang, X. L., Wang, Z. M., Weber, A., Weber, M., Wienemann, P., Wilkens, H., S. X., Wu, Wynhoff, S., Xia, L., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., J. B., Ye, Yeh, S. C., Zalite, A., Zalite, Y., Zhang, Z. P., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Zilizi, G., Zoller, M., Achard, Pablo, Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Muheim, Franz, Pohl, Martin, Produit, Nicolas, and Sciarrino, Deborah
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], ENERGIES, FOS: Physical sciences, ddc:500.2, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), MONTE-CARLO, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, DETECTOR, L3 EXPERIMENT, Physics, GAMMA-GAMMA%28GAMMA%29%22">E(+)E(-)->GAMMA-GAMMA(GAMMA), 010308 nuclear & particles physics, COUPLINGS, Excited state, Production (computer science), Atomic physics, Particle Physics - Experiment
Abstract: The total and differential cross sections of the process $\epem \ra n \gamma$ with $n \geq 2$ are measuredusing data collected by the L3 experiment at centre--of--mass energies of $\sqrt{s}=183$ and $189$\GeV{}. The results are in agreement with the Standard Model expectations. Limits are set on deviationsfrom QED, contact interaction cut-off parameters and masses of excited electrons. The total and differential cross sections of the process e + e − → nγ with n ≥2 are measured using data collected by the L3 experiment at centre-of-mass energies of s =183 and 189 GeV . The results are in agreement with the Standard Model expectations. Limits are set on deviations from QED, contact interaction cut-off parameters and masses of excited electrons. The total and differential cross sections of the process e+e- -> n gamma with n >= 2 are measured using data collected by the L3 experiment at centre-of-mass energies of \sqrt{s}=183 and 189 GeV. The results are in agreement with the Standard Model expectations. Limits are set on deviations from QED, contact interaction cut-off parameters and masses of excited electrons.
Published: 2000

29. Study of silicon photomultiplier performance in external electric fields

Author: A. Alamre, T. Stiegler, John L. Orrell, T. Daniels, M. Côté, J. Schneider, Z. Li, N. Roy, L. Cao, F. Nolet, M. Oriunno, M. Hughes, Ethan Brown, J. Farine, D. Fairbank, D. Qiu, Y. Ito, M. Coon, Thilo Michel, Qing Xia, V.N. Stekhanov, C. T. Overman, M. Chiu, G. S. Ortega, A. Karelin, A. Pocar, D. S. Leonard, T. Tolba, Venkatesh Veeraraghavan, J. Hößl, Marc Weber, S. Kravitz, Yuehe Lin, David Moore, Y. Lan, R. DeVoe, Serge A. Charlebois, K. Murray, A. Craycraft, J. Echevers, Gisela Anton, M. Wagenpfeil, J. Dalmasson, T. Brunner, E. Raguzin, O. Nusair, Jens Dilling, R. Krücken, Z. Ning, Samuele Sangiorgio, Wei Wei, K. S. Kumar, S. X. Wu, Gerard Visser, P. S. Barbeau, D. A. Harris, A. Der Mesrobian-Kabakian, J. B. Zhao, A. Larson, D. Fudenberg, O. Zeldovich, A. Piepke, I. Badhrees, Angelo Dragone, M. J. Jewell, F. Vachon, Rejean Fontaine, Jean-Francois Pratte, R. Saldanha, L. Darroch, D. Kodroff, B. Veenstra, F. Bourque, S. Parent, S. Rescia, Lorenzo Fabris, T. Bhatta, A. Odian, S. J. Daugherty, J. Watkins, I. Ostrovskiy, R. MacLellan, G. Giacomini, J. P. Brodsky, T. I. Totev, Stefan Schmidt, R. Tsang, O. Njoya, A. Iverson, Triveni Rao, K. Skarpaas Viii, T. Rossignol, G. Wrede, B. Mong, Thomas Tsang, Shu Li, P. Fierlinger, W. R. Cen, Liangjian Wen, Guofu Cao, L. J. Kaufman, A. E. Robinson, M. Tarka, J. B. Albert, Qian Wang, G. Li, S. Feyzbakhsh, Giorgio Gratta, Yumei Zhou, M. J. Dolinski, P. Hufschmidt, David A. Sinclair, B. T. Cleveland, K. Odgers, A. Kuchenkov, U. Wichoski, G. St-Hilaire, C. Licciardi, V. Radeka, T. Ziegler, Thomas Koffas, W. M. Fairbank, Xilei Sun, I. J. Arnquist, Wei Wu, R.J. Newby, P. C. Rowson, A. House, W. Cree, S. Delaquis, Xiaoshan Jiang, C. Chambers, G. Gallina, P. Lv, J. Todd, Y. Y. Ding, E. V. Hansen, Liang Yang, A. Jamil, Douglas H Beck, A. Burenkov, Y-R Yen, J. L. Vuilleumier, Arun Kumar Soma, C. Jessiman, M. K. Moe, Eric W. Hoppe, M. Heffner, J. Daughhetee, R. Gornea, F. Retière, and V. A. Belov
Subjects: 010302 applied physics, Physics - Instrumentation and Detectors, Materials science, 010308 nuclear & particles physics, business.industry, FOS: Physical sciences, Observable, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, 7. Clean energy, Silicon photomultiplier, Electric field, 0103 physical sciences, Optoelectronics, business, Instrumentation, Photon detection, Mathematical Physics
Abstract: We report on the performance of silicon photomultiplier (SiPM) light sensors operating in electric field strength up to 30 kV/cm and at a temperature of 149K, relative to their performance in the absence of an external electric field. The SiPM devices used in this study show stable gain, photon detection efficiency, and rates of correlated pulses, when exposed to external fields, within the estimated uncertainties. No observable physical damage to the bulk or surface of the devices was caused by the exposure., Comment: 16 pages, 12 figures, 2 tables and two conferences (INPC2016 and TIPP2017)
Published: 2018

30. Voltage controlled Bi-mode resistive switching effects in MnO2based devices

Author: H W Li, Dongdong Li, P Hu, S X Wu, Gaili Wang, and Shuwei Li
Subjects: 010302 applied physics, Materials science, Acoustics and Ultrasonics, business.industry, Mode (statistics), 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Resistive switching, 0103 physical sciences, Optoelectronics, 0210 nano-technology, business, Voltage
Published: 2017

31. Upper limit on the lifetime difference of shortlived and longlived B0(S) mesons

Author: C. Lapoint, A. Straessner, H. El Mamouni, Luca Lista, Juven Wang, F. Di Lodovico, J. M. You, M. Rescigno, Mingshui Chen, J. Gerald, Z. A. Liu, R. Faccini, A. Buijs, A. Vorvolakos, Willis Lin, D. Migani, X. L. Wang, G. G.G. Massaro, Sabine Riemann, Oleg Fedin, J. G. Xu, S. C. Blyth, M. Pauluzzi, M. Vivargent, D. Piccolo, Peter H. Fisher, J. Busenitz, Marco Meschini, D. Kirkby, Stefan Roth, A. Pevsner, D. Ren, A. Lavorato, J. Shukla, V. Koutsenko, Christopher George Tully, S. S. Gau, E. Drago, M. Gataullin, L. Romero, H. Anderhub, Aleandro Nisati, R. Leiste, Christoph Paus, Wolfgang Lohmann, H. Vogt, A. M. Cartacci, A. P. Colijn, J. M. Le Goff, M. N. Kienzle-Focacci, V. K. Gupta, Joseph Quartieri, B. Bertucci, S. C. Kim, F. Anselmo, Nicanor Colino, W. J. Burger, A. C. König, M. Bourquin, S. Pensotti, Valery Schegelsky, Antonino Zichichi, A. Lebedev, Dong-Chul Son, H. Rykaczewski, N. Gheordanescu, Giovanni Organtini, S. Braccini, D. Ruschmeier, B. Monteleoni, T. Angelescu, J. Casaus, O. Rind, Michael Dittmar, A. Csilling, J. J. Blaising, Alessandra Doria, F. DeNotaristefani, G. Landi, Joel Goldstein, J. Hirschfelder, P. Rosselet, F. Muheim, F. Behner, Stefano Giagu, G. S. Muanza, F. Ferroni, Y. Zeng, Jean Fay, P. Laurikainen, Igor Vorobiev, Joachim Mnich, P. Levtchenko, Panos A Razis, D. Boutigny, M. Schneegans, Bryan R. Smith, K. Sudhakar, Peter Denes, J. D. Swain, J. A. Rubio, N. Scholz, D. Peach, Nicolas Produit, R. Barillère, G. Ambrosi, P. L. de Guevara, Roger Moore, Y. J. Pei, Simone Paoletti, A. J.M. Muijs, Manjit Kaur, C. Dionisi, S. R. Hou, M. Wadhwa, D. J. Schotanus, Paolo Bagnaia, Dimitri Bourilkov, Manas Maity, P. Berges, Steve Nahn, G. Cara Romeo, B. P. Roe, S. P. Ahlen, P. Zemp, R. de Asmundis, I. Fisk, D. Kim, A. Favara, I. H. Park, Z. Z. Xu, C. H. Lin, V. Pojidaev, S. Reucroft, A. Robohm, A. Kunin, C. Cecchi, C. Palomares, A. Nippe, Alexander Malinin, A. Böhm, Georgi Sultanov, Fl Linde, T. S. Dai, R. A. Khan, Y. Karyotakis, Hafeez R Hoorani, Y. Uchida, M. von der Mey, J. B. Ye, Pablo Garcia-Abia, B. Borgia, R. Mount, J. Berdugo, E. J. Sanchez, W. Lu, Federico Cindolo, S. Villa, H. Milcent, M. Pohl, V. Soulimov, V. P. Andreev, A. Kasser, I. Vetlitsky, S. C. Tonwar, Howard A. Stone, G. Forconi, D.W. Schmitz, G. Pascale, P. de Jong, N. Shivarov, C. G. Yang, J. Pothier, Yu. Zalite, W. J. Metzger, H. K. Park, Alain Hervé, M. Chemarin, Francesca Cavallari, C. Leggett, Y. Zhou, P. Molnar, Lamberto Luminari, N. Cavallo, P. Spillantini, B. Petersen, E. Fiandrini, Gyorgy Vesztergombi, Luca Malgeri, Robert Clare, Jozsef Toth, Claudio Luci, G. Sauvage, W. G. Ma, Thomas Hebbeker, S. Goldfarb, W. C. van Hoek, Frank Filthaut, G. M. Chen, A. Barczyk, Thomas Ferguson, T. Moulik, G. Castellini, H. F. Chen, J. P. Martin, Aaron Dominguez, L. Taylor, M. P. Sanders, B. L. Betev, J. G. Branson, D. Pandoulas, M. W. Gruenewald, I. Josa-Mutuberria, Paul Lecoq, R. W. Kraemer, M. Napolitano, S. Petrak, Adrian Biland, D. Haas, An. Zalite, R. C. Ball, Felicitas Pauss, G. Y. Zhu, E. Shumilov, Pierre Lecomte, G. Gratta, Egidio Longo, Z. F. Gong, P. Bartalini, D. P. Stickland, F. Ziegler, Y. H. Chang, S. N. Ganguli, S. Rosier-Lees, D. Kamrad, D. H. Kim, V. Shoutko, P. Le Coultre, A. Bay, Maurizio Biasini, Marta Felcini, A. Degré, D. Duchesneau, H. S. Chen, L. Servoli, Gobinda Majumder, G. Chiefari, Marco Pieri, Werner Lustermann, Charles Timmermans, Kajari Mazumdar, Francesca Nessi-Tedaldi, S. Shevchenko, Roberto Battiston, Francesco Becattini, Harvey B Newman, S. Vlachos, W. Kittel, D. O. Prokofiev, G. Marian, A. C. Weber, J. D. Burger, T. Siedenburg, M. Rattaggi, Andrea Baschirotto, G. Rahal-Callot, G. Schwering, Carlo Civinini, X. D. Cai, Y. D. Oh, Pierluigi Paolucci, D. Mangeol, J. K. Kim, N. Raja, D. Luckey, J. Rodin, J. S. Kapustinsky, G. F. Susinno, T. Niessen, Jasper Kirkby, M. A. Falagan, A. Engler, Gerjan Bobbink, G. Raven, H. J. Yang, J. Ulbricht, C. Furetta, R. van Gulik, An.A. Vorobyov, D. Kiss, G. Mirabelli, P. Extermann, Salvatore Mele, M. Capell, H. Suter, Ia Iashvili, Christoph Schäfer, B. Z. Yang, H. Hofer, F. Cesaroni, K. L. Tung, F. C. Erné, M. Fabre, A. J.W. van Mil, K. Lübelsmeyer, H. S. Fesefeldt, E. Pistolesi, Mingming Yang, M. Aguilar-Benitez, S. Wynhoff, O. Adriani, L. J. Gutay, Anna Katharina Kopp, M. G. Alviggi, S. X. Wu, M. Chamizo, Zheng Wang, K. Freudenreich, U. Becker, A. Buffini, Zhenyu Zhang, S. Easo, Giovanni Passaleva, Kati Lassila-Perini, Herwig Schopper, V. Plyaskin, M. E. Sarakinos, Emilio Leonardi, R. Bock, I. Clare, D. Sciarrino, S. Sakar, M. Basile, C. Maña, M. T. Dova, I. C. Brock, I. Duran, A. Gougas, P. Payat, H. Postema, L. Baksay, F. Cotorobai, F. J. Eppling, L. W. Jones, M. Steuer, S. M. Ting, C. Li, K. Banicz, D. Perret-Gallix, U. K. Chaturvedi, R. Ostonen, A. Marin, A. Arefiev, G. M. Bilei, G. Carlino, J.V. Allaby, S. Patricelli, D. Hatzifotiadou, Laszlo Boldizsar, Pàl Hidas, S. Bhattacharya, K. Riles, Y. S. Lu, L. Z. Sun, F. Marzano, G. Coignet, W. Krenz, A. Shvorob, E. Valente, J. H. Field, G. Viertel, Hans J. Vogel, J. Schwenke, C. Y. Chien, A. Kirkby, S. Costantini, M. Campanelli, H. J. Lee, Marcella Diemoz, L. Cifarelli, B. Stoyanov, S. Schmidt-Kaerst, P. Marchesini, Samuel C.C. Ting, P. Duinker, I. Korolko, Simonetta Gentile, V. Brigljevic, A. Klimentov, B. De La Cruz, G. Hu, Speranza Falciano, G. Zilizi, P. Lebrun, M. Acciarri, Guo-Ming Chen, A. Chen, D. van Dierendonck, J. Salicio, M. Lebeau, Ren-Yuan Zhu, Luciano Barone, M. Pedace, T. van Rhee, A. Gurtu, B. Hartmann, A. Hasan, Raffaello D'Alessandro, Leonardo Merola, L. Tauscher, T. Azemoon, T. Paul, Marcos Cerrada, Y. Mi, Tariq Aziz, Yu. Galaktionov, J. Alcaraz, A. Mihul, G. Alemanni, W. W. Kinnison, S. C. Yeh, Crisostomo Sciacca, Konrad Deiters, Alberto Aloisio, L. Fredj, X. W. Tang, P. A. Piroué, B. Zhou, P. G. Rancoita, B. N. Jin, H. Nowak, W. Wallraff, S. Banerjee, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Acciarri, M., Adriani, O., Aguilar Benitez, M., Ahlen, S., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barczyk, A., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Bilei, G. M., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bock, R., Bohm, A., Boldizsar, L., Borgia, B., Bourilkov, D., Bourquin, M., Boutigny, D., Braccini, S., Branson, J. G., Brigljevic, V., Brock, I. C., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Busenitz, J., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chiefari, Giovanni, Chien, C. Y., Cifarelli, L., Cindolo, F., Civinini, G., Clare, I., Clare, R., Coignet, G., Colijn, A. P., Colino, N., Costantini, S., Cotorobai, F., B. d., La, Csilling, A., Dai, T. S., D'Alessandro, R., Asmundis, R. d., Degre, A., Deiters, K., Denes, P., Denotaristefani, F., Diemoz, M., Dierendonck, D. v., Lodovico, F. D., Dionisi, C., Dittmar, M., Dominguez, A., Doria, A., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Mamouni, H. E., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabre, M., Faccini, R., Falagan, M. A., Falciano, S., Favara, A., Fay, J., Fedin, O., Felcini, M., Ferguson, T., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Fisk, I., Forconi, G., Fredj, L., Freudenreich, K., Furetta, C., Galaktionov, Y., Ganguli, S. N., Garcia Abia, P., Gataullin, M., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gougas, A., Gratta, G., Gruenewald, M. W., Gulik, R. v., Gupta, V. K., Gurtu, A., Gutay, L. J., Haas, D., Hartmann, B., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Hidas, P., Hirschfelder, J., Van, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Iashvili, I., Jin, B. N., Jones, L. W., Jong, P. d., Josa Mutuberria, I., Kasser, A., Khan, R. A., Kamrad, D., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzle Focacci, M. N., Kim, D., Kim, D. H., Kim, J. K., Kim, S. C., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., Korolko, I., Koutsenko, V., Kraemer, R. W., Krenz, W., Kunin, A., Lacentre, P., P. L., De, Landi, G., Lapoint, C., Lassila Perini, K., Laurikainen, P., Lavorato, A., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Coultre, P. L., Lee, H. J., Leggett, C., J. M., Le, Leiste, R., Leonardi, E., Levtchenko, P., Li, C., Lin, C. H., Lin, W. T., Linde, F. L., Lista, L., Liu, Z. A., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubelsmeyer, K., Luci, C., Luckey, D., Luminari, L., Lustermann, W., W. G., Ma, Maity, M., Majumder, G., Malgeri, L., Malinin, A., Mana, C., Mangeol, D., Marchesini, P., Marian, G., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mele, S., Merola, Leonardo, Meschini, M., Metzger, W. J., Der, M. v., Mi, Y., Migani, D., Mihul, A., A. J. W., Milcent, H., Mirabelli, G., Mnich, J., Molnar, P., Monteleoni, B., Moore, R., Moulik, T., Mount, R., Muanza, G. S., Muheim, F., A. J. M., Nahn, S., Napolitano, Marco, Nessi Tedaldi, F., Newman, H., Niessen, T., Nippe, A., Nisati, A., Nowak, H., Y. D., Oh, Organtini, G., Ostonen, R., Palomares, C., Pandoulas, D., Paoletti, S., Paolucci, P., Park, H. K., Park, I. H., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Peach, D., Pedace, M., Pei, Y. J., Pensotti, S., Perret Gallix, D., Petersen, B., Petrak, S., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Pistolesi, E., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Pothier, J., Produit, N., Prokofiev, D., Quartieri, J., Rahal Callot, G., Raja, N., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Ren, D., Rescigno, M., Reucroft, S., Rhee, T. v., Riemann, S., Riles, K., Rind, O., Robohm, A., Rodin, J., Roe, B. P., Romero, L., Rosier Lees, S., Rosselet, P., Roth, S., Rubio, J. A., Ruschmeier, D., Rykaczewski, H., Sakar, S., Salicio, J., Sanchez, E., Sanders, M. P., Sarakinos, M. E., Sauvage, G., Schafer, C., Schegelsky, V., Schmidt Kaerst, S., Schmitz, D., Schneegans, M., Scholz, N., Schopper, H., Schotanus, D. J., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sciarrino, D., Servoli, L., Shevchenko, S., Shivarov, N., Shoutko, V., Shukla, J., Shumilov, E., Shvorob, A., Siedenburg, T., Son, D., Soulimov, V., Smith, B., Spillantini, P., Steuer, M., Stickland, D. P., Stone, H., Stoyanov, B., Straessner, A., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Tang, X. W., Tauscher, L., Taylor, L., Timmermans, C., S. C. C., Ting, S. M., Tonwar, S. C., Toth, J., Tully, C., Tung, K. L., Uchida, Y., Ulbricht, J., Valente, E., Vesztergombi, G., Vetlitsky, I., Viertel, G., Villa, S., Vivargent, M., Vlachos, S., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vorvolakos, A., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Z. M., Weber, A., S. X., Wu, Wynhoff, S., Xu, J., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, H. J., Yang, M., J. B., Ye, Yeh, S. C., You, J. M., Zalite, A., Zalite, Y., Zemp, P., Zeng, Y., Zhang, Z. P., Zhou, B., Zhou, Y., Zhu, G. Y., Zhu, R. Y., Zichichi, A., Ziegler, F., Zilizi, G., IHEF (IoP, FNWI), and L3 (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, Meson, LUND MONTE-CARLO, Electron–positron annihilation, Hadron, AVERAGE LIFETIME, PRECISION-MEASUREMENT, OSCILLATION FREQUENCY, MIXING PARAMETER, 01 natural sciences, B-HADRON LIFETIME, JET FRAGMENTATION, Nuclear physics, Rate difference, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Limit (mathematics), 010306 general physics, Z-DECAYS, L3 EXPERIMENT, Physics, 010308 nuclear & particles physics, SEMILEPTONIC DECAYS, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: An upper limit on the lifetime difference of short- and long-lived $\rm B^0_s$ mesons has been obtained using an inclusive bottom hadron sample from 2 million hadronic Z decays collected by the L3 experiment at LEP. A lifetime fit has been performed on data samples separately enriched in neutral and charged b hadrons. An experimental upper limit on the decay rate difference of short- and long-lived $\rm B^0_s$ mesons of \begin{displaymath} ~~~~ {\rm (|\Delta\Gamma|/\Gamma)_{B^0_s}} < 0.67 ~~~~~~~\mathrm{(95\% \; C.L.)} \end{displaymath} has been determined. In addition, the lifetimes of $\rm B^+$ and $\rm B^0_d$ mesons have been measured to be $\tau(\rm B^+) = 1.66 \pm 0.06 \, \pm 0.03 \; \mathrm{ps}$ and $\tau(\rm B^0_d) = 1.52 \pm 0.06 \, \pm 0.04 \; \mathrm{ps}$, where the first errors are statistical and the second are systematic.
Published: 1998

32. Upsilon production in Z decays

Author: J. Alcaraz, P. Schmitz, Y. Galaktionov, Francesca Cavallari, V. Schegelsky, Maurizio Biasini, Marta Felcini, C. Leggett, J. D. Burger, Francesco Becattini, R. W. Kraemer, Y. D. Oh, U. K. Chaturvedi, J. P. Martin, P. Lebrun, S. Wynhoff, H. Rykaczewski, Giovanni Organtini, G. Y. Zhu, Y. Karyotakis, R. C. Ball, A. Nippe, S. Easo, M. Vivargent, Kati Lassila-Perini, E. Shumilov, A. Mihul, G. Alemanni, Z. A. Liu, C. Sciacca, F. DeNotaristefani, Manas Maity, P. Berges, Steve Nahn, J. H. Field, D. H. Kim, V. Shoutko, P. Spillantini, Werner Lustermann, A. Vorvolakos, X. Y. Yao, W. W. Kinnison, W.G. Ma, L. J. Gutay, A. Malinin, An. Zalite, J. G. Xu, G. Landi, Marco Meschini, S. C. Yeh, D. Kirkby, P. Bartalini, G. Mirabelli, G. Chiefari, R. Völkert, M. Tonutti, R. Y. Zhu, S. Falciano, Y. J. Pei, P. Marchesini, R. Leiste, H. Anderhub, S. Roth, W. J. Metzger, Christoph Paus, T. Paul, Jean Fay, S. N. Ganguli, D. Boutigny, H.F. Chen, L. Luminari, Christopher George Tully, R. Mount, N. Cavallo, A. Lebedev, Dong-Chul Son, Mingshui Chen, P. Molnar, M. Schneegans, S. Ahlen, N. Gheordanescu, C. Lapoint, K. Lübelsmeyer, J. Gerald, R. Faccini, V. Brigljevic, G. F. Susinno, G. Gratta, A. Chen, J. J. Blaising, Wolfgang Lohmann, Raffaello D'Alessandro, H. Vogt, B. Bertucci, Nicolas Produit, Stefano Giagu, M. Bourquin, H. K. Park, Bryan R. Smith, H. El Mamouni, A. Buffini, George Alverson, Luisa Cifarelli, F. Anselmo, Nicanor Colino, D. Pandoulas, H. Tuchscherer, W. J. Burger, W. Lu, A. Straessner, O. Adriani, F. J. Eppling, P. Bagnaia, Lucas Taylor, S. Bhattacharya, Federico Cindolo, S. Mangla, Luca Lista, Joachim Mnich, D. Ren, B. Monteleoni, C. Maña, M. von der Mey, C. Dionisi, Michael Dittmar, Simone Paoletti, Suchandra Dutta, I. Dome, J. B. Ye, James G Branson, Juven Wang, Mariagrazia Alviggi, A. J.M. Muijs, B. P. Roe, J. Shukla, V. Innocente, A. Robohm, F. Cesaroni, M. Chamizo, Emilio Leonardi, W. C. van Hoek, Suresh C Tonwar, M. Napolitano, A. P. Colijn, Manjit Kaur, Frank Filthaut, L. Z. Sun, L. Tauscher, J. D. Swain, D. Peach, T. Azemoon, C. G. Yang, R. Bock, Thomas Ferguson, A. Kunin, Dimitri Bourilkov, Pierluigi Paolucci, M. W. Gruenewald, Hafeez R Hoorani, A. Biland, I. Josa-Mutuberria, S. C. Kim, L. W. Jones, Willis Lin, S. Braccini, T. Angelescu, I. Vetlitsky, G. Castellini, R. A. Khan, W. van Rossum, R. T. Van de Walle, D. J. Schotanus, D. Kamrad, B. Fenyi, U. Becker, G. Forconi, Igor Vorobiev, S. Pensotti, B. Petersen, A. Barczyk, G. J. Bobbink, J. Berdugo, Yongsun Kim, Vladimir Andreev, L. Baksay, F. Cotorobai, P. Levtchenko, Z. Z. Xu, K. Riles, D. Sciarrino, J. Casaus, Y. Zhou, D. Ruschmeier, Z. F. Gong, S. Shevchenko, Gyorgy Vesztergombi, P. Zemp, M. Rescigno, C. Y. Chien, I. Fisk, Dong-Hyun Kim, Panos A Razis, Y. H. Chang, F. Behner, F. C. Emé, R. Barillère, P. Laurikainen, J. S. Kapustinsky, A. Böhm, Howard A. Stone, K. Sudhakar, G. Coignet, Helmut Vogel, G. Sauvage, Andrea Baschirotto, T.S. Dai, Marcos Cerrada, V. K. Gupta, Y. Mi, J. A. Rubio, T. Moulik, S. Goldfarb, G. Pascale, Andre Sopczak, P. de Jong, N. Shivarov, Claudio Luci, F. Wittgenstein, X. W. Tang, Alessandra Doria, M. N. Kienzle-Focacci, Roberto Battiston, M. Campanelli, Joel Goldstein, Yu. Zalite, Robert Clare, A. Zichichi, Y. S. Lu, A. Engler, A. Csilling, Harvey B Newman, Thomas Hebbeker, Paul Lecoq, Axel König, S. Müller, S. Petrak, B. Borgia, S. X. Wu, M. T. Dova, B. N. Jin, R. Ostonen, A. Marin, S. Morganti, J. Ulbricht, S. Reucroft, A. Favara, I. H. Park, A. Weber, H. S. Fesefeldt, C. H. Lin, E. Pistolesi, F. Di Lodovico, D. Duchesneau, H. S. Chen, L. Servoli, Gobinda Majumder, N. Scholz, D. O. Prokofiev, F. L. Linde, V. Pojidaev, D. DiBitonto, F. Ziegler, F. Muheim, Jasper Kirkby, X. D. Cai, S. R. Hou, M. Wadhwa, David Stickland, Ph. Rosselet, M. Sassowsky, A. J.W. van Mil, A. Boucham, Anna Katharina Kopp, M. Steuer, Pablo Garcia-Abia, Alain Hervé, E. J. Sanchez, Y. Uchida, C. Palomares, Luciano Romero, A.M. Cartacci, A. Bay, A. Buijs, Oleg Fedin, I. Clare, J. Busenitz, Carlo Civinini, G. Raven, J. Tóth, M. P. Sanders, L. Merola, J. P. Emenwein, G. G.G. Massaro, M. Aguilar-Benitez, Marcella Diemoz, M. Fabre, K. Banicz, D. Perret-Gallix, V. Soulimov, B. L. Betev, Francesca Nessi-Tedaldi, M. Lebeau, Herwig Schopper, S. Gentile, H. Postema, A. Pevsner, A. Gurtu, Luciano Barone, S. V. Chekanov, S. C. Blyth, T. van Rhee, K. L. Tung, A. Arefiev, Yu. Efremenko, T. Siedenburg, D. Schmitz, P. Extermann, W. Kittel, Salvatore Mele, P. Lecomte, Christoph Schäfer, B. Z. Yang, G. Rahal-Callot, N. Raja, E. Valente, W. Krenz, V. Commichau, H. Suter, D. McNally, B. Hartmann, A. Hasan, Y. Kamyshkov, J. Schwenke, E. Fiandrini, S. Costantini, Gianpaolo Carlino, F. Ferroni, G. Schwering, C. Furetta, J. C. Pinto, M. Acciarri, Guo-Ming Chen, U. Uwer, D. van Dierendonck, J. Salicio, A. Shvorob, J. K. Kim, V. Koutsenko, A. Kirkby, C. Li, B. Stoyanov, S. Schmidt-Kaerst, S. S. Gau, E. Drago, Gian Mario Bilei, H. Nowak, Samuel C.C. Ting, P. Duinker, I. Korolko, A. Klimentov, K. Jenkes, Zheng Wang, Zhenyu Zhang, H. Janssen, Kenneth Francis Read, M. E. Sarakinos, K. Strauch, P. Ladron de Guevara, B. De La Cruz, G. Hu, Konrad Deiters, A. Gougas, Alberto Aloisio, I. C. Brock, P. A. Piroué, G. Viertel, B. Zhou, H. Hofer, P. G. Rancoita, S. Banerjee, Zp Zhang, P. Denes, M. Pauluzzi, G. Passaleva, Tariq Aziz, W. Wallraff, I. Duran, J.V. Allaby, D. Hatzifotiadou, J. Rodin, H. Opitz, Laszlo Boldizsar, T. Niessen, L. Fredj, F. Marzano, Marco Pieri, G. Ambrosi, S. Riemann, Roger Moore, Georgi Sultanov, X. L. Wang, M. Chemarin, R. de Asmundis, G. M. Chen, Aaron Dominguez, Felicitas Pauss, S. Rosier-Lees, P. Le Coultre, M. Basile, D. Mangeol, D. Luckey, D. Kiss, Aleandro Nisati, L. Malgeri, O. Rind, G. Cara Romeo, C. Cecchi, Subir Sarkar, K. Freudenreich, A. A. Vorobyov, M. Pohl, J. M. You, V. Plyaskin, M. Capell, Y. Zeng, J. M. Le Goff, A. Kasser, E. Longo, H. O. Cohn, Davide Piccolo, A. Degré, P. H. Fisher, M. Rattaggi, S. Patricelli, S. J. Hong, S. M. Ting, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Ambrosi, Giovanni, Bourquin, Maurice, Braccini, Saverio, Burger, William, Paus-Cecchi, Claudia, Extermann, Pierre, Field, John, Fredj, Lotfi, Kienzle, Maria-Novella, Muheim, Franz, Produit, Nicolas, Sciarrino, Deborah, Susinno, Gabriele, LEP (IHEF, IoP, FNWI), Acciarri, M., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Ball, R. C., Banerjee, S., Banicz, K., Barczyk, A., Barillere, R., Barone, L., Bartalini, P., Baschirotto, A., Basile, M., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Bhattacharya, S., Biasini, M., Biland, A., Bilei, G. M., Blaising, J. J., Blyth, S. C., Bobbink, G. J., Bock, R., Bohm, A., Boldizsar, L., Borgia, B., Boucham, A., Bourilkov, D., Bourquin, M., Boutigny, D., Braccini, S., Branson, J. G., Brigljevic, V., Brock, I. C., Buffini, A., Buijs, A., Burger, J. D., Burger, W. J., Busenitz, J., Cai, X. D., Campanelli, M., Capell, M., Romeo, G. C., Carlino, G., Cartacci, A. M., Casaus, J., Castellini, G., Cavallari, F., Cavallo, N., Cecchi, C., Cerrada, M., Cesaroni, F., Chamizo, M., Chang, Y. H., Chaturvedi, U. K., Chekanov, S. V., Chemarin, M., Chen, A., Chen, G., Chen, G. M., Chen, H. F., Chen, H. 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S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Goldfarb, S., Goldstein, J., Gong, Z. F., Gougas, A., Gratta, G., Gruenewald, M. W., Gupta, V. K., Gurtu, A., Gutay, L. J., Hartman, B., Hasan, A., Hatzifotiadou, D., Hebbeker, T., Herve, A., Vanhoek, W. C., Hofer, H., Hong, S. J., Hoorani, H., Hou, S. R., Hu, G., Innocente, V., Janssen, H., Jenkes, K., Jin, B. N., Jones, L. W., Dejong, P., Josamatuberria, I., Kasser, A., Khan, R. A., Kamrad, D., Kamyshkov, Y., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Kienzlefocacci, M. N., Kim, D., Kim, D. H., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirkby, J., Kiss, D., Kittel, W., Klimentov, A., Konig, A. C., Kopp, A., Korolko, I., Koutsenko, V., Kraemer, R. W., Krenz, W., Kunin, A., Deguevara, P. L., Landi, G., Lapoint, C., Lassilaperini, K., Laurikainen, P., Lebeau, M., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Leggett, C., Legoff, J. 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Subjects: Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Hadron, HEAVY QUARKONIUM, LEP, ddc:500.2, 01 natural sciences, PHYSICS, Theoretical physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Decay chain, J/PSI-PRODUCTION, FRAGMENTATION, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, L3 EXPERIMENT
Abstract: We have searched for evidence of Upsilon production in 3.5 million hadronic Z decays collected by the L3 detector at LEP in 1991-1995. No signals are observed for the decay chain Z -> Upsilon X; Upsilon -> l+l- (l= e, mu), therefore upper limits at the 95% confidence level are set on the following Z branching fractions: BR (Z -> Upsilon(1S) X) < 5.5 x 10**-5; BR (Z -> Upsilon(2S) X) < 13.9 x 10**-5; BR (Z -> Upsilon(3S) X) < 9.4 x 10**-5.
Published: 1997

33. Measurement of energetic single-photon production at LEP

Author: Konrad Deiters, Alberto Aloisio, X. W. Tang, I. Sheer, P. A. Piroué, G. Viertel, B. Zhou, B. C.C. van der Zwaan, W. van Rossum, A. A. Syed, P. G. Rancoita, B. N. Jin, H. Nowak, G. Forconi, Gerard Fernandez, Adrian Biland, M. Rescigno, S. Banerjee, W. J. Burger, Zp Zhang, L. J. Gutay, Tariq Aziz, M. Vivargent, Michael Dittmar, Maurizio Biasini, E. Dénes, I. Dorne, M. Redaelli, Marta Felcini, Crisostomo Sciacca, Marco Pieri, M. Yzerman, K. Freudenreich, R. Sehgal, D. Duchesneau, Bernard Ille, A. Kasser, R. Leiste, A. Arefiev, D. McNally, G. Pascale, G.G.G. Massaro, Claudio Luci, Raffaello D'Alessandro, Leonardo Merola, Francesco Becattini, U. K. Chaturvedi, Y. S. Lu, Robert Clare, K. Lübelsmeyer, P. Levtchenko, A. Engler, S. Wynhoff, J. D. Swain, B. Monteleoni, F. Sticozzi, U. Becker, Elisabetta Gallo, I. Duran, J. M. Salicio, D. Pandoulas, R. Fabbretti, M. Capell, S. S. Gau, D. Boutigny, J. C. Sens, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, Helmut Vogel, Y. F. Wang, E. Gonzalez, S. Lanzano, J. H. Field, G. Trowitzsch, C. Y. Chien, J. S. Lee, E. Pistolesi, S. Reucroft, M. Napolitano, F. J. Eppling, G. J. Zhou, L. W. Jones, I. Josa-Mutuberria, H. S. Chen, S. M. Ting, M. Hebert, Panos A Razis, F. Duhem, R. Morand, T. Azemoon, T. E. Coan, J. G. Branson, Marcel Merk, R. Mount, L. Servoli, Z. M. Wang, A. Kirkby, S. Easo, V. Plyaskin, C. Maña, I. C. Brock, S. Shotkin, Howard A. Stone, G. Schwering, T. Paul, Marcos Cerrada, Nicola Cavallo, Davide Piccolo, Vincenzo Monaco, S. N. Ganguli, Alexander Malinin, Roberto Battiston, S. Mele, D. P. Stickland, W. Wallraff, Kajari Mazumdar, O. Toker, T. Spickermann, A. Degré, F. Wittgenstein, Lamberto Luminari, G. Landi, R. Weill, Y. Mi, Aa Vorobyov, X. L. Wang, Luca Lista, B. Lindemann, H. Fesefeldt, L. Ludovici, E. Drago, A. Lebedev, Dong-Chul Son, Axel König, T. Kramer, Y. Mir, C. H. Ye, Gerjan Bobbink, B. Borgia, M. Rattaggi, R. C. Ball, P. Ladron de Guevara, Andre Sopczak, S. Khokhar, T.R. McMahon, Ren-Yuan Zhu, Luciano Barone, J. J. Blaising, J. Ulbricht, B. De La Cruz, D. Fernandez, P. Vikas, G. Tsipolitis, R. Ostonen, Stefan Kirsch, Stefano Giagu, M. T. Choi, G. Sartorelli, K. N. Qureshi, Z. F. Gong, A. Marin, Jianming Qian, G. Hu, Juven Wang, Yanwen Liu, M. Schneegans, F. Ferroni, I. Vorobiev, E. Brambilla, H. F. Chen, Francesca Nessi-Tedaldi, Yu. Galaktionov, M. Tonutti, A. Gougas, Mariagrazia Alviggi, Pierluigi Paolucci, A. Buytenhuijs, C. Schäfer, M. Gailloud, M. Sassowsky, J. Alcaraz, J. Berdugo, Werner Lustermann, Georgi Sultanov, G. Cara Romeo, B. P. Roe, A. Gurtu, C. Burgos, K. Sudhakar, Els Koffeman, H. J. Schreiber, Carlos Willmott, H. R. Dimitrov, W. Kittel, E. J. Sanchez, L. Urbán, I. Vetlitsky, Xd Cai, J. D. Burger, G. Rahal-Callot, Marcella Diemoz, I. Clare, C-Q. Li, Speranza Falciano, J. B. Ye, V. K. Gupta, Willis Lin, Sabine Riemann, F. J. Rodriguez, S. Röhner, G. F. Susinno, T. S. Dai, M. T. Dova, R. A. Khan, P. de Jong, Dimitri Bourilkov, A. 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Sun, Luisa Cifarelli, D. Hauschildt, M. Caria, B. L. Betev, Y. G. Kim, V. P. Andreev, D. Schmitz, BT Bouwens, Y. H. Chang, George Alverson, Samuel C.C. Ting, M. Pauluzzi, H. Kuijten, G. Sauvage, P. Marchesini, D. Ren, M. Lenti, L. Romero, J. S. Kapustinsky, Ming Zeng, J. Shukla, G. M. Bilei, X. T. Cui, U. Vikas, M. Chemarin, R. Barillère, M. N. Kienzle-Focacci, R. Rosmalen, M. Acciarri, Guo-Ming Chen, U. Uwer, C. Leggett, M. Guanziroli, An.A. Vorobyov, Harvey B Newman, V. Brigljevic, N. Scholz, G. M. Chen, G. Passaleva, M. W. Gruenewald, Zhuoxiang Ren, J. P. Martin, A. M. Cartacci, E. Shumilov, V. Soulimov, V. Shoutko, M. Wadhwa, D. J. Schotanus, O. Adriani, J. M. Le Goff, B. C. Riemers, R. Raghavan, A. Adam, Egidio Longo, S. Patricelli, J. Salicio, A. Tsaregorodtsev, M. Bourquin, G. Alkhazov, D. H. Wright, N. Gheordanescu, G. S. Sanders, Laurent Vuilleumier, Roberto Castello, Q. Ye, J. M. You, Lucas Taylor, V. R. Krastev, Joel Goldstein, K. Strauch, P. G. Seiler, J. A. Rubio, B. 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Koutsenko, Flores, Sylvie, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Acciarri, M., Adam, A., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. 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L., Landi, G., Lanzano, S., Laurikainen, P., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Lu, W., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., W. G., Ma, Macdermott, M., Maity, M., Malgeri, L., Malik, R., Malinin, A., Mana, C., Mangla, S., Maolinbay, M., Marchesini, P., Marin, A., Martin, J. P., Marzano, F., G. G. G., Mazumdar, K., Mcmahon, T., Mcnally, D., Mele, S., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monaco, V., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Ostonen, R., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Pevsner, A., Piccolo, D., Pieri, M., Pinto, J. C., Piroue, P. A., Pistolesi, E., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Produit, N., Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Redaelli, M., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Robohm, A., Rodriguez, F. J., Roe, B. P., Rohner, M., Rohner, S., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Salicio, J., Salicio, J. M., Sanchez, E., Sanders, G. S., Santocchia, A., Sarakinos, M. E., Sarkar, S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schafer, C., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Scholz, N., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Soulimov, V., Spartiotis, C., Spickermann, T., Spillantini, P., Steuer, M., Stickland, D. P., Stiocozzi, F., Stone, H., Strauch, K., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Timellini, R., S. C. C., Ting, S. M., Toker, O., Tonutti, M., Tonwar, S. C., Toth, J., Trowitzsch, G., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, J. C., Wang, X. L., Wang, Y. F., Wang, Z. M., Weber, A., Weill, R., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Z. Z., Xu, Yang, B. Z., Yang, C. G., Yang, G., Yao, X. Y., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., B. C. C., and L3 (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Electron–positron annihilation, 01 natural sciences, 7. Clean energy, Standard Model, Nuclear physics, SEARCH, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, L3 EXPERIMENT, Coupling, Physics, fotones, física, Magnetic moment, 010308 nuclear & particles physics, Z0 DECAY, Electroweak interaction, E+E COLLISIONS, NEUTRINO MAGNETIC-MOMENT, TAU-NEUTRINO, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, High Energy Physics::Experiment, Neutrino, Z-BOSON, Event (particle physics), Particle Physics - Experiment
Abstract: We describe the sample of energetic single-photon events (Eγ > 15 GeV) collected by L3 in the 1991–1993 LEP runs. The event distributions agree with expectations from the Standard Model. The data are used to constrain the ZZγ coupling and to set an upper limit of 4.1 × 10−6, μB (90% C.L.) on the the magnetic moment of the τ neutrino., Facultad de Ciencias Exactas
Published: 1995

34. Inclusive search for the charmless radiative decay of the b-quark (b → sγ)

Author: L. Vuilleumier, Yu. Kamyshkov, V. K. Gupta, I. Clare, R. Bizzarri, Gianpaolo Carlino, A.M. Cartacci, Roberto Battiston, M. T. Choi, S. Ro, J. Munich, B. Borgia, G. Schwering, Ren-Yuan Zhu, J. M. Lubbers, R. Fabbretti, D. DiBitonto, M. Maolinbay, W. Lohmann, A. C. Weber, B. N. Jin, F. Wittgenstein, G. F. Susinno, L. Z. Sun, Luca Lista, A. Tsaregorodtsev, P. Berges, T. E. Coan, A. Lebedev, Dong-Chul Son, A. A. Syed, A. Santocchia, F. Nessi-Tedaldi, R. Becker, M. Yzerman, J. J. Blaising, K. L. Tung, Jun Guo, B. Lindemann, D. H. Zhang, F. Sticozzi, A. Mihul, K. S. Kumar, B. C. Stringfellow, Yuehong Xie, J. Perrier, A. Gurtu, G. Pascale, M. Fukushima, S. Shotkin, V. R. Krastev, H.F. Chen, J. Busenitz, K. Schultze, G. Landi, W. Y. Chen, E. Nagy, Dimitri Bourilkov, B.C. Riemers, R. Mount, Pablo Garcia-Abia, K. Lübelsmeyer, Alain Hervé, S. Kirsch, A. Nippe, Alexander Malinin, E. Brambilla, B. Hartmann, Mariagrazia Alviggi, Tariq Aziz, A. Hasan, M. Pauluzzi, D. Lanske, R. Barillère, Jianming Qian, A. Bay, G. Hu, Maria-Teresa Dova, Raffaello D'Alessandro, R. Raghavan, A. C. König, M. Merk, Christoph Paus, H. Nowak, M. M. Ilyas, Leonardo Merola, X. W. Tang, D. Ren, Carlo Civinini, A.A. Vorobyov, J. G. Xu, G. Raven, I. Vetlitsky, A. Marin, J. S. Lee, W.G. Ma, M. Lenti, P. Extermann, D. M. Lee, S. Jezequel, Zheng Wang, R. Rosmalen, M. Aguilar-Benitez, C. Gu, K. Freudenreich, B. Z. Yang, Yueh-Feng Liu, D. Pandoulas, D. Fernandez, J. Berdugo, Yongsun Kim, Stefan Roth, M. Röhner, B. Zhou, G. Fernandez, H. Postema, C. Spartiotis, D. Perret-Gallix, J. Bechtluft, W. van Rossum, M. Chen, V. Pojidaev, Adrian Biland, B. Ille, C. Dionisi, T. Spickermann, T. Azemoon, L. Gutay, F. J. Rodriguez, G. Finocchiaro, Y. Karyotakis, N. Yunus, S. Schulte, G. Gratta, Z. Y. Lin, J. M. Salicio, Z. D. Qi, A. Krivshich, Z. F. Gong, K. Sudhakar, E. Drago, R. Morand, Z. L. Xue, G. B. Mills, H.J. Schreiber, S. J. Fan, M. Pohl, M. Hebert, Crisostomo Sciacca, J. C. Sens, D. Antreasyan, M. Brooks, Marco Pieri, Charles Leggett, J. A. Rubio, G. Yang, J. D. Burger, G. Rahal-Callot, M. Zeng, A. L. Anderson, Marta Felcini, B. L. Betev, Harvey B Newman, K. Hilgers, Marcos Cerrada, P. Zemp, A. Rubbia, S. Ahlen, V. Schegelsky, D. H. Wright, J. B. Ye, O. Fackler, Howard A. Stone, T.S. Dai, M. Guanziroli, Z. L. Ren, E. Fiandrini, W. Kittel, L. Ludovici, N. Gheordanescu, Y. J. Pei, E. Leonardi, Y. S. Lu, A. Gougas, D. P. Stickland, J. F. Zhou, Francesco Becattini, G. M. Bilei, D. Gele, A. Engler, P. Duinker, Andrea Contin, M. Capell, G. Forconi, D. Goujon, J. M. Ma, R. T. Van de Walle, P. Marchesini, S. Giagu, O. Adriani, J. K. Kim, Konrad Deiters, M. Dhina, M. Vivargent, T. McMahon, P. G. Seiler, Y. Mir, K. Read, L. Servoli, R. Malik, Martin White, Alberto Aloisio, Lucas Taylor, A. Ricker, S. Patricelli, S. Easo, H. S. Fesefeldt, A. Klimentov, F. Marion, U. K. Chaturvedi, J. Alcaraz, D. Boutigny, J. P. Martin, Wt Lin, J. S. Kapustinsky, Zhiqing Zhang, L. Djambazov, A. Böhm, C. R. Wang, G. J. Bobbink, M. Bourquin, Y. F. Wang, J. Y. Liao, L. Fredj, D. Hauschildt, G. Coignet, S. Lanzano, K. Strauch, A. Sopczak, Jorg Wenninger, C. Chen, M. MacDermott, J. H. Field, C. Y. Chien, A. Kirkby, J. Bao, F. Ferroni, I. Sheer, D. McNally, C. Willmott, P. A. Piroué, W. J. Burger, H. Suter, Yu. Galaktionov, D. Z. Shen, X. D. Cai, C. Li, R. Bock, M. Fabre, C. Zaccardelli, U. Becker, P. Lebrun, S. Wynhoff, Hans J. Vogel, B. C.C. van der Zwaan, E. Longo, M. Rescigno, Tobias Kramer, S. Khokhar, H. Anderhub, J. A. Bakken, W. W. Kinnison, S. C. Yeh, M. Sassowsky, I. Duran, D. Duchesneau, P. G. Rancoita, J. Schwenke, S. Riemann, J. Behrens, P. J. Li, M. S. Sarakinos, R. A. Khan, B. Monteleoni, R. Weill, M. Caria, F. Cotorobai, C. Maña, E. Dénes, A. Atamanchuk, V. Plyaskin, BT Bouwens, G. J. Zhou, L. W. Jones, D. S. Yan, G. Terzi, P. H. Fisher, H. Kuijten, H.R. Dimitrov, Q. An, S. Goldfarb, M. Schneegans, H. R. Gustafson, R. Sehgal, U. Uwer, M. N. Kienzle-Focacci, W. Wallraff, A. Chen, J. Salicio, S. Banerjee, R. de Asmundis, L. Luminari, H. O. Cohn, P. Arce, S. M. Ting, Kajari Mazumdar, S. Müller, C. Neyer, S. Chung, X. T. Cui, M. Dittmar, R. C. Ball, F. Cesaroni, Pierluigi Paolucci, G. Sartorelli, F. Pauss, S. Paoletti, Manjit Kaur, G. Mirabelli, Y. Mi, D. Luckey, A. Nadtochy, D.W. Schmitz, G.G.G. Massaro, Robert Clare, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, I. Leedom, M. Napolitano, M. Gailloud, S. Falciano, M. Wadhwa, D. J. Schotanus, J. Tóth, K. N. Qureshi, M. Möller, Fj Eppling, A. Buytenhuijs, C. G. Yang, Z. Z. Xu, G. Chiefari, S. Shevchenko, Q. Ye, F. Behner, Andrea Baschirotto, L. Martinez-Laso, G. Chen, L. Antonov, S. Reucroft, W. Lustermann, John Swain, B. Wysłouch, G. Organtini, A. Kunin, E. Gonzalez, Peter Denes, J. Ulbricht, Paolo Bagnaia, G. Viertel, H. El Mamouni, S. C. Tonwar, K. Y. Lee, Frank Filthaut, Patricia McBride, Thomas Ferguson, Marco Meschini, F. Marzano, E. Gallo, J. Shukla, G. S. Sanders, R. Klöckner, D. Kirkby, V. Innocente, C. Wang, Christopher George Tully, Igor Vorobiev, H. T. Li, M. Sachwitz, Panos A Razis, Y. H. Chang, B. Bertucci, H. Rykaczewski, X. R. Shi, Nicanor Colino, P. Vikas, W. J. Metzger, N. E. Moulai, H. Vogt, S. Rosier-Lees, E. Koffeman, P. Kapinos, Georgios Tsipolitis, K. Hangarter, W. Friebel, A. Pevsner, R. Starosta, Gy L. Bencze, X. Y. Cui, Reinhard W. Schulte, E. Shumilov, S. Morganti, V. Shoutko, Roberto Castello, R. Leiste, C. Warner, F. Plasil, J. T. He, H. S. Chen, O. Rind, Hafeez R. Hoorani, G. Sauvage, M. Tonutti, U. Vikas, Georgi Sultanov, X. L. Wang, V. P. Andreev, M. Chemarin, Ingrid U. Scott, F. L. Linde, S. Pensotti, Antonino Zichichi, P. Spillantini, J. M. Le Goff, A. Kasser, Guofan Hu, Jean Fay, S. N. Ganguli, T. Paul, H. A. Rizvi, L. Barone, M. Bosetti, J. G. Branson, Giovanni Ambrosi, Davide Piccolo, F. DeNotaristefani, S. Gentile, Z. W. Yin, Luciano Romero, A. Degré, C. F. He, M. Rattaggi, H. Janssen, G. M. Chen, B. P. Roe, P. Lecomte, A. Bujak, Oliver Kornadt, J. M. You, M. Diemoz, V. Koutsenko, A. Arefiev, K. Riles, H. Schopper, A. Koulbardis, W. Krenz, S. X. Wu, Ph. Rosselet, C. H. Ye, M. Steuer, Samuel C.C. Ting, G. Passaleva, M. W. Gruenewald, I. Josa-Mutuberria, S. C. Kim, C. Luci, L. Urbán, M. A. Niaz, H. Hofer, George Alverson, P. V.K.S. Baba, P. Le Coultre, T. J. Wenaus, Y. Zeng, E. Valente, P. Schmitz, M. Biasini, J. Weber, I. C. Brock, F. C. Erné, T. Angelescu, IHEF (IoP, FNWI), Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelescu, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Bechtluft, J., Becker, R., Becker, U., Behner, F., Behrens, J., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bock, R., Bohm, A., Borgia, B., Bosetti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Buytenhuijs, A., Cai, X. D., Capell, M., Caria, M., Carlino, G., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Cotorobai, F., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dittmar, M., Djambazov, L., Dova, M. T., Drago, E., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Finocchiaro, G., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gele, D., Gentile, S., Gheordanescu, N., Giagu, S., Goldfarb, S., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M., Gu, C., Guanziroli, M., Guo, J. K., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hangarter, K., Hartmann, B., Hasan, A., Hauschildt, D., C. F., He, J. T., He, Hebbeker, T., Hebert, M., Herve, A., Hilgers, K., Hofer, H., Hoorani, H., Hu, G., G. Q., Hu, Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Jezequel, S., Jin, B. N., Jones, L. W., Josamutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Y., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Kaur, M., Khokhar, S., Kienzlefocacci, M. N., Kim, J. K., Kim, S. C., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Kirsch, S., Kittel, W., Klimentov, A., Klockner, R., Konig, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Kramer, T., Krastev, V. R., Krenz, W., Krivshich, A., Kuijten, H., Kumar, K. S., Kunin, A., Landi, G., Lanske, D., Lanzano, S., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, P., Lee, D. M., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Legoff, J. M., Leiste, R., Lenti, M., Leonardi, E., Li, C., H. T., Li, P. J., Li, Liao, J. Y., Lin, W. T., Lin, Z. Y., Linde, F. L., Lindemann, B., Lista, L., Liu, Y., Lohmann, W., Longo, E., Y. S., Lu, Lubbers, J. M., Lubelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Lustermann, W., J. M., Ma, W. G., Ma, Macdermott, M., Malik, R., Malinin, A., Mana, C., Maolinbay, M., Marchesini, P., Marion, F., Marin, A., Martin, J. P., Martinezlaso, L., Marzano, F., G. G. G., Mazumdar, K., Mcbride, P., Mcmahon, T., Mcnally, D., Merk, M., Merola, Leonardo, Meschini, M., Metzger, W. J., Mi, Y., Mihul, A., Mills, G. B., Mir, Y., Mirabelli, G., Mnich, J., Moller, M., Monteleoni, B., Morand, R., Morganti, S., Moulai, N. E., Mount, R., Muller, S., Nadtochy, A., Nagy, E., Napolitano, Marco, Nessitedaldi, F., Newman, H., Neyer, C., Niaz, M. A., Nippe, A., Nowak, H., Organtini, G., Pandoulas, D., Paoletti, S., Paolucci, P., Pascale, G., Passaleva, G., Patricelli, Sergio, Paul, T., Pauluzzi, M., Paus, C., Pauss, F., Pei, Y. J., Pensotti, S., Perretgallix, D., Perrier, J., Pevsner, A., Piccolo, D., Pieri, M., Piroue, P. A., Plasil, F., Plyaskin, V., Pohl, M., Pojidaev, V., Postema, H., Z. D., Qi, Qian, J. M., Qureshi, K. N., Raghavan, R., Rahalcallot, G., Rancoita, P. G., Rattaggi, M., Raven, G., Razis, P., Read, K., Ren, D., Ren, Z., Rescigno, M., Reucroft, S., Ricker, A., Riemann, S., Riemers, B. C., Riles, K., Rind, O., Rizvi, H. A., Ro, S., Rodriguez, F. J., Roe, B. P., Rohner, M., Romero, L., Rosierlees, S., Rosmalen, R., Rosselet, P., Vanrossum, W., Roth, S., Rubbia, A., Rubio, J. A., Rykaczewski, H., Sachwitz, M., Salicio, J., Salicio, J. M., Sanders, G. S., Santocchia, A., Sarakinos, M. S., Sartorelli, G., Sassowsky, M., Sauvage, G., Schegelsky, V., Schmitz, D., Schmitz, P., Schneegans, M., Schopper, H., Schotanus, D. J., Shotkin, S., Schreiber, H. J., Shukla, J., Schulte, R., Schulte, S., Schultze, K., Schwenke, J., Schwering, G., Sciacca, Crisostomo, Scott, I., Sehgal, R., Seiler, P. G., Sens, J. C., Servoli, L., Sheer, I., Shen, D. Z., Shevchenko, S., Shi, X. R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. C. C., Ting, S. M., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, X. L., Wang, Y. F., Wang, Z. M., Warner, C., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., and B. C. C.
Subjects: Nuclear and High Energy Physics, Top quark, Particle physics, Meson, Electron–positron annihilation, Radiative decay, Elementary particle, flavor changing neutral current, TOP QUARK, 01 natural sciences, Bottom quark, PHYSICS, Nuclear physics, MONTE-CARLO, QCD ENHANCEMENT, 0103 physical sciences, w boson, Electromagnetismo, 010306 general physics, SUPERSYMMETRY, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, Physics, 010308 nuclear & particles physics, Flavor-changing neutral current, Física, Supersymmetry, MESONS, EMISSION, Particle Physics - Experiment
Abstract: We report on the search for the electromagnetic penguin decay b → sγ at √s ≈ mZ. We find no evidence for a signal and place an upper limit on the decay rate Br(b → sγ) < 1.2 × 10−3 at 90% C.L., Facultad de Ciencias Exactas
Published: 1993

35. Determination of the effective electroweak mixing angle from Z decays

Author: R. Fabbretti, H. Anderhub, Lamberto Luminari, Luca Lista, D. Fernandez, Yanwen Liu, S. Pensotti, Valery Schegelsky, E. Dénes, R. Sehgal, Sabine Riemann, Ren-Yuan Zhu, Luciano Barone, F. C. Erné, B. P. Roe, C. Wang, M. MacDermott, R. Weill, Ph Fisher, R. C. Ball, H. Rykaczewski, Giovanni Organtini, G. Sartorelli, Y. Karyotakis, A. L. Anderson, M. A. Niaz, F. Marion, J. F. Zhou, K. Mazumdar, Roberto Castello, Yu. Kamyshkov, P. Extermann, S. Chung, P.V.K.S. Baba, Attilio Santocchia, Jean Fay, Dimitri Bourilkov, C. Neyer, P. Lecomte, I. Leedom, B. Z. Yang, P. Vikas, R. Barillère, M. Dhina, D. Boutigny, Marco Meschini, H. Hofer, C. Warner, A. Arefiev, K. L. Tung, G. B. Mills, A. Lebedev, G. Tsipolitis, R. Klöckner, D. Kirkby, A. Gurtu, P. G. Rancoita, Els Koffeman, H. J. Schreiber, Werner Lustermann, C. G. Yang, B. N. Jin, H. Nowak, A. Krivshich, Steven Ahlen, N. E. Moulai, P. Schmitz, Z. Y. Lin, L. Antonov, T. Kraemer, E. Fiandrini, Dong-Chul Son, J. J. Blaising, Egidio Longo, Y. J. Pei, P. Zemp, J. Bechtluft, R. de Asmundis, K. S. Kumar, E. Brambilla, B. Hartmann, Christopher George Tully, M. M. Ilyas, Roberto Battiston, A. Hasan, P. K. Malhotra, H. A. Rizvi, A. Kunin, G. Herten, A. Bujak, Oliver Kornadt, M. Pohl, Hafeez R Hoorani, Yuehong Xie, F. Fesefeldt, S. Khokhar, S. Müller, K. Freudenreich, J. M. Salicio, K. Sudhakar, D. Pandoulas, T. Spickermann, W. Wallraff, Wolfgang Lohmann, H. Vogt, B. Bertucci, Y. F. Wang, W. Friebel, C-Q. Li, B. L. Betev, S. C. Kim, S. Banerjee, Gerjan Bobbink, W. J. Metzger, M. Caria, V. K. Gupta, Zp Zhang, B. Borgia, G. Sauvage, M. Wadhwa, Z. D. Qi, Xd Cai, Nicanor Colino, Bernard Ille, Z. M. Wang, K. Riles, M. Gruenewald, J. T. He, Tariq Aziz, J. B. Ye, Stefan Kirsch, F. Cesaroni, F. J. Rodriguez, G. Schwering, Pierluigi Paolucci, M. Gailloud, M. Möller, J. Y. Liao, Raffaello D'Alessandro, O. Rind, F. Marzano, G. Coignet, W. Krenz, R. Bizzarri, G. F. Susinno, A. M. Cartacci, R. Raghavan, T. McHamon, A. C. König, Mariagrazia Alviggi, H. R. Gustafson, D. Z. Shen, J. A. Bakken, F. L. Linde, J. Ulbricht, R. Mount, U. K. Chaturvedi, Laurent Vuilleumier, Y. S. Lu, Gianpaolo Carlino, F. DeNotaristefani, M. Sassowsky, J. D. Swain, D. Antreasyan, A. Koulbardis, Harvey B Newman, K. Hilgers, R. Becker, An.A. Vorobyov, M. T. Choi, Emilio Leonardi, S. X. Wu, C. Maña, I. C. Brock, F. Wittgenstein, P. McBride, Leonardo Merola, Giovanni Ambrosi, L. Ludovici, J. H. Field, Crisostomo Sciacca, Marco Pieri, C. Y. Chien, O. Adriani, R. Bock, Francesca Nessi-Tedaldi, Gerard Fernandez, H. Suter, S. Easo, G. H. Wang, I. Vetlitsky, D. DiBitonto, Z. Z. Xu, J. Wenninger, I. Clare, J. Busenitz, V. Plyaskin, Ph. Rosselet, L. Djambazov, M. Vivargent, M. Sachwitz, A. Kirkby, Lucas Taylor, H. El Mamouni, V. Koutsenko, M. Steuer, G. Forconi, J. D. Burger, V. Pojidaev, W. van Rossum, Jozsef Toth, L. Baksay, J. Weber, E. Drago, David Stickland, A. Marin, P. J. Li, Konrad Deiters, Bolek Wyslouch, Chenjie Gu, A. Zichichi, Alberto Aloisio, A. Ricker, T. Azemoon, P. Lebrun, F. Plasil, H. F. Chen, A. Buytenhuijs, P. Arce, Z. F. Gong, Elisabetta Gallo, D. Goujon, P. Berges, M. T. Dova, D. Perret-Gallix, Adrian Biland, G. Rahal-Callot, J. M. Ma, A. Böhm, A. Pevsner, Qi An, BT Bouwens, T. Paul, Marcos Cerrada, H. R. Dimitrov, O. Fackler, X. R. Shi, Felicitas Pauss, Y. Mi, Samuel C.C. Ting, H. O. Cohn, S. C. Tonwar, Frank Filthaut, Thomas Ferguson, Mingshui Chen, S. Rosier-Lees, X. W. Tang, S. J. Fan, Chenliang Wang, Vincenzo Innocente, Maurizio Biasini, A. C. Weber, I. Sheer, L. Urbán, P. A. Piroué, B. Zhou, W. Kittel, P. Le Coultre, F. Ferroni, U. Uwer, Marta Felcini, J. G. Xu, B. C.C. van der Zwaan, Yu. Galaktionov, G. Passaleva, J. A. Rubio, K. Schultze, X. T. Cui, A. Chen, Y. Zeng, M. Fukushima, J. Salicio, M. Lenti, Stefan Roth, A. Kasser, Guofan Hu, Christoph Paus, D. Gele, J. Alcaraz, Elemer Nagy, M. Bosetti, A. Sopczak, D. Lanske, K. Hangarter, Pablo Garcia-Abia, Alain Hervé, A. Nadtochy, M. Pauluzzi, L. Romero, Francesco Becattini, A. Engler, G. Chiefari, S. Shevchenko, A. Bay, S. Reucroft, Wt Lin, J. M. Le Goff, M. Capell, J. C. Sens, Cheng Chen, T. E. Coan, J. G. Branson, D. H. Wright, Carlo Civinini, R. Leiste, B. Monteleoni, F. Sticozzi, M. Maolinbay, G. Mirabelli, G. S. Sanders, M. Fabre, H. Janssen, M. Bourquin, M. Schneegans, D. M. Lee, C. Spartiotis, J. K. Kim, R. Starosta, W. J. Burger, C. Zaccardelli, K. Strauch, G. Raven, S. N. Ganguli, P. G. Seiler, F. Behner, M. Aguilar-Benitez, Andrea Baschirotto, S. Shotkin, D. Ren, R. Morand, D. Luckey, Z. L. Xue, W. W. Kinnison, S. C. Yeh, Gy L. Bencze, Herwig Schopper, Howard A. Stone, E. Gonzalez, Davide Piccolo, Reinhard W. Schulte, Z. W. Yin, H. Kuijten, A. Degré, K. Lübelsmeyer, J. Shukla, M. N. Kienzle-Focacci, R. Rosmalen, H. Postema, M. White, P. Kapinos, P. Duinker, A. A. Syed, Piero Spillantini, C. F. He, U. Vikas, A. Tsaregorodtsev, K. N. Qureshi, S. Goldfarb, S. Lanzano, S. Schulte, M. Rattaggi, A. Gougas, C. Leggett, M. Rescigno, Georgi Sultanov, J. Mnich, T. S. Dai, R. A. Khan, M. Guanziroli, Y. Mir, C. H. Ye, Peter Denes, S. Wynhoff, A. Rubbia, T. Foreman, A. Nippe, D. Duchesneau, Alexander Malinin, B.C. Stringfellow, A. Klimentov, M. Yzerman, V. R. Krastev, J. P. Martin, J. Bao, Y. G. Kim, Paolo Bagnaia, V. P. Andreev, Y. H. Chang, Kenneth Francis Read, E. Shumilov, X. L. Wang, M. Chemarin, George Alverson, Jun Guo, B. Lindemann, V. Shoutko, G. Finocchiaro, J. S. Kapustinsky, B. C. Riemers, G. M. Chen, L. Z. Sun, Marcel Merk, M. Tonutti, Igor Vorobiev, J. Perrier, M. Hebert, Panos A Razis, D. Hauschildt, R. Malik, J. M. Lubbers, Stéphane Jézéquel, Simonetta Gentile, J. Berdugo, Zhuoxiang Ren, D. J. Schotanus, J. M. You, Jianming Qian, G. Hu, G. A. Yang, Carlos Willmott, Speranza Falciano, H. T. Li, T. J. Wenaus, G. Terzi, P. Marchesini, Ming Zeng, D.W. Schmitz, G. Pascale, G.G.G. Massaro, M. Röhner, G. M. Bilei, Andrea Contin, Claudio Luci, Robert Clare, S. Patricelli, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, R. T. Van de Walle, Q. Ye, I. Scott, L. Fredj, M. Napolitano, L. J. Gutay, U. Becker, E. Valente, D. McNally, I. Duran, H. S. Chen, L. Servoli, F. J. Eppling, G. J. Zhou, L. W. Jones, X. Leytens, G. Viertel, D. S. Yan, S. M. Ting, Hans J. Vogel, S. Morganti, J. Schwenke, X. Y. Cui, W. Y. Chen, L. Martinez-Laso, A. Atamanchuk, M. S. Sarakinos, Marcella Diemoz, N. Yunus, G. Gratta, G. Landi, M. L. Brooks, Simone Paoletti, Manjit Kaur, C. Dionisi, Daqiang Zhang, Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. 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R., Shumilov, E., Shoutko, V., Son, D., Sopczak, A., Spartiotis, C., Spickermann, T., Spillantini, P., Starosta, R., Steuer, M., Stickland, D. P., Sticozzi, F., Stone, H., Strauch, K., Stringfellow, B. C., Sudhakar, K., Sultanov, G., Sun, L. Z., Susinno, G. F., Suter, H., Swain, J. D., Syed, A. A., Tang, X. W., Taylor, L., Terzi, G., S. C. C., Ting, S. M., Tonutti, M., Tonwar, S. C., Toth, J., Tsaregorodtsev, A., Tsipolitis, G., Tully, C., Tung, K. L., Ulbricht, J., Urban, L., Uwer, U., Valente, E., Vandewalle, R. T., Vetlitsky, I., Viertel, G., Vikas, P., Vikas, U., Vivargent, M., Vogel, H., Vogt, H., Vorobiev, I., Vorobyov, A. A., Vuilleumier, L., Wadhwa, M., Wallraff, W., Wang, C., Wang, C. R., Wang, G. H., Wang, X. L., Wang, Y. F., Wang, Z. M., Warner, C., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., S. X., Wu, Wynhoff, S., Wyslouch, B., Xie, Y. Y., J. G., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yang, B. Z., Yang, C. G., Yang, G., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zheng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, G. J., Zhou, J. F., Zhu, R. Y., Zichichi, A., B. C. C., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, and IHEF (IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, Hadron, Elementary particle, 7. Clean energy, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, Mixing (physics), Physics, electroweak interaction, 010308 nuclear & particles physics, Electroweak interaction, High Energy Physics::Phenomenology, Física, z boson, Weinberg angle, lcsh:QC1-999, High Energy Physics::Experiment, Particle Physics - Experiment, lcsh:Physics, Lepton
Abstract: The effective electroweak mixing angle sin2θw is measured from the production and decay of the Z boson in e+e- interactions. The data sample corresponds to an integrated luminosity of 18 pb-l with about 420 000 hadronic and 40 000 leptonic Z decays. The mixing angle sin 22θw is determined from several independent measurements: the leptonic and hadronic cross sections, the forward-backward asymmetries of charged leptons and b-quarks, and the z-polarization. The results are found to be in good agreement with each other. The value of sin 22θw from a fit to the asymmetries in a model independent method is 0.2321-4-0.0021 and from a global fit to the data in the Standard Model framework is 0.2328±0.0013., Facultad de Ciencias Exactas
Published: 1993

36. Search for isosinglet neutral heavy leptons in Z0 decays

Author: Simone Paoletti, A. Gougas, Y. J. Pei, R. Malik, A. Kasser, Manjit Kaur, J. M. Lubbers, A. Degré, T. E. Coan, R.L. Sumner, T. Angelov, M. M. Ilyas, Emilio Leonardi, C. Luci, F. Ferroni, Y. Zeng, R. Bock, O. Fackler, A. Engler, R.J. Wu, Jianming Qian, Davide Piccolo, G. Hu, P. Arce, C. Neyer, Zhuoxiang Ren, M. Wadhwa, D. J. Schotanus, D. Goujon, J. M. Ma, G. Schwering, C. Y. Chien, A. M. Cartacci, R. Raghavan, R. Barillère, W. Kittel, J. D. Burger, L.J. Gutay, J. M. You, V. R. Krastev, B. N. Jin, T. Mcmahon, P. Denes, Carlos Willmott, A. C. König, Steven Ahlen, Dimitri Bourilkov, Vincenzo Innocente, D.W. Schmitz, D.N. Mao, D. Kirkby, Laurent Vuilleumier, Robert Clare, Thomas Hebbeker, Paul Lecoq, Bz Yang, S. X. Wu, M. Napolitano, E. Longo, Raffaello D'Alessandro, L. Luminari, H. S. Chen, G. Rahal-Callot, L. Servoli, H. Nowak, M. Rescigno, G. A. Yang, G. Coignet, Y.Y. Xie, H. T. Li, N. E. Moulai, R. Weill, E. Fiandrini, C. Grinnell, H.L. Zhuang, M. Merk, P. Razis, Jiunn-Wei Chen, S.J. Fan, G. Herten, I. Scott, Pierluigi Paolucci, S.C. Kim, K. Schultze, T. Foreman, H. Suter, H.F. Chen, P.G. Seiler, M. Gruenewald, M. Steuer, K. Deiters, M. Fukushima, J. Bao, W. Friebel, W. Wallraff, O. Rind, M. Bocciolini, Z.L. Xue, H. Anderhub, S. Banerjee, Zp Zhang, Hafeez R. Hoorani, Leonardo Merola, M. Hebert, H. Newman, B. P. Roe, P. Vikas, M. Fabre, R. Rosmalen, S C C. Ting, R. Fabbretti, S. S. Gau, P.V.K.S. Baba, T. Azemoon, D. Lanske, J. Shukla, L. Romero, M. Lenti, G. Gratta, A. Nadtochy, I. Sheer, J. M. Le Goff, J. Weber, Z.F. Gong, Wt Lin, R. Y. Zhu, D. Z. Shen, M. Sassowsky, J. A. Rubio, K. Sudhakar, A. L. Anderson, Ying Wu, J. F. Zhou, H. Kuijten, Felicitas Pauss, C.F. He, S. Beingessner, P. Schmitz, K. Freudenreich, M. N. Kienzle-Focacci, K. Hilgers, J. G. Branson, M. Bourquin, D. Duchesneau, David Stickland, D.H. Zhang, D. Wright, D. Son, K. N. Qureshi, Helmut Vogel, Alberto Aloisio, P. Marchesini, J. S. Kapustinsky, Ming Zeng, A. Ricker, S. Goldfarb, M. MacDermott, S. Easo, R. Morand, E. Koffeman, Marcos Cerrada, G.G.G. Massaro, Gianpaolo Carlino, A. Tsaregorodtsev, T. Kramer, J. Behrens, P. Zemp, Oliver Kornadt, M. Pohl, A. Krivshich, V. Plyaskin, M. A. Niaz, G. Sauvage, M. Röhner, R. de Asmundis, M. Sachwitz, Z.Z. Xu, G. Terzi, P. Rosselet, P. Le Coultre, T. Ferguson, Kajari Mazumdar, W. Riemers, I. Duran, B. Bouwens, S. Khokhar, X. J. Yan, S. Müller, G. Forconi, M. Brooks, Gerard Fernandez, C. Maña, F. Marion, J. M. Salicio, G. Organtini, M. Caria, C. J.W.P. Timmermans, P. Extermann, P. Lecomte, A. Kunin, D. Antreasyan, G. H. Wang, K. Hangarter, J. Mnich, B. Ille, Xd Cai, A. Pevsner, U. Herten, W. W. Kinnison, I. Leedom, M. T. Dova, Jozsef Toth, H. Hofer, K. L. Tung, Yueh-Feng Liu, B. L. Betev, J. Lettry, X. W. Tang, J.J. Blaising, X.L. Wang, S. Schulte, A. Koulbardis, Y.F. Mao, A. Rubbia, Mariagrazia Alviggi, G. Mirabelli, B. C.C. van der Zwaan, Elisabetta Gallo, A. Sopczak, J.Y. Liao, P. Berges, R. T. Van de Walle, H. O. Cohn, P. G. Rancoita, E. Valente, T. Paul, U. Uwer, R. Starosta, Tariq Aziz, Yu. Galaktionov, Chenliang Wang, V. Koutsenko, A. Nippe, F. Plasil, L. Barone, J. Salicio, K. Strauch, Qi An, Y. Mir, C. H. Ye, D. Luckey, Gy L. Bencze, Mingshui Chen, D.S. Yan, J.A. Bakken, V. K. Gupta, J. Alcaraz, S. Reucroft, X. T. Cui, Reinhard W. Schulte, J. Busenitz, S. Shotkin, H. Janssen, K.S. Yang, S. Jezequel, G.Q. Hu, P. H. Fisher, G. Finocchiaro, Adrian Biland, M. Pauluzzi, F. de Notaristefani, Y. H. Chang, R. Castello, H. El Mamouni, Luca Lista, P. Kapinos, D. Fernandez, Xu-Guang Li, Q.Y. Yang, George Alverson, D. McNally, Crisostomo Sciacca, Marco Pieri, A. Gurtu, G. Viertel, H. J. Schreiber, S. Falciano, A. Klimentov, L. Antonov, M. Vivargent, Sabine Riemann, X. Leytens, D. Pandoulas, D. Ren, Maurizio Biasini, Kenneth Francis Read, Marta Felcini, Georgi Sultanov, E. Brambilla, T. S. Dai, I. C. Brock, L. Z. Sun, J. C. Sens, Francesco Becattini, M. Diemoz, R. A. Khan, Z.W. Yin, A. Hasan, T. Spickermann, J. Schwenke, H. S. Fesefeldt, P. Bagnaia, T. Driever, U. Vikas, Cheng Chen, X. Y. Cui, W. J. Burger, L. Martinez-Laso, S. N. Ganguli, Z.Q. Yang, A. Contin, E. Gonzalez, Y. D. Xu, Yu. Kamyshkov, J. P. Martin, A. Atamanchuk, V. P. Andreev, F. C. Erné, S. C. Yeh, M. Rattaggi, M. S. Sarakinos, A. Zichichi, D. Perret-Gallix, S. Lanzano, Jorg Wenninger, M. Chemarin, M. Guanziroli, M.L. Chen, R. W. Kraemer, P. Lebrun, G. M. Chen, U. K. Chaturvedi, J. D. Swain, C. G. Yang, Y. S. Lu, Y.G. Kim, S. Rosier-Lees, L. Baksay, Jérôme Rose, A. Arefev, J.K. Guo, J. H. Field, E. Shumilov, V. Shoutko, Stefan Kirsch, C. Li, A. Böhm, L. Urbán, F. J. Rodriguez, H. R. Gustafson, I. Vorobev, X.R. Shi, Y. Mi, T. Matsuda, M. Tonutti, A. C. Weber, A. Bujak, O. Adriani, Zongyuan Wang, A. Chen, Lucas Taylor, S. C. Tonwar, Frank Filthaut, F. Marzano, D.G. Stringfellow, Simonetta Gentile, J. Berdugo, C. Dionisi, K. Lübelsmeyer, Piero Spillantini, T. J. Wenaus, S. Pensotti, Marco Meschini, Christopher George Tully, G. B. Mills, S. Shevchenko, Wolfgang Lohmann, H. Vogt, B. Bertucci, Nicanor Colino, C. Zaccardelli, R. C. Ball, G. Sartorelli, Werner Lustermann, A. A. Syed, D. DiBitonto, A.A. Vorobev, F. Crijns, B. Lindemann, M.T. Choi, J. Perrier, M. Möller, D. Linnhofer, P.J. Li, G. Chiefari, F. Behner, Federico Carminati, Andrea Baschirotto, I. Vetlitskii, G. M. Bilei, D. Gele, S. Patricelli, Q. Ye, D. M. Lee, C. Spartiotis, U. Becker, P. Mcbride, F. J. Eppling, L. W. Jones, M. Capell, S. M. Ting, W. Y. Chen, B. Zhou, G. S. Sanders, N. Yunus, P. Duinker, F. Cesaroni, R. Leiste, B. Monteleoni, F. Sticozzi, M. Gailloud, Howard A. Stone, Roberto Battiston, D. Boutigny, Gerjan Bobbink, J. Ulbricht, E. Dénes, R. Sehgal, B. Borgia, I. Clare, W.G. Ma, P. Göttlicher, J. B. Ye, Christine Buisson, Y. F. Wang, E. Soderstrom, M. Yzerman, S. Röhner, F. Wittgenstein, L. Ludovici, M. Chmeissani, E. Drago, Z.Y. Lin, A. Marin, H. R. Dimitrov, M. Boseti, Pablo Garcia-Abia, Alain Hervé, P. A. Piroué, A. Bay, Carlo Civinini, M. Maolinbay, G. Raven, M. Aguilar-Benitez, R. Bizzarri, Herwig Schopper, M. White, G. Passaleva, D. Hauschildt, E. Sajan, S. Morganti, K. S. Kumar, M. Schneegans, K. Riles, W. Krenz, V. Shchegelskii, J.K. Kim, J.H. Wang, P. K. Malhotra, H. A. Rizvi, W. J. Metzger, E. Nagy, F. L. Linde, H. Rykaczewski, V. Pozhidaev, Y. Karyotakis, S. Chung, G. Tsipolitis, Attilio Santocchia, Jean Fay, M. Dhina, R.B. Sutton, R. Mount, Nicolas Produit, Giovanni Ambrosi, Bolek Wyslouch, A. Malinin, Chenjie Gu, G. Landi, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, IHEF (IoP, FNWI), Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, Alberto, Alverson, G., Alviggi, Mariagrazia, Ambrosi, G., An, Q., Anderhub, H., Anderson, A. L., Andreev, V. P., Angelov, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., Aziz, T., P. V. K., Bagnaia, P., Bakken, J. A., Baksay, L., Ball, R. C., Banerjee, S., Bao, J., Barillere, R., Barone, L., Baschirotto, A., Battiston, R., Bay, A., Becattini, F., Becker, U., Behner, F., Behrens, J., Beingessner, S., Bencze, G. L., Berdugo, J., Berges, P., Bertucci, B., Betev, B. L., Biasini, M., Biland, A., Bilei, G. M., Bizzarri, R., Blaising, J. J., Bobbink, G. J., Bocciolini, M., Bock, R., Bohm, A., Borgia, B., Boseti, M., Bourilkov, D., Bourquin, M., Boutigny, D., Bouwens, B., Brambilla, E., Branson, J. G., Brock, I. C., Brooks, M., Buisson, C., Bujak, A., Burger, J. D., Burger, W. J., Busenitz, J., Cai, X. D., Capell, M., Caria, M., Carlino, G., Carminati, F., Cartacci, A. M., Castello, R., Cerrada, M., Cesaroni, F., Chang, Y. H., Chaturvedi, U. K., Chemarin, M., Chen, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, J., Chen, M., Chen, M. L., Chen, W. Y., Chiefari, Giovanni, Chien, C. Y., Chmeissani, M., Choi, M. T., Chung, S., Civinini, C., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Contin, A., Crijns, F., Cui, X. T., Cui, X. Y., Dai, T. S., Dalessandro, R., Deasmundis, R., Degre, A., Deiters, K., Denes, E., Denes, P., Denotaristefani, F., Dhina, M., Dibitonto, D., Diemoz, M., Dimitrov, H. R., Dionisi, C., Dova, M. T., Drago, E., Driever, T., Duchesneau, D., Duinker, P., Duran, I., Easo, S., Elmamouni, H., Engler, A., Eppling, F. J., Erne, F. C., Extermann, P., Fabbretti, R., Fabre, M., Falciano, S., Fan, S. J., Fackler, O., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J., Filthaut, F., Finocchiaro, G., Fisher, P. H., Forconi, G., Foreman, T., Freudenreich, K., Friebel, W., Fukushima, M., Gailloud, M., Galaktionov, Y., Gallo, E., Ganguli, S. N., Garciaabia, P., Gau, S. S., Gele, D., Gentile, S., Goldfarb, S., Gong, Z. 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L., Wang, Y. F., Wang, Z. M., Weber, A., Weber, J., Weill, R., Wenaus, T. J., Wenninger, J., White, M., Willmott, C., Wittgenstein, F., Wright, D., R. J., Wu, S. X., Wu, Y. G., Wu, Wyslouch, B., Xie, Y. Y., Y. D., Xu, Z. Z., Xu, Xue, Z. L., Yan, D. S., Yan, X. J., Yang, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., C. H., Ye, J. B., Ye, Ye, Q., Yeh, S. C., Yin, Z. W., You, J. M., Yunus, N., Yzerman, M., Zaccardelli, C., Zemp, P., Zeng, M., Zeng, Y., Zhang, D. H., Zhang, Z. P., Zhou, B., Zhou, J. F., Zhu, R. Y., Zhuang, H. L., Zichichi, A., and B. C. C.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, MASS, 01 natural sciences, Standard Model, Nuclear physics, BHABHA SCATTERING, LIMITS, MONTE-CARLO, Gauge group, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, PHOTON CORRECTIONS, Neutrino, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, HIGH-ENERGIES, Bhabha scattering, Lepton
Abstract: We search for neutral heavy leptons that are isosinglets under the standard SU(2)L gauge group. Such neutral heavy leptons are expected in many extensions of the standard model. Three types of heavy leptons Ne, N(mu), N(tau) associated with the three neutrino types nu(e), nu(mu), nu(tau) have been directly searched for and no evidence for a signal has been found. We set the limit Br(Z0 --> nu(l)N(l)) < 3 x 10(-5) at the 95% CL for the mass range from 3 GeV up to m(Z).
Published: 1992

37. Determination of alpha-s from hadronic event shapes measured on the Z0 resonance

Author: B. Monteleoni, F. Sticozzi, C. Spartiotis, R. Morand, Z. L. Xue, Howard A. Stone, Roberto Battiston, Gerjan Bobbink, B. Borgia, J. Ulbricht, I. Clare, J. Busenitz, P. Göttlicher, J. M. Salicio, A. Arefiev, A. Kasser, Guofan Hu, C. Neyer, R. Mount, V. Plyaskin, Y. J. Pei, Raffaello D'Alessandro, M. Vivargent, Stefan Kirsch, B. N. Jin, M. Sachwitz, C. Grinnell, A. M. Cartacci, R. Raghavan, H. Nowak, Z. F. Gong, H. Anderhub, T. E. Coan, J. G. Branson, H. R. Gustafson, U. Herten, M. Bocciolini, M. T. Dova, D.N. Mao, Leonardo Merola, A. C. König, Laurent Vuilleumier, Y. H. Chang, Z. W. Yin, S. N. Ganguli, H. O. Cohn, F. Marzano, G. Coignet, W. Krenz, M. N. Kienzle-Focacci, R. Rosmalen, W. Wallraff, George Alverson, A. Degré, An.A. Vorobyov, T. Matsuda, A. Tsaregorodtsev, J. S. Kapustinsky, M. Gailloud, S. Banerjee, Yongqing Wu, E. Sajan, Samuel C.C. Ting, X. T. Cui, T. Kramer, J. J. Blaising, Tariq Aziz, R. Barillère, T. Azemoon, P. Schmitz, Lucas Taylor, Steven Goldfarb, M. Caria, Steven Ahlen, R. L. Sumner, G. H. Wang, W. Kittel, S. Schulte, K. Schmiemann, Dimitri Bourilkov, A. Koulbardis, D. Linnhofer, G. Herten, Federico Carminati, K. Freudenreich, D. Gele, E. Nagy, J. Wenninger, V. Pojidaev, Marcos Cerrada, W. Friebel, G. M. Bilei, M. Fabre, M. Schneegans, O. Adrian, Yu. Kamyshkov, N. E. Moulai, D. M. Lee, P. Zemp, Mw Gruenewald, V. Koutsenko, E. Fiandrini, Mariagrazia Alviggi, Andrea Contin, D. P. Stickland, S. X. Wu, G. B. Mills, Crisostomo Sciacca, Marco Pieri, D. Z. Shen, J. A. Bakken, J.P. Burq, R. de Asmundis, Y. Mir, C. H. Ye, M. Möller, S. Patricelli, M. Sassowsky, R. Fabbretti, C. G. Yang, G. Sauvage, R.B. Sutton, D. DiBitonto, Yu. Galaktionov, J. Alcaraz, Ph. Rosselet, Atul Gurtu, K. Deiters, M. Steuer, Q. Ye, Wen-Gan Ma, C. Maña, I. Vetlitsky, K. S. Kumar, G. Forconi, Alberto Aloisio, Harvey B Newman, K. Hilgers, H. F. Chen, J. D. Burger, J. Weber, G. Rahal-Callot, D. Fernandez, D. Perret-Gallix, A. Ricker, Yanwen Liu, Adrian Biland, B. P. Roe, W. Y. Chen, Th. Meinholz, B. Zhou, Cheng Chen, W. J. Burger, Sabine Riemann, S. J. Fan, X. W. Tang, I. Sheer, P. A. Piroué, C. Zaccardelli, F. Ferroni, B. C.C. van der Zwaan, W. W. Kinnison, G. Chiefari, S. Shevchenko, K. Schultze, H. Suter, A. Bujak, Oliver Kornadt, M. Pohl, Y. Zeng, A. Krivshich, F. Behner, Pablo Garcia-Abia, Alain Hervé, T. Angelov, D. Lanske, Sc Yeh, R. Malik, L. Romero, H. El Mamouni, A. Engler, I. C. Brock, A. Bay, Wt Lin, J. M. Lubbers, Jianming Qian, G. Hu, B. L. Betev, Carlo Civinini, M. Maolinbay, G. Raven, M. Bourquin, K. Strauch, J. C. Sens, P. Arce, D. Goujon, N. Yunus, G. Gratta, M. Aguilar-Benitez, H. S. Fesefeldt, Egidio Longo, Herwig Schopper, M. White, Zhuoxiang Ren, Carlos Willmott, M. Wadhwa, D. J. Schotanus, J. M. You, Vincenzo Innocente, S. Röhner, Speranza Falciano, Y. F. Wang, N. Produit, V. R. Krastev, F. Wittgenstein, L. Ludovici, M. Chmeissani, H. T. Li, D. Antreasyan, E. Drago, G. A. Yang, L. Niessen, A. Sopczak, L. J. Gutay, Ren-Yuan Zhu, Luciano Barone, Qi An, U. Becker, A. Marin, T. Driever, M. M. Ilyas, A. A. Syed, H. Janssen, Jiunn-Wei Chen, I. Duran, K.S. Yang, M. Rescigno, P. Kapinos, B.C. Stringfellow, H. R. Dimitrov, O. Fackler, L. Urbán, P. Duinker, F. J. Eppling, L. W. Jones, D. S. Yan, M. Yzerman, F. Crijns, S. M. Ting, A. Klimentov, Jun Guo, B. Lindemann, G. Passaleva, E. Dénes, R. Sehgal, G. Finocchiaro, Kenneth Francis Read, Q.Y. Yang, L. Z. Sun, D. Hauschildt, Marcel Merk, J. Perrier, Els Koffeman, R. Weill, C-Q. Li, Yuehong Xie, Christine Buisson, S. S. Gau, T. J. Wenaus, V. K. Gupta, A. L. Anderson, F. Marion, H. J. Schreiber, J. F. Zhou, M. MacDermott, P.V.K.S. Baba, H. L. Zhuang, M. A. Niaz, E. Brambilla, R. Bizzarri, F. DeNotaristefani, A. Hasan, Y. D. Xu, F. Cesaroni, J. Y. Liao, Emilio Leonardi, J. Schütte, P. Berges, R. Bock, L. Baksay, U. K. Chaturvedi, Y. S. Lu, M. Fukushima, M. Lenti, A. Nadtochy, Xiaoli Li, D. Duchesneau, J. M. Le Goff, D. H. Wright, G. S. Sanders, P. G. Seiler, J. A. Rubio, A. Malinin, Jérôme Rose, Kajari Mazumdar, S. Khokhar, T.R. McMahon, X. J. Yan, S. Müller, X. L. Wang, Xd Cai, J. H. Field, C. Y. Chien, J. Behrens, P. J. Li, P. Lebrun, BT Bouwens, U. Uwer, A. Chen, J. Salicio, Maurizio Biasini, Marta Felcini, Francesco Becattini, M. Capell, J. Krizmanic, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Giovanni Organtini, Y. Karyotakis, E. Gonzalez, S. Chung, Attilio Santocchia, Jean Fay, M. Dhina, D. Boutigny, S. Lanzano, P. Vikas, G. Tsipolitis, Z. Y. Lin, L. Antonov, K. Sudhakar, J.H. Wang, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, Y. Mi, J. B. Ye, A. Kunin, Gerard Fernandez, F. Plasil, Mingshui Chen, Hafeez R Hoorani, Jozsef Toth, J. Lettry, Elisabetta Gallo, M. Pauluzzi, Chenliang Wang, S. Reucroft, S. Shotkin, W. J. Metzger, D. Ren, S. C. Tonwar, J. Shukla, M. S. Sarakinos, M.L. Chen, U. Vikas, Frank Filthaut, Marcella Diemoz, M. Guanziroli, Zheng Wang, Giovanni Ambrosi, J. P. Martin, Zhenyu Zhang, E. Valente, D. McNally, A. C. Weber, Bolek Wyslouch, Qian Wang, E. Shumilov, X. R. Shi, V. Shoutko, X. Leytens, G. Viertel, Felicitas Pauss, Chenjie Gu, C. F. He, Marco Meschini, P. Extermann, G. Mirabelli, I. Leedom, B. Z. Yang, H. Hofer, K. L. Tung, S. Rosier-Lees, Hans J. Vogel, S. Morganti, D. Kirkby, D.W. Schmitz, P. Le Coultre, M. Tonutti, J. Schwenke, K. N. Qureshi, G.G.G. Massaro, A. Pevsner, K. Lübelsmeyer, Piero Spillantini, X. Y. Cui, Igor Vorobiev, Claudio Luci, S. Beingessner, Robert Clare, Barry Blumenfeld, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, K. Hangarter, M. Napolitano, M. Hebert, E. Soderstrom, H. S. Chen, L. Servoli, L. Martinez-Laso, Panos A Razis, J. Mnich, A. Atamanchuk, P. Marchesini, R. Starosta, P. Blömeke, D. Luckey, Gy L. Bencze, A. Rubbia, T. Foreman, Ming Zeng, Reinhard W. Schulte, M. Röhner, Christopher George Tully, Stéphane Jézéquel, J. Bao, F. C. Erné, Simonetta Gentile, R.J. Wu, J. Berdugo, Y.F. Mao, Z.Q. Yang, R. T. Van de Walle, Lamberto Luminari, G. Schwering, Wolfgang Lohmann, H. Vogt, B. Bertucci, I. Scott, Nicanor Colino, G. Landi, M. L. Brooks, R. C. Ball, Simone Paoletti, O. Rind, Pierre Lecomte, G. Sartorelli, Charles Timmermans, Manjit Kaur, C. Dionisi, D. Pandoulas, Georgi Sultanov, Fl Linde, T. S. Dai, R. A. Khan, T. Spickermann, V. P. Andreev, Daqiang Zhang, Bernard Ille, M. Chemarin, G. M. Chen, Peter Denes, Paolo Bagnaia, J. D. Swain, P. McBride, T. Fergusson, A. Böhm, R. Leiste, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, O., Adriani, M., Aguilarbenitez, S., Ahlen, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, G., Ambrosi, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, P., Arce, A., Arefiev, A., Atamanchuk, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, R., Barillere, L., Barone, R., Battiston, A., Bay, F., Becattini, U., Becker, F., Behner, J., Behren, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, M., Biasini, A., Biland, G. M., Bilei, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, R., Bock, A., Bohm, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, B., Bouwen, E., Brambilla, J. G., Branson, I. C., Brock, M., Brook, C., Buisson, A., Bujak, J. D., Burger, W. J., Burger, J. P., Burq, J., Busenitz, X. D., Cai, M., Capell, M., Caria, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, J., Chen, M., Chen, M. L., Chen, W. Y., Chen, Chiefari, Giovanni, C. Y., Chien, M., Chmeissani, S., Chung, C., Civinini, I., Clare, R., Clare, T. E., Coan, H. O., Cohn, G., Coignet, N., Colino, A., Contin, F., Crijn, X. T., Cui, X. Y., Cui, T. S., Dai, R., Dalessandro, R., Deasmundi, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, D., Dibitonto, M., Diemoz, H. R., Dimitrov, C., Dionisi, M. T., Dova, E., Drago, T., Driever, D., Duchesneau, P., Duinker, I., Duran, H., Elmamouni, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, M., Fabre, S., Falciano, S. J., Fan, O., Fackler, J., Fay, M., Felcini, T., Ferguson, D., Fernandez, G., Fernandez, F., Ferroni, H., Fesefeldt, E., Fiandrini, J., Field, F., Filthaut, G., Finocchiaro, P. H., Fisher, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, P., Garciaabia, S. S., Gau, D., Gele, S., Gentile, S., Goldfarb, Z. F., Gong, E., Gonzalez, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, C., Gu, M., Guanziroli, J. K., Guo, V. K., Gupta, A., Gurtu, H. R., Gustafson, L. J., Gutay, K., Hangarter, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, H., Janssen, S., Jezequel, B. N., Jin, L. W., Jone, A., Kasser, R. A., Khan, Y., Kamyshkov, P., Kapino, J. S., Kapustinsky, Y., Karyotaki, M., Kaur, S., Khokhar, M. N., Kienzlefocacci, W. W., Kinnison, D., Kirkby, S., Kirsch, W., Kittel, A., Klimentov, A. C., Konig, E., Koffeman, O., Kornadt, V., Koutsenko, A., Koulbardi, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Krivshich, J., Krizmanic, K. S., Kumar, A., Kunin, G., Landi, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D. M., Lee, I., Leedom, J. M., Legoff, R., Leiste, M., Lenti, E., Leonardi, J., Lettry, X., Leyten, C., Li, H. T., Li, P. J., Li, X. G., Li, J. Y., Liao, W. T., Lin, Z. Y., Lin, F. L., Linde, B., Lindemann, D., Linnhofer, Y., Liu, W., Lohmann, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, L., Luminari, W. G., Ma, M., Macdermott, P. K., Malhotra, R., Malik, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, F., Marion, A., Marin, J. P., Martin, L., Martinezlaso, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Mcmahon, D., Mcnally, T., Meinholz, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, M., Moller, B., Monteleoni, R., Morand, S., Morganti, N. E., Moulai, R., Mount, S., Muller, A., Nadtochy, E., Nagy, Napolitano, Marco, H., Newman, C., Neyer, M. A., Niaz, L., Niessen, H., Nowak, G., Organtini, D., Pandoula, S., Paoletti, G., Passaleva, Patricelli, Sergio, M., Pauluzzi, F., Pau, Y. J., Pei, D., Perretgallix, J., Perrier, A., Pevsner, M., Pieri, P. A., Piroue, F., Plasil, V., Plyaskin, M., Pohl, V., Pojidaev, N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, G., Raven, P., Razi, K., Read, D., Ren, Z., Ren, M., Rescigno, S., Reucroft, A., Ricker, S., Riemann, O., Rind, H. A., Rizvi, B. P., Roe, M., Rohner, S., Rohner, L., Romero, J., Rose, S., Rosierlee, R., Rosmalen, P., Rosselet, A., Rubbia, J. A., Rubio, H., Rykaczewski, M., Sachwitz, E., Sajan, J., Salicio, J. M., Salicio, G. S., Sander, A., Santocchia, M. S., Sarakino, G., Sartorelli, M., Sassowsky, G., Sauvage, V., Schegelsky, K., Schmiemann, D., Schmitz, P., Schmitz, M., Schneegan, H., Schopper, D. J., Schotanu, S., Shotkin, H. J., Schreiber, J., Shukla, R., Schulte, S., Schulte, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, I., Scott, R., Sehgal, P. G., Seiler, J. C., Sen, L., Servoli, I., Sheer, D. Z., Shen, S., Shevchenko, X. R., Shi, E., Shumilov, V., Shoutko, E., Soderstrom, A., Sopczak, C., Spartioti, T., Spickermann, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, F., Sticozzi, H., Stone, K., Strauch, B. C., Stringfellow, K., Sudhakar, G., Sultanov, R. L., Sumner, L. Z., Sun, H., Suter, R. B., Sutton, J. D., Swain, A. A., Syed, X. W., Tang, L., Taylor, C., Timmerman, S. C., C., S. M., Ting, M., Tonutti, S. C., Tonwar, J., Toth, A., Tsaregorodtsev, G., Tsipoliti, C., Tully, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. T., Vandewalle, I., Vetlitsky, G., Viertel, P., Vika, U., Vika, M., Vivargent, H., Vogel, H., Vogt, I., Vorobiev, A. A., Vorobyov, L., Vuilleumier, M., Wadhwa, W., Wallraff, C. R., Wang, G. H., Wang, J. H., Wang, Q. F., Wang, X. L., Wang, Y. F., Wang, Z. M., Wang, A., Weber, J., Weber, R., Weill, T. J., Wenau, J., Wenninger, M., White, C., Willmott, F., Wittgenstein, D., Wright, R. J., Wu, S. X., Wu, Y. G., Wu, B., Wyslouch, Y. Y., Xie, Y. D., Xu, Z. Z., Xu, Z. L., Xue, D. S., Yan, X. J., Yan, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., Yang, C. H., Ye, J. B., Ye, Q., Ye, S. C., Yeh, Z. W., Yin, J. M., You, N., Yunu, M., Yzerman, C., Zaccardelli, P., Zemp, M., Zeng, Y., Zeng, D. H., Zhang, Z. P., Zhang, B., Zhou, J. F., Zhou, R. Y., Zhu, H. L., Zhuang, A., Zichichi, B. C., C., and IHEF (IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, LUND MONTE-CARLO, Electron–positron annihilation, TO-BACK JETS, Hadron, Jet (particle physics), 01 natural sciences, Resonance (particle physics), ELECTRON-POSITRON-ANNIHILATION, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Resummation, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Physics, Quantum chromodynamics, QUANTUM CHROMODYNAMICS, 010308 nuclear & particles physics, JET PRODUCTION-RATES, High Energy Physics::Phenomenology, E+E-ANNIHILATION, QCD, FREE PERTURBATION-THEORY, Hadronization, ENERGY CORRELATIONS, Experimental uncertainty analysis, High Energy Physics::Experiment, FRAGMENTATION, Particle Physics - Experiment
Abstract: We present a study of the global event shape variables thrust and heavy jet mass, of energy-energy correlations and of jet multiplicities based on 250 000 hadronic Z 0 decays. The data are compared to new QCD calculations including resummation of leading and next-to-leading logarithms to all orders. We determine the strong coupling constant α s (91.2 GeV) = 0.125±0.003 (exp) ± 0.008 (theor). The first error is the experimental uncertainty. The second error is due to hadronization uncertainties and approximations in the calculations of the higher order corrections.
Published: 1992

38. Search for excited leptons in e+e− interactions at –202 GeV

Author: Michele Guida, B. Smith, S. Braccini, J. G. Branson, W. J. Burger, Michael Dittmar, R. de Asmundis, I. Fisk, S. Villa, Davide Piccolo, S. N. Ganguli, Pàl Hidas, S. Bhattacharya, Xl Wang, A. Buijs, A. Degré, D. Kim, J. D. Swain, L. Z. Sun, A. Böhm, L. Bellucci, A. Rosca, B. Musicar, D. Prokofiev, Luisa Cifarelli, P. Lebrun, L. J. Gutay, An.A. Vorobyov, U. Becker, I. Duran, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, Francesca Cavallari, Jeremy Mans, A. C. Weber, Marcella Diemoz, F. J. Eppling, L. W. Jones, O. Adriani, Imad Baptiste Laktineh, Lucas Taylor, Riccardo Paramatti, Y. Uchida, S. M. Ting, A. Bay, Carlo Civinini, J. P. Martin, M. Acciarri, W. Kittel, G. Mirabelli, H.F. Chen, R. van Gulik, P. Extermann, Salvatore Mele, Christoph Schäfer, H. Hofer, A. Kunin, G. Raven, L. Xia, M. Aguilar-Benitez, O. Grimm, B. P. Roe, K. L. Tung, Herwig Schopper, K. Lübelsmeyer, G. Y. Zhu, E. Shumilov, Guo-Ming Chen, F. L. Linde, T. Angelescu, Minhong Wang, Hafeez R Hoorani, M. P. Sanders, B. L. Betev, Subir Sarkar, H. Postema, F. Brochu, V. K. Gupta, S. X. Wu, M. Kopal, E. Valente, Inkyu Park, M. Steuer, V. Shoutko, A. Buffini, R. Barillère, M. A. Rahaman, D. Perret-Gallix, D. della Volpe, Lamberto Luminari, Claudia Cecchi, Samuel C.C. Ting, G. Ruggiero, A. Chen, D. van Dierendonck, J. Salicio, M. W. Gruenewald, G. Ambrosi, I. Josa-Mutuberria, M. Kräber, M. Musy, J. Casaus, R. Berbeco, G. Forconi, M. Pohl, Z. A. Liu, A. Vorvolakos, Zhidong Zhang, W. J. Metzger, R. Leiste, Christoph Paus, Pierre Lecomte, L. Lugnier, G. Viertel, A. Arefiev, S. Sushkov, H. Milcent, A. Oulianov, Zhenghao Xu, C. Palomares, A. Lebedev, Dong-Chul Son, H. El Mamouni, A. Ewers, Z. Szillasi, Gianpaolo Carlino, F. DeNotaristefani, V. Koutsenko, Werner Lustermann, Charles Timmermans, M. Dierckxsens, A. Malinin, C. G. Yang, J. Pothier, Yu. Zalite, S. V. Baldew, D. O. Prokofiev, R. R. McNeil, T. Paul, P. Wienemann, Georgi Sultanov, T. S. Dai, R. A. Khan, G. Holzner, K. Riles, F. Marzano, G. Coignet, W. Krenz, Jozsef Toth, Claudio Luci, D. Pandoulas, M. Rescigno, M. Pauluzzi, S. Saremi, D. Haas, Yu. Galaktionov, J. Alcaraz, J. J. Blaising, J. Hirschfelder, H.J. Lee, Stefano Giagu, A. M. Cartacci, Hans J. Vogel, W. T. Lin, Jasper Kirkby, M. A. Falagan, A. C. König, S. Vlachos, J.V. Allaby, S. Patricelli, D. Ren, E. Delmeire, U. K. Chaturvedi, Y. S. Lu, M. Fabre, B. Tellili, M. Zöller, Stefan Roth, Anna Katharina Kopp, Vladimir Andreev, D. Hatzifotiadou, T. Moulik, Laszlo Boldizsar, S. Costantini, A. Shvorob, J. Rodin, Egidio Longo, Igor Vorobiev, Mariagrazia Alviggi, P. Levtchenko, V. Plyaskin, D. Dufournaud, Ya Han Hu, T. Niessen, Mingming Yang, J. H. Field, A. Bajo, Panos A Razis, A. Mihul, M. Vivargent, G. Alemanni, C. Li, I. Vetlitsky, M. Chemarin, N. Cavallo, C. H. Lin, V. Pojidaev, F. C. Erné, B. Stoyanov, A. Balandras, J. M. Le Goff, J. Yamamoto, Bz Yang, A. Barczyk, Oleg Fedin, S. Schmidt-Kaerst, S. Pensotti, Valery Schegelsky, Antonino Zichichi, N. Gheordanescu, J. Berdugo, G. Grenier, S. C. Yeh, Adrian Biland, D. Kiss, D. P. Stickland, Y. H. Chang, Alexei Raspereza, M. T. Dova, G. M. Chen, J. A. van Dalen, E. J. Sanchez, Ren-Yuan Zhu, Manas Maity, K. Freudenreich, Peter H. Fisher, J. A. Rubio, A. Straessner, Luca Lista, M. Pedace, A. Krüger, Alessandra Doria, P. Berges, L. Romero, A. Gurtu, H. Rykaczewski, Giovanni Organtini, H. Wilkens, S. Reucroft, Max Weber, D. Käfer, Raffaello D'Alessandro, N. Batalova, S. Cucciarelli, C. Maña, Aleandro Nisati, Sabine Riemann, I. Vodopianov, A. Engler, A. Hasan, Peter Denes, Leonardo Merola, M. Capell, H. K. Park, L. Tauscher, H. S. Fesefeldt, E. Pistolesi, Joseph Quartieri, T. Azemoon, S. R. Hou, M. Wadhwa, D. J. Schotanus, Kajari Mazumdar, Roberto Battiston, M. Bourquin, P. Raics, X. D. Cai, Paolo Bagnaia, F. Pierella, Federico Cindolo, Marcos Cerrada, Aaron Dominguez, Gerjan Bobbink, G. Castellini, B. Borgia, F. Cesaroni, Jean Fay, P. Achard, Maurizio Biasini, J. Ulbricht, Felicitas Pauss, S. C. Tonwar, Frank Filthaut, S. Rosier-Lees, P. Le Coultre, Pierluigi Paolucci, Z. F. Gong, M. Basile, G. Chiefari, S. Shevchenko, G. Zilizi, Thomas Ferguson, F. Behner, Marta Felcini, S. C. Blyth, Marco Meschini, D. Mangeol, G. Cara Romeo, K. Sudhakar, Christopher George Tully, D. Luckey, G. Schwering, Wolfgang Lohmann, Francesca Nessi-Tedaldi, L. Baksay, F. Cotorobai, H. Vogt, B. Bertucci, F. Anselmo, Nicanor Colino, I. Clare, Giovanni Passaleva, J. D. Burger, T. Siedenburg, M. von der Mey, G. Rahal-Callot, N. Raja, G. Marian, Francesco Becattini, J. B. Ye, M. N. Kienzle-Focacci, A. Csilling, M. Lebeau, H. Suter, Ia Iashvili, H. J. Yang, R. Ofierzynski, C. Furetta, S. Likhoded, S. Wynhoff, C. Rosenbleck, W.G. Ma, T. Sztaricskai, J. K. Kim, Tariq Aziz, An. Zalite, J. Mnich, A. Favara, Zheng Wang, P. Ladron de Guevara, Crisostomo Sciacca, Marco Pieri, P. G. Rancoita, B. N. Jin, H. Nowak, D. Vicinanza, Dimitri Bourilkov, P. Spillantini, B. Petersen, E. Fiandrini, Gyorgy Vesztergombi, Luca Malgeri, A. De Salvo, P. Bartalini, W. Wallraff, A. Seganti, Harvey B Newman, S. Banerjee, B. Zimmermann, Konrad Deiters, G. B. Mohanty, Alberto Aloisio, X. W. Tang, P. Duinker, G. Landi, P. A. Piroué, Simonetta Gentile, M. Chamizo, Simone Paoletti, A. Klimentov, A. J.M. Muijs, Sw. Banerjee, Manjit Kaur, R. Ranieri, B. De La Cruz, P. Déglon, Speranza Falciano, R. Ramelli, D.W. Schmitz, S. S. Gau, P. de Jong, N. Shivarov, M. Gataullin, Robert Clare, A. Stone, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, D. Duchesneau, H. S. Chen, L. Servoli, G.S. Muanza, and H. Anderhub
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, 7. Clean energy, 01 natural sciences, Pair production, Excited state, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Lepton
Abstract: Excited leptons are searched for using the L3 detector at LEP. The data collected at centre-of-mass energies in the range from 192 up to 202 GeV correspond to a total luminosity of 233 pb−1. No evidence of either pair production of excited leptons, nor of single production is found. From the searches for pair produced excited leptons, lower mass limits close to the kinematic limit are set. From the searches for singly produced excited leptons, upper limits on their couplings are derived in the mass range up to 200 GeV.
Published: 2001

39. Study of Z boson pair production in e+e− interactions at –202 GeV

Author: G. Mirabelli, H.F. Chen, K. Lübelsmeyer, A. Buffini, B. Zimmermann, F. Cesaroni, Konrad Deiters, W. J. Burger, Michael Dittmar, Y. Uchida, G. B. Mohanty, J. D. Swain, Alberto Aloisio, M.E. Sarakinos, A. Böhm, Zhenghao Xu, A. Lebedev, Dong-Chul Son, Dimitri Bourilkov, Minhong Wang, M. P. Sanders, B. L. Betev, G. Landi, V. Plyaskin, Lamberto Luminari, P. Spillantini, H. Anderhub, Pierre Lecomte, Werner Lustermann, M. Dierckxsens, J. Hirschfelder, Stefano Giagu, A. Malinin, B. Petersen, G. Ambrosi, Raffaello D'Alessandro, R. Leiste, Christoph Paus, F. C. Erné, M. Rescigno, L. Baksay, F. Cotorobai, X. W. Tang, H. K. Park, Mariagrazia Alviggi, P. A. Piroué, Leonardo Merola, P. Wienemann, G. Castellini, M. Chamizo, Alexei Raspereza, M. T. Dova, Georgi Sultanov, Simone Paoletti, E. Fiandrini, Gyorgy Vesztergombi, A. De Salvo, S. X. Wu, T. S. Dai, B. Musicar, Michele Guida, B. Smith, S. Braccini, A. J.M. Muijs, P. Bartalini, T. Angelescu, M. Kopal, Z. F. Gong, G. Forconi, M. Pohl, R. A. Khan, L. Tauscher, Jozsef Toth, A. Seganti, Harvey B Newman, Inkyu Park, J. Casaus, W.G. Ma, Tariq Aziz, M. Della Pietra, T. Sztaricskai, T. Azemoon, L. Malgeri, M. Steuer, K. Freudenreich, Z. A. Liu, A. Vorvolakos, Sw. Banerjee, Manjit Kaur, R. de Asmundis, I. Fisk, Claudio Luci, D. Pandoulas, E. Delmeire, S. S. Gau, D. Kim, U. K. Chaturvedi, M. Vivargent, Marcos Cerrada, An. Zalite, C. G. Yang, M. Chemarin, N. Cavallo, R. Barillère, S. Saremi, J. Pothier, Yu. Zalite, G. M. Chen, W. Kittel, M. A. Rahaman, D. Perret-Gallix, Francesco Conventi, B. P. Roe, S. Cucciarelli, Zhidong Zhang, C. Maña, Y. S. Lu, A. Oulianov, L. Lugnier, Marcella Diemoz, G. Grenier, H. El Mamouni, Roberto Battiston, Yu. Galaktionov, A. Arefiev, Crisostomo Sciacca, J.V. Allaby, Subir Sarkar, Marco Pieri, J. Alcaraz, S. V. Baldew, R. R. McNeil, S. Patricelli, J. A. van Dalen, Gerjan Bobbink, G. Schwering, Maurizio Biasini, D. O. Prokofiev, J. M. Le Goff, J. Yamamoto, B. Borgia, A. Shvorob, S. Reucroft, Jasper Kirkby, M. A. Falagan, M. Gataullin, J. Ulbricht, N. Gheordanescu, Marta Felcini, F. Brochu, D. della Volpe, Aleandro Nisati, B. Tellili, P. G. Rancoita, M. Zöller, Joseph Quartieri, Anna Katharina Kopp, E. Valente, B. N. Jin, Bz Yang, Oleg Fedin, J. A. Rubio, H. Nowak, D. Vicinanza, Max Weber, An.A. Vorobyov, Egidio Longo, S. Vlachos, G. Holzner, K. Riles, Francesco Becattini, D. Hatzifotiadou, Laszlo Boldizsar, M. Fabre, J. Rodin, G. Cara Romeo, J. H. Field, A. Mihul, O. Adriani, G. Alemanni, A. Stone, Mingming Yang, T. Niessen, Imad Baptiste Laktineh, Lucas Taylor, C. Li, I. Clare, F. Marzano, G. Coignet, W. Krenz, Aaron Dominguez, Felicitas Pauss, W. Wallraff, G. Viertel, S. Banerjee, S. C. Yeh, B. Stoyanov, Kajari Mazumdar, S. Schmidt-Kaerst, X. D. Cai, H. J. Yang, Hans J. Vogel, R. Ofierzynski, Samuel C.C. Ting, P. Le Coultre, G. Chiefari, M. Basile, S. Shevchenko, W. T. Lin, F. Behner, R. Ramelli, Ren-Yuan Zhu, D. Mangeol, M. N. Kienzle-Focacci, P. Duinker, K. Sudhakar, S. Likhoded, S. Costantini, Alessandra Doria, D. Luckey, Simonetta Gentile, M. W. Gruenewald, D.W. Schmitz, R. van Gulik, M. Pedace, S. Wynhoff, C. J.W.P. Timmermans, A. Csilling, M. von der Mey, I. Josa-Mutuberria, M. Kräber, P. Extermann, P. de Jong, N. Shivarov, Salvatore Mele, M. Musy, T. Paul, V. K. Gupta, A. Klimentov, M. Lebeau, Christoph Schäfer, H. Hofer, J. B. Ye, Robert Clare, A. Gurtu, L. J. Gutay, D. Kiss, K. L. Tung, R. Berbeco, Thomas Hebbeker, U. Becker, Gianpaolo Carlino, F. DeNotaristefani, Paul Lecoq, R. W. Kraemer, M. Napolitano, J. G. Branson, S. Villa, I. Duran, R. Ranieri, D. Duchesneau, H. S. Chen, A. Hasan, Ya Han Hu, Manas Maity, P. Raics, L. Servoli, G.S. Muanza, Davide Piccolo, H. Vogt, B. De La Cruz, P. Berges, S. N. Ganguli, F. J. Eppling, L. W. Jones, P. Lebrun, M. Pauluzzi, P. H. Fisher, A. Degré, Jeremy Mans, G. Zilizi, J. J. Blaising, H.J. Lee, S. M. Ting, P. Déglon, Speranza Falciano, M. Acciarri, Guo-Ming Chen, A. Bajo, D. Ren, A. M. Cartacci, A. C. König, F. L. Linde, Pàl Hidas, S. Bhattacharya, Xl Wang, G. Ruggiero, A. Chen, D. van Dierendonck, J. Salicio, I. Vetlitsky, A. Krüger, D. Dufournaud, A. Barczyk, C. H. Lin, V. Pojidaev, Adrian Biland, L. Z. Sun, C. Furetta, A. Straessner, Luca Lista, Igor Vorobiev, P. Levtchenko, Z. Szillasi, C. Palomares, Panos A Razis, Sabine Riemann, D. Prokofiev, Luisa Cifarelli, V. Koutsenko, I. Vodopianov, A. Engler, M. Capell, A. Favara, Zheng Wang, H. S. Fesefeldt, E. Pistolesi, A. Balandras, J. Berdugo, L. Bellucci, A. Rosca, E. J. Sanchez, Francesca Cavallari, Pierluigi Paolucci, J. P. Martin, P. Ladron de Guevara, G. Y. Zhu, E. Shumilov, V. Shoutko, Claudia Cecchi, J. K. Kim, C. Dionisi, Giovanni Passaleva, Pablo Garcia-Abia, Alain Hervé, A. Bay, Carlo Civinini, G. Raven, L. Xia, M. Aguilar-Benitez, O. Grimm, Herwig Schopper, H. Postema, A. Buijs, L. Romero, F. Pierella, Federico Cindolo, Riccardo Paramatti, M. Bourquin, A. Kunin, Joachim Mnich, Hafeez R Hoorani, P. Achard, S. C. Tonwar, W. J. Metzger, S. R. Hou, Frank Filthaut, Francesca Nessi-Tedaldi, M. Wadhwa, D. J. Schotanus, J. D. Burger, Thomas Ferguson, T. Siedenburg, G. Rahal-Callot, N. Raja, G. Marian, D. Haas, S. Pensotti, Valery Schegelsky, Antonino Zichichi, H. Suter, Ia Iashvili, H. Rykaczewski, Giovanni Organtini, Vladimir Andreev, H. Milcent, H. Wilkens, S. Rosier-Lees, Jean Fay, T. Moulik, D. P. Stickland, Y. H. Chang, Peter Denes, Paolo Bagnaia, S. C. Blyth, Marco Meschini, Christopher George Tully, Wolfgang Lohmann, B. Bertucci, F. Anselmo, Nicanor Colino, and A. C. Weber
Subjects: Physics, Quark, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, 7. Clean energy, Standard Model, Nuclear physics, Cross section (physics), Pair production, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: The cross section for the production of Z boson pairs is measured using the data collected by the L3 detector at LEP in 1999 in e^+e^- collisions at centre-of-mass energies ranging from 192 GeV up to 202 GeV. Events in all the visible final states are selected, measuring the cross section of this process. The special case of final states containing b quarks is also investigated. All results are in agreement with the Standard Model predictions.
Published: 2001

40. A measurement of the Z0 leptonic partial widths and the vector and axial vector coupling constants

Author: Aa Vorobyov, Francesco Marzano, T. Angelov, J.M. Qian, Philip Kaaret, A. Engler, N. Smirnov, W. Krenz, G. Hu, J.M. Thenard, A.M. Cartacci, Carlos Willmott, L. Ludovici, H.R. Dimitrov, L. Urbàn, V. Plyaskin, U. Becker, G. Rahal-Callot, D.N. Mao, C. Souyri, E. Thomas, Sandra Consuegra Rodríguez, H. T. Li, R.J. Wu, F. J. Eppling, D. S. Yan, S.S. Gau, An.A. Vorobyov, T. Matsuda, F. Cesaroni, L. Leistam, S. M. Ting, Federico Carminati, M. Gailloud, M.L. Chen, Yu. Galaktionov, L. Baksay, K. Schultze, V.G. Shevchenko, Boleslaw Wyslouch, H.J. Schreiber, C.Y. Chien, H.F. Chen, Y.P. Tong, P.G. Seiler, J. Alcaraz, S. Patricelli, E. Tarkovsky, A. Heavey, Q. Ye, V. Schegelsky, M. Gettner, D. Lanske, O. Adriani, G.Q. Hu, T. Kramer, J.C. Sens, Peter Denes, M. Sachwitz, C. Maña, Qi An, S. Lökös, R. Raghavan, Marcella Diemoz, Paolo Bagnaia, J. J. Blaising, T. Ferguson, M. G. Alviggi, K.S. Yang, Samuel C.C. Ting, Th. Rombach, J. P. Burq, G. Von Dardel, K. N. Qureshi, Steven Goldfarb, Marco Meschini, D. Kirkby, J. Schütte, G. Landi, F.G. Hartjes, Laurent Vuilleumier, U. Herten, T. Böhringer, X.R. Shi, D.W. Schmitz, B. N. Jin, H. Haan, Simonetta Gentile, E. Isiksal, D.H. Zhang, Igor Vorobiev, Lamberto Luminari, Y. Peng, S. Schulte, C. Pols, P. Marchesini, B. Stöhr, Ming Zeng, P. Vikas, R. Leiste, Robert Clare, X. Lue, M. Röhner, S. C. Yeh, Antonino Zichichi, J.M. Lubbers, F. Bruyant, V. Morgunov, T. Foreman, Kenneth Francis Read, Egidio Longo, U. K. Chaturvedi, H. Rykaczewski, D. Harting, Thomas Hebbeker, Panos A Razis, Y.J. Pei, Y. S. Lu, Paul Lecoq, G. Conforto, J. Fehlmann, I. Vetlitsky, P. Blömeke, R. L. Sumner, W. Ruckstuhl, S. Rosier-Lees, T. Riemann, M. Napolitano, P. Schmitz, B. Bertucci, Alexei Klimentov, K. Deiters, D. Zhang, D. P. Stickland, P. Le Coultre, Yu. Kamyshkov, R.C. Ball, Adrian Biland, G. Schwering, J. Ulbricht, Raffaello D'Alessandro, Dimitri Bourilkov, C. Camps, Nicanor Colino, L. Zehnder, Y.F. Mao, H. Vogt, R. T. Van de Walle, S. X. Wu, A. Gordeev, M. Micke, Lawrence W. Jones, J. Wenninger, Y. Karyotakis, K. Sudhakar, Y. Mir, C. H. Ye, G. Fernandez, G. H. Wang, K. Hangarter, H. S. Chen, Helmut Vogel, Oliver Kornadt, M. Pohl, R. Liu, Mw Gruenewald, R. Starosta, V. Pojidaev, Jérôme Rose, R. Wilhelm, C. Grinnell, Y. Mi, K. Freudenreich, Leonardo Merola, K.D. Shmakov, S. J. Fan, W. Walk, S. Banerjee, Zp Zhang, Ph. Rosselet, G. J. Bobbink, M. M. Ilyas, Pierre Lecomte, Wesley James Metzger, L.S. Hsu, L. Montanet, D. Luckey, Gy L. Bencze, G. Herten, J. P. Martin, B. Spiess, J.Y. Liao, P.V.K.S. Baba, M. Steuer, J. Onvlee, M. Bourquin, C. G. Yang, I. C. Brock, C. Chen, X. D. Cai, G. Forconi, J. Weber, Z.Q. Yang, E. Valente, M. Chemarin, E. Perrin, K. Strauch, Tariq Aziz, W. Friebel, G. Faber, M. Fabre, Corinne Goy, B. Borgia, V. Lalieu, T.J. Wenaus, S. L. Wu, Speranza Falciano, Vincenzo Innocente, R. Fabbretti, T. Azemoon, Patricia McBride, S. Morganti, Jd Burger, M. Capell, Georgi Sultanov, Jozsef Toth, Charles Timmermans, A. Kuhn, R. A. Khan, H. Akbari, G. Sauvage, V. Koutsenko, Z.Z. Xu, Gaihe Yang, J. Lettry, Claudio Luci, Suresh C Tonwar, R. Weill, G.B. Mills, A. Malinin, Mingshui Chen, M. Dhina, A. van Laak, Qun Wang, R. Dolin, Marcos Cerrada, D. Perret-Gallix, H. S. Fesefeldt, Axel König, D. J. Schotanus, J. A. Bakken, Elisabetta Gallo, R.B. Sutton, W. Lohmann, P. Lebrun, V. P. Andreev, X. L. Wang, E. Jagel, Crisostomo Sciacca, Yanwen Liu, P. J. Li, J. Schwenke, X. Y. Cui, Fridolin Dittus, J. Fay, Marco Pieri, Chenliang Wang, M. Fukushima, P. Schmitt, M. Glaubman, K. Mazumbar, G. M. Chen, S. Reucroft, Harvey B Newman, K. Hilgers, D. Güsewell, A. Chen, M. Vollmar, F. Ferroni, I. Clare, W. Wallraff, D. Wright, H. Fenker, D. Antreasyan, J. M. Le Goff, Alberto Aloisio, S. Beingessner, A. Grimes, Y. Zeng, Z.F. Gong, Th. Meinholz, S.Y. Zhang, A. L. Anderson, J. A. Rubio, P. Göttlicher, J.H. Wang, J. Mnich, P. K. Malhotra, D. Ren, Ying Wu, X. W. Tang, J. G. Branson, J. Von Rango, I. Sheer, J. F. Zhou, M. Herbert, K. Lübelsmeyer, Piero Spillantini, P. A. Piroué, G. Viertel, A. Kunin, P. Duinker, M. MacDermott, Z. W. Yin, S. N. Ganguli, H. van der Graaf, C. Rippich, B. L. Betev, A. Degré, Giovanni Paternoster, J. Bao, U. Uwer, D. Kaplan, A. Contin, Alexander Savin, G. Morand, M. Elkacimi, P. Extermann, I. Leedom, H. Hofer, K. L. Tung, R. Morand, Z. L. Xue, Howard A. Stone, D. Pandoulas, J. Salicio, T.S. Dai, Y. H. Chang, George Alverson, T. Spickermann, S. Kwan, Ren-Yuan Zhu, Luciano Barone, Vineet Kumar, M. Guanziroli, R. Magahiz, G.G.G. Massaro, F. Carbonara, F.C. Erné, Q.Y. Yang, L. Martinez, A. Gurtu, F. L. Linde, V. Commichau, A. Böhm, G. Coignet, E. Shumilov, J. Zoll, M. Bocciolini, J. H. Field, M. Schöntag, W. Böhlen, V. Shoutko, Luciano Romero, C. F. He, Giorgio Gratta, A. Pevsner, M. Tonutti, Barry Blumenfeld, L. Antonov, A. Marchionni, V.R. Krastev, E. Gonzalez, B. Ille, S. Lanzano, Bernardo Adeva, R. W. Kraemer, V. Khoze, C-Q. Li, R. Bizzarri, S. Hancke, F. DeNotaristefani, P. Berges, M. Maire, L. Li, D. Boutigny, J.F. Li, H. Suter, Y.F. Wang, U. Micke, D. Linnhofer, R. Mount, W.D. Nowak, J. Berdugo, B. Monteleoni, W. Kittel, G. Chiefari, S. Shevchenko, M. Schneegans, R. Schulte, Zhuoxiang Ren, J. M. You, N. Produit, A. A. Syed, K. Lanius, F. Crijns, Marcel Merk, J. Perrier, C. Zabounidis, D. Goujon, Bz Yang, A. Sopczak, X. Leytens, H. Anderhub, C. Dionisi, Alain Hervé, G. Mirabelli, A. Bay, D. Campana, Carlo Civinini, M. Maolinbay, X.G. Li, M. Aguilar-Benitez, I. Duran, P. F. Klok, Herwig Schopper, M. White, Petr Levchenko, F. Wittgenstein, E. Drago, L. Niessen, Z.Y. Lin, T. Driever, M. Harris, E. Dénes, B. P. Roe, W.G. Ma, E. Nagy, M. Vivargent, Christine Buisson, Z. M. Wang, A. Arefiev, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), L3, IHEF (IoP, FNWI), B., Adeva, O., Adriani, M., Aguilarbenitez, H., Akbari, J., Alcaraz, Aloisio, Alberto, G., Alverson, Alviggi, Mariagrazia, Q., An, H., Anderhub, A. L., Anderson, V. P., Andreev, T., Angelov, L., Antonov, D., Antreasyan, A., Arefiev, T., Azemoon, T., Aziz, P. V., K., P., Bagnaia, J. A., Bakken, L., Baksay, R. C., Ball, S., Banerjee, J., Bao, L., Barone, A., Bay, U., Becker, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, A., Biland, R., Bizzarri, J. J., Blaising, P., Blomeke, B., Blumenfeld, G. J., Bobbink, M., Bocciolini, W., Bohlen, A., Bohm, T., Bohringer, B., Borgia, D., Bourilkov, M., Bourquin, D., Boutigny, J. G., Branson, I. C., Brock, F., Bruyant, C., Buisson, J. D., Burger, J. P., Burq, X. D., Cai, D., Campana, C., Camp, M., Capell, F., Carbonara, F., Carminati, A. M., Cartacci, M., Cerrada, F., Cesaroni, Y. H., Chang, U. K., Chaturvedi, M., Chemarin, A., Chen, C., Chen, G. M., Chen, H. F., Chen, H. S., Chen, M., Chen, M. L., Chen, Chiefari, Giovanni, C. Y., Chien, C., Civinini, I., Clare, R., Clare, G., Coignet, N., Colino, V., Commichau, G., Conforto, A., Contin, F., Crijn, X. Y., Cui, T. S., Dai, R., Dalessandro, A., Degre, K., Deiter, E., Dene, P., Dene, F., Denotaristefani, M., Dhina, M., Diemoz, H. R., Dimitrov, C., Dionisi, F., Dittu, R., Dolin, E., Drago, T., Driever, P., Duinker, I., Duran, M., Elkacimi, A., Engler, F. J., Eppling, F. C., Erne, P., Extermann, R., Fabbretti, G., Faber, S., Falciano, S. J., Fan, M., Fabre, J., Fay, J., Fehlmann, H., Fenker, T., Ferguson, G., Fernandez, F., Ferroni, H., Fesefeldt, J., Field, G., Forconi, T., Foreman, K., Freudenreich, W., Friebel, M., Fukushima, M., Gailloud, Y., Galaktionov, E., Gallo, S. N., Ganguli, S. S., Gau, S., Gentile, M., Gettner, M., Glaubman, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, C., Goy, G., Gratta, A., Grime, C., Grinnell, M., Gruenewald, M., Guanziroli, A., Gurtu, D., Gusewell, H., Haan, S., Hancke, K., Hangarter, M., Harri, D., Harting, F. G., Hartje, C. F., He, A., Heavey, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, L. S., Hsu, G., Hu, G. Q., Hu, B., Ille, M. M., Ilya, V., Innocente, E., Isiksal, E., Jagel, B. N., Jin, L. W., Jone, P., Kaaret, R. A., Khan, Y., Kamyshkov, D., Kaplan, Y., Karyotaki, V., Khoze, D., Kirkby, W., Kittel, A., Klimentov, P. F., Klok, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Kuhn, V., Kumar, A., Kunin, S., Kwan, A., Vanlaak, V., Lalieu, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, J., Lettry, P. M., Levchenko, X., Leyten, C., Li, H. T., Li, J. F., Li, L., Li, P. J., Li, X. G., Li, J. Y., Liao, R., Liu, Y., Liu, Z. Y., Lin, F. L., Linde, D., Linnhofer, W., Lohmann, S., Loko, E., Longo, Y. S., Lu, J. M., Lubber, K., Lubelsmeyer, C., Luci, D., Luckey, L., Ludovici, X., Lue, L., Luminari, W. G., Ma, M., Macdermott, R., Magahiz, M., Maire, P. K., Malhotra, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, A., Marchionni, J. P., Martin, L., Martinez, F., Marzano, G. G., G., T., Matsuda, K., Mazumdar, P., Mcbride, T., Meinholz, M., Merk, Merola, Leonardo, M., Meschini, W. J., Metzger, Y., Mi, M., Micke, U., Micke, G. B., Mill, Y., Mir, G., Mirabelli, J., Mnich, L., Montanet, B., Monteleoni, G., Morand, R., Morand, S., Morganti, V., Morgunov, R., Mount, E., Nagy, Napolitano, Marco, H., Newman, L., Niessen, W. D., Nowak, J., Onvlee, D., Pandoula, Paternoster, Giovanni, Patricelli, Sergio, Y. J., Pei, Y., Peng, D., Perretgallix, J., Perrier, E., Perrin, A., Pevsner, M., Pieri, P. A., Piroue, V., Plyaskin, M., Pohl, V., Pojidaev, C. L., A., N., Produit, J. M., Qian, K. N., Qureshi, R., Raghavan, G., Rahalcallot, J., Vonrango, P., Razi, K., Read, D., Ren, Z., Ren, S., Reucroft, T., Riemann, C., Rippich, S., Rodriguez, B. P., Roe, M., Rohner, T., Rombach, L., Romero, J., Rose, S., Rosierlee, P., Rosselet, J. A., Rubio, W., Ruckstuhl, H., Rykaczewski, M., Sachwitz, J., Salicio, G., Sauvage, A., Savin, V., Schegelsky, P., Schmitt, D., Schmitz, P., Schmitz, M., Schneegan, M., Schontag, H., Schopper, D. J., Schotanu, H. J., Schreiber, R., Schulte, S., Schulte, K., Schultze, J., Schutte, J., Schwenke, G., Schwering, Sciacca, Crisostomo, P. G., Seiler, J. C., Sen, I., Sheer, V., Shevchenko, S., Shevchenko, X. R., Shi, K., Shmakov, V., Shoutko, E., Shumilov, N., Smirnov, A., Sopczak, C., Souyri, T., Spickermann, B., Spie, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, B., Stohr, H., Stone, K., Strauch, K., Sudhakar, G., Sultanov, R. L., Sumner, H., Suter, R. B., Sutton, A. A., Syed, X. W., Tang, E., Tarkovsky, J. M., Thenard, E., Thoma, C., Timmerman, S. C., C., S. M., Ting, Y. P., Tong, M., Tonutti, S. C., Tonwar, J., Toth, K. L., Tung, J., Ulbricht, L., Urban, U., Uwer, E., Valente, R. T., Vandewalle, H., Vandergraaf, I., Vetlitsky, G., Viertel, P., Vika, M., Vivargent, H., Vogel, H., Vogt, M., Vollmar, G., Vondardel, I., Vorobiev, A. A., Vorobyov, A., Vorobyov, L., Vuilleumier, W., Walk, W., Wallraff, C. R., Wang, G. H., Wang, J. H., Wang, Q. F., Wang, X. L., Wang, Y. F., Wang, Z. M., Wang, J., Weber, R., Weill, T. J., Wenau, J., Wenninger, M., White, R., Wilhelm, C., Willmott, F., Wittgenstein, D., Wright, R. J., Wu, S. L., Wu, S. X., Wu, Y. G., Wu, B., Wyslouch, Z. Z., Xu, Z. L., Xue, D. S., Yan, B. Z., Yang, C. G., Yang, G., Yang, K. S., Yang, Q. Y., Yang, Z. Q., Yang, Q., Ye, C. H., Ye, S. C., Yeh, Z. W., Yin, J. M., You, C., Zabounidi, L., Zehnder, M., Zeng, Y., Zeng, D., Zhang, D. H., Zhang, S. Y., Zhang, Z. P., Zhang, J. F., Zhou, R. Y., Zhu, A., Zichichi, and J., Zoll
Subjects: Physics, Coupling constant, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, Electron–positron annihilation, Detector, Charge (physics), 01 natural sciences, Asymmetry, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Atomic physics, 010306 general physics, Pseudovector, Particle Physics - Experiment, media_common, Lepton
Abstract: We have measured the partial widths of the Z 0 into lepton pairs, and the forward-backward charge asymmetry for the process e + e − → μ + μ − using the L3 detector at LEP. We obtain an average Γ ll of 83.0±2.1±1.1 MeV.From this result and the asymmetry measurement, we extract the values of the vector and axial vector couplings of the Z 0 to leptons: g rmv =−0.066 −0.027 +0.046 and g rmA = −0.495 −0.007 +0.007 .
Published: 1990

41. Higgs candidates in e+e− interactions at GeV

Author: E. Valente, S. X. Wu, B. De La Cruz, M. Kopal, A. Favara, Inkyu Park, Zheng Wang, Zhenyu Zhang, M. Steuer, P. Déglon, A. Rosca, Hans J. Vogel, E. Delmeire, U. K. Chaturvedi, Y. S. Lu, M. N. Kienzle-Focacci, Alessandra Doria, M. A. Rahaman, D. Perret-Gallix, L. Romero, C-Q. Li, E. Fiandrini, S. Costantini, A. Shvorob, R. Ranieri, A. Csilling, V. K. Gupta, S. Sarkar, Roberto Battiston, M. Bourquin, L. J. Gutay, U. Becker, H. Anderhub, Gerjan Bobbink, P. Ladron de Guevara, F. DeNotaristefani, A. Lebedev, Dong-Chul Son, P. Achard, J. Allaby, J. J. Blaising, J. Hirschfelder, Stefano Giagu, J. H. Field, B. Borgia, I. Duran, T. Angelescu, Mariagrazia Alviggi, B. Musicar, A. Barczyk, J. Ulbricht, Adrian Biland, I. Vodopianov, A. Engler, M. Capell, B. Stoyanov, H. S. Fesefeldt, E. Pistolesi, Michele Guida, A. Oulianov, C. Palomares, V. Plyaskin, F. J. Eppling, L. W. Jones, J. Casaus, I. Vetlitsky, S. M. Ting, Speranza Falciano, A. Zichichi, S. Schmidt-Kaerst, Samuel C.C. Ting, M. Lebeau, B. Tellili, B. Smith, A. Straessner, Ya Han Hu, M. Wadhwa, H. Milcent, Ren-Yuan Zhu, D. J. Schotanus, N. Batalova, Luca Lista, J. K. Kim, Z. Szillasi, M. Vivargent, H. J. Lee, Marcella Diemoz, D. Piccolo, Manas Maity, S. Braccini, T. Moulik, S. S. Gau, L. Cifarelli, M. Pedace, Alexei Raspereza, M. T. Dova, G. Passaleva, M. W. Gruenewald, I. Clare, Tariq Aziz, I. Josa-Mutuberria, M. Kräber, C. G. Yang, J. Pothier, V. Koutsenko, P. Berges, J. Mnich, R. van Gulik, G. Ambrosi, P. Extermann, Nicola Cavallo, A. Gurtu, Salvatore Mele, P. Lecomte, Yu. Zalite, Christoph Schäfer, B. Z. Yang, D. P. Stickland, Y. H. Chang, R. Berbeco, H. K. Park, J. Tóth, Willis Lin, Sabine Riemann, H. Hofer, K. L. Tung, M. Gataullin, Maurizio Biasini, Marta Felcini, G. Castellini, A. Stone, A. Krüger, Francesca Nessi-Tedaldi, R. de Asmundis, I. Fisk, Peter Raics, A. Arefiev, G. Forconi, J. D. Burger, T. Siedenburg, M. Pohl, R. Leiste, H. F. Chen, Francesco Becattini, A. Hasan, G. Rahal-Callot, N. Raja, Christoph Paus, R. R. McNeil, G. Carlino, Z. F. Gong, Yu. Galaktionov, Kajari Mazumdar, A. Bajo, X. D. Cai, Y. Uchida, P. Wienemann, Georgi Sultanov, R. Barillère, Dong-Hyun Kim, P. Duinker, H. Suter, Ia Iashvili, Egidio Longo, G. Holzner, Crisostomo Sciacca, G. Schwering, S. W. Banerjee, S. Vlachos, Marco Pieri, D. Prokofiev, K. Riles, G. Zilizi, Claudio Luci, D. Pandoulas, H. J. Yang, R. Ofierzynski, J. G. Branson, T. S. Dai, P. Lebrun, A. Klimentov, R. A. Khan, W. Kittel, F. Marzano, G. Coignet, W. Krenz, J. Alcaraz, S. Villa, J. Rodin, S. Likhoded, S. Wynhoff, M. Pauluzzi, Despina Hatzifotiadou, C. Furetta, Jeremy Mans, Valery Schegelsky, H. Rykaczewski, Giovanni Organtini, Pierluigi Paolucci, G. Chiefari, S. Shevchenko, F. Behner, S. N. Ganguli, P. G. Rancoita, B. N. Jin, H. Nowak, A. Degré, Minhong Wang, M. P. Sanders, B. L. Betev, L. Lugnier, C. Rosenbleck, M. Acciarri, Guo-Ming Chen, Z. A. Liu, A. Vorvolakos, F. L. Linde, J.M. LeGoff, H. Wilkens, S. Saremi, A. M. Cartacci, A. C. König, Stefan Roth, An.A. Vorobyov, D. Vicinanza, G. Grenier, S. V. Baldew, D. O. Prokofiev, T. Sztaricskai, S. Patricelli, A. Ewers, T. Niessen, F. C. Erné, G. Marian, D. van Dierendonck, O. Adriani, M. Chemarin, Laszlo Boldizsar, J. Salicio, Imad Baptiste Laktineh, Lucas Taylor, G. M. Chen, Jean Fay, An. Zalite, M. Fabre, M. Rescigno, W. Wallraff, K. Freudenreich, D. Dufournaud, J. Yamamoto, N. Gheordanescu, Z. Z. Xu, S. Banerjee, S. Reucroft, A. Mihul, C. H. Lin, Jasper Kirkby, M. A. Falagan, G. Alemanni, M. Zöller, Aaron Dominguez, Igor Vorobiev, V. Pojidaev, J. A. Rubio, P. Levtchenko, Anna Katharina Kopp, Riccardo Paramatti, Lamberto Luminari, S. R. Hou, B. Zimmermann, Mingming Yang, Felicitas Pauss, G. Cara Romeo, B. P. Roe, A. Kunin, F. Cesaroni, D. Käfer, Panos A Razis, H. El Mamouni, S. C. Yeh, Hafeez R Hoorani, S. Sushkov, Konrad Deiters, F. Brochu, D. della Volpe, G. B. Mohanty, Alberto Aloisio, S. Rosier-Lees, G. Landi, Dimitri Bourilkov, W. J. Metzger, P. Le Coultre, M. Basile, Oleg Fedin, Max Weber, D. Haas, X. W. Tang, Simonetta Gentile, P. A. Piroué, Raffaello D'Alessandro, A. Balandras, G. Viertel, L. Baksay, F. Cotorobai, M. Chamizo, J. Berdugo, P. Spillantini, D. Mangeol, Leonardo Merola, S. Cucciarelli, E. J. Sanchez, L. Tauscher, C. Maña, T. Azemoon, B. Petersen, K. Sudhakar, D. Luckey, T. Paul, Marcos Cerrada, M. von der Mey, A. Buijs, J. B. Ye, D. Kiss, Gyorgy Vesztergombi, X. L. Wang, Luca Malgeri, Peter H. Fisher, F. Cindolo, A. Chen, J. A. van Dalen, Aleandro Nisati, A. De Salvo, Simone Paoletti, Joseph Quartieri, P. Bartalini, A. J.M. Muijs, Manjit Kaur, D. Ren, A. Seganti, Harvey B Newman, M. Musy, Francesca Cavallari, R. Ramelli, D.W. Schmitz, J. P. Martin, P. de Jong, N. Shivarov, Robert Clare, G. Y. Zhu, E. Shumilov, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, V. Shoutko, D. Duchesneau, H. S. Chen, L. Servoli, Claudia Cecchi, G.S. Muanza, Werner Lustermann, Charles Timmermans, M. Dierckxsens, A. Malinin, W. J. Burger, Michael Dittmar, S. Pensotti, Vladimir Andreev, J. D. Swain, Peter Denes, A. Böhm, G. Ruggiero, A. C. Weber, Pàl Hidas, S. Bhattacharya, L. Z. Sun, G. Mirabelli, L. Bellucci, K. Lübelsmeyer, A. Buffini, C. Dionisi, Paolo Bagnaia, S. C. Blyth, Marco Meschini, Pablo Garcia-Abia, Alain Hervé, Christopher George Tully, Wolfgang Lohmann, H. Vogt, B. Bertucci, F. Anselmo, Nicanor Colino, A. Bay, F. Pierella, S. C. Tonwar, Frank Filthaut, Thomas Ferguson, Carlo Civinini, G. Raven, L. Xia, M. Aguilar-Benitez, O. Grimm, Herwig Schopper, and H. Postema
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Missing energy, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, 010306 general physics
Abstract: In a search for the Standard Model Higgs boson, carried out on 212.5~$\mathrm{pb^{-1}}$ of data collected by the L3 detector at the highest LEP centre-of-mass energies, including 116.5~$\mathrm{pb^{-1}}$ above $\sqrt{s} = 206$~GeV, an excess of candidates for the process $e^+ e^- \rightarrow Z^{*}\rightarrow HZ$ is found for Higgs masses near 114.5~GeV. We present an analysis of our data and the characteristics of our strongest candidates.
Published: 2000

42. Measurement of Bose–Einstein correlations in e+e−→W+W− at GeV

Author: A. Barczyk, Adrian Biland, M. Vivargent, D. Piccolo, Yu. Galaktionov, Marco Pieri, H. El Mamouni, Pierluigi Paolucci, J. Alcaraz, Tariq Aziz, I. Vodopianov, A. Engler, G. Marian, X. L. Wang, R. Leiste, Christoph Paus, M. Capell, M. Pauluzzi, Giovanni Passaleva, E. Valente, Vladimir Andreev, Peter Denes, A. Mihul, G. Alemanni, Paolo Bagnaia, Oleg Fedin, H. S. Fesefeldt, Y. Uchida, E. Pistolesi, M. N. Kienzle-Focacci, S. S. Gau, F. C. Erné, D. Ren, G. Viertel, W. J. Burger, S. C. Yeh, Max Weber, Crisostomo Sciacca, Egidio Longo, A. Csilling, Pàl Hidas, S. Bhattacharya, G. Landi, G. Ambrosi, K. Freudenreich, Michael Dittmar, V. Plyaskin, Minhong Wang, M. P. Sanders, B. L. Betev, M. Gataullin, Hans J. Vogel, Simone Paoletti, A. Stone, M. Lebeau, Dimitri Bourilkov, Z. A. Liu, A. Vorvolakos, G. Forconi, M. Pohl, L. Z. Sun, S. Costantini, A. M. Cartacci, W. Kittel, H. Anderhub, A. J.M. Muijs, J. D. Swain, Raffaello D'Alessandro, Maurizio Biasini, Marta Felcini, Manjit Kaur, Francesca Cavallari, Alexei Raspereza, M. T. Dova, P. Wienemann, Georgi Sultanov, A. C. König, A. Lebedev, P. Spillantini, Dong-Chul Son, Ren-Yuan Zhu, B. Musicar, B. Petersen, Samuel C.C. Ting, Roberto Battiston, S. Cucciarelli, E. Fiandrini, M. Campanelli, T. S. Dai, Gyorgy Vesztergombi, Gerjan Bobbink, Francesca Nessi-Tedaldi, Jozsef Toth, Michele Guida, R. A. Khan, Claudio Luci, B. Borgia, B. Smith, P. Duinker, Leonardo Merola, S. Saremi, M. Pedace, D. Pandoulas, Luca Malgeri, L. Tauscher, J. J. Blaising, Francesco Becattini, J. Hirschfelder, Stefano Giagu, J. P. Martin, D. Dufournaud, C. Maña, J. D. Burger, T. Siedenburg, M. Fabre, P. G. Rancoita, P. Violini, A. Böhm, J. Ulbricht, A. Klimentov, S. Braccini, T. Azemoon, Mingming Yang, L. Bellucci, A. Krüger, G. Grenier, C. H. Lin, G. Rahal-Callot, N. Raja, V. Pojidaev, A. Gurtu, H. F. Chen, A. De Salvo, Marcos Cerrada, G. Ruggiero, A. C. Weber, R. van Gulik, S. Reucroft, H. J. Lee, Marcella Diemoz, L. Cifarelli, J. G. Branson, S. Villa, H. J. Yang, C. Dionisi, M. W. Gruenewald, Pablo Garcia-Abia, Speranza Falciano, I. Josa-Mutuberria, M. Kräber, P. Bartalini, A. Seganti, G. Y. Zhu, E. Shumilov, P. Extermann, V. Shoutko, Claudia Cecchi, Harvey B Newman, M. Musy, B. Tellili, I. Clare, G. Mirabelli, R. de Asmundis, I. Fisk, H. Suter, Alain Hervé, Salvatore Mele, Christoph Schäfer, B. Z. Yang, H. Hofer, R. Ofierzynski, K. L. Tung, M. Chemarin, G. M. Chen, Aaron Dominguez, R. Barillère, I. Vetlitsky, Felicitas Pauss, Ia Iashvili, Nicola Cavallo, A. Straessner, Luca Lista, A. Hasan, B. N. Jin, H. Nowak, D. Vicinanza, Igor Vorobiev, S. Likhoded, H. K. Park, W. Wallraff, T. Paul, P. Levtchenko, J. M. Le Goff, J. Yamamoto, N. Gheordanescu, K. Lübelsmeyer, An.A. Vorobyov, S. N. Ganguli, S. Wynhoff, C-Q. Li, R. Ramelli, D.W. Schmitz, P. de Jong, N. Shivarov, Robert Clare, A. Bay, S. Rosier-Lees, Panos A Razis, G. Castellini, P. Le Coultre, S. Banerjee, Willis Lin, Sabine Riemann, Z. F. Gong, W. G. Ma, R. Berbeco, V. K. Gupta, J. A. Rubio, Carlo Civinini, H. Milcent, S. W. Banerjee, M. Basile, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, A. Buffini, S. V. Baldew, D. O. Prokofiev, M. Napolitano, G. Chiefari, O. Adriani, B. Zimmermann, P. Lebrun, A. Degré, A. Oulianov, C. Palomares, S. Shevchenko, S. Vlachos, G. Raven, Imad Baptiste Laktineh, Jeremy Mans, Lamberto Luminari, F. DeNotaristefani, Lucas Taylor, M. G. Alviggi, Konrad Deiters, D. Mangeol, Simonetta Gentile, G. B. Mohanty, K. Sudhakar, A. Balandras, L. Xia, D. Duchesneau, H. S. Chen, Jasper Kirkby, M. A. Falagan, J. Berdugo, T. Moulik, L. Servoli, M. Aguilar-Benitez, O. Grimm, D. Luckey, M. Acciarri, M. Zöller, M. von der Mey, F. Behner, Alberto Aloisio, T. Angelescu, Herwig Schopper, J. B. Ye, E. J. Sanchez, Guo-Ming Chen, Anna Katharina Kopp, J. Rodin, T. Niessen, Pierre Lecomte, D. Kiss, J. Casaus, Dong-Hyun Kim, A. Chen, D. van Dierendonck, D. P. Stickland, Y. H. Chang, Peter H. Fisher, J. Salicio, Zichen Xu, G. Zilizi, Werner Lustermann, Charles Timmermans, M. Dierckxsens, Peter Raics, H. Postema, X. W. Tang, S. X. Wu, Ya Han Hu, A. Malinin, P. A. Piroué, M. Chamizo, C. G. Yang, M. Rescigno, J. Pothier, Yu. Zalite, Manas Maity, E. Delmeire, U. K. Chaturvedi, Kajari Mazumdar, X. D. Cai, L. Romero, Y. S. Lu, Aleandro Nisati, S. Sarkar, Joseph Quartieri, A. Shvorob, Inkyu Park, G. Cara Romeo, B. P. Roe, M. Steuer, J. H. Field, M. Bourquin, F. Cesaroni, P. Berges, B. Stoyanov, S. Schmidt-Kaerst, M. A. Rahaman, D. Perret-Gallix, A. Arefiev, R. R. McNeil, G. Carlino, L. Baksay, F. Cotorobai, F. Brochu, D. Prokofiev, G. Holzner, D. della Volpe, K. Riles, F. Marzano, G. Coignet, W. Krenz, L. J. Gutay, J. A. van Dalen, U. Becker, Z. Szillasi, V. Koutsenko, I. Duran, T. Sztaricskai, Alessandra Doria, F. J. Eppling, L. W. Jones, S. M. Ting, An. Zalite, S. R. Hou, J.V. Allaby, S. Patricelli, D. Hatzifotiadou, Laszlo Boldizsar, M. Wadhwa, D. J. Schotanus, S. C. Blyth, Marco Meschini, Christopher George Tully, Wolfgang Lohmann, H. Vogt, B. Bertucci, F. Anselmo, Nicanor Colino, F. Pierella, Federico Cindolo, S. C. Tonwar, Frank Filthaut, Thomas Ferguson, B. De La Cruz, P. Déglon, A. Bajo, G. Schwering, Joachim Mnich, C. Furetta, P. Achard, L. Lugnier, J. K. Kim, A. Buijs, A. Favara, Zheng Wang, Zhenyu Zhang, A. Rosca, M. E. Sarakinos, P. Ladron de Guevara, Riccardo Paramatti, A. Kunin, Hafeez R Hoorani, W. J. Metzger, D. Haas, F. L. Linde, S. Pensotti, Valery Schegelsky, Antonino Zichichi, H. Rykaczewski, Giovanni Organtini, H. Wilkens, G. S. Muanza, and Jean Fay
Subjects: Condensed Matter::Quantum Gases, Physics, Nuclear and High Energy Physics, Condensed Matter::Other, 010308 nuclear & particles physics, Electron–positron annihilation, Detector, Bose–Einstein correlations, 01 natural sciences, Nuclear physics, Quantum mechanics, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: We investigate Bose-Einstein correlations (BEC) in W-pair production at √s ≃ 189 GeV using the L3 detector at LEP. We observe BEC between particles from a single W decay in good agreement with those from a light-quark Z decay sample. We investigate their possible existence between particles coming from different W's. No evidence for such inter-W BEC is found. (C) 2000 Elsevier Science B.V.
Published: 2000

43. Production of single W bosons at GeV and measurement of WWγ gauge couplings

Author: H. Milcent, A. M. Cartacci, Vladimir Andreev, Yu. Galaktionov, D. Ruschmeier, J. Alcaraz, A. C. König, Crisostomo Sciacca, T. Moulik, D. Dufournaud, Roberto Battiston, Gerjan Bobbink, B. Borgia, J. Ulbricht, B. De La Cruz, B. Tellili, I. Clare, E. Valente, L. J. Gutay, U. Becker, A. Mihul, G. Alemanni, Z. Z. Xu, C. H. Lin, T. Angelescu, D. P. Stickland, Y. H. Chang, V. Pojidaev, Peter Denes, Maurizio Biasini, Marta Felcini, G. Viertel, Paolo Bagnaia, S. C. Yeh, I. Duran, J. Casaus, A. Barczyk, Konrad Deiters, G. B. Mohanty, Adrian Biland, F. Pierella, P. Déglon, Francesco Becattini, A. Buijs, Hans J. Vogel, F. J. Eppling, L. W. Jones, Federico Cindolo, A. Bajo, F. Ferroni, Alberto Aloisio, C. G. Yang, L. Romero, J. Pothier, Yu. Zalite, S. Costantini, G. Forconi, Raffaello D'Alessandro, H. Anderhub, M. Pohl, Ph. Lebrun, Speranza Falciano, S. M. Ting, A. Straessner, S. Sarkar, Luca Lista, Jozsef Toth, Marco Pieri, Leonardo Merola, G. Schwering, H. J. Yang, M. Bourquin, B. Musicar, X. W. Tang, S. C. Tonwar, L. Tauscher, I. Vodopianov, A. Engler, M. Lebeau, Frank Filthaut, Claudio Luci, D. Pandoulas, M. Campanelli, Pierluigi Paolucci, P. Duinker, P. A. Piroué, S. Likhoded, Joachim Mnich, Willis Lin, Sabine Riemann, M. Chamizo, S. Wynhoff, T. Azemoon, C. Furetta, J. Allaby, M. Capell, P. Achard, G. Cara Romeo, B. P. Roe, A. Arefiev, Michele Guida, A. Klimentov, P. G. Rancoita, A. Robohm, H. S. Fesefeldt, H. J. Lee, Marcella Diemoz, Thomas Ferguson, Ren-Yuan Zhu, L. Lugnier, S. Pensotti, Valery Schegelsky, Antonino Zichichi, Luciano Barone, E. Pistolesi, G. Marian, G. Grenier, L. Cifarelli, Marcos Cerrada, R. Ramelli, F. C. Erné, B. N. Jin, H. Nowak, B. Smith, Y. Uchida, D. Vicinanza, A. Oulianov, H. Rykaczewski, Giovanni Organtini, T. Sztaricskai, D.W. Schmitz, Francesca Nessi-Tedaldi, R. R. McNeil, Giovanni Passaleva, C. Palomares, S. Reucroft, F. Brochu, D. della Volpe, M. Pedace, H. Wilkens, G. Carlino, P. de Jong, N. Shivarov, J. D. Burger, Minhong Wang, M. P. Sanders, B. L. Betev, K. Freudenreich, S. Braccini, T. Siedenburg, Robert Clare, An. Zalite, J. K. Kim, G. Rahal-Callot, N. Raja, P. Marchesini, W. G. Ma, S. S. Gau, A. Gurtu, C-Q. Li, A. Lebedev, Dong-Chul Son, V. K. Gupta, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. N. Kienzle-Focacci, W. Wallraff, D. Prokofiev, S. Cucciarelli, S. C. Blyth, V. Brigljevic, Marco Meschini, M. Napolitano, C. Maña, J. J. Blaising, J. Hirschfelder, Stefano Giagu, M. Gataullin, Peter H. Fisher, H. Suter, Ia Iashvili, F. DeNotaristefani, W. J. Burger, R. de Asmundis, I. Fisk, A. Csilling, A. Stone, J. G. Branson, S. Banerjee, Ya Han Hu, D. Duchesneau, H. S. Chen, S. Villa, L. Servoli, Pàl Hidas, S. Bhattacharya, A. Hasan, Mariagrazia Alviggi, T. Paul, G. Holzner, Manas Maity, P. Berges, K. Sudhakar, S. Patricelli, S. W. Banerjee, Dong-Hyun Kim, Christopher George Tully, K. Riles, S. N. Ganguli, S. Vlachos, I. Vetlitsky, L. Z. Sun, D. Hatzifotiadou, Laszlo Boldizsar, M. von der Mey, G. Zilizi, A. Favara, A. Degré, J. B. Ye, Zheng Wang, F. Marzano, G. Coignet, R. van Gulik, J. Rodin, T. Niessen, P. Extermann, W. Krenz, H. El Mamouni, Jeremy Mans, F. Di Lodovico, Zhenyu Zhang, L. Bellucci, Samuel C.C. Ting, A. Rosca, Wolfgang Lohmann, H. Vogt, B. Bertucci, M. Acciarri, Guo-Ming Chen, F. L. Linde, M. E. Sarakinos, J.P. Martin, Nicola Cavallo, C. Dionisi, Oleg Fedin, Pablo Garcia-Abia, Alain Hervé, Salvatore Mele, Christoph Schäfer, B. Z. Yang, H. Hofer, A. Chen, D. van Dierendonck, J. Salicio, P. Ladron de Guevara, K. L. Tung, Max Weber, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, A. Bay, Carlo Civinini, G. Raven, R. Berbeco, L. Xia, Peter Raics, H. K. Park, E. Delmeire, U. K. Chaturvedi, M. Aguilar-Benitez, G. Landi, F. Anselmo, Nicanor Colino, Y. S. Lu, O. Grimm, Herwig Schopper, A. Shvorob, Z. Szillasi, S. X. Wu, Simone Paoletti, Inkyu Park, J. H. Field, H. Postema, A. J.M. Muijs, G. Castellini, M. Steuer, B. Stoyanov, V. Koutsenko, Manjit Kaur, Michael Dittmar, S. Schmidt-Kaerst, M. A. Rahaman, D. Perret-Gallix, Egidio Longo, Kajari Mazumdar, Z. F. Gong, X. D. Cai, Aleandro Nisati, W. Kittel, F. Cesaroni, Joseph Quartieri, M. Fabre, Emilio Leonardi, Mingming Yang, D. Sciarrino, L. Baksay, F. Cotorobai, Z. A. Liu, A. Vorvolakos, J. D. Swain, S. Saremi, J. M. Le Goff, J. Yamamoto, N. Gheordanescu, J. A. Rubio, Aaron Dominguez, Felicitas Pauss, A. Böhm, S. Rosier-Lees, P. Le Coultre, M. Basile, G. Ruggiero, Alessandra Doria, A. C. Weber, S. R. Hou, M. Wadhwa, D. J. Schotanus, Kati Lassila-Perini, V. Plyaskin, Alexei Raspereza, M. T. Dova, A. Krüger, D. Mangeol, R. Barillère, M. Rescigno, S. V. Baldew, D. O. Prokofiev, D. Luckey, Jasper Kirkby, M. A. Falagan, M. Zöller, Anna Katharina Kopp, G. Mirabelli, D. Kiss, J. A. van Dalen, G. Ambrosi, P. Molnar, K. Lübelsmeyer, H. F. Chen, P. Wienemann, Georgi Sultanov, T. S. Dai, R. A. Khan, R. Leiste, Christoph Paus, G. Chiefari, S. Shevchenko, A. Buffini, F. Behner, M. Chemarin, Lamberto Luminari, G. M. Chen, Pierre Lecomte, Werner Lustermann, Charles Timmermans, M. Dierckxsens, A. Malinin, Dimitri Bourilkov, P. Spillantini, B. Petersen, E. Fiandrini, Gyorgy Vesztergombi, Luca Malgeri, P. Violini, A. De Salvo, P. Bartalini, A. Seganti, Harvey B Newman, M. Musy, M. Vivargent, D. Piccolo, An.A. Vorobyov, O. Adriani, G. S. Muanza, Imad Baptiste Laktineh, Lucas Taylor, Jean Fay, Igor Vorobiev, P. Levtchenko, Riccardo Paramatti, Panos A Razis, A. Kunin, Hafeez R Hoorani, Simonetta Gentile, W. J. Metzger, A. Balandras, J. Berdugo, E. J. Sanchez, D. Haas, R. Faccini, X. L. Wang, M. Pauluzzi, D. Ren, Francesca Cavallari, G. Y. Zhu, E. Shumilov, V. Shoutko, Claudia Cecchi, and Tariq Aziz
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Hadron, Lambda, 01 natural sciences, 7. Clean energy, Standard Model, Luminosity, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), 010306 general physics, Energy (signal processing), Lepton, Boson
Abstract: Single W boson production in electron-positron collisions is studied with the L3 detector at LEP. The data sample collected at a centre-of-mass energy of $\sqrt{s} = 188.7 \mathrm{\ Ge\kern -0.1em V}{}$ corresponds to an integrated luminosity of $176.4\,\mbox{pb$^{-1}$}$. Events with a single energetic lepton or two acoplanar hadronic jets are selected. Within phase-space cuts, the total cross-section is measured to be $0.53 \pm 0.12 \pm 0.03 \ \rm{pb}$, consistent with the Standard Model expectation. Including our single W boson results obtained at lower $\sqrt{s}$, the WW$\gamma$ gauge couplings $\kappa_\gamma$ and $\lambda_\gamma$ are determined to be \mbox{$\kappa_\gamma = 0.93 \pm 0.16 \pm 0.09$} and \mbox{$\lambda_\gamma = -0.31^{+0.68}_{-0.19} \pm 0.13$}.
Published: 2000

44. Search for excited leptons at GeV

Author: G. Forconi, Egidio Longo, M. Vivargent, D. Piccolo, Jozsef Toth, Claudio Luci, Kati Lassila-Perini, D. Pandoulas, V. Plyaskin, Ren-Yuan Zhu, Luciano Barone, L. J. Gutay, U. Becker, A. Arefiev, T. Paul, G. Grenier, I. Duran, Roberto Battiston, Gerjan Bobbink, B. Borgia, J. Ulbricht, R. R. McNeil, G. Carlino, I. Clare, S. Reucroft, F. J. Eppling, L. W. Jones, S. M. Ting, H. Anderhub, G. Schwering, C-Q. Li, P. Molnar, V. K. Gupta, H. F. Chen, G. Holzner, K. Riles, S. Vlachos, Konrad Deiters, G. B. Mohanty, Alberto Aloisio, Daijin Kim, M. Pedace, T. van Rhee, Michele Guida, B. Smith, D. Kamrad, G. Chiefari, S. Shevchenko, F. Behner, M. T. Dova, F. Muheim, A. Oulianov, F. Marzano, G. Coignet, W. Krenz, C. Furetta, F. DeNotaristefani, C. Palomares, J. Rodin, T. Niessen, Dimitri Bourilkov, X. W. Tang, P. A. Piroué, L. Lugnier, Samuel C.C. Ting, P. Spillantini, M. Chamizo, Tariq Aziz, B. Petersen, A. Gurtu, S. Braccini, Alessandra Doria, A. Favara, Manas Maity, H. Milcent, A. M. Cartacci, E. Fiandrini, Gyorgy Vesztergombi, Luca Malgeri, P. Marchesini, J.V. Allaby, S. Patricelli, Zheng Wang, Zhenyu Zhang, P. Berges, R. van Gulik, A. Hasan, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, A. Lebedev, Dong-Chul Son, P. Extermann, Salvatore Mele, R. Leiste, Christoph Paus, T. Moulik, D. Kiss, V. Brigljevic, B. Monteleoni, A. De Salvo, K. Sudhakar, Christoph Schäfer, B. Z. Yang, H. Hofer, K. L. Tung, R. de Asmundis, I. Fisk, B. De La Cruz, Howard A. Stone, J. J. Blaising, J. Hirschfelder, Stefano Giagu, Marco Pieri, J. G. Branson, P. Bartalini, D. Dufournaud, M. von der Mey, D. Hatzifotiadou, Laszlo Boldizsar, A. Rosca, X. Chereau, Maurizio Biasini, M. E. Sarakinos, Raffaello D'Alessandro, S. R. Hou, M. Wadhwa, R. Barillère, B. Cozzoni, F. C. Erné, Marta Felcini, Pierluigi Paolucci, D. P. Stickland, F. Ziegler, Y. H. Chang, S. Villa, A. Lavorato, J. B. Ye, I. H. Park, Crisostomo Sciacca, A. Seganti, Harvey B Newman, M. Musy, L. Fredj, D. J. Schotanus, Francesco Becattini, T. Angelescu, Z. Z. Xu, C. H. Lin, P. Déglon, G. Marian, Francesca Nessi-Tedaldi, S. N. Ganguli, Leonardo Merola, Alexei Klimentov, S. X. Wu, V. Pojidaev, J. Casaus, Y. D. Oh, P. Ladron de Guevara, Dong-Hyun Kim, M. N. Kienzle-Focacci, H. J. Yang, J. D. Burger, I. Vetlitsky, U. K. Chaturvedi, Giovanni Passaleva, A. Degré, T. Siedenburg, G. Rahal-Callot, L. Tauscher, G. Zilizi, Y. S. Lu, P. G. Rancoita, M. Rescigno, T. Azemoon, E. Valente, N. Raja, A. Csilling, A. Barczyk, A. Shvorob, Adrian Biland, M. Lebeau, B. N. Jin, K. Freudenreich, S. Wynhoff, D. O. Prokofiev, M. Steuer, C. G. Yang, Y. Uchida, J. Pothier, Yu. Zalite, Alexander Malinin, H. Nowak, D. Vicinanza, P. Duinker, H. Suter, Marcos Cerrada, J. H. Field, Ia Iashvili, M. A. Rahaman, H. El Mamouni, F. Di Lodovico, L. Romero, D. Perret-Gallix, Axel König, G. Viertel, Jasper Kirkby, M. A. Falagan, T. Sztaricskai, Minhong Wang, M. P. Sanders, B. L. Betev, B. Stoyanov, S. Schmidt-Kaerst, W. Kittel, D. Prokofiev, Luisa Cifarelli, W. Wallraff, S. Sarkar, G. Cara Romeo, B. P. Roe, Yu. Galaktionov, Hans J. Vogel, J. A. van Dalen, M. Zöller, Anna Katharina Kopp, M. Bourquin, W. T. Lin, I. Vodopianov, A. Engler, M. Capell, S. Banerjee, C. Cecchi, Joachim Mnich, J. Alcaraz, S. Costantini, An. Zalite, P. Achard, P. Lebrun, H. S. Fesefeldt, E. Pistolesi, Oleg Fedin, S. Cucciarelli, A. Robohm, F. Brochu, M. Campanelli, M. Acciarri, Guo-Ming Chen, D. della Volpe, Max Weber, S. S. Gau, C. Maña, Speranza Falciano, H. J. Lee, A. Chen, D. van Dierendonck, An.A. Vorobyov, A. Straessner, M. Pohl, M. Fabre, A. Mihul, G. Alemanni, Mingming Yang, J. Salicio, Marcella Diemoz, M. Gataullin, Luca Lista, O. Adriani, Imad Baptiste Laktineh, S. C. Yeh, Lucas Taylor, A. Stone, M. G. Alviggi, Sabine Riemann, H. K. Park, G. Castellini, F. Ferroni, Z. F. Gong, Z. Szillasi, V. Koutsenko, F. Cesaroni, Emilio Leonardi, D. Sciarrino, L. Baksay, F. Cotorobai, Z. A. Liu, A. Vorvolakos, S. Saremi, J. M. Le Goff, N. Gheordanescu, W. J. Burger, J. A. Rubio, Michael Dittmar, Peter Raics, Kajari Mazumdar, X. D. Cai, J. D. Swain, D. Peach, A. Böhm, Lamberto Luminari, R. C. Ball, Pierre Lecomte, Werner Lustermann, Charles Timmermans, A. C. Weber, J. Busenitz, G. Mirabelli, K. Lübelsmeyer, A. Buffini, R. Ramelli, D.W. Schmitz, G. Pascale, P. de Jong, N. Shivarov, Robert Clare, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, Peter H. Fisher, D. Duchesneau, H. S. Chen, L. Servoli, Aleandro Nisati, G. Landi, Joseph Quartieri, Simone Paoletti, Aaron Dominguez, Felicitas Pauss, A. J.M. Muijs, S. Rosier-Lees, Sw. Banerjee, P. Le Coultre, M. Basile, Manjit Kaur, D. Mangeol, J. K. Kim, D. Luckey, P. Laurikainen, G. Ambrosi, P. Wienemann, Georgi Sultanov, T. S. Dai, R. A. Khan, V. P. Andreev, M. Chemarin, N. Cavallo, G. M. Chen, Pàl Hidas, S. Bhattacharya, L. Z. Sun, L. Bellucci, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, A. Bay, Carlo Civinini, G. Raven, L. Xia, M. Aguilar-Benitez, O. Grimm, Herwig Schopper, H. Postema, R. Ostonen, R. Faccini, X. L. Wang, G. G.G. Massaro, M. Pauluzzi, D. Ren, A. P. Colijn, A. Buijs, Francesca Cavallari, J. P. Martin, G. Y. Zhu, E. Shumilov, V. Shoutko, Igor Vorobiev, P. Levtchenko, Panos A Razis, S. Pensotti, Valery Schegelsky, Simonetta Gentile, A. Balandras, J. Berdugo, E. J. Sanchez, Antonino Zichichi, H. Rykaczewski, Giovanni Organtini, H. Wilkens, G. S. Muanza, Jean Fay, Nicolas Produit, Riccardo Paramatti, A. Kunin, Hafeez R Hoorani, W. J. Metzger, D. Haas, F. L. Linde, D. Ruschmeier, Peter Denes, Paolo Bagnaia, F. Pierella, Federico Cindolo, A. Button, S. C. Tonwar, Frank Filthaut, Thomas Ferguson, S. C. Blyth, Marco Meschini, Christopher George Tully, Wolfgang Lohmann, H. Vogt, B. Bertucci, S. C. Kim, F. Anselmo, and Nicanor Colino
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, 01 natural sciences, 7. Clean energy, Luminosity, Nuclear physics, Excited state, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Lepton
Abstract: A search for excited leptons, e ∗ , μ ∗ , τ ∗ , ν e ∗ , ν μ ∗ and ν τ ∗ , was performed with the L3 detector at LEP using data collected at a centre-of-mass energy of 189 GeV, corresponding to an integrated luminosity of 176 pb −1 . No evidence of their production is observed. From the searches for pair produced excited leptons, lower mass limits are set close to the kinematic limit. From the searches for singly produced excited leptons, upper limits on their couplings are derived in the mass range up to 189 GeV.
Published: 2000

45. Single and multi-photon events with missing energy in e+e−collisions at = 189 GeV

Author: Alessandra Doria, S. R. Hou, M. Wadhwa, D. J. Schotanus, D. Kamrad, G. Chiefari, S. Shevchenko, R. Barillère, C-Q. Li, V. K. Gupta, A. Arefiev, F. Behner, Dimitri Bourilkov, Francesca Nessi-Tedaldi, R. R. McNeil, M. Rescigno, Igor Vorobiev, P. Levtchenko, A. C. Weber, G. Carlino, P. Spillantini, J. D. Burger, R. Leiste, Christoph Paus, Tariq Aziz, G. Forconi, Panos A Razis, H. Anderhub, J. A. van Dalen, B. Petersen, Speranza Falciano, F. DeNotaristefani, E. Fiandrini, T. Siedenburg, G. Rahal-Callot, G. Holzner, H. K. Park, Gyorgy Vesztergombi, A. Straessner, G. Mirabelli, Z. Szillasi, R. van Gulik, K. Riles, D. O. Prokofiev, M. Campanelli, N. Raja, P. Duinker, I. Korolko, R. Ostonen, Jozsef Toth, Claudio Luci, D. Pandoulas, Luca Lista, C. J.W.P. Timmermans, P. Extermann, Raffaello D'Alessandro, V. Koutsenko, G. Castellini, K. Lübelsmeyer, Salvatore Mele, Christoph Schäfer, B. Z. Yang, F. Marzano, G. Coignet, Michele Guida, B. Smith, A. Favara, B. Monteleoni, A. Lebedev, A. Klimentov, Dong-Chul Son, H. Hofer, K. L. Tung, W. Krenz, Z. F. Gong, A. De Salvo, C. Palomares, Simonetta Gentile, A. Balandras, Leonardo Merola, Jasper Kirkby, M. A. Falagan, Manas Maity, H. Suter, Ia Iashvili, J. Hirschfelder, H. J. Lee, Stefano Giagu, S. Braccini, Samuel C.C. Ting, P. Bartalini, A. Rosca, Sabine Riemann, R. Ramelli, Crisostomo Sciacca, A. Buffini, P. Berges, J. Berdugo, X. Chereau, Marco Meschini, M. Zöller, Anna Katharina Kopp, M. E. Sarakinos, E. J. Sanchez, L. Tauscher, L. Cifarelli, L. Romero, A. Seganti, Lamberto Luminari, Harvey B Newman, M. Musy, S. Sarkar, C. Dionisi, B. De La Cruz, Egidio Longo, P. Lebrun, Vladimir Andreev, D. Ruschmeier, L. Malgeri, P. G. Rancoita, T. Azemoon, P. Ladron de Guevara, D.W. Schmitz, G. Pascale, P. de Jong, N. Shivarov, M. Bourquin, Howard A. Stone, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, E. Valente, Kati Lassila-Perini, V. Plyaskin, A. M. Cartacci, A. C. König, R. C. Ball, Pierre Lecomte, M. N. Kienzle-Focacci, Robert Clare, M. Acciarri, Pablo Garcia-Abia, Alain Hervé, Joachim Mnich, P. Achard, A. Bay, R. de Asmundis, I. Fisk, B. Cozzoni, R. Faccini, Marcella Diemoz, B. N. Jin, J. J. Blaising, T. Sztaricskai, Guo-Ming Chen, Marco Pieri, Pierluigi Paolucci, F. L. Linde, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, Marcos Cerrada, I. Vetlitsky, M. Napolitano, P. Déglon, Roberto Battiston, A. Robohm, M. T. Dova, G. Grenier, G. Viertel, A. Barczyk, G. Cara Romeo, B. P. Roe, C. Cecchi, A. Csilling, H. Nowak, D. Vicinanza, Davide Piccolo, Werner Lustermann, M. Vivargent, A. Malinin, Carlo Civinini, X. L. Wang, A. Chen, D. van Dierendonck, G. G.G. Massaro, M. Pauluzzi, J. Salicio, Gerjan Bobbink, G. Raven, An. Zalite, Hans J. Vogel, S. X. Wu, Adrian Biland, Daijin Kim, L. Xia, S. Reucroft, D. Duchesneau, H. S. Chen, H. Milcent, M. Aguilar-Benitez, B. Borgia, Maurizio Biasini, W. T. Lin, J. Ulbricht, F. Brochu, S. Costantini, W. J. Burger, Marta Felcini, G. Marian, O. Grimm, Ren-Yuan Zhu, Luciano Barone, Yu. Galaktionov, Herwig Schopper, L. Servoli, Michael Dittmar, J. Alcaraz, C. Furetta, D. Dufournaud, J. Busenitz, D. della Volpe, Francesco Becattini, F. Muheim, Peter Denes, H. Postema, M. Pohl, T. Moulik, L. Lugnier, P. Marchesini, D. Kiss, Y. D. Oh, S. S. Gau, V. Brigljevic, M. Steuer, M. Pedace, T. van Rhee, W. Wallraff, Giovanni Passaleva, D. Ren, A. Lavorato, Francesca Cavallari, I. H. Park, Pàl Hidas, S. Bhattacharya, Z. Z. Xu, H. J. Yang, C. H. Lin, Paolo Bagnaia, M. Gataullin, T. Paul, W. Kittel, D. P. Stickland, F. Ziegler, Y. H. Chang, A. Buijs, I. Vodopianov, A. Engler, J. D. Swain, H. F. Chen, M. A. Rahaman, A. Gurtu, M. Capell, V. Pojidaev, H. El Mamouni, F. Di Lodovico, A. Mihul, G. Alemanni, J. G. Branson, S. Villa, L. Z. Sun, D. Peach, D. Perret-Gallix, S. Wynhoff, A. P. Colijn, A. Stone, S. Banerjee, F. Pierella, Federico Cindolo, H. S. Fesefeldt, E. Pistolesi, Dong-Hyun Kim, S. C. Yeh, S. N. Ganguli, G. Zilizi, A. Degré, J. P. Martin, Y. Uchida, I. Clare, Konrad Deiters, L. Bellucci, G. Y. Zhu, Z. M. Wang, E. Shumilov, A. Hasan, K. Sudhakar, A. Böhm, Minhong Wang, M. P. Sanders, G. B. Mohanty, Alberto Aloisio, B. L. Betev, V. Shoutko, A. Button, S. Pensotti, Valery Schegelsky, Antonino Zichichi, M. von der Mey, J. B. Ye, H. Rykaczewski, X. W. Tang, S. C. Tonwar, M. Fabre, Oleg Fedin, L. Lebeau, Giovanni Organtini, P. A. Piroué, Max Weber, U. K. Chaturvedi, Y. S. Lu, M. Chamizo, Mingming Yang, A. Shvorob, Frank Filthaut, H. Wilkens, S. Rosier-Lees, J. H. Field, Thomas Ferguson, B. Stoyanov, S. Schmidt-Kaerst, G. S. Muanza, G. Landi, Simone Paoletti, Jean Fay, A. J.M. Muijs, Manjit Kaur, P. Laurikainen, S. C. Blyth, Nicolas Produit, Riccardo Paramatti, A. Kunin, Hafeez R Hoorani, Christopher George Tully, G. Ambrosi, Wolfgang Lohmann, B. Bertucci, S. C. Kim, W. J. Metzger, F. Anselmo, Nicanor Colino, T. Angelescu, P. Wienemann, Georgi Sultanov, T. S. Dai, R. A. Khan, J. Casaus, D. Haas, C. G. Yang, J. Pothier, Yu. Zalite, G. Schwering, An.A. Vorobyov, M. Chemarin, N. Cavallo, O. Adriani, Imad Baptiste Laktineh, Lucas Taylor, M. G. Alviggi, G. M. Chen, Aleandro Nisati, Joseph Quartieri, Aaron Dominguez, F. C. Erné, Felicitas Pauss, K. Freudenreich, W. G. Ma, P. Le Coultre, M. Basile, D. Mangeol, J. K. Kim, D. Luckey, S. Cucciarelli, C. Maña, S. W. Banerjee, S. Vlachos, J. Rodin, T. Niessen, F. Ferroni, Z. P. Zhang, Peter Raics, J.V. Allaby, Kajari Mazumdar, X. D. Cai, S. Patricelli, D. Hatzifotiadou, Laszlo Boldizsar, L. Fredj, F. Cesaroni, Emilio Leonardi, D. Sciarrino, L. Baksay, F. Cotorobai, D. Prokofiev, Z. A. Liu, A. Vorvolakos, L. J. Gutay, U. Becker, S. Saremi, I. Duran, H. Vogt, F. J. Eppling, L. W. Jones, P. H. Fisher, S. M. Ting, J. M. Le Goff, N. Gheordanescu, J. A. Rubio, and P. Molnar
Subjects: Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, FOS: Physical sciences, Fotones, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, Ciencias Exactas, Physics, Missing energy, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Física, large electron positron collider, Supersymmetry, Extra dimensions, Neutralino, High Energy Physics::Experiment, Gravitino, supersymmetry, Neutrino, Particle Physics - Experiment
Abstract: Single and multi-photon events with missing energy are analysed using data collected with the L3 detector at LEP at a centre-of-mass energy of 189 GeV, for a total of 176 pb-1 of integrated luminosity. The cross section of the process e+e- → νν̄γ(γ) is measured and the number of light neutrino flavours is determined to be Nv = 3.011±0.077 including lower energy data. Upper limits on cross sections of supersymmetric processes are set and interpretations in supersymmetric models provide improved limits on the masses of the lightest neutralino and the gravitino. Graviton-photon production in low scale gravity models with extra dimensions is searched for and limits on the energy scale of the model are set exceeding 1 TeV for two extra dimensions., Facultad de Ciencias Exactas
Published: 1999

46. Study of Z boson pair production in e+e− collisions at LEP at GeV

Author: Zhenyu Zhang, Raffaello D'Alessandro, N. Gheordanescu, T. Angelescu, Dimitri Bourilkov, A. Barczyk, A. Rosca, X. Chereau, G. Ambrosi, M. E. Sarakinos, R. Barillère, Adrian Biland, Konrad Deiters, Leonardo Merola, J. Casaus, P. Spillantini, B. Petersen, P. Wienemann, Georgi Sultanov, T. S. Dai, R. A. Khan, P. Ladron de Guevara, G. B. Mohanty, P. Laurikainen, Alberto Aloisio, L. Tauscher, Peter H. Fisher, Aleandro Nisati, E. Fiandrini, Joseph Quartieri, M. Chemarin, N. Cavallo, Gyorgy Vesztergombi, Luca Malgeri, T. Azemoon, R. Leiste, Christoph Paus, P. Lebrun, Pàl Hidas, S. Bhattacharya, C. G. Yang, K. Sudhakar, J. Pothier, Yu. Zalite, A. De Salvo, G. M. Chen, M. von der Mey, B. Monteleoni, D. O. Prokofiev, Jeremy Mans, L. Z. Sun, J. B. Ye, I. Vodopianov, A. Engler, Marcos Cerrada, M. Capell, F. Cesaroni, Jasper Kirkby, M. A. Falagan, Alessandra Doria, Aaron Dominguez, Felicitas Pauss, M. Zöller, Anna Katharina Kopp, P. Bartalini, X. W. Tang, P. A. Piroué, H. Milcent, T. Moulik, H. S. Fesefeldt, E. Pistolesi, M. Chamizo, M. Campanelli, S. Rosier-Lees, P. Le Coultre, M. Basile, R. Ramelli, D. Mangeol, J. K. Kim, D. Luckey, D. Kiss, M. Acciarri, Guo-Ming Chen, D.W. Schmitz, G. Pascale, G. Forconi, L. Bellucci, P. de Jong, A. Seganti, Harvey B Newman, S. X. Wu, T. Sztaricshai, N. Shivarov, Howard A. Stone, T. Paul, Emilio Leonardi, A. Chen, D. van Dierendonck, Jozsef Toth, An. Zalite, J. Salicio, Yu. Galaktionov, J. Alcaraz, D. P. Stickland, F. Ziegler, Y. H. Chang, Kati Lassila-Perini, P. G. Rancoita, S. R. Hou, M. Wadhwa, D. J. Schotanus, H. El Mamouni, Francesco Conventi, V. Plyaskin, J. G. Branson, J.V. Allaby, S. Patricelli, D. Sciarrino, M. Vivargent, Maurizio Biasini, Marta Felcini, D. Piccolo, S. Villa, A. Lavorato, Marco Pieri, Roberto Battiston, Gerjan Bobbink, B. Borgia, Pierluigi Paolucci, Robert Clare, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, J. Ulbricht, G. Schwering, F. Di Lodovico, Claudio Luci, D. Pandoulas, G. Grenier, M. Steuer, L. Romero, B. N. Jin, M. Bourquin, H. Nowak, D. Vicinanza, C. Furetta, M. Napolitano, D. Duchesneau, H. S. Chen, L. Lugnier, S. Vlachos, R. Ostonen, S. N. Ganguli, A. Degré, A. Mihul, G. Alemanni, U. K. Chaturvedi, A. Lebedev, Dong-Chul Son, J. J. Blaising, J. Hirschfelder, Stefano Giagu, S. Reucroft, S. S. Gau, L. Servoli, An.A. Vorobyov, Joachim Mnich, W. Kittel, A. Buijs, J. Rodin, M. Rescigno, Y. S. Lu, A. Shvorob, M. A. Rahaman, Francesco Becattini, D. Perret-Gallix, A. Arefiev, Oleg Fedin, S. C. Yeh, R. R. McNeil, P. Achard, G. Landi, G. Carlino, L. Baksay, F. Cotorobai, M. Gataullin, T. Niessen, W. Wallraff, D. Hatzifotiadou, Laszlo Boldizsar, I. Clare, Francesca Cavallari, Giovanni Passaleva, Max Weber, A. Robohm, L. Fredj, C. Dionisi, H. J. Lee, Marcella Diemoz, O. Adriani, Imad Baptiste Laktineh, A. Stone, Lucas Taylor, Pablo Garcia-Abia, Alain Hervé, J. H. Field, Simone Paoletti, Z. A. Liu, G. Holzner, K. Riles, H. Anderhub, A. Vorvolakos, A. Bay, M. G. Alviggi, J. P. Martin, B. Stoyanov, Carlo Civinini, Y. D. Oh, I. Vetlitsky, F. Marzano, G. Coignet, W. Krenz, G. Raven, L. Xia, F. Ferroni, Francesca Nessi-Tedaldi, A. J.M. Muijs, S. Schmidt-Kaerst, M. Aguilar-Benitez, Michele Guida, B. Smith, H. J. Yang, M. Lebeau, O. Grimm, Herwig Schopper, Sw. Banerjee, Manjit Kaur, Samuel C.C. Ting, P. Duinker, M. Fabre, G. Cara Romeo, B. P. Roe, I. Korolko, J. D. Burger, Tariq Aziz, T. Siedenburg, Ren-Yuan Zhu, J. A. van Dalen, M. Della Pietra, H. Postema, S. Braccini, Luciano Barone, G. Rahal-Callot, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, M. Musy, A. Klimentov, N. Raja, Mingming Yang, G. Marian, E. Valente, G. Y. Zhu, M. Pedace, E. Shumilov, P. Molnar, T. van Rhee, C. Cecchi, B. Cozzoni, R. de Asmundis, I. Fisk, H. F. Chen, D. Kim, A. Gurtu, H. Suter, Ia Iashvili, D. H. Kim, S. Wynhoff, C-Q. Li, V. K. Gupta, Subir Sarkar, F. Brochu, D. della Volpe, V. Shoutko, M. N. Kienzle-Focacci, D. Kamrad, G. Viertel, F. C. Erné, B. De La Cruz, Crisostomo Sciacca, G. Chiefari, S. Shevchenko, A. Hasan, A. Csilling, F. DeNotaristefani, D. Prokofiev, Luisa Cifarelli, M. Pohl, F. Behner, K. Freudenreich, Hans J. Vogel, L. J. Gutay, J. Busenitz, J. M. Le Goff, U. Becker, P. Déglon, I. Duran, S. Cucciarelli, Manas Maity, Igor Vorobiev, S. Costantini, P. Berges, F. J. Eppling, L. W. Jones, C. Maña, J. A. Rubio, P. Levtchenko, Panos A Razis, S. M. Ting, P. Marchesini, V. Brigljevic, Z. Szillasi, V. Koutsenko, Simonetta Gentile, A. Balandras, J. Berdugo, H. K. Park, E. J. Sanchez, P. Raics, R. Faccini, X. L. Wang, G. G.G. Massaro, M. Pauluzzi, G. Zilizi, D. Ren, A. P. Colijn, G. Castellini, Z. F. Gong, Egidio Longo, Kajari Mazumdar, X. D. Cai, R. van Gulik, P. Extermann, Salvatore Mele, Christoph Schäfer, B. Z. Yang, H. Hofer, K. L. Tung, Speranza Falciano, F. Muheim, A. Straessner, Luca Lista, C. Palomares, Willis Lin, Sabine Riemann, Y. Uchida, Minhong Wang, M. P. Sanders, B. L. Betev, M. T. Dova, A. M. Cartacci, A. C. König, D. Dufournaud, I. H. Park, Z. Z. Xu, C. H. Lin, V. Pojidaev, S. C. Blyth, Marco Meschini, Christopher George Tully, Wolfgang Lohmann, H. Vogt, B. Bertucci, S. C. Kim, F. Anselmo, Nicanor Colino, Vladimir Andreev, D. Ruschmeier, Peter Denes, Paolo Bagnaia, F. Pierella, Federico Cindolo, A. Button, S. C. Tonwar, Frank Filthaut, Thomas Ferguson, A. C. Weber, G. Mirabelli, K. Lübelsmeyer, A. Buffini, W. J. Burger, Michael Dittmar, J. D. Swain, D. Peach, Riccardo Paramatti, A. Böhm, A. Kunin, Lamberto Luminari, Hafeez R Hoorani, R. C. Ball, Pierre Lecomte, Werner Lustermann, Charles Timmermans, A. Malinin, W. J. Metzger, D. Haas, F. L. Linde, S. Pensotti, Valery Schegelsky, Antonino Zichichi, H. Rykaczewski, Giovanni Organtini, H. Wilkens, G. S. Muanza, Jean Fay, Nicolas Produit, A. Favara, and Zheng Wang
Subjects: Physics, Quark, Nuclear and High Energy Physics, Particle physics, Gauge boson, 010308 nuclear & particles physics, 7. Clean energy, 01 natural sciences, Standard Model, Nuclear physics, Pair production, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), 010306 general physics, Energy (signal processing), Boson
Abstract: The pair production of Z bosons is studied using the data collected by the L3 detector at LEP in 1998 in $\rm e^+e^-$ collisions at a centre--of--mass energy of 189\,GeV. All the visible final states are considered and the cross section of this process is measured to be $0.74^{+0.15}_{-0.14}\,{(\rm stat.)}\,{\pm 0.04}\,{(\rm syst.)}\, \mathrm{pb}$. Final states containing b quarks are enhanced by a dedicated selection and their production cross section is found to be $0.18^{+0.09}_{-0.07}\,{(\rm stat.)}\,\pm 0.02\,{\rm (syst.)}\, \mathrm{pb}$. Both results are in agreement with the Standard Model predictions. Limits on anomalous couplings between neutral gauge bosons are derived from these measurements
Published: 1999

47. Search for charged Higgs bosons in e+e− collisions at GeV

Author: G. Schwering, Kati Lassila-Perini, V. Plyaskin, Samuel C.C. Ting, Pàl Hidas, S. Bhattacharya, A. M. Cartacci, A. Arefiev, A. C. König, P. Duinker, I. Korolko, Simonetta Gentile, M. Vivargent, R. R. McNeil, D. Dufournaud, M. T. Dova, L. Z. Sun, R. van Gulik, G. Carlino, An.A. Vorobyov, I. H. Park, Z. Z. Xu, C. H. Lin, C. J.W.P. Timmermans, P. Extermann, Salvatore Mele, Christoph Schäfer, B. Z. Yang, V. Pojidaev, H. Hofer, U. K. Chaturvedi, Tariq Aziz, K. L. Tung, F. Cesaroni, G. Holzner, Y. S. Lu, M. Campanelli, D. Prokofiev, K. Riles, A. Shvorob, H. K. Park, F. Marzano, G. Coignet, Y. Uchida, W. Krenz, Igor Vorobiev, P. Levtchenko, Minhong Wang, M. P. Sanders, B. L. Betev, G. Castellini, Speranza Falciano, O. Adriani, Imad Baptiste Laktineh, Lucas Taylor, A. Straessner, Luca Lista, H. J. Lee, L. Bellucci, Z. M. Wang, C. Palomares, Emilio Leonardi, Sabine Riemann, H. Anderhub, L. Cifarelli, Panos A Razis, Crisostomo Sciacca, Z. F. Gong, S. S. Gau, M. G. Alviggi, D. Sciarrino, J. H. Field, L. J. Gutay, G. Ambrosi, B. Stoyanov, F. Muheim, S. Schmidt-Kaerst, U. Becker, M. Gataullin, I. Duran, L. Baksay, F. Cotorobai, C. Dionisi, A. Balandras, D. Ruschmeier, Pablo Garcia-Abia, L. Malgeri, H. Vogt, P. Marchesini, J. Berdugo, R. Barillère, A. Stone, Dimitri Bourilkov, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, M. Musy, F. J. Eppling, L. W. Jones, D. Kiss, V. Brigljevic, P. Spillantini, P. H. Fisher, S. M. Ting, P. Wienemann, Georgi Sultanov, E. J. Sanchez, Alain Hervé, B. Petersen, W. Kittel, T. S. Dai, T. Angelescu, Ren-Yuan Zhu, Francesca Cavallari, A. Bay, G. Cara Romeo, B. P. Roe, R. A. Khan, Michele Guida, B. Smith, C. Cecchi, Luciano Barone, J. Casaus, E. Fiandrini, Gyorgy Vesztergombi, B. Cozzoni, S. Braccini, R. Leiste, Christoph Paus, Subir Sarkar, M. Pedace, T. van Rhee, B. De La Cruz, J. P. Martin, A. De Salvo, Carlo Civinini, V. P. Andreev, F. Brochu, D. della Volpe, R. Ramelli, G. Raven, G. Y. Zhu, L. Xia, S. X. Wu, M. Chemarin, Egidio Longo, N. Cavallo, Z. P. Zhang, M. Pohl, Peter Raics, P. Bartalini, A. Gurtu, P. G. Rancoita, E. Shumilov, M. Fabre, V. Shoutko, Dong-Hyun Kim, M. Aguilar-Benitez, B. Monteleoni, Marcella Diemoz, A. Seganti, Mingming Yang, K. Sudhakar, M. Steuer, Kajari Mazumdar, X. D. Cai, O. Grimm, T. Paul, G. M. Chen, G. Zilizi, C. G. Yang, E. Valente, Alexander Malinin, J.V. Allaby, D.W. Schmitz, G. Pascale, S. Patricelli, D. O. Prokofiev, B. N. Jin, M. A. Rahaman, Harvey B Newman, R. de Asmundis, I. Fisk, J. J. Blaising, P. Déglon, H. Nowak, D. Vicinanza, D. Hatzifotiadou, A. Hasan, J. Busenitz, D. Kim, P. de Jong, J. G. Branson, N. Shivarov, Herwig Schopper, M. von der Mey, M. N. Kienzle-Focacci, D. Perret-Gallix, Laszlo Boldizsar, H. Postema, G. Viertel, Peter Denes, J. Alcaraz, L. Fredj, Jasper Kirkby, M. A. Falagan, R. Faccini, J. B. Ye, X. L. Wang, G. G.G. Massaro, Aleandro Nisati, S. Vlachos, Hans J. Vogel, M. Pauluzzi, W. Wallraff, J. Pothier, Yu. Zalite, A. Csilling, M. Lebeau, Davide Piccolo, G. Forconi, Robert Clare, S. Villa, S. N. Ganguli, A. Degré, Paolo Bagnaia, W. T. Lin, S. Costantini, Z. A. Liu, A. Vorvolakos, P. Lebrun, S. Banerjee, Joseph Quartieri, Howard A. Stone, M. Zöller, Anna Katharina Kopp, T. Sztaricskai, D. Ren, A. Lavorato, Jozsef Toth, R. Ostonen, M. Acciarri, Y. Galaktionov, Guo-Ming Chen, J. Rodin, F. L. Linde, T. Niessen, Claudio Luci, D. Pandoulas, Roberto Battiston, A. P. Colijn, Konrad Deiters, G. B. Mohanty, Alberto Aloisio, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, A. Mihul, Aaron Dominguez, G. Alemanni, J. M. Le Goff, N. Gheordanescu, Felicitas Pauss, H. El Mamouni, F. Di Lodovico, A. Chen, D. van Dierendonck, J. Salicio, Gerjan Bobbink, B. Borgia, G. Grenier, J. Ulbricht, J. A. Rubio, W. G. Ma, P. Le Coultre, M. Basile, Z. Szillasi, S. C. Yeh, V. Koutsenko, F. C. Erné, An. Zalite, Alexei Klimentov, X. W. Tang, P. A. Piroué, Oleg Fedin, F. Pierella, M. Chamizo, D. Mangeol, J. K. Kim, S. Reucroft, D. Luckey, D. Duchesneau, H. S. Chen, L. Servoli, Max Weber, I. Clare, Raffaello D'Alessandro, Federico Cindolo, K. Freudenreich, Leonardo Merola, C-Q. Li, V. K. Gupta, L. Tauscher, G. Landi, T. Azemoon, Simone Paoletti, Marcos Cerrada, S. Cucciarelli, A. J.M. Muijs, C. Maña, Manjit Kaur, F. DeNotaristefani, A. Button, S. C. Tonwar, P. Laurikainen, F. Ferroni, Frank Filthaut, Thomas Ferguson, Manas Maity, P. Berges, Marco Meschini, S. C. Blyth, Maurizio Biasini, Marta Felcini, Francesco Becattini, Y. D. Oh, Christopher George Tully, H. J. Yang, Wolfgang Lohmann, B. Bertucci, H. F. Chen, S. Wynhoff, S. C. Kim, A. Buijs, F. Anselmo, Nicanor Colino, Riccardo Paramatti, A. Kunin, Hafeez R Hoorani, W. J. Metzger, A. C. Weber, G. Mirabelli, D. Haas, K. Lübelsmeyer, A. Buffini, Lamberto Luminari, S. Pensotti, Valery Schegelsky, Antonino Zichichi, H. Rykaczewski, Giovanni Organtini, H. Wilkens, S. Rosier-Lees, G. S. Muanza, Jean Fay, R. C. Ball, Pierre Lecomte, Nicolas Produit, Werner Lustermann, W. J. Burger, Michael Dittmar, J. D. Swain, D. Peach, A. Böhm, L. Romero, Alessandra Doria, A. Lebedev, Dong-Chul Son, M. Bourquin, J. Hirschfelder, Stefano Giagu, Joachim Mnich, P. Achard, I. Vetlitsky, A. Barczyk, A. Robohm, Adrian Biland, I. Vodopianov, A. Engler, M. Capell, Francesca Nessi-Tedaldi, H. S. Fesefeldt, E. Pistolesi, J. D. Burger, T. Siedenburg, S. R. Hou, M. Wadhwa, G. Rahal-Callot, N. Raja, G. Marian, D. J. Schotanus, Marco Pieri, Pierluigi Paolucci, H. Suter, Ia Iashvili, Giovanni Passaleva, H. Milcent, T. Moulik, D. P. Stickland, F. Ziegler, Y. H. Chang, C. Furetta, L. Lugnier, A. Favara, A. Rosca, X. Chereau, M. E. Sarakinos, M. Rescigno, P. Ladron de Guevara, J. A. van Dalen, P. Molnar, D. Kamrad, G. Chiefari, S. Shevchenko, and F. Behner
Subjects: Physics, Nuclear and High Energy Physics, Strange quark, Particle physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, 7. Clean energy, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, Charm (quantum number), Neutrino, 010306 general physics, Lepton, Boson
Abstract: A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.4 pb −1 . Higgs decays into a charm and a strange quark or into a tau lepton and its associated neutrino are considered. The observed events are consistent with the expectations from Standard Model background processes. A lower limit of 65.5 GeV on the charged Higgs mass is derived at 95% confidence level, independent of the decay branching ratio Br(H ± →τν).
Published: 1999

48. Search for heavy isosinglet neutrinos in e+e− annihilation at GeV

Author: Y. J. Pei, A. Arefiev, Aleandro Nisati, Joseph Quartieri, Marco Pieri, R. R. McNeil, G. Carlino, Pierluigi Paolucci, C-Q. Li, Z. P. Zhang, R. Ramelli, T. Angelescu, V. K. Gupta, G. Ambrosi, P. Wienemann, Georgi Sultanov, T. S. Dai, R. A. Khan, G. Holzner, M. Chemarin, N. Cavallo, G. M. Chen, F. DeNotaristefani, Kajari Mazumdar, X. D. Cai, D.W. Schmitz, G. Pascale, P. de Jong, N. Shivarov, K. Riles, Federico Cindolo, Giovanni Passaleva, J. Casaus, R. Barillère, K. Sudhakar, Aaron Dominguez, Felicitas Pauss, A. Buijs, R. Ostonen, Robert Clare, W. J. Burger, Michael Dittmar, A. Barczyk, A. Favara, M. von der Mey, W. G. Ma, F. Marzano, G. Coignet, P. Le Coultre, W. Krenz, M. Basile, D. Mangeol, J. K. Kim, D. Luckey, Manas Maity, F. Cesaroni, U. K. Chaturvedi, Y. S. Lu, J. P. Martin, A. Button, S. C. Tonwar, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, Adrian Biland, P. Marchesini, Frank Filthaut, G. Y. Zhu, E. Shumilov, J. B. Ye, Francesca Nessi-Tedaldi, P. Molnar, H. El Mamouni, V. Shoutko, S. Vlachos, Raffaello D'Alessandro, J. D. Swain, D. Peach, P. Berges, Marco Meschini, A. Shvorob, Thomas Ferguson, C. G. Yang, J. D. Burger, T. Siedenburg, D. Kiss, V. Brigljevic, G. Rahal-Callot, D. Duchesneau, H. S. Chen, F. Di Lodovico, L. Servoli, J. Pothier, N. Raja, Emilio Leonardi, D. Sciarrino, Leonardo Merola, G. Forconi, R. Faccini, Yu. Zalite, A. Rosca, Pàl Hidas, S. Bhattacharya, S. X. Wu, Vladimir Andreev, D. Ruschmeier, Dimitri Bourilkov, G. Landi, J. H. Field, Jozsef Toth, Claudio Luci, S. S. Gau, Egidio Longo, D. Pandoulas, Simone Paoletti, Z. Szillasi, J. Rodin, T. Niessen, L. Z. Sun, A. Böhm, A. C. Weber, X. L. Wang, G. G.G. Massaro, M. Pauluzzi, H. Suter, Ia Iashvili, P. Spillantini, B. Petersen, B. Stoyanov, L. Baksay, F. Cotorobai, D. O. Prokofiev, X. Chereau, Jasper Kirkby, M. A. Falagan, M. E. Sarakinos, M. Zöller, D. Ren, S. Schmidt-Kaerst, A. J.M. Muijs, Manjit Kaur, H. Milcent, D. Kamrad, V. Koutsenko, G. Grenier, W. Kittel, Anna Katharina Kopp, L. Tauscher, I. Vodopianov, A. Engler, T. Azemoon, E. Fiandrini, Gyorgy Vesztergombi, G. Mirabelli, Ren-Yuan Zhu, Luciano Barone, A. P. Colijn, M. Gataullin, Z. A. Liu, M. Steuer, Dong-Hyun Kim, D. Migani, Kati Lassila-Perini, Z. M. Wang, P. Laurikainen, Igor Vorobiev, P. Ladron de Guevara, J. Busenitz, A. Kunin, A. De Salvo, A. Vorvolakos, S. Reucroft, V. Plyaskin, Peter Denes, K. Lübelsmeyer, P. Levtchenko, G. Zilizi, G. Chiefari, A. Stone, Oleg Fedin, S. Shevchenko, Panos A Razis, T. Moulik, M. Pedace, T. van Rhee, M. Capell, C. Dionisi, Paolo Bagnaia, P. Bartalini, Marcos Cerrada, E. Valente, Pablo Garcia-Abia, Hafeez R Hoorani, S. C. Blyth, Alain Hervé, A. Gurtu, H. S. Fesefeldt, A. Seganti, Harvey B Newman, A. Bay, E. Pistolesi, A. Buffini, D. P. Stickland, F. Ziegler, Y. H. Chang, N. Gheordanescu, F. Behner, M. A. Rahaman, D. Perret-Gallix, Max Weber, B. De La Cruz, M. Vivargent, Carlo Civinini, G. Raven, L. Xia, Lamberto Luminari, Christopher George Tully, L. Malgeri, Simonetta Gentile, A. Balandras, G. Schwering, D. Dufournand, M. Aguilar-Benitez, O. Grimm, F. Ferroni, L. Romero, Yu. Galaktionov, G. Viertel, Herwig Schopper, Daijin Kim, J. M. Le Goff, H. Postema, Wolfgang Lohmann, B. Bertucci, J. Berdugo, S. C. Kim, R. C. Ball, S. Sarkar, W. J. Metzger, G. Cara Romeo, B. P. Roe, R. van Gulik, C. Cecchi, M. Bourquin, Pierre Lecomte, J. Alcaraz, F. Anselmo, Nicanor Colino, M. Rescigno, E. J. Sanchez, H. Anderhub, M. Fabre, C. Furetta, J. J. Blaising, A. Hasan, P. Déglon, Joachim Mnich, Mingming Yang, Werner Lustermann, L. Lugnier, C. J.W.P. Timmermans, P. Extermann, Salvatore Mele, F. Brochu, D. della Volpe, A. Lebedev, P. Achard, Dong-Chul Son, A. Malinin, Hans J. Vogel, J. A. Rubio, D. Haas, M. W. Gruenewald, J. Schwenke, A. Robohm, B. Smith, Christoph Schäfer, B. Z. Yang, H. Hofer, J. Hirschfelder, K. L. Tung, Francesca Cavallari, M. Pohl, S. Braccini, Stefano Giagu, I. Josa-Mutuberria, M. Kräber, P. Lacenter, W. T. Lin, S. Costantini, A. Mihul, T. Paul, Samuel C.C. Ting, P. Duinker, S. Pensotti, Valery Schegelsky, Antonino Zichichi, I. Korolko, R. de Asmundis, H. Rykaczewski, Giovanni Organtini, I. Fisk, G. Alemanni, A. Klimentov, P. Lebrun, F. C. Erné, H. K. Park, I. Vetlitsky, H. Wilkens, J. G. Branson, S. Rosier-Lees, S. Villa, A. Lavorato, B. Cozzoni, G. Castellini, G. S. Muanza, K. Freudenreich, M. Campanelli, F. Muheim, An.A. Vorobyov, S. C. Yeh, J. A. van Dalen, Jean Fay, S. N. Ganguli, A. Degré, Z. F. Gong, M. Acciarri, Guo-Ming Chen, Alessandra Doria, S. Cucciarelli, F. L. Linde, Nicolas Produit, C. Maña, H. J. Lee, O. Adriani, Imad Baptiste Laktineh, Lucas Taylor, M. G. Alviggi, M. N. Kienzle-Focacci, A. Chen, D. van Dierendonck, A. Csilling, M. Lebeau, Davide Piccolo, J. Salicio, R. Leiste, Christoph Paus, S. R. Hou, B. Monteleoni, M. Wadhwa, D. J. Schotanus, Howard A. Stone, Roberto Battiston, G. Marian, Gerjan Bobbink, B. Borgia, J. Ulbricht, I. Clare, Tariq Aziz, Crisostomo Sciacca, P. G. Rancoita, Marcella Diemoz, B. N. Jin, H. Nowak, D. Vicinanza, Maurizio Biasini, Marta Felcini, W. Wallraff, Francesco Becattini, S. Banerjee, Y. D. Oh, H. J. Yang, Konrad Deiters, G. B. Mohanty, Alberto Aloisio, H. F. Chen, S. Wynhoff, X. W. Tang, P. A. Piroué, M. Chamizo, An. Zalite, L. J. Gutay, U. Becker, I. Duran, H. Vogt, F. J. Eppling, L. W. Jones, P. H. Fisher, S. M. Ting, J.V. Allaby, S. Patricelli, D. Hatzifotiadou, Laszlo Boldizsar, L. Fredj, D. Prokofiev, Luisa Cifarelli, Y. Uchida, Minhong Wang, M. P. Sanders, B. L. Betev, Speranza Falciano, A. Straessner, Luca Lista, C. Palomares, Sabine Riemann, M. T. Dova, A. M. Cartacci, A. C. König, I. H. Park, Z. Z. Xu, C. H. Lin, and V. Pojidaev
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, High Energy Physics::Phenomenology, 01 natural sciences, 7. Clean energy, First generation, Standard Model, Nuclear physics, Gauge group, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, Heavy neutrino, Nuclear Experiment, 010306 general physics, Lepton
Abstract: A search for heavy neutrinos that are isosinglets under the standard $SU(2)_L$ gauge group is made at center-of-mass energies 130 $< \sqrt{s}
Published: 1999

49. Search for the standard model Higgs boson in e+e− interactions at GeV

Author: B. Monteleoni, M. Campanelli, G. Ambrosi, Francesca Nessi-Tedaldi, Howard A. Stone, P. Wienemann, Georgi Sultanov, T. S. Dai, R. A. Khan, Roberto Battiston, G. Marian, Gerjan Bobbink, B. Borgia, J. Ulbricht, I. Clare, Lamberto Luminari, Raffaello D'Alessandro, H. J. Lee, Konrad Deiters, G. B. Mohanty, R. Barillère, Vladimir Andreev, D. Ruschmeier, J. D. Burger, Alberto Aloisio, T. Siedenburg, Maurizio Biasini, Marta Felcini, Leonardo Merola, M. Chemarin, N. Cavallo, A. Lebedev, Pàl Hidas, S. Bhattacharya, L. Tauscher, G. Rahal-Callot, A. Favara, Dong-Chul Son, T. Azemoon, F. Cesaroni, R. C. Ball, Y. J. Pei, Pierre Lecomte, Samuel C.C. Ting, P. Duinker, I. Korolko, G. M. Chen, E. Valente, Francesco Becattini, J. Hirschfelder, Y. Uchida, A. Klimentov, F. C. Erné, M. Rescigno, X. W. Tang, N. Raja, Stefano Giagu, J.V. Allaby, P. A. Piroué, L. Z. Sun, S. Patricelli, D. O. Prokofiev, G. Schwering, Jasper Kirkby, M. A. Falagan, Dimitri Bourilkov, J. Busenitz, Y. D. Oh, Werner Lustermann, Marcos Cerrada, G. Viertel, Emilio Leonardi, M. Chamizo, P. Spillantini, D. Hatzifotiadou, Laszlo Boldizsar, Tariq Aziz, A. Malinin, K. Freudenreich, Minhong Wang, Z. Szillasi, M. P. Sanders, B. L. Betev, H. J. Yang, M. Zöller, K. Sudhakar, Anna Katharina Kopp, Marco Pieri, Peter Denes, Paolo Bagnaia, A. Rosca, X. Chereau, D. Sciarrino, Hans J. Vogel, V. Koutsenko, M. E. Sarakinos, R. Faccini, S. C. Blyth, Yu. Galaktionov, L. Fredj, B. Petersen, Pierluigi Paolucci, A. C. Weber, Aleandro Nisati, J. Schwenke, W. T. Lin, H. F. Chen, S. Costantini, X. L. Wang, M. von der Mey, An.A. Vorobyov, J. B. Ye, Kati Lassila-Perini, V. Plyaskin, J. Alcaraz, L. Baksay, F. Cotorobai, S. S. Gau, I. Vetlitsky, A. Barczyk, E. Fiandrini, S. Cucciarelli, G. G.G. Massaro, Z. M. Wang, H. Anderhub, C. Dionisi, C. Maña, Joseph Quartieri, Pablo Garcia-Abia, H. K. Park, P. Marchesini, S. Wynhoff, M. Pauluzzi, C-Q. Li, U. K. Chaturvedi, O. Adriani, G. Forconi, S. X. Wu, Christopher George Tully, D. Dufournand, J. A. van Dalen, Imad Baptiste Laktineh, Lucas Taylor, P. Ladron de Guevara, Speranza Falciano, V. K. Gupta, Francesca Cavallari, Gyorgy Vesztergombi, M. Gataullin, D. Kiss, V. Brigljevic, A. Stone, Crisostomo Sciacca, Adrian Biland, Giovanni Passaleva, M. G. Alviggi, H. Suter, Ia Iashvili, Y. S. Lu, Alain Hervé, A. Bay, Alessandra Doria, G. Mirabelli, Jozsef Toth, A. Straessner, Luca Lista, L. Malgeri, Wolfgang Lohmann, G. Castellini, B. Bertucci, D. Ren, G. Alemanni, Claudio Luci, D. Pandoulas, S. C. Kim, A. Buijs, F. DeNotaristefani, T. Angelescu, J. Casaus, B. De La Cruz, D. Migani, F. Ferroni, A. Shvorob, Carlo Civinini, Aaron Dominguez, G. Raven, K. Lübelsmeyer, D. Prokofiev, Luisa Cifarelli, Felicitas Pauss, F. Anselmo, Nicanor Colino, G. Cara Romeo, B. P. Roe, A. P. Colijn, S. C. Yeh, Z. P. Zhang, C. Palomares, P. G. Rancoita, G. Grenier, Z. F. Gong, J. J. Blaising, Kajari Mazumdar, C. G. Yang, P. Déglon, Marcella Diemoz, J. Pothier, Yu. Zalite, A. De Salvo, B. N. Jin, L. Xia, M. Aguilar-Benitez, L. J. Gutay, O. Grimm, Herwig Schopper, A. Buffini, S. Reucroft, W. G. Ma, P. Le Coultre, U. Becker, Dong-Hyun Kim, M. Basile, C. Cecchi, Federico Cindolo, F. Brochu, J. H. Field, Igor Vorobiev, X. D. Cai, Sabine Riemann, H. Nowak, P. Levtchenko, G. Zilizi, D. Vicinanza, I. Vodopianov, Manas Maity, Daijin Kim, S. R. Hou, A. Button, M. Wadhwa, L. Romero, I. Duran, B. Smith, H. Postema, Panos A Razis, W. J. Burger, W. Kittel, D. della Volpe, H. Vogt, P. Berges, M. T. Dova, M. Pohl, D. J. Schotanus, A. M. Cartacci, C. Furetta, S. C. Tonwar, A. Engler, B. Stoyanov, A. C. König, M. Capell, Marco Meschini, S. Schmidt-Kaerst, Frank Filthaut, L. Lugnier, P. Bartalini, S. Sarkar, F. J. Eppling, L. W. Jones, P. H. Fisher, Michael Dittmar, S. M. Ting, D. Mangeol, J. K. Kim, D. Luckey, Thomas Ferguson, H. S. Fesefeldt, Simonetta Gentile, Z. A. Liu, A. Vorvolakos, E. Pistolesi, Ren-Yuan Zhu, Luciano Barone, A. Kunin, W. Wallraff, M. Bourquin, A. Balandras, J. Berdugo, S. Braccini, R. Ostonen, J. D. Swain, D. Peach, T. Paul, M. Fabre, A. Seganti, J. G. Branson, S. Villa, A. Lavorato, I. H. Park, P. Molnar, Mingming Yang, E. J. Sanchez, Z. Z. Xu, C. H. Lin, M. Pedace, T. van Rhee, S. Vlachos, S. N. Ganguli, P. Lacenter, V. Pojidaev, Hafeez R Hoorani, M. Steuer, J. M. Le Goff, A. Gurtu, J. Rodin, Joachim Mnich, P. Achard, S. Banerjee, T. Niessen, A. Böhm, An. Zalite, A. Degré, Harvey B Newman, J. P. Martin, M. N. Kienzle-Focacci, N. Gheordanescu, D. Kamrad, W. J. Metzger, J. A. Rubio, G. Y. Zhu, E. Shumilov, A. Robohm, A. Hasan, G. Chiefari, A. Csilling, S. Shevchenko, M. Lebeau, Davide Piccolo, V. Shoutko, F. Behner, G. Landi, D. Haas, R. de Asmundis, I. Fisk, H. Milcent, M. A. Rahaman, P. Lebrun, D. Perret-Gallix, Simone Paoletti, M. Acciarri, Guo-Ming Chen, A. J.M. Muijs, F. L. Linde, S. Pensotti, Valery Schegelsky, Antonino Zichichi, T. Moulik, Manjit Kaur, A. Chen, D. van Dierendonck, J. Salicio, M. Vivargent, H. Rykaczewski, Giovanni Organtini, H. Wilkens, P. Laurikainen, S. Rosier-Lees, D. P. Stickland, F. Ziegler, Y. H. Chang, M. W. Gruenewald, I. Josa-Mutuberria, M. Kräber, G. S. Muanza, A. Mihul, Jean Fay, Egidio Longo, Nicolas Produit, B. Cozzoni, H. El Mamouni, F. Di Lodovico, R. Ramelli, A. Arefiev, R. R. McNeil, D.W. Schmitz, G. Pascale, P. de Jong, G. Carlino, N. Shivarov, Robert Clare, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, Oleg Fedin, G. Holzner, K. Riles, F. Marzano, Max Weber, G. Coignet, W. Krenz, F. Muheim, R. van Gulik, C. J.W.P. Timmermans, P. Extermann, Salvatore Mele, Christoph Schäfer, B. Z. Yang, H. Hofer, K. L. Tung, D. Duchesneau, H. S. Chen, L. Servoli, R. Leiste, and Christoph Paus
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Elementary particle, 01 natural sciences, Lower limit, Standard Model, Nuclear physics, 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, 010306 general physics, Energy (signal processing)
Abstract: A search for the Standard Model Higgs boson is carried out on $176.4\ \mathrm{pb}^{-1}$ of data collected by the L3 detector at a center-of-mass energy of $189 \mathrm{\ Ge\kern -0.1em V}$. The data are consistent with the expectations of Standard Model processes and no evidence of a Higgs signal is observed. Combining the results of this search with those at lower center-of-mass energies, a lower limit on the mass of the Standard Model Higgs boson of $95.3\mathrm{\ Ge\kern -0.1em V}$ is set at the 95\% confidence level.
Published: 1999

50. Search for scalar leptons in e+e− collisions at GeV

Author: Marta Felcini, R. Leiste, Christoph Paus, Francesco Becattini, E. Valente, Y. D. Oh, A. Vorvolakos, M. Vivargent, B. Monteleoni, A. Barczyk, G. Viertel, Adrian Biland, S. Wynhoff, J. M. Le Goff, N. Gheordanescu, Hans J. Vogel, J.V. Allaby, J. A. Rubio, S. Patricelli, Kati Lassila-Perini, V. Plyaskin, A. Arefiev, S. Petrak, Egidio Longo, J. Schwenke, W. T. Lin, S. Costantini, Pàl Hidas, S. Bhattacharya, D. Hatzifotiadou, Xl Wang, Laszlo Boldizsar, S. Sakar, L. Z. Sun, P. Molnar, W.G. Ma, S. C. Blyth, H. Anderhub, Lamberto Luminari, R. Ostonen, L. Fredj, M. T. Dova, T. Paul, J. G. Branson, An. Zalite, R. R. McNeil, Alessandra Doria, Gobinda Majumder, A. Buijs, Kajari Mazumdar, G. Forconi, V. K. Gupta, Dimitri Bourilkov, M. Campanelli, B. Smith, X. D. Cai, P. Spillantini, Marco Meschini, Raffaello D'Alessandro, S. Villa, A. Lavorato, Davide Piccolo, B. Petersen, S. Braccini, Y. S. Lu, Howard A. Stone, S. N. Ganguli, Gianpaolo Carlino, F. DeNotaristefani, U. K. Chaturvedi, Francesca Nessi-Tedaldi, E. Fiandrini, Gyorgy Vesztergombi, F. Cesaroni, Y. Uchida, R. C. Ball, Jozsef Toth, Claudio Luci, Pierre Lecomte, I. Vodopianov, A. Engler, Marcella Diemoz, Pablo Garcia-Abia, Alain Hervé, A. Bay, Carlo Civinini, G. Raven, L. Xia, L. J. Gutay, U. Becker, I. Duran, A. Degré, H. S. Chen, P. Zemp, D. Pandoulas, A. Shvorob, Francesca Cavallari, Leonardo Merola, L. Tauscher, Y. J. Pei, Emilio Leonardi, A. De Salvo, Roberto Battiston, M. Aguilar-Benitez, D. Sciarrino, Herwig Schopper, H. Postema, H. Vogt, R. de Asmundis, F. J. Eppling, L. W. Jones, J. D. Burger, W. Kittel, T. Siedenburg, I. Fisk, P. Bartalini, Manas Maity, P. Berges, S. Pensotti, Valery Schegelsky, Antonino Zichichi, G. Rahal-Callot, Werner Lustermann, M. Capell, N. Raja, D.W. Schmitz, G. Pascale, F. Cotorobai, T. Azemoon, Minhong Wang, P. H. Fisher, S. M. Ting, G. Marian, Gerjan Bobbink, D. Kim, A. Seganti, P. de Jong, P. G. Rancoita, N. Shivarov, M. P. Sanders, B. L. Betev, H. Rykaczewski, G. Holzner, Giovanni Organtini, Harvey B Newman, K. Riles, R. Barillère, J. M. You, Robert Clare, P. Marchesini, H. S. Fesefeldt, E. Pistolesi, D. Kiss, V. Brigljevic, Christopher George Tully, H. Wilkens, G. Grenier, B. N. Jin, S. Rosier-Lees, A. Malinin, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, F. Marzano, J. Ulbricht, M. Napolitano, D. Dufournand, Marcos Cerrada, H. Suter, Ia Iashvili, M. Fabre, J. H. Field, L. Lugnier, H. Nowak, G. Coignet, D. Vicinanza, W. Krenz, Jean Fay, H. El Mamouni, C. Furetta, F. Di Lodovico, N. Scholz, S. R. Hou, A. M. Cartacci, Pierluigi Paolucci, J. P. Martin, D. Duchesneau, C. Li, L. Romero, L. Servoli, M. Yang, D. O. Prokofiev, A. C. König, W. J. Burger, S. Reucroft, B. Stoyanov, Wolfgang Lohmann, Z. Szillasi, M. Wadhwa, D. J. Schotanus, B. Bertucci, G.S. Muanza, B. Borgia, Yu. Galaktionov, G.M. Chen, S. Schmidt-Kaerst, J. Alcaraz, Jasper Kirkby, M. A. Falagan, S. C. Kim, G. Cara Romeo, V. Koutsenko, Nicolas Produit, X. W. Tang, G. Landi, Dong-Hyun Kim, G. Zilizi, Simone Paoletti, M. Bourquin, B. De La Cruz, Nicola Cavallo, M. Zöller, Anna Katharina Kopp, Samuel C.C. Ting, Joachim Mnich, Michael Dittmar, I. Clare, Bz Yang, Oleg Fedin, E. Shumilov, D. Migani, Giovanni Passaleva, Zhenghao Xu, A. Lebedev, Dong-Chul Son, P. Achard, F. Anselmo, Ren-Yuan Zhu, A. Kunin, Luciano Barone, Nicanor Colino, H. K. Park, G.Y. Zhu, A. Robohm, W. Wallraff, G. Castellini, Luisa Cifarelli, Max Weber, A. Favara, I. H. Park, J. Hirschfelder, Stefano Giagu, R. van Gulik, C. H. Lin, A. J.M. Muijs, M. Pedace, V. Shoutko, T. van Rhee, Sw. Banerjee, Manjit Kaur, C. Dionisi, C. J.W.P. Timmermans, P. Extermann, Z. F. Gong, Zheng Wang, Hafeez R Hoorani, M. W. Gruenewald, V. Pojidaev, A. Mihul, G. Alemanni, J. D. Swain, I. Josa-Mutuberria, H. Milcent, S. Banerjee, L. Malgeri, A. Gurtu, Federico Cindolo, W. W. Kinnison, S. C. Yeh, M. N. Kienzle-Focacci, T. Moulik, B. P. Roe, P. Laurikainen, D. Peach, Salvatore Mele, H.J. Yang, Christoph Schäfer, H. Hofer, X. Chereau, M.E. Sarakinos, A. Csilling, A. Hasan, M. Lebeau, C. Cecchi, W. J. Metzger, I. Vetlitsky, F. Brochu, K. Sudhakar, B. Cozzoni, A. Button, D. della Volpe, A. Straessner, Konrad Deiters, G. Chen, D. P. Stickland, F. Ziegler, Y. H. Chang, Luca Lista, A. Böhm, M. von der Mey, Alberto Aloisio, P. Lebrun, S. C. Tonwar, J. B. Ye, M. Pohl, A. C. Weber, P. Ladron de Guevara, C. Palomares, D. Haas, Frank Filthaut, S. X. Wu, Sabine Riemann, J. J. Blaising, M. Acciarri, L. Baksay, G. Mirabelli, H.F. Chen, P. A. Piroué, M. Chamizo, F. Muheim, Zhidong Zhang, Tariq Aziz, K. Lübelsmeyer, A. Chen, D. van Dierendonck, J. Salicio, D. Ruschmeier, P. Déglon, Speranza Falciano, A. Buffini, Thomas Ferguson, G. Ambrosi, C. G. Yang, Igor Vorobiev, M. Steuer, Crisostomo Sciacca, Marco Pieri, D. Kamrad, P. Levtchenko, K. Banicz, D. Perret-Gallix, G. Chiefari, S. Shevchenko, Panos A Razis, F. Behner, M. Rescigno, S. S. Gau, J. Busenitz, Peter Denes, A. Balandras, Paolo Bagnaia, J. Berdugo, M. Gataullin, K. L. Tung, E. J. Sanchez, A. Stone, J. A. van Dalen, R. Faccini, G. G.G. Massaro, P. Duinker, I. Korolko, Simonetta Gentile, A. Klimentov, M. Pauluzzi, H.J. Lee, D. Ren, J. Shukla, A. P. Colijn, Aleandro Nisati, Joseph Quartieri, G. Schwering, P. Wienemann, Georgi Sultanov, Fl Linde, T. S. Dai, R. A. Khan, An.A. Vorobyov, V. P. Andreev, M. Chemarin, Aaron Dominguez, Felicitas Pauss, Z.A. Liu, O. Adriani, Imad Baptiste Laktineh, P. Le Coultre, M. Basile, Lucas Taylor, M. G. Alviggi, D. Mangeol, J. K. Kim, T. Angelescu, D. Luckey, J. Casaus, P. Lacentre, J. Pothier, Yu. Zalite, F. C. Erné, K. Freudenreich, C. Maña, F. Ferroni, S. Vlachos, J. Rodin, J. S. Kapustinsky, T. Niessen, and Maurizio Biasini
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Scalar (physics), Parameter space, 01 natural sciences, Lower limit, R-parity, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Minimal Supersymmetric Standard Model, Lepton
Abstract: We report the result of a search for scalar leptons in e+e−collisions at 183 GeV centre-of-mass energy at LEP. No evidence for such particles is found in a data sample of 55.2 pb−1. Improved upper limits are set on the production cross-sections for stable as well as unstable scalar leptons. New exclusion contours in the parameter space of the Minimal Supersymmetric Standard Model are derived, as well as new lower limits on scalar lepton masses.
Published: 1999

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