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1. Observation of the temperature and barometric effects on the cosmic muon flux by the DANSS detector

Author

I. Alekseev, V. Belov, V. Brudanin, A. Bystryakov, M. Danilov, V. Egorov, D. Filosofov, M. Fomina, S. Kazartsev, A. Kobyakin, A. Kuznetsov, I. Machikhiliyan, D. Medvedev, V. Nesterov, I. Rozova, N. Rumyantseva, V. Rusinov, E. Samigullin, Ye. Shevchik, M. Shirchenko, Yu. Shitov, N. Skrobova, A. Starostin, D. Svirida, E. Tarkovsky, E. Yakushev, I. Zhitnikov, and D. Zinatulina

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract The DANSS detector (Alekseev et al. in JINST 11:P11011, 2016) is located directly below a commercial reactor core at the Kalinin Nuclear Power Plant. Such a position provides an overburden about 50 m.w.e. in vertical direction. In terms of the cosmic rays it occupies an intermediate position between surface and underground detectors. The sensitive volume of the detector is a cubic meter of plastic scintillator with fine segmentation and combined PMT and SiPM readout, surrounded by multilayer passive and active shielding. The detector can reconstruct muon tracks passing through its sensitive volume. The main physics goal of the DANSS experiment implies the antineutrino spectra measurements at various distances from the source. This is achieved by means of a lifting platform so that the data is taken in three positions – 10.9, 11.9 and 12.9 meters from the reactor core. The muon data were collected for nearly four calendar years. The overburden parameters $$\langle E_{thr}\cos \theta \rangle $$ ⟨ E thr cos θ ⟩ and $$\langle E_{thr} \rangle $$ ⟨ E thr ⟩ , as well as the temperature and barometric correlation coefficients are evaluated separately for the three detector positions and, in each position, in three ranges of the zenith angle – for nearly vertical muons with $$\cos \theta >0.9$$ cos θ > 0.9 , for nearly horizontal muons with $$\cos \theta

Published
2022
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2. Search for sterile neutrinos at the DANSS experiment

Author

I. Alekseev, V. Belov, V. Brudanin, M. Danilov, V. Egorov, D. Filosofov, M. Fomina, Z. Hons, S. Kazartsev, A. Kobyakin, A. Kuznetsov, I. Machikhiliyan, D. Medvedev, V. Nesterov, A. Olshevsky, N. Pogorelov, D. Ponomarev, I. Rozova, N. Rumyantseva, V. Rusinov, E. Samigullin, Ye. Shevchik, M. Shirchenko, Yu. Shitov, N. Skrobova, A. Starostin, D. Svirida, E. Tarkovsky, J. Vlášek, I. Zhitnikov, and D. Zinatulina

Subjects
Physics, QC1-999
Abstract

DANSS is a highly segmented 1 m3 plastic scintillator detector. Its 2500 one meter long scintillator strips have a Gd-loaded reflective cover. The DANSS detector is placed under an industrial 3.1 GWth reactor of the Kalinin Nuclear Power Plant 350 km NW from Moscow. The distance to the core is varied on-line from 10.7 m to 12.7 m. The reactor building provides about 50 m water-equivalent shielding against the cosmic background. DANSS detects almost 5000 ν˜e per day at the closest position with the cosmic background less than 3%. The inverse beta decay process is used to detect ν˜e. Sterile neutrinos are searched for assuming the 4ν model (3 active and 1 sterile ν). The exclusion area in the Δm142,sin2⁡2θ14 plane is obtained using a ratio of positron energy spectra collected at different distances. Therefore results do not depend on the shape and normalization of the reactor ν˜e spectrum, as well as on the detector efficiency. Results are based on 966 thousand antineutrino events collected at three different distances from the reactor core. The excluded area covers a wide range of the sterile neutrino parameters up to sin2⁡2θ14

Published
2018
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3. Hadronic Energy Resolution of a Combined High Granularity Scintillator Calorimeter System

Author

Djamel Eddine Boumediene, T. Tubokawa, P. Buhmann, C. Neubüser, H. Videau, M. Rubio-Roy, E. Brianne, I. Sekiya, M. Danilov, F. Krivan, M. Götze, E. Calvo Alamillo, Kiyotomo Kawagoe, K. Francis, N. van der Kolk, T. Sakuma, H. Yamashiro, C. Graf, P. Göttlicher, A. Drutskoy, Alberto Ribon, S. Bilokin, Taikan Suehara, Shih-Fu Chang, Huong Lan Tran, Tamaki Yoshioka, V. Balagura, G. C. Blazey, M. Kovalcuk, J-C. Brient, D. H. Kim, K. Kotera, A. Provenza, Matthew Wing, M. Janata, V. Ivantchenko, B. Li, Lei Xia, O. Hartbrich, Frank Simon, M. Nishiyama, D. Yu, C. Zeitnitz, Gunter Folger, Roman Pöschl, J. J. Navarrete, John Apostolakis, Frédéric Magniette, Marina Chadeeva, M. Frotin, A. Verdugo, J. Nanni, M. Matysek, J. Smolik, M. Anduze, S. Schuwalow, H. Ch Schultz-Coulon, D. Lomidze, A. Kaplan, Y. D. Oh, K. Gadow, R. Cornat, E. Popova, Vladimir Rusinov, Graham Wilson, E. Tarkovsky, J. C. Marin, V. Zutshi, I. Polak, J. Zuklin, K. Kruger, J. Kvasnicka, M. Reinecke, V. Uzhinskiy, T. H. Tran, A.S. Dyshkant, S. Lu, D. Jeans, M. C. Fouz, J. Puerta Pelayo, V. Francais, Abdul Rauf Khan, S. Laurien, S. Uozumi, Vaclav Vrba, A. Elkhalii, K. Shpak, D. J. Kong, J. Bonis, Dirk Zerwas, O. Bach, J. Zálešák, S. Tozuka, E. Becheva, Y. Israeli, Erika Garutti, F. Richard, J. Cvach, E. Edy, A. Irles, F. Sefkow, Yuji Sudo, Jose Repond, L. Emberger, Vincent Boudry, M. Gabriel, H. Windel, Tohru Takeshita, M. Szalay, A. Ebrahimi, F. Gastaldi, A. Thiebault, Laboratoire de Physique de Clermont (LPC), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CALICE, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)

Subjects
Photomultiplier, data analysis method, energy resolution: momentum dependence, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Hadron, pi-: energy spectrum, FOS: Physical sciences, Scintillator, 01 natural sciences, programming, 030218 nuclear medicine & medical imaging, Nuclear physics, pi: irradiation, 03 medical and health sciences, 0302 clinical medicine, statistical analysis, calorimeter: hadronic, 0103 physical sciences, ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, Nuclear Experiment, physics.ins-det, Instrumentation, Mathematical Physics, scintillation counter, Physics, Muon, Calorimeter (particle physics), 010308 nuclear & particles physics, CALICE, showers: spatial distribution, Instrumentation and Detectors (physics.ins-det), calorimeter: electromagnetic, statistics, Scintillation counter, GEANT, High Energy Physics::Experiment, Granularity, muon: tracking detector, Energy (signal processing)
Abstract

This paper presents results obtained with the combined CALICE Scintillator Electromagnetic Calorimeter, Analogue Hadronic Calorimeter and Tail Catcher & Muon Tracker, three high granularity scintillator-SiPM calorimeter prototypes. The response of the system to pions with momenta between 4 GeV/c and 32 GeV/c is analysed, including the energy response, resolution, and longitudinal shower profiles. The results of a software compensation technique based on weighting according to hit energy are compared to those of a standard linear energy reconstruction. The results are compared to predictions of the GEANT4 physics lists QGSP_BERT_HP and FTFP_BERT_HP., 31 pages, 41 figures

Published
2018
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4. Validation of GEANT4 Monte Carlo Models with a Highly Granular Scintillator-Steel Hadron Calorimeter

Author

C Adloff, J Blaha, J -J Blaising, C Drancourt, A Espargilière, R Gaglione, N Geffroy, Y Karyotakis, J Prast, G Vouters, K Francis, J Repond, J Schlereth, J Smith, L Xia, E Baldolemar, J Li, S T Park, M Sosebee, A P White, J Yu, T Buanes, G Eigen, Y Mikami, N K Watson, G Mavromanolakis, M A Thomson, D R Ward, W Yan, D Benchekroun, A Hoummada, Y Khoulaki, J Apostolakis, A Dotti, G Folger, V Ivantchenko, V Uzhinskiy, M Benyamna, C Cârloganu, F Fehr, P Gay, S Manen, L Royer, G C Blazey, A Dyshkant, J G R Lima, V Zutshi, J -Y Hostachy, L Morin, U Cornett, D David, G Falley, K Gadow, P Göttlicher, C Günter, B Hermberg, S Karstensen, F Krivan, A -I Lucaci-Timoce, S Lu, B Lutz, S Morozov, V Morgunov, M Reinecke, F Sefkow, P Smirnov, M Terwort, A Vargas-Trevino, N Feege, E Garutti, I Marchesini, M Ramilli, P Eckert, T Harion, A Kaplan, H -Ch Schultz-Coulon, W Shen, R Stamen, B Bilki, E Norbeck, Y Onel, G W Wilson, K Kawagoe, P D Dauncey, A -M Magnan, V Bartsch, M Wing, F Salvatore, E Calvo Alamillo, M -C Fouz, J Puerta-Pelayo, B Bobchenko, M Chadeeva, M Danilov, A Epifantsev, O Markin, R Mizuk, E Novikov, V Popov, V Rusinov, E Tarkovsky, N Kirikova, V Kozlov, Y Soloviev, P Buzhan, A Ilyin, V Kantserov, V Kaplin, A Karakash, E Popova, V Tikhomirov, C Kiesling, K Seidel, F Simon, C Soldner, M Szalay, M Tesar, L Weuste, M S Amjad, J Bonis, S Callier, S Conforti di Lorenzo, P Cornebise, Ph Doublet, F Dulucq, J Fleury, T Frisson, N van der Kolk, H Li, G Martin-Chassard, F Richard, Ch de la Taille, R Pöschl, L Raux, J Rouëné, N Seguin-Moreau, M Anduze, V Boudry, J-C Brient, D Jeans, P Mora de Freitas, G Musat, M Reinhard, M Ruan, H Videau, B Bulanek, J Zacek, J Cvach, P Gallus, M Havranek, M Janata, J Kvasnicka, D Lednicky, M Marcisovsky, I Polak, J Popule, L Tomasek, M Tomasek, P Ruzicka, P Sicho, J Smolik, V Vrba, J Zalesak, B Belhorma, H Ghazlane, T Takeshita, S Uozumi, M Götze, O Hartbrich, J Sauer, S Weber, C Zeitnitz, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), CALICE, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Highly Granular Calorimetry [9.5], Hadron, Monte Carlo method, FOS: Physical sciences, Scintillator, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Silicon photomultiplier, Pion, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, physics.ins-det, Instrumentation, Mathematical Physics, Advanced infrastructures for detector R&D [9], Physics, Range (particle radiation), hep-ex, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), Computational physics, Calorimeter, High Energy Physics::Experiment, Granularity, Particle Physics - Experiment
Abstract

Calorimeters with a high granularity are a fundamental requirement of the Particle Flow paradigm. This paper focuses on the prototype of a hadron calorimeter with analog readout, consisting of thirty-eight scintillator layers alternating with steel absorber planes. The scintillator plates are finely segmented into tiles individually read out via Silicon Photomultipliers. The presented results are based on data collected with pion beams in the energy range from 8GeV to 100GeV. The fine segmentation of the sensitive layers and the high sampling frequency allow for an excellent reconstruction of the spatial development of hadronic showers. A comparison between data and Monte Carlo simulations is presented, concerning both the longitudinal and lateral development of hadronic showers and the global response of the calorimeter. The performance of several GEANT4 physics lists with respect to these observables is evaluated. Calorimeters with a high granularity are a fundamentalrequirement of the Particle Flow paradigm. This paper focuses on theprototype of a hadron calorimeter with analog readout, consisting ofthirty-eight scintillator layers alternating with steel absorberplanes. The scintillator plates are finely segmented into tilesindividually read out via Silicon Photomultipliers. The presentedresults are based on data collected with pion beams in the energyrange from 8 GeV to 100 GeV. The fine segmentation of thesensitive layers and the high sampling frequency allow for anexcellent reconstruction of the spatial development of hadronicshowers. A comparison between data and Monte Carlo simulations ispresented, concerning both the longitudinal and lateral developmentof hadronic showers and the global response of the calorimeter. Theperformance of several GEANT4 physics lists with respect tothese observables is evaluated. Calorimeters with a high granularity are a fundamental requirement of the Particle Flow paradigm. This paper focuses on the prototype of a hadron calorimeter with analog readout, consisting of thirty-eight scintillator layers alternating with steel absorber planes. The scintillator plates are finely segmented into tiles individually read out via Silicon Photomultipliers. The presented results are based on data collected with pion beams in the energy range from 8GeV to 100GeV. The fine segmentation of the sensitive layers and the high sampling frequency allow for an excellent reconstruction of the spatial development of hadronic showers. A comparison between data and Monte Carlo simulations is presented, concerning both the longitudinal and lateral development of hadronic showers and the global response of the calorimeter. The performance of several GEANT4 physics lists with respect to these observables is evaluated.

Published
2013
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5. Construction and performance of a silicon photomultiplier/extruded scintillator tail-catcher and muon-tracker

Author

C Adloff, J Blaha, J -J Blaising, C Drancourt, A Espargilière, R Gaglione, N Geffroy, Y Karyotakis, J Prast, G Vouters, B Bilki, K Francis, J Repond, J Smith, L Xia, E Baldolemar, J Li, S T Park, M Sosebee, A P White, J Yu, T Buanes, G Eigen, Y Mikami, N K Watson, G Mavromanolakis, M A Thomson, D R Ward, W Yan, D Benchekroun, A Hoummada, Y Khoulaki, M Benyamna, C Cârloganu, F Fehr, P Gay, S Manen, L Royer, G C Blazey, S Boona, D Chakraborty, A Dyshkant, D Hedin, J G R Lima, J Powell, V Rykalin, N Scurti, M Smith, N Tran, V Zutshi, J -Y Hostachy, L Morin, U Cornett, D David, J Dietrich, G Falley, K Gadow, P Göttlicher, C Günter, B Hermberg, S Karstensen, F Krivan, A -I Lucaci-Timoce, S Lu, B Lutz, I Marchesini, S Morozov, V Morgunov, M Reinecke, F Sefkow, P Smirnov, M Terwort, A Vargas-Trevino, N Feege, E Garutti, P Eckert, A Kaplan, H -Ch Schultz-Coulon, W Shen, R Stamen, A Tadday, E Norbeck, Y Onel, G W Wilson, K Kawagoe, S Uozumi, P D Dauncey, A -M Magnan, V Bartsch, M Wing, F Salvatore, E Calvo Alamillo, M -C Fouz, J Puerta-Pelayo, B Bobchenko, M Chadeeva, M Danilov, A Epifantsev, O Markin, R Mizuk, E Novikov, V Rusinov, E Tarkovsky, N Kirikova, V Kozlov, Y Soloviev, P Buzhan, B Dolgoshein, A Ilyin, V Kantserov, V Kaplin, A Karakash, E Popova, S Smirnov, A Frey, C Kiesling, K Seidel, F Simon, C Soldner, L Weuste, J Bonis, B Bouquet, S Callier, P Cornebise, Ph Doublet, F Dulucq, M Faucci Giannelli, J Fleury, H Li, G Martin-Chassard, F Richard, Ch de la Taille, R Pöschl, L Raux, N Seguin-Moreau, F Wicek, M Anduze, V Boudry, J-C Brient, D Jeans, P Mora de Freitas, G Musat, M Reinhard, M Ruan, H Videau, B Bulanek, J Zacek, J Cvach, P Gallus, M Havranek, M Janata, J Kvasnicka, D Lednicky, M Marcisovsky, I Polak, J Popule, L Tomasek, M Tomasek, P Ruzicka, P Sicho, J Smolik, V Vrba, J Zalesak, B Belhorma, H Ghazlane, T Takeshita, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), CALICE, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Physics - Instrumentation and Detectors, International Linear Collider, Physics::Instrumentation and Detectors, FOS: Physical sciences, Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Tracking (particle physics), 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Silicon photomultiplier, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Fermilab, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), Detectors and Experimental Techniques, 010306 general physics, Nuclear Experiment, Instrumentation, Mathematical Physics, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), Calorimeter, Physics::Accelerator Physics, High Energy Physics::Experiment
Abstract

A prototype module for an International Linear Collider (ILC) detector was built, installed, and tested between 2006 and 2009 at CERN and Fermilab as part of the CALICE test beam program, in order to study the possibilities of extending energy sampling behind a hadronic calorimeter and to study the possibilities of providing muon tracking. The "tail catcher/muon tracker" (TCMT) is composed of 320 extruded scintillator strips (dimensions 1000 mm x 50 mm x 5 mm) packaged in 16 one-meter square planes interleaved between steel plates. The scintillator strips were read out with wavelength shifting fibers and silicon photomultipliers. The planes were arranged with alternating horizontal and vertical strip orientations. Data were collected for muons and pions in the energy range 6 GeV to 80 GeV. Utilizing data taken in 2006, this paper describes the design and construction of the TCMT, performance characteristics, and a beam-based evaluation of the ability of the TCMT to improve hadronic energy resolution in a prototype ILC detector. For a typical configuration of an ILC detector with a coil situated outside a calorimeter system with a thickness of 5.5 nuclear interaction lengths, a TCMT would improve relative energy resolution by 6-16 % for pions between 20 and 80 GeV., 23 pages, 18 figures, 4 tables, submitted to JINST

Published
2012
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6. Electromagnetic response of a highly granular hadronic calorimeter

Author

The CALICE collaboration, C Adloff, J Blaha, J -J Blaising, C Drancourt, A Espargilière, R Gaglione, N Geffroy, Y Karyotakis, J Prast, G Vouters, K Francis, J Repond, J Smith, L Xia, E Baldolemar, J Li, S T Park, M Sosebee, A P White, J Yu, Y Mikami, N K Watson, T Goto, G Mavromanolakis, M A Thomson, D R Ward, W Yan, D Benchekroun, A Hoummada, Y Khoulaki, M Benyamna, C Cârloganu, F Fehr, P Gay, S Manen, L Royer, G C Blazey, A Dyshkant, J G R Lima, V Zutshi, J -Y Hostachy, L Morin, U Cornett, D David, R Fabbri, G Falley, K Gadow, E Garutti, P Göttlicher, C Günter, S Karstensen, F Krivan, A -I Lucaci-Timoce, S Lu, B Lutz, I Marchesini, N Meyer, S Morozov, V Morgunov, M Reinecke, F Sefkow, P Smirnov, M Terwort, A Vargas-Trevino, N Wattimena, O Wendt, N Feege, J Haller, S Richter, J Samson, P Eckert, A Kaplan, H -Ch Schultz-Coulon, W Shen, R Stamen, A Tadday, B Bilki, E Norbeck, Y Onel, G W Wilson, K Kawagoe, S Uozumi, J A Ballin, P D Dauncey, A -M Magnan, H S Yilmaz, O Zorba, V Bartsch, M Postranecky, M Warren, M Wing, F Salvatore, E Calvo Alamillo, M -C Fouz, J Puerta-Pelayo, V Balagura, B Bobchenko, M Chadeeva, M Danilov, A Epifantsev, O Markin, R Mizuk, E Novikov, V Rusinov, E Tarkovsky, V Kozlov, Y Soloviev, P Buzhan, B Dolgoshein, A Ilyin, V Kantserov, V Kaplin, A Karakash, E Popova, S Smirnov, A Frey, C Kiesling, K Seidel, F Simon, C Soldner, L Weuste, J Bonis, B Bouquet, S Callier, P Cornebise, Ph Doublet, F Dulucq, M Faucci Giannelli, J Fleury, G Guilhem, H Li, G Martin-Chassard, F Richard, Ch de la Taille, R Pöschl, L Raux, N Seguin-Moreau, F Wicek, M Anduze, V Boudry, J-C Brient, D Jeans, P Mora de Freitas, G Musat, M Reinhard, M Ruan, H Videau, B Bulanek, J Zacek, J Cvach, P Gallus, M Havranek, M Janata, J Kvasnicka, D Lednicky, M Marcisovsky, I Polak, J Popule, L Tomasek, M Tomasek, P Ruzicka, P Sicho, J Smolik, V Vrba, J Zalesak, B Belhorma, H Ghazlane, K Kotera, M Nishiyama, T Takeshita, S Tozuka, T Buanes, G Eigen, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CALICE, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Physics - Instrumentation and Detectors, International Linear Collider, Physics::Instrumentation and Detectors, FOS: Physical sciences, Scintillator, 01 natural sciences, 7. Clean energy, Optics, Silicon photomultiplier, 0103 physical sciences, Calibration, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Instrumentation, Mathematical Physics, Large Hadron Collider, 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Calorimeter, High Energy Physics::Experiment, business, Beam (structure)
Abstract

The CALICE collaboration is studying the design of high performance electromagnetic and hadronic calorimeters for future International Linear Collider detectors. For the hadronic calorimeter, one option is a highly granular sampling calorimeter with steel as absorber and scintillator layers as active material. High granularity is obtained by segmenting the scintillator into small tiles individually read out via silicon photo-multipliers (SiPM). A prototype has been built, consisting of thirty-eight sensitive layers, segmented into about eight thousand channels. In 2007 the prototype was exposed to positrons and hadrons using the CERN SPS beam, covering a wide range of beam energies and incidence angles. The challenge of cell equalization and calibration of such a large number of channels is best validated using electromagnetic processes. The response of the prototype steel-scintillator calorimeter, including linearity and uniformity, to electrons is investigated and described.

Published
2011
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7. Study of the interactions of pions in the CALICE silicon-tungsten calorimeter prototype

Author

The CALICE collaboration, C Adloff, Y Karyotakis, J Repond, J Yu, G Eigen, Y Mikami, N K Watson, J A Wilson, T Goto, G Mavromanolakis, M A Thomson, D R Ward, W Yan, D Benchekroun, A Hoummada, Y Khoulaki, J Apostolakis, A Ribon, V Uzhinskiy, M Benyamna, C Cârloganu, F Fehr, P Gay, G C Blazey, D Chakraborty, A Dyshkant, K Francis, D Hedin, J G Lima, V Zutshi, J -Y Hostachy, K Krastev, L Morin, N D'Ascenzo, U Cornett, D David, R Fabbri, G Falley, K Gadow, E Garutti, P Göttlicher, T Jung, S Karstensen, A -I Lucaci-Timoce, B Lutz, N Meyer, V Morgunov, M Reinecke, F Sefkow, P Smirnov, A Vargas-Trevino, N Wattimena, O Wendt, N Feege, M Groll, J Haller, R -D Heuer, S Morozov, S Richter, J Samson, A Kaplan, H -Ch Schultz-Coulon, W Shen, A Tadday, B Bilki, E Norbeck, Y Onel, E J Kim, G Kim, D-W Kim, K Lee, S C Lee, K Kawagoe, Y Tamura, P D Dauncey, A -M Magnan, H Yilmaz, O Zorba, V Bartsch, M Postranecky, M Warren, M Wing, M G Green, F Salvatore, M Bedjidian, R Kieffer, I Laktineh, M -C Fouz, D S Bailey, R J Barlow, M Kelly, R J Thompson, M Danilov, E Tarkovsky, N Baranova, D Karmanov, M Korolev, M Merkin, A Voronin, A Frey, S Lu, K Seidel, F Simon, C Soldner, L Weuste, J Bonis, B Bouquet, S Callier, P Cornebise, Ph Doublet, M Faucci Giannelli, J Fleury, H Li, G Martin-Chassard, F Richard, Ch de la Taille, R Poeschl, L Raux, N Seguin-Moreau, F Wicek, M Anduze, V Boudry, J-C Brient, G Gaycken, D Jeans, P Mora de Freitas, G Musat, M Reinhard, A Rougé, M Ruan, J-Ch Vanel, H Videau, K-H Park, J Zacek, J Cvach, P Gallus, M Havranek, M Janata, M Marcisovsky, I Polak, J Popule, L Tomasek, M Tomasek, P Ruzicka, P Sicho, J Smolik, V Vrba, J Zalesak, B Belhorma, M Belmir, S W Nam, I H Park, J Yang, J -S Chai, J -T Kim, G -B Kim, J Kang, Y -J Kwon, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-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), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CALICE, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), 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)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Monte Carlo method, Hadron, FOS: Physical sciences, Electron, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pion, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], CALICE, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ddc:610, Detectors and Experimental Techniques, 010306 general physics, Nuclear Experiment, Instrumentation, Mathematical Physics, Physics, Large Hadron Collider, Calorimeter (particle physics), 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), Physics::Accelerator Physics, High Energy Physics::Experiment
Abstract

A prototype silicon-tungsten electromagnetic calorimeter for an ILC detector was tested in 2007 at the CERN SPS test beam. Data were collected with electron and hadron beams in the energy range 8 to 80 GeV. The analysis described here focuses on the interactions of pions in the calorimeter. One of the main objectives of the CALICE program is to validate the Monte Carlo tools available for the design of a full-sized detector. The interactions of pions in the Si-W calorimeter are therefore confronted with the predictions of various physical models implemented in the GEANT4 simulation framework. A prototype silicon-tungsten electromagnetic calorimeter for an ILC detector was tested in 2007 at the CERN SPS test beam. Data were collected with electron and hadron beams in the energy range 8 to 80 GeV. The analysis described here focuses on the interactions of pions in the calorimeter. One of the main objectives of the CALICE program is to validate the Monte Carlo tools available for the design of a full-sized detector. The interactions of pions in the Si-W calorimeter are therefore confronted with the predictions of various physical models implemented in the GEANT4 simulation framework.

Published
2010
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8. Construction and Commissioning of the CALICE Analog Hadron Calorimeter Prototype

Author

The CALICE collaboration, C Adloff, Y Karyotakis, J Repond, A Brandt, H Brown, K De, C Medina, J Smith, J Li, M Sosebee, A White, J Yu, T Buanes, G Eigen, Y Mikami, O Miller, N K Watson, J A Wilson, T Goto, G Mavromanolakis, M A Thomson, D R Ward, W Yan, D Benchekroun, A Hoummada, Y Khoulaki, M Oreglia, M Benyamna, C Cârloganu, P Gay, J Ha, G C Blazey, D Chakraborty, A Dyshkant, K Francis, D Hedin, G Lima, V Zutshi, V A Babkin, S N Bazylev, Yu I Fedotov, V M Slepnev, I A Tiapkin, S V Volgin, J -Y Hostachy, L Morin, N D'Ascenzo, U Cornett, D David, R Fabbri, G Falley, N Feege, K Gadow, E Garutti, P Göttlicher, T Jung, S Karstensen, V Korbel, A -I Lucaci-Timoce, B Lutz, N Meyer, V Morgunov, M Reinecke, S Schätzel, S Schmidt, F Sefkow, P Smirnov, A Vargas-Trevino, N Wattimena, O Wendt, M Groll, R -D Heuer, S Richter, J Samson, A Kaplan, H -Ch Schultz-Coulon, W Shen, A Tadday, B Bilki, E Norbeck, Y Onel, E J Kim, G Kim, D-W Kim, K Lee, S C Lee, K Kawagoe, Y Tamura, J A Ballin, P D Dauncey, A -M Magnan, H Yilmaz, O Zorba, V Bartsch, M Postranecky, M Warren, M Wing, M Faucci Giannelli, M G Green, F Salvatore, R Kieffer, I Laktineh, M C Fouz, D S Bailey, R J Barlow, R J Thompson, M Batouritski, O Dvornikov, Yu Shulhevich, N Shumeiko, A Solin, P Starovoitov, V Tchekhovski, A Terletski, B Bobchenko, M Chadeeva, M Danilov, O Markin, R Mizuk, E Novikov, V Rusinov, E Tarkovsky, V Andreev, N Kirikova, A Komar, V Kozlov, Y Soloviev, A Terkulov, P Buzhan, B Dolgoshein, A Ilyin, V Kantserov, V Kaplin, A Karakash, E Popova, S Smirnov, N Baranova, E Boos, L Gladilin, D Karmanov, M Korolev, M Merkin, A Savin, A Voronin, A Topkar, A Frey, C Kiesling, S Lu, K Prothmann, K Seidel, F Simon, C Soldner, L Weuste, B Bouquet, S Callier, P Cornebise, F Dulucq, J Fleury, H Li, G Martin-Chassard, F Richard, Ch de la Taille, R Poeschl, L Raux, M Ruan, N Seguin-Moreau, F Wicek, M Anduze, V Boudry, J-C Brient, G Gaycken, R Cornat, D Jeans, P Mora de Freitas, G Musat, M Reinhard, A Rougé, J-Ch Vanel, H Videau, K-H Park, J Zacek, J Cvach, P Gallus, M Havranek, M Janata, J Kvasnicka, M Marcisovsky, I Polak, J Popule, L Tomasek, M Tomasek, P Ruzicka, P Sicho, J Smolik, V Vrba, J Zalesak, Yu Arestov, V Ammosov, B Chuiko, V Gapienko, Y Gilitski, V Koreshev, A Semak, Yu Sviridov, V Zaets, B Belhorma, M Belmir, A Baird, R N Halsall, S W Nam, I H Park, J Yang, J -S Chai, J -T Kim, G -B Kim, Y Kim, J Kang, Y -J Kwon, I Kim, T Lee, J Park, J Sung, S Itoh, K Kotera, M Nishiyama, T Takeshita, S Weber, C Zeitnitz, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-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), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CALICE, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-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)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Hadron, FOS: Physical sciences, Scintillator, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Silicon photomultiplier, Optics, 0103 physical sciences, Calibration, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], CALICE, ddc:610, Fermilab, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Instrumentation, Mathematical Physics, Physics, Large Hadron Collider, 010308 nuclear & particles physics, business.industry, DESY, Instrumentation and Detectors (physics.ins-det), Physics::Accelerator Physics, High Energy Physics::Experiment, business
Abstract

An analog hadron calorimeter (AHCAL) prototype of 5.3 nuclear interaction lengths thickness has been constructed by members of the CALICE Collaboration. The AHCAL prototype consists of a 38-layer sandwich structure of steel plates and highly-segmented scintillator tiles that are read out by wavelength-shifting fibers coupled to SiPMs. The signal is amplified and shaped with a custom-designed ASIC. A calibration/monitoring system based on LED light was developed to monitor the SiPM gain and to measure the full SiPM response curve in order to correct for non-linearity. Ultimately, the physics goals are the study of hadron shower shapes and testing the concept of particle flow. The technical goal consists of measuring the performance and reliability of 7608 SiPMs. The AHCAL was commissioned in test beams at DESY and CERN. The entire prototype was completed in 2007 and recorded hadron showers, electron showers and muons at different energies and incident angles in test beams at CERN and Fermilab., Comment: 36 pages, 32 figures

Published
2010
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9. Response of the CALICE Si-W electromagnetic calorimeter physics prototype to electrons

Author

Ch. de la Taille, N. T. Meyer, T. Jung, I. H. Park, Y. Karyotakis, K. Francis, J. Zalesak, C. Cârloganu, H. Videau, O. Miller, F. Salvatore, Djamel Eddine Boumediene, C. M. Hawkes, M. Faucci Giannelli, Shih-Chang Lee, M. Belmir, E. Norbeck, Y. J. Kwon, Dev P. Chakraborty, J. Popule, O. Wendt, M. Krim, M. Postranecky, A. A. Voronin, G. C. Blazey, J. Zacek, S. Richter, Kyong Sei Lee, P. Mora e Freitas, V. Morgunov, Riccardo Fabbri, M. Bedjidian, N. Brun, R. Poeschl, Ki-Hyeon Park, Erika Garutti, Francois Richard, S. Lu, D. David, D-W. Kim, H. Yilmaz, G. Falley, G. Lima, F. Wicek, Petr Gallus, J. Cvach, Michal Marcisovsky, B. Lutz, C. Adloff, M. Tomášek, Geun-Bum Kim, B. Belhorma, A. Frey, D. S. Bailey, Jose Repond, A. Tadday, L. Raux, R. J. Barlow, Driss Benchekroun, Johannes Haller, A. I. Lucaci-Timoce, Abdeslam Hoummada, F. Morisseau, P. Ruzicka, P. A. Smirnov, Vaclav Vrba, Petr Sicho, V. Korbel, I. Polak, A. Kaplan, A. Vargas-Trevino, M. Janata, Imad Baptiste Laktineh, N. I. Baek, K. Prothmann, Goetz Gaycken, J. Smolik, P. D. Dauncey, J.Ch. Vanel, E. Tarkovsky, A.S. Dyshkant, N. Seguin-Moreau, Jong-Sung Yu, W. Yan, J. Fleury, J-Y. Hostachy, G. Mavromanolakis, Yasar Onel, M. Merkin, Burak Bilki, M. Reinecke, J. C. Brient, M. Anduze, D. A. Bowerman, R. D. Heuer, Kiyotomo Kawagoe, J. H. Kang, Nicola D'Ascenzo, P. Göttlicher, M. Reinhard, F. Sefkow, Y. Tamura, Miroslav Havranek, D. Karmanov, U. Cornett, M. Groll, B. Bouquet, N. Baranova, Frank Simon, Hui Li, M. A. Thomson, E.J. Kim, G. Musat, M. Korolev, J T Kim, J. A. Wilson, G. Eigen, J. Samson, M R M Warren, N. K. Watson, V. Zutshi, Vincent Boudry, R. Kieffer, Jong-Seo Chai, Y. Mikami, S. W. Nam, R. J. Thompson, Anne-Marie Magnan, D. R. Ward, M. G. Green, K. Gadow, O. Zorba, M. Wing, S. Karstensen, L. Morin, N. Wattimena, V. Bartsch, M. Benyamna, S. Callier, T. Goto, P. Cornebise, D. Hedin, Michael Kelly, Wei Shen, H. Ch Schultz-Coulon, L. Tomášek, A. Rougé, N. Feege, M. Danilov, J. Yang, Manqi Ruan, 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), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CALICE, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Accelerator Physics (physics.acc-ph), Nuclear and High Energy Physics, Particle physics, Physics - Instrumentation and Detectors, Silicon detector, International Linear Collider, Physics::Instrumentation and Detectors, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], FOS: Physical sciences, Electron, 01 natural sciences, 7. Clean energy, Nuclear physics, Electromagnetic calorimeter, 0103 physical sciences, CALICE, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Nuclear Experiment, physics.ins-det, Instrumentation, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Detector, Linearity, Instrumentation and Detectors (physics.ins-det), 3. Good health, Semiconductor detector, ILC, Electron reconstruction, 13. Climate action, Cathode ray, Physics::Accelerator Physics, Physics - Accelerator Physics, High Energy Physics::Experiment
Abstract

A prototype Silicon-Tungsten electromagnetic calorimeter (ECAL) for an International Linear Collider (ILC) detector was installed and tested during summer and autumn 2006 at CERN. The detector had 6480 silicon pads of dimension 1x1 cm^2. Data were collected with electron beams in the energy range 6 to 45 GeV. The analysis described in this paper focuses on electromagnetic shower reconstruction and characterises the ECAL response to electrons in terms of energy resolution and linearity. The detector is linear to within approximately the 1% level and has a relative energy resolution of (16.6 +- 0.1)/ \sqrt{E(GeV}) + 1.1 +- 0.1 (%). The spatial uniformity and the time stability of the ECAL are also addressed., 21 pages, 17 figs

Published
2009
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10. Measurement of the inclusive production of neutral pions and charged particles on the Z0 resonance

Author

Yu. Galaktionov, D. Pandoulas, T. McMahon, J. Alcaraz, T. Spickermann, Bernard Ille, X. Lue, U. K. Chaturvedi, Y. S. Lu, A. A. Syed, Igor Vorobiev, M. Hebert, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, G. Landi, Egidio Longo, J.C. Sens, Panos A Razis, M. S. Sarakinos, R. Mount, A. Bay, Jozsef Toth, J. Lettry, Claudio Luci, Cheng Chen, R. Magahiz, J. D. Swain, X.L. Wang, P. McBride, Jérôme Rose, B.C. Stringfellow, M. Yzerman, F. Crijns, M. M. Ilyas, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Y. Karyotakis, E. Gonzales, P. Blömeke, M.L. Chen, Manjit Kaur, H. R. Gustafson, Bolek Wyslouch, Qian Wang, Carlo Civinini, C. F. He, M. Maolinbay, A. Pevsner, H. Akbari, Adrian Biland, Daqiang Zhang, Barry Blumenfeld, Elisabetta Gallo, A. Böhm, C. Zaccardelli, J. H. Field, G. Trowitzsch, C. Y. Chien, Jun Guo, B. Lindemann, G. Herten, Jean Fay, M. Dhina, D. Boutigny, J.H. Wang, A. Gordeev, P. K. Malhotra, H. A. Rizvi, A. Kunin, W. J. Metzger, K. N. Qureshi, F. Carbonara, F. L. Linde, G. Finocchiaro, S. Schulte, M. Aguilar-Benitez, M. Fukushima, Marcella Diemoz, Dimitri Bourilkov, R.W. Krammer, K. Schmiemann, Herwig Schopper, M. Bocciolini, An.A. Vorobyov, T. Matsuda, C. Manña, V. Shevchenko, S. Beingessner, W. Friebel, G. Faber, S. Reucroft, M. White, J. Berdugo, K.D. Shmakov, S. J. Fan, J. Behrens, P. J. Li, J. Perrier, M. N. Kienzle-Focacci, Y. J. Pei, O. Adriani, J. Mnich, R. Weill, L. Antonov, G. Von Dardel, A. Degré, S. Shotkin, R. Sehgal, Z.Q. Yang, M. Lenti, A. C. Weber, N. E. Moulai, P. Lebrun, A. Rubbia, J. M. Le Goff, T. Foreman, M. J. Glaubman, S. Lanzano, Lucas Taylor, M. Möller, B. Martin, A. L. Anderson, D. P. Stickland, Raffaello D'Alessandro, X.G. Lli, G. S. Sanders, C. Grinnell, D. Wright, Ying Wu, J. F. Zhou, F. Diez-Hedo, Peter Denes, D. Z. Shen, P. Cardenal, J. A. Bakken, B. Borgia, W. Kittel, H. El Mamouni, Leonardo Merola, E. Valente, F. Plasil, J. Bao, M. MacDermott, P. G. Seiler, J. A. Rubio, M. A. Niaz, G. Mirabelli, Y. Mir, C. H. Ye, Paolo Bagnaia, F. Cesaroni, J. Ulbricht, Yu. Kamyshkov, M. Sachwitz, G. Sauvage, Mingshui Chen, Marco Meschini, F. Bruyant, E. Nagy, A. Engler, W. Ruckstuhl, D. McNally, E. Dénes, M. Merk, U. Uwer, J. Y. Liao, D. Kirkby, A. Chen, T. Azemoon, C. J.W.P. Timmermans, P. Extermann, P. Vikas, M. Capell, Yuehong Xie, I. Leedom, M. Vivargent, B. Spiess, Christine Buisson, K. Lübelsmeyer, Piero Spillantini, A. Bujak, H. Hofer, P. Arce, Mw Gruenewald, J. Salicio, H.R. Dimitrov, K. L. Tung, M. Schneegans, J. Krizmanic, G. Chiefari, D. Goujon, A. Marchionni, S. Shevchenko, X. Leytens, G. Viertel, E. Isiksal, R. Rosmalen, Emilio Leonardi, Z. M. Wang, J. Schütte, S. Rosier-Lees, C. G. Yang, Harvey B Newman, K. Hilgers, X.R. Shi, Marcos Cerrada, M. Rubio, J. D. Burger, Vincenzo Innocente, Christopher George Tully, R. Malik, P. Le Coultre, S. Morganti, H. S. Fesefeldt, R. Bock, V.R. Krastev, G. Rahal-Callot, Ren-Yuan Zhu, Luciano Barone, Petr Levchenko, S. Röhner, D. Ren, Lamberto Luminari, Qiang Li, I. Clare, J. Busenitz, J. Schwenke, W.G. Ma, X. Y. Cui, P. Göttlicher, F. Wittgenstein, K. S. Kumar, D.W. Schmitz, G.G.G. Massaro, J. M. Lubbers, K. Sudhakar, L. Baksay, A. A. Savin, Wolfgang Lohmann, A. Sopczak, J. Fehlmann, L. Ludovici, U. Vikas, Robert Clare, A. Contin, L. Martinez-Laso, E. Drago, V. Plyaskin, H. Vogt, B. Bertucci, Thomas Hebbeker, Paul Lecoq, K. Schultze, L. Niessen, E. Tarkovsky, Zhuoxiang Ren, Sau Lan Wu, R. C. Ball, M. Wadhwa, M. Guanziroli, Pierre Lecomte, G. Sartorelli, M. Napolitano, P. Marchesini, U. Herten, J. B. Ye, L. Z. Sun, Q.Y. Yang, Ming Zeng, Z.Y. Lin, D. J. Schotanus, J. M. You, R. Leiste, D.N. Mao, H. Anderhub, C. R. Wang, Nicanor Colino, D. Lanske, M. Röhner, Sc Yeh, G. Fernandez, B. Z. Yang, L. Romero, J. P. Martin, E. Soderstrom, H. S. Chen, N. Produit, Helmut Vogel, M. T. Dova, H. O. Cohn, R. Starosta, Bernardo Adeva, G. A. Yang, D. Luckey, Gy L. Bencze, A. Gurtu, O. Fackler, L. Urbán, Y. Mi, V. Commichau, H. J. Schreiber, E. Shumilov, T. Kramer, G. B. Mills, J. J. Blaising, B. Monteleoni, F. Sticozzi, Kajari Mazumdar, S. Khokhar, X. J. Yan, S. Müller, Y.F. Mao, M. Bourquin, V. Shoutko, Reinhard W. Schulte, C. Spartiotis, L. Li, D. Duchesneau, K. Strauch, F. C. Erné, P. Zemp, H. Haan, R. de Asmundis, S. C. Tonwar, Alexander Malinin, M. Tonutti, U. Roeser, Xd Cai, R. Morand, M. Gailloud, W. Kinnison, I. Scott, Frank Filthaut, M. Fabre, Z. L. Xue, Mariagrazia Alviggi, Thomas Ferguson, A. Hasan, Howard A. Stone, Georgi Sultanov, J.F. Li, H.F. Chen, F. Tonisch, Q. Fan, I. Vetlitsky, T. S. Dai, R. A. Khan, H. Suter, T. Driever, Valentin V. Khoze, Y. D. Xu, V. P. Andreev, G.J. Bobbink, M. Chemarin, C-Q. Li, G. M. Chen, R. Bizzarri, F. DeNotaristefani, L. Leistam, R.J. Wu, P. Berges, M. Maire, O. Rind, Hafeez R. Hoorani, Z.F. Gong, V. Lalieu, Y. H. Chang, George Alverson, R. T. Van de Walle, V. Koutsenko, Vineet Kumar, J.P. Burq, P. Schmitz, Alexei Klimentov, K. Deiters, K. Freudenreich, Roberto Divia, B. P. Roe, R. Liu, I. C. Brock, T. J. Wenaus, P.V.K.S. Baba, H. L. Zhuang, Oliver Kornadt, M. Pohl, A. Kasser, Guofan Hu, J. Schwering, Z.Z. Xu, F. Ferroni, Y. Zeng, T. Angelov, J. G. Branson, Jianming Qian, G. Hu, Carlos Willmott, Speranza Falciano, Y. F. Wang, H. T. Li, Z. W. Yin, D. Antreasyan, S. N. Ganguli, Giovanni Paternoster, Qi An, H. Janssen, K.S. Yang, P. Duinker, Simonetta Gentile, Kenneth Francis Read, G. Conforto, D. Hauschildt, C. Neyer, D. M. Lee, B. N. Jin, H. Nowak, Wolfgang Stoeffl, Samuel C.C. Ting, L. Zehnder, W. Wallraff, Steven Goldfarb, S. Banerjee, G. Passaleva, Zp Zhang, Tariq Aziz, W. Y. Chen, D. Gele, Crisostomo Sciacca, François Chollet, Marco Pieri, C. Rippich, G. Gratta, Alberto Aloisio, A. Ricker, S.S. Gau, Th. Meinholz, L. J. Gutay, U. Becker, X. W. Tang, I. Sheer, I. Duran, P. A. Piroué, B. Bouwens, F. J. Eppling, L. W. Jones, S. X. Wu, D. S. Yan, S. M. Ting, R.B. Sutton, D. Linnhofer, Federico Carminati, D. DiBitonto, Ph. Rosselet, S. Patricelli, Q. Ye, M. Steuer, G. Forconi, J. Weber, D. Perret-Gallix, A. Arefiev, Aa Vorobyov, F. Marzano, G. Coignet, W. Krenz, R. Fabbretti, Yanwen Liu, Sabine Riemann, A. M. Cartacci, R. Raghavan, A. C. König, Y.P. Tong, Laurent Vuilleumier, R. L. Sumner, G. H. Wang, J. Wenninger, V. Pojidaev, Nikita Smirnov, Zm Wang, B. L. Betev, G. Morand, L.S. Hsu, 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
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, 7. Clean energy, 01 natural sciences, Charged particle, Nuclear physics, Pion, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Center of mass, Nuclear Experiment, 010306 general physics, Parton shower, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment
Abstract

We present a study of the inclusive production of neutral pions and charged particles from 112 000 hadronic Z 0 decays. The measured inclusive momentum distributions can be reproduced by parton shower Monte Carlo programs and also by an analytical QCD calculation. Comparing our results to e + e − data between √ s = 9 and 91 GeV, we findfind that the evolution of the spectra with center of mass energy is consistent with the QCD predictions.

Published
1991
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11. Decay properties of tau leptons measured at the Z0 resonance

Author

Adrian Biland, Roberto Battiston, H. Anderhub, K.D. Shmakov, S. J. Fan, B. Borgia, L.S. Hsu, Gerard Fernandez, J. Ulbricht, J.H. Wang, Jozsef Toth, J. Lettry, Claudio Luci, A. Engler, W. Ruckstuhl, P. Zemp, F. Plasil, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, A. Kunin, Zheng Wang, Mingshui Chen, I. Clare, J. Busenitz, R. de Asmundis, H. S. Fesefeldt, P. Göttlicher, Elisabetta Gallo, M. Pauluzzi, B. P. Roe, Petr Levchenko, S. Röhner, L. J. Gutay, W. Kittel, W. J. Metzger, F. Wittgenstein, U. Becker, L. Ludovici, M. Chmeissani, J. B. Ye, E. Drago, L. Niessen, H. R. Gustafson, Sau Lan Wu, Chenliang Wang, T. Driever, D. Ren, R. Sehgal, O. Fackler, L. Z. Sun, L. Urbán, I. Duran, X. L. Wang, Yuehong Xie, M. Vivargent, Christine Buisson, Z. M. Wang, An.A. Vorobyov, L. Antonov, R. Leiste, C. Neyer, F. Carbonara, B. L. Betev, K. N. Qureshi, E. Nagy, C. Dionisi, T. Matsuda, Pablo Garcia-Abia, T. Kramer, Alain Hervé, F. L. Linde, S. Reucroft, S. Schulte, A. Bay, F. J. Eppling, L. W. Jones, A. Contin, Carlo Civinini, B. Monteleoni, M. Sachwitz, M. Maolinbay, F. Sticozzi, G. Raven, M. Capell, X.G. Li, B. N. Jin, M. Aguilar-Benitez, Giovanni Ambrosi, S. Shotkin, H. Nowak, D. S. Yan, K. Schmiemann, Herwig Schopper, S. M. Ting, J. J. Blaising, M. White, X. R. Shi, Felicitas Pauss, V. Plyaskin, M. J. Glaubman, G. Morand, Y. J. Pei, C. Spartiotis, A. C. Weber, O. Adriani, Lucas Taylor, J. Krizmanic, A. Marchionni, M. Schneegans, D. M. Lee, Qian Wang, Wolfgang Stoeffl, G. Schwering, R. Malik, Qiang Li, S. Rosier-Lees, V.R. Krastev, D. P. Stickland, H. Haan, H. El Mamouni, A. Bujak, Oliver Kornadt, M. Pohl, P. Le Coultre, R. Morand, Z. L. Xue, M. T. Dova, Howard A. Stone, Mariagrazia Alviggi, Yu. Kamyshkov, E. Gonzalez, A. A. Savin, D. Linnhofer, R. Fabbretti, Y. Mir, M. Guanziroli, E. Valente, C. H. Ye, F. Tonisch, Q. Fan, J. M. Lubbers, W. Wallraff, P. Schmitz, Alexei Klimentov, H. O. Cohn, P. Arce, D. Goujon, Federico Carminati, C. F. He, J. M. Salicio, Zhen Zhang, Mw Gruenewald, G. B. Mills, C. G. Yang, P. Vikas, S. Lanzano, Bernardo Adeva, G. Mirabelli, G. M. Bilei, J. P. Martin, T. Angelov, D. McNally, I. Vetlitsky, D.N. Mao, A. Kasser, Guofan Hu, S. Banerjee, H.R. Dimitrov, U. Herten, B. Wysouch, R. Starosta, D. Luckey, Vincenzo Innocente, R. Barillère, A. Pevsner, R. Mount, K. S. Kumar, E. Shumilov, Gy L. Bencze, Reinhard W. Schulte, Zhuoxiang Ren, M. Gailloud, M. Wadhwa, D. J. Schotanus, J. D. Burger, A. Sopczak, V. Shoutko, Yanwen Liu, F. C. Erné, M. Fukushima, Barry Blumenfeld, G. Herten, S. Beingessner, S. Patricelli, Valery Schegelsky, Antonino Zichichi, Sabine Riemann, X. Leytens, C-Q. Li, Q. Ye, G. Paternoster, D.W. Schmitz, G. Rahal-Callot, G.G.G. Massaro, K. Lanius, J. M. You, K. Lübelsmeyer, Piero Spillantini, Wen-Gan Ma, W. Friebel, N. Produit, J. G. Branson, K. Freudenreich, R.J. Wu, G. Viertel, Ph Fisher, J. Mnich, M. Tonutti, H. Rykaczewski, V. Shevchenko, K. Sudhakar, Y. Karyotakis, R. Bizzarri, Alberto Aloisio, A. Ricker, F. DeNotaristefani, Robert Clare, Thomas Hebbeker, A. M. Cartacci, Paul Lecoq, R. W. Kraemer, G. A. Yang, K. Dénes, Igor Vorobiev, Jianming Qian, D. Z. Shen, A. Rubbia, T. Foreman, J. A. Bakken, M. Hebert, R. Raghavan, A. C. König, Y.P. Tong, Laurent Vuilleumier, G. Hu, L. Leistam, Th. Meinholz, Panos A Razis, M. Napolitano, Z. W. Yin, S. N. Ganguli, Z. F. Gong, E. Soderstrom, W. Y. Chen, A. A. Syed, K. Schultze, E. Tarkovsky, J. Bao, Attilio Santocchia, P. Blömeke, Jean Fay, M. Dhina, Dimitri Bourilkov, D. Boutigny, X. W. Tang, I. Sheer, P. A. Piroué, H. S. Chen, L. Servoli, G. Landi, R. L. Summer, Peter Denes, D. Lanske, Sc Yeh, Lamberto Luminari, J. M. Le Goff, D. H. Wright, A. Gordeev, Stéphane Jézéquel, G. H. Wang, Z. Y. Lin, B.C. Stringfellow, J. P. Burg, P. Berges, Tariq Aziz, O. Rind, Paolo Bagnaia, S. Morganti, M. Yzerman, F. Crijns, M. Bocciolini, L. Romero, J. Berdugo, Hafeez R. Hoorani, N. E. Moulai, E. Fiandrini, J. Wenninger, Z.Q. Yang, D. Duchesneau, V. Pojidaev, Nikita Smirnov, Manjit Kaur, M. Fabre, Y. Mi, H. Akbari, Daqiang Zhang, M. Caria, Georgi Sultanov, G. S. Sanders, J.F. Li, T. S. Dai, R. A. Khan, G. Gratta, Jun Guo, M. Bourquin, B. Lindemann, Crisostomo Sciacca, K. Strauch, Carlos Willmott, G. Finocchiaro, H. Suter, Marco Pieri, G. Sauvage, C. Rippich, V. Lalieu, S. C. Tonwar, P. G. Seiler, J. A. Rubio, V. P. Andreev, G.J. Bobbink, R. C. Ball, Pierre Lecomte, Valentin V. Khoze, G. Sartorelli, Frank Filthaut, Speranza Falciano, Harvey B Newman, M. Chemarin, V. Koutsenko, G. M. Chen, Thomas Ferguson, K. Hilgers, M. N. Kienzle-Focacci, R. Rosmalen, Marcel Merk, J. Schwenke, J. Perrier, Marco Meschini, X. Y. Cui, D. Kirkby, Charles Timmermans, Christopher George Tully, Wolfgang Lohmann, H. Vogt, B. Bertucci, H. T. Li, D. Antreasyan, Nicanor Colino, Qi An, D. Pandoulas, H. Janssen, K.S. Yang, Helmut Vogel, T. Spickermann, P. Duinker, M. Möller, Simonetta Gentile, Bernard Ille, Kenneth Francis Read, G. Conforto, D. Hauschildt, Kajari Mazumdar, S. Khokhar, T.R. McMahon, X. J. Yan, S. Müller, R. Liu, R. Magahiz, S. S. Gau, T. J. Wenaus, P.V.K.S. Baba, J. D. Swain, H. F. Chen, H. L. Zhuang, Xd Cai, F. Cesaroni, L. Martinez-Laso, J. Y. Liao, P. McBride, C. Maña, I. C. Brock, Emilio Leonardi, J. Schütte, Y. F. Wang, R. Bock, P. Marchesini, G. Chiefari, L. Baksay, F. Bruyant, Ming Zeng, S. Shevchenko, F. Behner, M. Röhner, F. Ferroni, Y. Zeng, Y. H. Chang, George Alverson, Vineet Kumar, Y.F. Mao, R. T. Van de Walle, I. Scott, M. MacDermott, M. A. Niaz, P. Extermann, I. Leedom, B. Z. Yang, H. Hofer, K. L. Tung, Egidio Longo, J.C. Sens, M. S. Sarakinos, M. M. Ilyas, M.L. Chen, Marcella Diemoz, R. Weill, M. Lenti, G. Von Dardel, A. L. Anderson, A. Degré, Ying Wu, J. F. Zhou, A. Arefiev, Raffaello D'Alessandro, C. Grinnell, Aa Vorobyov, Leonardo Merola, T. Azemoon, L. Li, Marcos Cerrada, Ren-Yuan Zhu, Luciano Barone, Yu. Galaktionov, J. Alcaraz, F. Marzano, G. Coignet, W. Krenz, Q.Y. Yang, A. Gurtu, V. Commichau, H. J. Schreiber, Cheng Chen, Samuel C.C. Ting, A. Böhm, C. Zaccardelli, W. W. Kinnison, Steven Goldfarb, G. Passaleva, D. Gele, A. Hasan, S. X. Wu, R.B. Sutton, D. DiBitonto, Ph. Rosselet, M. Steuer, G. Forconi, J. Weber, D. Perret-Gallix, Y. D. Xu, U. K. Chaturvedi, Y. S. Lu, A. Malinin, Jérôme Rose, J. H. Field, G. Trowitzsch, C. Y. Chien, J. Behrens, P. J. Li, P. Lebrun, BT Bouwens, U. Uwer, A. Chen, J. Salicio, 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
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, Charged particle, Nuclear physics, 0103 physical sciences, Decay length, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Impact parameter, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Lepton
Abstract

From 2540 Z0 → τ+τ− events, we determine the inclusive decay branching fractions of the τ-lepton into one and three charged particles to be 0.856 ± 0.006 (stat.) ± 0.003 (syst.) and 0.144 ± 0.006 (stat.) ± 0.003 (syst.), respectively. The leptonic branching fractions are measured to be 0.175 ± 0.008 (stat.) ± 0.005 (syst.) for τ → μνμντ and 0.177 ± 0.007 (stat.) ± 0.006 (syst.) for τ → eνeντ. We determined the τ lifetime both from three-prong decays using the decay length and from one-prong decays using the impact parameter. The results from the two independent methods agree and yield a combined value of [0.309 ± 0.023 (stat.) ± 0.030 (syst.)] × 10−12s.

Published
1991
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12. A search for heavy charged and neutral leptons from Z0 decays

Author

Dimitri Bourilkov, R.J. Wu, M. MacDermott, Raffaello D'Alessandro, M.L. Chen, P.J. Li, C. Grinnell, M. A. Niaz, Leonardo Merola, A. Gordeev, C.H. Ye, R. Starosta, V. Commichau, G.Q. Hu, D. Pandoulas, T. Azemoon, P. Extermann, B. Ille, Marcella Diemoz, C. Buisson, A. Böhm, I. Leedom, H. Hofer, K. L. Tung, M. Möller, B. P. Roe, G. Von Dardel, A. Degré, T. Böhringer, G. Morand, J. Behrens, H. Anderhub, C.R. Wang, Q.Y. Yang, Z.W. Yin, U. Uwer, Fridolin Dittus, Z.Y. Lin, O. Kornadt, M. Fukushima, J.C. Sens, R. Raghavan, Harvey B Newman, J. Lettry, Claudio Luci, Elisabetta Gallo, C.F. He, Egidio Longo, S. Shevchenko, A. C. König, Laurent Vuilleumier, E. Isiksal, J.P. Martin, A. Chen, F. Ferroni, S. Beingessner, D. DiBitonto, A. Bujak, R. L. Sumner, F. Tonisch, G. H. Wang, W. Lohmann, W. Wallraff, D. Perret-Gallix, M. Guanziroli, J. Wenninger, J.P. Burq, Ph. Rosselet, M. Steuer, Zm Wang, G. Forconi, B. Stöhr, C. Zaccardelli, M. Pohl, M. M. Ilyas, R. Leiste, X.G. Li, Yu. Kamyshkov, D. Boutigny, P. K. Malhotra, H. A. Rizvi, H.J. Schreiber, L. J. Gutay, U. Roeser, R. Fabbretti, R. de Asmundis, J. Weber, L.S. Hsu, J. Salicio, Tariq Aziz, Marco Meschini, J. Fay, K. Schultze, Yu. Galaktionov, H. van der Graaf, M. Zeng, D.N. Mao, S. Reucroft, U. Becker, M. Schöntag, Mw Gruenewald, H. Haan, Ren-Yuan Zhu, Luciano Barone, R. Liu, R.C. Ball, Adrian Biland, V. Lalieu, D.S. Yan, H. Fenker, R. T. Van de Walle, G.B. Mills, K.S. Kumar, R. Weill, M. Gailloud, A.M. Cartacci, D. Kirkby, E. Thomas, H.T. Li, T. Spickermann, G. Herten, L. Urbàn, G. Landi, M. J. Glaubman, F.C. Erné, C. G. Yang, I. Scott, L. Li, G. Faber, H.F. Chen, J. Alcaraz, A. Gurtu, Aa Vorobyov, Y.J. Pei, M. Chemarin, J.Y. Liao, R.A. Khan, F. J. Eppling, L. W. Jones, A. Kunin, E. Valente, E. Jagel, Y. Zeng, P. Vikas, V. Shevchenko, T. Foreman, H.R. Dimitrov, M. Lenti, P. Arce, M. Bocciolini, K. Freudenreich, P.V.K.S. Baba, G. Sartorelli, H. L. Zhuang, D. Goujon, D. McNally, S. M. Ting, J.M. You, Mingshui Chen, A. L. Anderson, D. Duchesneau, M. Maire, E. Nagy, A. Hasan, M. Cerrada, Z. Ren, C. Chen, Vincenzo Innocente, N. Smirnov, F. Marzano, I. Vetlitsky, D. Lanske, B. Bertucci, W. J. Metzger, G. Viertel, J.M. Qian, C. Li, I. Vorobiev, Z.M. Wang, K. N. Qureshi, Y. D. Xu, P. Blömeke, P. Lebrun, X. Leytens, V. Shoutko, Crisostomo Sciacca, D. Zhang, Marco Pieri, A. Engler, Jd Burger, K. Sudhakar, C. Rippich, S. Morganti, G. Rahal-Callot, G.G.G. Massaro, Nicanor Colino, H. El Mamouni, J. G. Branson, M. Capell, J. A. Bakken, Samuel C.C. Ting, G. Fernandez, X. Lue, K.S. Yang, L. Romero, Federico Carminati, P. McBride, U. Micke, K. Lübelsmeyer, Z.Z. Xu, X. Y. Cui, J. Tòth, S. Röhner, Y. Mi, H. R. Gustafson, Y. S. Lu, S. N. Ganguli, J. Schwenke, Steven Goldfarb, F. Carbonara, M. Tonutti, J. M. Salicio, R.B. Sutton, G. Passaleva, D.H. Zhang, S. Lökös, M.C. Chen, U.K. Chaturvedi, Konrad Deiters, G. Sauvage, A. Malinin, Th. Rombach, R. Wilhelm, J. H. Field, W. Krenz, G. Schwering, An.A. Vorobyov, T. Matsuda, Alberto Aloisio, S. C. Tonwar, L. Martinez, L. Niessen, S. Patricelli, F. L. Linde, W. Böhlen, Simonetta Gentile, K. Hilgers, M. Schneegans, Jj Blaising, O. Adriani, Thomas Ferguson, T. Kramer, Kenneth Francis Read, R. Morand, Q. Ye, V. Schegelsky, G. Conforto, L. Z. Sun, V. Pojidaev, Th. Meinholz, Lucas Taylor, K. Hangarter, S.J. Fan, Sc Yeh, A. Klimentov, S.S. Gau, J.F. Li, T. Angelov, C. Maña, H. Vogt, X. W. Tang, K. Lanius, I. Sheer, G. Yang, Jian Wang, P. A. Piroué, J. Rose, C. Willmott, Mariagrazia Alviggi, D. Linnhofer, W. Friebel, M. Bourquin, L. Baksay, Speranza Falciano, G. Coignet, B. N. Jin, K. Strauch, P. Duinker, P.G. Seiler, F. Diez-Hedo, Peter Denes, V. Morgunov, Bolek Wyslouch, Qian Wang, X.L. Wang, J. Bao, Paolo Bagnaia, G. Gratta, R. Mount, V. Koutsenko, P. Schmitz, B. Borgia, L. Zehnder, J.B. Ye, C.Y. Chien, S. Banerjee, Zp Zhang, A. van Laak, W. Ruckstuhl, D. P. Stickland, H. Suter, Y.F. Wang, Y. Mir, S. Rosier-Lees, R. Malik, A. Pevsner, Barry Blumenfeld, Antonino Zichichi, J.M. Lubbers, U. Herten, Ph Fisher, H. Rykaczewski, Q. Z. Li, Y. Karyotakis, X.R. Shi, L. Antonov, I. Clare, J. Busenitz, S. Schulte, V. Kumar, J. Krizmanic, A. Marchionni, Q. An, M. Dhina, M. Micke, V. Plyaskin, T. Hebbeker, D. J. Schotanus, P. Levchenko, V.R. Krastev, E. Gonzalez, M. Röhner, N. Produit, J. Ulbricht, C. Spartiotis, S. Lanzano, Bernardo Adeva, A. A. Syed, Howard A. Stone, T.S. Dai, Q. Fan, B.C. Stringfellow, B. Spiess, V. Khoze, F. Crijns, R. Rosmalen, G. Finocchiaro, Marcel Merk, B.Z. Yang, J. Perrier, R. Bizzarri, Ian Brock, F. DeNotaristefani, L. Leistam, M. Kaur, G. Hu, B. Monteleoni, G. Chiefari, W. Kittel, P. Berges, R. Sehgal, W.G. Ma, M. Vivargent, C. Dionisi, Alain Hervé, A. Bay, A. Arefiev, Carlo Civinini, M. Maolinbay, M. Aguilar-Benitez, I. Duran, Herwig Schopper, M. White, F. Wittgenstein, L. Ludovici, E. Drago, Sau Lan Wu, T. Driever, R. Schulte, A. Kuhn, M. Harris, J.F. Zhou, S. Hancke, Y. H. Chang, George Alverson, Z.Q. Yang, G. Trowitzsch, Helmut Vogel, Kajari Mazumdar, S. Khokhar, E. Dénes, Xd Cai, F. Cesaroni, D. Ren, H. Fesefeldt, U. Vikas, A. Contin, J. Mnich, M. Hebert, Panos A Razis, J. Schütte, M. Sachwitz, F. Bruyant, R. Dolin, P. Garcia-Abia, J. M. Le Goff, K. Shmakov, Z.F. Gong, M. Wadhwa, J. A. Rubio, T. McMahon, E. Shumilov, R. Magahiz, J. D. Swain, A. Savin, D. Wright, C. Camps, P. Le Coultre, D. Schmitz, D. Antreasyan, G. Paternoster, G. Mirabelli, P. Marchesini, Robert Clare, D. Luckey, Gy L. Bencze, Y.G. Wu, Paul Lecoq, R. W. Kraemer, M. Napolitano, Piero Spillantini, H. S. Chen, S.X. Wu, Y.P. Tong, E. Tarkovsky, A. Sopczak, T.J. Wenaus, H. Akbari, Y.F. Mao, Lamberto Luminari, J. Berdugo, P. Göttlicher, J. Fehlmann, Z.L. Xue, Pierre Lecomte, M. Vollmar, Charles Timmermans, O. Rind, Hafeez R. Hoorani, M. Fabre, Georgi Sultanov, V. P. Andreev, G.J. Bobbink, B.L. Betev, G. M. Chen, 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
Physics, Nuclear and High Energy Physics, Particle physics, Sterile neutrino, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, High Energy Physics::Phenomenology, Dirac (software), 01 natural sciences, Lower limit, Nuclear physics, MAJORANA, grey literature, Citation analysis, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutrino, Nuclear Experiment, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Lepton
Abstract

We have searched for charged and neutral leptons. We exclude stable Dirac neutrinos below 42.8 GeV and stable Majorana neutrinos below 34.8 GeV. From a search for unstable neutrinos we exclude masses below 46.4 GeV (Dirac) and below 45.1 GeV (Majorana). We exclude all masses of sequential charged and neutral leptons, except if both masses are larger than 42.8 GeV (for stable Dirac neutrinos). All mass limits correspond to 95% CL.

Published
1990
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13. Measurement of the Lifetime of B-hadrons and A Determination of [vcb]

Author

T. Spickermann, P. Marchesini, Bernard Ille, R. Magahiz, J. D. Swain, T. Angelov, V. Plyaskin, P. McBride, K. Lanius, H.R. Dimitrov, Jianming Qian, Ming Zeng, G. Hu, L. S. Hsu, M. Röhner, J. D. Burger, G. Rahal-Callot, M. T. Dova, Giovanni Ambrosi, A. M. Cartacci, K. Schultze, E. Tarkovsky, D. Lanske, Sc Yeh, G. Fernandez, L. Romero, R. Raghavan, Carlos Willmott, H. O. Cohn, Speranza Falciano, M. Caria, Y. F. Wang, A. C. König, G. Gratta, Bolek Wyslouch, Qian Wang, Y.F. Mao, M. Bourquin, Samuel C.C. Ting, Qiang Li, M. Sachwitz, A. C. Weber, G. Mirabelli, K. Strauch, R. T. Van de Walle, K. Lübelsmeyer, Piero Spillantini, Laurent Vuilleumier, K. S. Kumar, C. F. He, H. T. Li, D. Antreasyan, Egidio Longo, J.C. Sens, Lamberto Luminari, V. Lalieu, Qi An, H. Janssen, R. C. Ball, Pierre Lecomte, G. Sartorelli, M. Gruenewald, A. Pevsner, Charles Timmermans, L. J. Gutay, M. M. Ilyas, K.S. Yang, I. Scott, U. Becker, V. Koutsenko, P. Duinker, M. Bocciolini, Barry Blumenfeld, I. Duran, R. L. Sumner, G. H. Wang, U. Herten, L. Z. Sun, Steven Goldfarb, Simonetta Gentile, Roberto Battiston, R. Bizzarri, G. Passaleva, F. J. Eppling, L. W. Jones, D. S. Yan, R. Barillère, S. M. Ting, J.P. Burq, Valery Schegelsky, Antonino Zichichi, Petr Levchenko, S. Röhner, Y. J. Pei, Gianpaolo Carlino, F. DeNotaristefani, Yu. Galaktionov, Ph Fisher, E. Valente, Kenneth Francis Read, Adrian Biland, U. K. Chaturvedi, G. Conforto, Y. S. Lu, J. Wenninger, S. Schulte, K. Schmiemann, J. Alcaraz, H. Rykaczewski, Y. Karyotakis, F. Ferroni, W. Y. Chen, W. Stoeff, F. Wittgenstein, B. Borgia, Y. Zeng, D. McNally, D. Hauschildt, L. Ludovici, M. Chmeissani, S. S. Gau, E. Dénes, R. Weill, Tariq Aziz, V. Pojidaev, M. N. Kienzle-Focacci, R. Rosmalen, L. Leistam, D. P. Stickland, A. Kasser, Guofan Hu, D. Gele, A. Malinin, J. Ulbricht, K.D. Shmakov, S. J. Fan, Attilio Santocchia, Jean Fay, M. Dhina, G. Schwering, G. Herten, E. Drago, Nikita Smirnov, Y. Mi, L. Niessen, D.N. Mao, T. Driever, D. Boutigny, X. Leytens, G. Viertel, M. Lenti, Zm Wang, Jérôme Rose, Y. Mir, C. H. Ye, D. Lee, J. H. Field, C. Y. Chien, W. Friebel, A. L. Anderson, J. G. Branson, B. Z. Yang, Hans J. Vogel, S. Morganti, Cheng Chen, R. Liu, D. Linnhofer, M. Gailloud, Dimitri Bourilkov, J. Schwenke, P. Vikas, J.H. Wang, P. K. Malhotra, Federico Carminati, M. Pauluzzi, T. J. Wenaus, X. Y. Cui, P. Berges, O. Fackler, L. Urbán, G. M. Bilei, N. E. Moulai, Z. W. Yin, Ren-Yuan Zhu, C. Zaccardelli, H. A. Rizvi, I. Clare, J. Busenitz, P. Göttlicher, D. Z. Shen, C. Li, J. M. Salicio, Luciano Barone, Ying Wu, J. F. Zhou, H. R. Gustafson, J. A. Bakken, A. Arefiev, A. Engler, W. Ruckstuhl, S. C. Tonwar, P. Schmitz, S. Patricelli, Alexei Klimentov, S. N. Ganguli, Crisostomo Sciacca, A. Chen, R. Fabbretti, R. Sehgal, S. L. Wu, E. Fiandrini, L. Martinez-Laso, M. S. Sarakinos, L. Antonov, W. J. Metzger, Frank Filthaut, Thomas Ferguson, Q. Ye, J. B. Ye, An.A. Vorobyov, T. Matsuda, Q.Y. Yang, R. Mount, Aa Vorobyov, M. MacDermott, G. Sauvage, A. Gurtu, K. Freudenreich, P.V.K.S. Baba, H. L. Zhuang, M.L. Chen, H. S. Fesefeldt, Marco Pieri, C. Rippich, R. Leiste, Z. Y. Lin, K. Sudhakar, O. Adriani, V. Commichau, H. J. Schreiber, C. Neyer, M. A. Niaz, E. Brambilla, Lucas Taylor, M. Capell, Yanwen Liu, J. Krizmanic, A. Marchionni, Marco Meschini, C. Grinnell, Harvey B Newman, K. Hilgers, A. Hasan, Marcella Diemoz, Yuehong Xie, M. Vivargent, Christine Buisson, B. N. Jin, H. Nowak, V.R. Krastev, B. Monteleoni, F. Sticozzi, Leonardo Merola, P. Extermann, Y. D. Xu, Z. F. Gong, Yu. Kamyshkov, Z.Z. Xu, I. Leedom, J. Behrens, H. Hofer, P. J. Li, K. L. Tung, C. Spartiotis, T. Kramer, G. Von Dardel, J. J. Blaising, Sabine Riemann, A. Degré, E. Gonzalez, Z. M. Wang, F. Marzano, G. Coignet, C. Maña, I. C. Brock, W. Krenz, K. Deiters, Christopher George Tully, T. Azemoon, P. Lebrun, P. Blömeke, G. B. Mills, W. Kittel, BT Bouwens, H. Haan, K. N. Qureshi, C. Dionisi, W.W. Kinnison, Pablo Garcia-Abia, S. Lanzano, Bernardo Adeva, L. Li, Wolfgang Lohmann, Marcos Cerrada, R. Morand, Z. L. Xue, C. G. Yang, Mariagrazia Alviggi, W. Wallraff, Alain Hervé, A. Bay, Y.P. Tong, H. Vogt, B. Bertucci, G. Trowitzsch, E. Nagy, I. Vetlitsky, Howard A. Stone, Jozsef Toth, U. Uwer, J. Lettry, Claudio Luci, Zp Zhang, Carlo Civinini, S. Beingessner, J. Salicio, S. X. Wu, Nicanor Colino, M. Steur, M. Möller, D. Duchesneau, F. Tonisch, Q. Fan, M. Maolinbay, G. Raven, X.G. Li, M. Aguilar-Benitez, B. P. Roe, J. Mnich, Alberto Aloisio, A. Ricker, M. Schneegans, Elisabetta Gallo, V. Shevchenko, J.F. Li, R.B. Sutton, D. DiBitonto, Ph. Rosselet, Herwig Schopper, M. White, A. Rubbia, T. Foreman, H. F. Chen, H. Suter, Th. Meinholz, X. W. Tang, Y. H. Chang, George Alverson, G. Forconi, J. Weber, B. L. Betev, Valentin V. Khoze, I. Sheer, P. A. Piroué, J. Bao, S. Reucroft, Vineet Kumar, Peter Denes, A. Bujak, Oliver Kornadt, M. Pohl, Paolo Bagnaia, G. Chiefari, S. Shotkin, D. Perret-Gallix, S. Shevchenko, G. Morand, F. Behner, R. Malik, X. R. Shi, Felicitas Pauss, J. M. Lubbers, S. Rosier-Lees, P. Le Coultre, C. R. Wang, R. Starosta, D. Luckey, Zhuoxiang Ren, Gy L. Bencze, Reinhard W. Schulte, F. C. Erné, M. Wadhwa, D. J. Schotanus, J. M. You, M. Fabre, N. Produit, Georgi Sultanov, Fl Linde, T. S. Dai, G. A. Yang, R. A. Khan, A. A. Syed, V. P. Andreev, F. Cesaroni, G.J. Bobbink, M. Chemarin, B.C. Stringfellow, M. Yzerman, F. Crijns, J. Y. Liao, G. M. Chen, R.J. Wu, Jun Guo, B. Lindemann, Emilio Leonardi, J. Schütte, G. Finocchiaro, R. Bock, Marcel Merk, O. Rind, Hafeez R. Hoorani, J. Perrier, D. Kirkby, L. Baksay, F. Bruyant, A. Böhm, Kajari Mazumdar, S. Khokhar, X. J. Yan, S. Müller, W. G. Ma, Xd Cai, M. Fukushima, D. Wright, A. Kunin, G. Landi, H. Anderhub, J. M. Le Goff, G. S. Sanders, P. G. Seiler, J. A. Rubio, Sw. Banerjee, P. Zemp, R. de Asmundis, Manjit Kaur, M. J. Glaubman, H. Akbari, H. El Mamouni, P. Arce, D. Goujon, Daqiang Zhang, Vincenzo Innocente, A. Sopczak, R. D'Allessandro, D.W. Schmitz, G.G.G. Massaro, Robert Clare, Igor Vorobiev, M. Hebert, Thomas Hebbeker, Panos A Razis, X.L. Wang, Paul Lecoq, R. W. Kraemer, M. Napolitano, A. Gordeev, Stéphane Jézéquel, E. Soderstrom, H. S. Chen, J. Berdugo, L. Servoli, Z.Q. Yang, F. Plasil, Mingshui Chen, D. Ren, U. Vikas, A. Contin, Alexander Savin, M. Guanziroli, J. P. Martin, E. Shumilov, V. Shoutko, M. Tonutti, D. Pandoulas, T. McMahon, B., Adeva, O., Adriani, M., Aguilarbenitez, 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, 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, U., Becker, F., Behner, J., Behren, S., Beingessner, G. L., Bencze, J., Berdugo, P., Berge, B., Bertucci, B. L., Betev, 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, F., Bruyant, C., Buisson, A., Bujak, J. D., Burger, J. P., Burq, J., Busenitz, X. D., Cai, M., Capell, M., Caria, G., Carlino, 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, W. Y., Chen, Chiefari, Giovanni, C. Y., Chien, M., Chmeissani, C., Civinini, I., Clare, R., Clare, H. O., Cohn, G., Coignet, N., Colino, V., Commichau, G., Conforto, A., Contin, F., Crijn, 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, Q., Fan, S. J., Fan, O., Fackler, J., Fay, T., Ferguson, 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, M., Glaubman, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, M., Guanziroli, J. K., Guo, A., Gurtu, H. R., Gustafson, L. J., Gutay, H., Haan, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, L. S., Hsu, 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, Y., Karyotaki, M., Kaur, S., Khokhar, V., Khoze, M. N., Kienzlefocacci, W., Kinnison, D., Kirkby, W., Kittel, A., Klimentov, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, J., Krizmanic, K. S., Kumar, V., Kumar, A., Kunin, V., Lalieu, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D., Lee, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, M., Lenti, E., Leonardi, J., Lettry, P. M., Levchenko, X., Leyten, C., Li, H. T., Li, J. F., Li, L., Li, P. J., Li, Q., Li, X. G., Li, J. Y., Liao, Z. Y., Lin, F. L., Linde, B., Lindemann, D., Linnhofer, R., Liu, 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, R., Magahiz, P. K., Malhotra, R., Malik, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, A., Marchionni, 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, G., Morand, R., Morand, S., Morganti, N. E., Moulai, R., Mount, S., Muller, E., Nagy, Napolitano, Marco, H., Newman, C., Neyer, M. A., Niaz, L., Niessen, H., Nowak, D., Pandoula, M., Pauluzzi, F., Pau, F., Plasil, G., Passaleva, Patricelli, Sergio, Y. J., Pei, D., Perretgallix, J., Perrier, A., Pevsner, M., Pieri, P. A., Piroue, 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, S., Reucroft, A., Ricker, S., Riemann, O., Rind, C., Rippich, 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, W., Ruckstuhl, H., Rykaczewski, M., Sachwitz, J., Salicio, J. M., Salicio, G., Sander, A., Santocchia, M. S., Sarakino, G., Sartorelli, G., Sauvage, A., Savin, V., Schegelsky, K., Schmiemann, D., Schmitz, P., Schmitz, M., Schneegan, H., Schopper, D. J., Schotanu, S., Shotkin, H. J., Schreiber, 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, V., Shevchenko, S., Shevchenko, X. R., Shi, K., Shmakov, V., Shoutko, E., Shumilov, N., Smirnov, E., Soderstrom, A., Sopczak, C., Spartioti, T., Spickermann, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, F., Sticozzi, W., Stoeffl, 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. 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P., Zhang, J. F., Zhou, R. Y., Zhu, H. L., Zhuang, A., Zichichi, and IHEF (IoP, FNWI)

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, E+E ANNIHILATION, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, Branching fraction, Electron–positron annihilation, Hadron, AVERAGE LIFETIME, 01 natural sciences, DECAYS, Nuclear physics, 0103 physical sciences, BOTTOM HADRONS, UPDATE, QUARKS, Impact parameter, FRAGMENTATION, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Lepton
Abstract

From a fit to the impact parameter distribution of lepton tracks from semileptonic b decay, the lifetime of B-hadrons produced in e + e − collisions at the Z 0 is measured to be 1.32±0.08 (stat.)±0.09(syst.) ps. Combined with an earlier measurement of the branching ratio Br(B→l ν X), the CKM matrix element | V cb | is determined to be 0.046±0.002 (exp.) −0.003 +0.004 (theory).

Published
1991

14. Search for lepton flavour violation in Z$^0$ decays

Author

J. Y. Liao, M. Möller, Emilio Leonardi, J. Schütte, H. F. Chen, Y. Mi, C. Dionisi, R. Bock, H. R. Gustafson, Pablo Garcia-Abia, Ren-Yuan Zhu, Alain Hervé, M. Fabre, J. M. Salicio, An.A. Vorobyov, Luciano Barone, E. Valente, A. Bay, L. Baksay, S. X. Wu, F. Bruyant, G. Chiefari, D. Duchesneau, T. Angelov, T. Matsuda, S. C. Tonwar, Sc Yeh, R. Mount, Georgi Sultanov, S. Shevchenko, Carlo Civinini, M. Maolinbay, D. McNally, J.F. Li, G. Raven, T. S. Dai, Q.Y. Yang, R. A. Khan, K. Lanius, Jianming Qian, G. Hu, F. Behner, R.B. Sutton, D. DiBitonto, G. Fernandez, L. Romero, H. Suter, Ph. Rosselet, O. Adriani, Frank Filthaut, X.G. Li, Lucas Taylor, Thomas Ferguson, Dimitri Bourilkov, M. Aguilar-Benitez, Herwig Schopper, E. Dénes, V. Commichau, H. J. Schreiber, Valentin V. Khoze, M. Steuer, G. Forconi, J. Weber, M. Bourquin, X. Leytens, G. Viertel, C-Q. Li, V. P. Andreev, E. Brambilla, C. Neyer, G.J. Bobbink, R. Bizzarri, A. Hasan, F. DeNotaristefani, D. Pandoulas, T. McMahon, L. Leistam, N. E. Moulai, M. Chemarin, P. Berges, M. White, Carlos Willmott, R. Leiste, L. Antonov, Marta Felcini, D. Perret-Gallix, K. Strauch, M. Fukushima, A. A. Syed, Speranza Falciano, M. J. Glaubman, Y. D. Xu, Z. F. Gong, Francesco Becattini, M. Capell, J. Krizmanic, Hans J. Vogel, S. Morganti, G. M. Chen, Y. F. Wang, H. T. Li, R.J. Wu, M. Sachwitz, V.R. Krastev, E. Gonzalez, B. Monteleoni, F. Sticozzi, B. N. Jin, B.C. Stringfellow, R. Barillère, G. Sauvage, H. Nowak, M. Yzerman, F. Crijns, Petr Levchenko, S. Röhner, S. Lanzano, Bernardo Adeva, H. El Mamouni, J. Behrens, T. Spickermann, P. J. Li, P. Schmitz, J. Schwenke, X. Y. Cui, E. Fiandrini, L. Martinez-Laso, C. Spartiotis, F. Wittgenstein, P. Lebrun, Jun Guo, B. Lindemann, Wolfgang Stoeffl, L. Ludovici, M. Chmeissani, R. Liu, M. Bocciolini, P. Arce, A. Arefiev, K. Freudenreich, S. S. Gau, T. J. Wenaus, G. Finocchiaro, BT Bouwens, Giovanni Ambrosi, E. Drago, L. Niessen, G. Schwering, H.R. Dimitrov, R. Morand, Z. L. Xue, J. M. Le Goff, G. S. Sanders, Howard A. Stone, Harvey B Newman, G. Herten, Marcel Merk, Aa Vorobyov, Yu. Kamyshkov, J. Perrier, W. Wallraff, T. Driever, D. Goujon, P.V.K.S. Baba, D. Linnhofer, H. L. Zhuang, Bernard Ille, K. Hilgers, Q. Fan, M. S. Sarakinos, J. D. Burger, G. Rahal-Callot, P. G. Seiler, Mw Gruenewald, J. A. Rubio, P. Vikas, Qiang Li, R. Malik, W. Friebel, O. Rind, G. B. Mills, O. Fackler, Vincenzo Innocente, M. N. Kienzle-Focacci, R. Rosmalen, U. Uwer, A. Chen, J. Salicio, M. Vivargent, Federico Carminati, J. M. Lubbers, M.L. Chen, S. Banerjee, M. Caria, L. Urbán, Roberto Battiston, Hafeez R. Hoorani, F. Marzano, K. Schultze, E. Tarkovsky, C. G. Yang, A. Gordeev, R. Magahiz, C. Maña, D. Lanske, Y. H. Chang, A. Sopczak, G. Coignet, W. Krenz, J. D. Swain, U. Herten, Jiunn-Wei Chen, Marcella Diemoz, Wen-Gan Ma, Peter Denes, I. C. Brock, Raffaello D'Alessandro, K. S. Kumar, B. Borgia, Igor Vorobiev, J. Ulbricht, C. Grinnell, D. Z. Shen, M. Hebert, R. Sehgal, Zhuoxiang Ren, J. A. Bakken, Paolo Bagnaia, Bolek Wyslouch, Qian Wang, M. Pauluzzi, M. Wadhwa, D. J. Schotanus, U. K. Chaturvedi, S. Schulte, Y. S. Lu, Samuel C.C. Ting, J. M. You, Steven Goldfarb, Alberto Aloisio, G. Von Dardel, A. Degré, W. Kittel, D. Antreasyan, K. Schmiemann, A. Savin, K. Sudhakar, Marco Meschini, Qi An, A. Ricker, N. Produit, L. Z. Sun, P. McBride, G. M. Bilei, G. A. Yang, V. Lalieu, D. P. Stickland, Kajari Mazumdar, A. Malinin, Jérôme Rose, G. Passaleva, J. H. Field, H. Anderhub, C. Y. Chien, P. Marchesini, Leonardo Merola, Ming Zeng, C. F. He, Panos A Razis, Th. Meinholz, I. Clare, J. Busenitz, S. Khokhar, D. Gele, X. J. Yan, S. Müller, Y. Mir, C. H. Ye, V. Plyaskin, X. L. Wang, E. Nagy, Yuehong Xie, Christopher George Tully, X. W. Tang, M. Röhner, V. Koutsenko, Christine Buisson, H. Janssen, K.S. Yang, L.S. Hsu, P. Göttlicher, I. Sheer, P. A. Piroué, P. Duinker, Xd Cai, Z. M. Wang, Wolfgang Lohmann, H. Vogt, T. Azemoon, M. Schneegans, D. M. Lee, George Alverson, Tariq Aziz, A. Pevsner, B. Bertucci, J.P. Burq, Y.F. Mao, R. T. Van de Walle, J. B. Ye, Jozsef Toth, M. T. Dova, J. Lettry, Claudio Luci, P. Blömeke, Nicanor Colino, Vineet Kumar, Stéphane Jézéquel, P. Zemp, Elisabetta Gallo, A. Kasser, Guofan Hu, H. O. Cohn, Barry Blumenfeld, R. de Asmundis, L. Li, I. Scott, Chenliang Wang, S. Patricelli, F. Ferroni, Y. Zeng, S. Reucroft, Marcos Cerrada, A. Klimentov, Valery Schegelsky, Antonino Zichichi, A. C. Weber, J. G. Branson, S. Shotkin, Crisostomo Sciacca, Ph Fisher, Marco Pieri, C. Rippich, H. Rykaczewski, Z. W. Yin, S. N. Ganguli, Simonetta Gentile, J. Berdugo, Y. Karyotakis, Atul Gurtu, K. Deiters, Zhen Zhang, B. P. Roe, Q. Ye, Kenneth Francis Read, D. Hauschildt, A. Bujak, Oliver Kornadt, M. Pohl, Yu. Galaktionov, J. Alcaraz, G. Mirabelli, Attilio Santocchia, Jean Fay, M. Dhina, D. Boutigny, K. Lübelsmeyer, Piero Spillantini, Z. Y. Lin, Z.Q. Yang, J.H. Wang, Cheng Chen, W. J. Burger, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, A. Kunin, Lamberto Luminari, A. Böhm, C. Zaccardelli, W. W. Kinnison, L. J. Gutay, U. Becker, W. J. Metzger, D. Kirby, M. Guanziroli, R. C. Ball, Pierre Lecomte, I. Duran, F. L. Linde, G. Sartorelli, J. P. Martin, E. Shumilov, Charles Timmermans, F. J. Eppling, L. W. Jones, D. S. Yan, S. M. Ting, V. Shoutko, W. Y. Chen, M. Tonutti, F. Plasil, Mingshui Chen, Adrian Biland, G. Gratta, K.D. Shmakov, S. J. Fan, D. Ren, U. Vikas, A. Contin, A. Engler, H. S. Fesefeldt, R. Weill, M. Lenti, A. L. Anderson, Ying Wu, J. F. Zhou, M. MacDermott, T. Kramer, M. A. Niaz, J. J. Blaising, P. Extermann, H. Haan, I. Leedom, B. Z. Yang, Mariagrazia Alviggi, H. Hofer, K. L. Tung, I. Vetlitsky, Egidio Longo, J.C. Sens, M. M. Ilyas, G. Landi, Simone Paoletti, Manjit Kaur, H. Akbari, Daqiang Zhang, Y. J. Pei, D.W. Schmitz, G.G.G. Massaro, D.N. Mao, Robert Clare, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Gailloud, M. Napolitano, S. Kirsch, E. Soderstrom, H. S. Chen, L. Servoli, D. Wright, R. Fabbretti, S. L. Wu, X. R. Shi, Felicitas Pauss, S. Rosier-Lees, P. Le Coultre, Zheng Wang, Yanwen Liu, Sabine Riemann, K. N. Qureshi, R. Starosta, D. Luckey, Gy L. Bencze, Reinhard W. Schulte, A. M. Cartacci, S. Beingessner, R. Raghavan, J. Mnich, A. C. König, Y.P. Tong, F. C. Erné, Laurent Vuilleumier, A. Rubbia, T. Foreman, J. Bao, R. L. Sumner, G. H. Wang, J. Wenninger, V. Pojidaev, Nikita Smirnov, B. L. Betev, G. Morand, F. Cesaroni, 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, B., Adeva, O., Adriani, M., Aguilarbenitez, 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, 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, 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, F., Bruyant, C., Buisson, A., Bujak, J. D., Burger, W., 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, C., Civinini, I., Clare, R., Clare, H. O., Cohn, G., Coignet, N., Colino, V., Commichau, A., Contin, F., Crijn, 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, Q., Fan, S. J., Fan, O., Fackler, J., Fay, M., Felcini, T., Ferguson, 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, M., Glaubman, S., Goldfarb, Z. F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, M., Guanziroli, J. K., Guo, A., Gurtu, H. R., Gustafson, L. J., Gutay, H., Haan, A., Hasan, D., Hauschildt, C. F., He, T., Hebbeker, M., Hebert, G., Herten, U., Herten, A., Herve, K., Hilger, H., Hofer, H., Hoorani, L. S., Hsu, 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, Y., Karyotaki, M., Kaur, S., Khokhar, V., Khoze, M. N., Kienzlefocacci, W., Kinnison, D., Kirkby, S., Kirsch, W., Kittel, A., Klimentov, A. C., Konig, O., Kornadt, V., Koutsenko, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, J., Krizmanic, K. S., Kumar, V., Kumar, A., Kunin, V., Lalieu, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D., Lee, I., Leedom, J. M., Legoff, L., Leistam, R., Leiste, M., Lenti, E., Leonardi, J., Lettry, P. M., Levchenko, X., Leyten, C., Li, H. T., Li, J. F., Li, L., Li, P. J., Li, Q., Li, X. G., Li, J. Y., Liao, Z. Y., Lin, F. L., Linde, B., Lindemann, D., Linnhofer, R., Liu, 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, R., Magahiz, P. K., Malhotra, R., Malik, A., Malinin, C., Mana, D. N., Mao, Y. F., Mao, M., Maolinbay, P., Marchesini, 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, G., Morand, R., Morand, S., Morganti, N. E., Moulai, R., Mount, S., Muller, E., Nagy, Napolitano, Marco, H., Newman, C., Neyer, M. A., Niaz, L., Niessen, H., Nowak, D., Pandoula, M., Pauluzzi, F., Pau, F., Plasil, G., Passaleva, S., Paoletti, Patricelli, Sergio, Y. J., Pei, D., Perretgallix, J., Perrier, A., Pevsner, M., Pieri, P. A., Piroue, 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, S., Reucroft, A., Ricker, S., Riemann, O., Rind, C., Rippich, 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, J., Salicio, J. M., Salicio, G., Sander, A., Santocchia, M. S., Sarakino, G., Sartorelli, G., Sauvage, A., Savin, V., Schegelsky, K., Schmiemann, D., Schmitz, P., Schmitz, M., Schneegan, H., Schopper, D. J., Schotanu, S., Shotkin, H. J., Schreiber, 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, K., Shmakov, V., Shoutko, E., Shumilov, N., Smirnov, E., Soderstrom, A., Sopczak, C., Spartioti, T., Spickermann, P., Spillantini, R., Starosta, M., Steuer, D. P., Stickland, F., Sticozzi, W., Stoeffl, 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, E., Tarkovsky, L., Taylor, C., Timmerman, S. C., C., S. M., Ting, Y. P., Tong, M., Tonutti, S. C., Tonwar, J., Toth, 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, G., Vondardel, 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., 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. L., 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, M., Yzerman, C., Zaccardelli, P., Zemp, M., Zeng, Y., Zeng, D. H., Zhang, Z. P., Zhang, J. F., Zhou, R. Y., Zhu, H. L., Zhuang, A., Zichichi, and IHEF (IoP, FNWI)

Subjects
Nuclear and High Energy Physics, Particle physics, Large electron positron collider, Flavour, 01 natural sciences, BHABHA SCATTERING, MONTE-CARLO, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, Z0, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, Boson, HIGH-ENERGIES, Physics, 010308 nuclear & particles physics, ELECTROWEAK PARAMETERS, Física, MODEL, Lepton flavour violation, PHOTON CORRECTIONS, TAU, Particle Physics - Experiment, Lepton
Abstract

We have searched for lepton flavour violation in Z0 boson decays into lepton pairs, Z0→μτ, Z0→eτ, and Z0→eμ. The data sample is based on an integrated luminosity of 10.4 pb-1 corresponding to 370 000 Z0’s produced. We obtain upper limits on the branching ratios of 4.8 X 10-5 for the μτ 3.4 X 10-5 for the eτ and 2.4 X 10-5 for the eμ decay modes at the 95% confidence level., Facultad de Ciencias Exactas

Published
1991
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15. A direct determination of the number of light neutrino families from e+ e- → vvγ at LEP

Author

T. Hebbeker, M. Diemoz, A. Kunin, D. Perret-Gallix, B. Z. Yang, B. Monteleoni, D. McNally, Y. F. Mao, H. S. Chen, D. Gele, T. Driever, G. J. Bobbink, D. Bourilkov, A. A. Vorobyov, C. Grinnell, H. Janssen, T. Azemoon, T.R. McMahon, J. Fay, D. Kirby, C. Willmott, Q. Li, S. Falciano, U. K. Chaturvedi, H. Stone, B.C. Stringfellow, Yu. Galaktionov, R. Liu, X. J. Yan, P. Kapinos, H. Anderhub, W. Friebel, J. Rose, C. Zaccardelli, Simonetta Gentile, A. Rubbia, M. Bocciolini, Y. F. Wang, Q. Y. Yang, Jozsef Toth, X. R. Shi, P. V.K.S. Baba, Claudio Luci, S. Paoletti, A. Krovshich, R de Asmundis, K. Hilgers, C. Chen, H. A. Rizvi, M. Lenti, A. A. Syed, A. Böhm, H. J. Schreiber, M. Yzerman, R. Raghavan, N. Produit, W. T. Lin, V. R. Krastev, R. J. Wu, L. Z. Sun, H. Hoorani, B. Ille, M. Gailloud, D.N. Mao, C-Q. Li, Z. Q. Yang, D. Pandoulas, J. Bao, J. Behrens, E. Longo, R. Rosmalen, G. Yang, M. MacDermott, G. Hu, T. Angelov, Z. W. Yin, D. S. Yan, K. S. Yang, C. R. Wang, K. Lanius, Z. Y. Lin, Jianming Qian, V. Kumar, P. McBride, G. Landi, G. Organtini, C. Y. Chien, R. Barillère, C. Neyer, J. Ulbricht, R. Bizzarri, S. Reucroft, G. Schwering, I. Leedom, N. E. Moulai, M. Rescigno, Yu. Kamyshkov, A. Biland, M. Möller, M. Röhner, J. Schütte, H. F. Chen, Y. Mir, T. Foreman, S. Shotkin, M. Wadhwa, Bolek Wyslouch, Qian Wang, Vincenzo Innocente, M. Zeng, M. Maolinbay, M. G. Alviggi, W. J. Burger, Thomas Ferguson, Am Cartacci, P. Göttlicher, Mw Gruenewald, G. B. Mills, D. Boutigny, R. Weill, X. G. Li, B. L. Betev, I. Clare, J. Busenitz, D. Duchesneau, O. Fackler, P. Vikas, F. Crijns, M. Biasini, D. Luckey, T. Kramer, Gy L. Bencze, G. Passaleva, P. Spillantini, Y. G. Wu, D. Antreasyan, H. O. Cohn, L. Baksay, F. Bruyant, H. R. Dimitrov, G. Herten, D. Hauschildt, F. Ferroni, M. Hebert, Panos A Razis, W.W. Kinnison, M. Cerrada, S. Riemann, F. Pauss, K. S. Kumar, A. Pevsner, Z. L. Xue, G. Tsipolitis, M. Caria, S. Lanzano, E. Nagy, M. Meschini, Y. Karyotakis, S. Schulte, J. D. Swain, F. Plasil, D. Z. Shen, L. Niessen, Barry Blumenfeld, M. N. Kienzle-Focacci, M. Sachwitz, V. P. Andreev, M. A. Niaz, X. W. Tang, J. Wenninger, L. Leistam, Laurent Vuilleumier, U. Uwer, Ren-Yuan Zhu, H. Vogt, T. Aziz, R. D'Alessandro, Antonino Zichichi, A. Hasan, S. Röhner, Ph Fisher, S. Khokhar, M. Schneegans, R. Battiston, M. Fabre, H. T. Li, H. Hofer, B. Bouwens, P. Blömeke, R. Bock, P. Garcia-Abia, S. Müller, F. Sticozzi, H. El Mamouni, P. Bagnaia, C. Civinni, K. Sudhakar, Fl Linde, M. Capell, A. L. Anderson, T. S. Dai, C. Spartiotis, G. Forconi, M. Fukushima, I. Vetlitsky, S. C. Yeh, G. M. Bilei, Y. H. Chang, J.P. Burq, A. Chen, B. Bertucci, D. Linnhofer, L. Romero, H. Suter, V. Plyaskin, H. R. Gustafson, W. Wallraff, B. N. Jin, G. H. Wang, S. Shevchenko, R. Leiste, H. L. Zhuang, R. A. Khan, J. F. Zhou, M. M. Ilyas, George Alverson, J. A. Bakken, T. J. Wenaus, Z. F. Gong, V. Pojidaev, A. Aloisio, S. C. Tonwar, R. T. Van de Walle, C. H. Ye, J. Weber, A. Nadtochy, G. Chiefari, M. Kaur, Christopher George Tully, A. Savin, T. Matsuda, G. Rahal-Callot, A. Gordeev, M. Vivargent, J. S. Kapustinsky, J. C. Sens, D. P. Stickland, J. M. Lubbers, M. Merk, J. Schwenke, J. M. Le Goff, D. H. Wright, J. P. Martin, S. L. Wu, Lucas Taylor, A. Sopczak, R. Starosta, Wolfgang Lohmann, E. Shumilov, L. Ludovici, G. S. Sanders, R. Malik, S. J. Fan, F. Filthaut, D. Lanske, Jiunn-Wei Chen, D. Zhang, S. Rosier-Lees, F. Marzano, D. Fernandez, J. M. You, K. N. Qureshi, A. Gurtu, Nicanor Colino, J. A. Rubio, P. Arce, R. C. Ball, S. N. Ganguli, C. Timmermans, G. G.G. Massaro, E. Fiandrini, P. Berges, P. G. Seiler, Alexei Klimentov, P. Lebrun, G. Sartorelli, Peter Denes, D. Ren, J. B. Ye, Harvey B Newman, D. Goujon, Y. Y. Xie, K. L. Tung, M. Dhina, G. Mirabelli, H. Schopper, Y. J. Pei, Y. Liu, Y. Zeng, K.D. Shmakov, P Le Coultre, I. C. Brock, Alexander Malinin, W. Kittel, K. Hangarter, C. T. He, E. Brambilla, M. Napolitano, H. Fesefeldt, S. Beingessner, R. Schulte, A. Engler, Z. Ren, G. Coignet, K. Strauch, T. Spickermann, R. Sehgal, G. Sultanov, G. Sauvage, M. Guanziroli, R. Fabbretti, G. Finocchiaro, Guo-Ming Chen, J. Salicio, X. D. Cai, J. D. Burger, K. Lübelsmeyer, G. Fernandez, J. Lettry, G. Q. Hu, I. Scott, Q. Fan, L. Luminari, Mingshui Chen, Q. An, V. Schegelsky, K. Freudenreich, M. Pohl, S. Jezequel, Marta Felcini, A. Kasser, S. X. Wu, Andrea Contin, Z. Wang, O. Kornadt, G. Ambrosi, A. Santocchia, S. Banerjee, Y. S. Lu, X. L. Wang, J. F. Li, A. Bay, E. Gallo, R. L. Summer, U. Herten, V. Shoutko, G. Gratta, F. C. Erné, J. Shukla, J. Krizmanic, A. Tsaregorodtsev, J. Mnich, W. Krenz, L. J. Gutay, Y. D. Xu, U. Becker, D. J. Schotanus, K. Schmiemann, M. Chemarin, P. Zemp, E. Tarkovsky, U. Vikas, Hans J. Vogel, Bernardo Adeva, C. Scicca, A. C. König, K. Schultze, L. Martinez-Laso, C. G. Yang, A. Atamanchuk, F. J. Eppling, L. W. Jones, L. Antonov, S. M. Ting, Robert Clare, Ph. Rosselet, Paul Lecoq, R. W. Kraemer, S. Kirsch, P. K. Malhorta, J. H. Wang, B. Borgia, E. Soderstrom, X. Leytens, G. Viertel, M. L. Brooks, E. Gonzalez, M. S. Sarakinos, M.L. Chen, R. Morand, H. Nowak, K. Read, J. K. Guo, I. Vorobiev, Zp Zhang, P. Marchesini, H. Akbari, G. Von Dardel, K. Mazumdar, J. M. Salicio, L. Urbán, M. Tonutti, L. Servoli, P. Schmitz, F. Behner, R. Mount, P. Lecomte, E. Valente, Th. Meinholz, J. Berdugo, P. Duinker, Y. Mi, J. Perrier, I. Sheer, P. Extermann, D. M. Lee, F. Carminati, P. A. Piroué, F. Becattini, F. DeNotaristefani, M. Pauluzzi, J. Alcaraz, Marco Pieri, A. Ricker, I. Duran, R.B. Sutton, D. DiBitonto, K. Deiters, M. Steuer, B. P. Roe, A. Degré, F. Cesaroni, Samuel C.C. Ting, Steven Goldfarb, A. Bujak, L. Merola, D. Schmitz, A. Koulbardis, W. Y. Chen, E. Dénes, S. Patricelli, B. Lindemann, A. Arefiev, V. Koutsenko, P. J. Li, W. J. Metzger, L. Barone, W. G. Ma, M. Aguilar-Benitez, T. E. Coan, J. G. Branson, S. Morganti, H. Rykaczewski, S. S. Gau, F. Wittgenstein, M. Chmeissani, Z. Z. Xu, Q. Ye, O. Rind, A. Weber, E. Leonardi, J. Field, J. Y. Liao, C. Dionisi, C. Maña, Alain Hervé, E. Drago, X. Y. Cui, M. Bourquin, G. Raven, O. Adriani, M. White, M. T. Dova, Christine Buisson, Z. M. Wang, and J. J. Blaising

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Photon, Luminosity (scattering theory), 010308 nuclear & particles physics, Scattering, Physics::Instrumentation and Detectors, neutrino families, Electron–positron annihilation, Astrophysics::Cosmology and Extragalactic Astrophysics, LEP, 01 natural sciences, Resonance (particle physics), Nuclear physics, Cross section (physics), L3 detector, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, 010306 general physics, Ciencias Exactas
Abstract

The L3 detector at LEP has been used to determine the number of light neutrino families by measuring the cross section of single photon even in e+e - collisions at energies near the Z° resonance. We have observed 61 single photon candidates with more than 1.5 GeV of deposited energy in the barrel electromagnetic calorimeter, for a total integrated luminosity of 3.0 pb-1. From a likelihood fit to the single photon cross sections, we determine Nv = 3.24 ± 0.46 (statistical) _+ 0.22 (systematic)., Facultad de Ciencias Exactas

Published
1992

16. Search for narrow high-mass resonances in radiative decays of the Z0

Author

Wen-Gan Ma, R. Mount, Alberto Aloisio, A. Ricker, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Th. Meinholz, H.R. Dimitrov, X. W. Tang, I. Sheer, P. A. Piroué, Z. F. Gong, Y. Karyotakis, S. Lanzano, M. J. Glaubman, J. D. Burger, Egidio Longo, L. J. Gutay, U. Becker, H. El Mamouni, M. Bocciolini, V. Shevchenko, Jean Fay, M. Dhina, D. Boutigny, Z. Y. Lin, D. Wright, G. Rahal-Callot, M. M. Ilyas, P. Arce, D. Goujon, I. Duran, Dimitri Bourilkov, Vincenzo Innocente, X. Lue, U. K. Chaturvedi, Y. S. Lu, Y. J. Pei, M. N. Kienzle-Focacci, R. Rosmalen, F. Diez-Hedo, N. E. Moulai, Peter Denes, V. Plyaskin, Adrian Biland, K. Schultze, E. Tarkovsky, A. Sopczak, X. Leytens, M. T. Dova, Igor Vorobiev, B. Bouwens, H. O. Cohn, Jérôme Rose, B. Borgia, M. MacDermott, F. J. Eppling, L. W. Jones, D. S. Yan, K.D. Shmakov, S. J. Fan, J. Ulbricht, J. H. Field, Paolo Bagnaia, G. Herten, S. Beingessner, B. Martin, C. Y. Chien, W. Friebel, G. Faber, C. Neyer, H. Anderhub, D. Lanske, S. M. Ting, Sc Yeh, D. Z. Shen, M. A. Niaz, D. Antreasyan, J. A. Bakken, G. Sauvage, G. Landi, D.N. Mao, M. Hebert, G. Fernandez, P. Cardenal, L. Romero, J. Mnich, Panos A Razis, R. Malik, R. J. Wu, P. Extermann, Bolek Wyslouch, Qian Wang, M. Gailloud, A. Rubbia, Qi An, B. N. Jin, A. Engler, W. Ruckstuhl, H. Nowak, P. Vikas, I. Leedom, B. Z. Yang, J. Behrens, P. J. Li, H. Hofer, J. M. Lubbers, X.R. Shi, P. Blömeke, Manjit Kaur, I. Clare, J. Busenitz, P. Lebrun, K. L. Tung, Harvey B Newman, M. Yzerman, C. F. He, P. Zemp, M. Bourquin, Y. Mi, E. Isiksal, H. Janssen, K.S. Yang, R. de Asmundis, K. Hilgers, K. Strauch, W. Kittel, P. Göttlicher, J. Bao, H. Akbari, A. Gordeev, D. Linnhofer, H. S. Fesefeldt, Federico Carminati, Wolfgang Stoeffl, Simonetta Gentile, Zhuoxiang Ren, Zheng Wang, A. Pevsner, J. B. Ye, A. C. Weber, L. Zehnder, E. Nagy, S. C. Tonwar, W. Wallraff, D. J. Schotanus, U. Uwer, J. M. You, J. Berdugo, Frank Filthaut, R. Leiste, Barry Blumenfeld, R. Weill, A. Chen, F. Stocozzi, K. Sudhakar, J. Salicio, N. Produit, Thomas Ferguson, S. Banerjee, Kenneth Francis Read, Qiang Li, Z.Q. Yang, G. Conforto, G. A. Yang, M. Lenti, Tariq Aziz, J.H. Wang, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, B. Monteleoni, A. L. Anderson, A. A. Syed, M. Schneegans, D. M. Lee, T. Kramer, T. Angelov, M. Guanziroli, A. Kunin, C. Spartiotis, Marco Meschini, Ren-Yuan Zhu, Luciano Barone, L.S. Hsu, D. Kirkby, K. N. Qureshi, Zhen Zhang, J. J. Blaising, K. Lanius, D. Hauschildt, J. P. Martin, B.C. Stringfellow, A. Hasan, Ying Wu, J. F. Zhou, Q.Y. Yang, G. Hu, M. Wadha, F. Crijns, H. Haan, R. Morand, Z. L. Xue, A. Gurtu, M. Sachwitz, P. Duinker, Jozsef Toth, E. Shumilov, J. Lettry, Claudio Luci, Crisostomo Sciacca, S. Patricelli, W. J. Metzger, V. Commichau, H. J. Schreiber, D.W. Schmitz, Mariagrazia Alviggi, François Chollet, Marco Pieri, G. Mirabelli, Christopher George Tully, Jun Guo, T. Foreman, Carlos Willmott, Howard A. Stone, Elisabetta Gallo, C. Rippich, S. Schulte, V. Shoutko, G.G.G. Massaro, U. Herten, B. Lindemann, G. Schwering, K. Schmiemann, F. Tonisch, F. Carbonara, Q. Fan, Speranza Falciano, Y. F. Wang, I. Vetlitsky, G. Finocchiaro, Wolfgang Lohmann, Chenliang Wang, H. Vogt, B. Bertucci, K. Lübelsmeyer, Piero Spillantini, Y. D. Xu, G. Trowitzch, H. T. Li, F. L. Linde, A. A. Savin, Q. Ye, Marcel Merk, Nicanor Colino, D. P. Stickland, M. Tonutti, S. Reucroft, R. Liu, J. Perrier, C. Li, Robert Clare, S. Shotkin, Y. Mir, C. H. Ye, F. Plasil, Mingshui Chen, S. S. Gau, T. J. Wenaus, P.V.K.S. Baba, H. L. Zhuang, M. Möller, Thomas Hebbeker, D. Ren, Paul Lecoq, R. W. Kraemer, M. Napolitano, U. Vikas, A. Contin, H. F. Chen, Lamberto Luminari, E. Soderstrom, H. S. Chen, J. Fehlmann, G. Chiefari, S. Shevchenko, R. C. Ball, Pierre Lecomte, G. Sartorelli, Charles Timmermans, W. Y. Chen, D. Pandoulas, T. McMahon, T. Spickermann, Bernard Ille, R. Magahiz, J. D. Swain, R. L. Summer, P. McBride, G. Gratta, E. Valente, D. McNally, E. Dénes, G. Viertel, S. Morganti, J. Schwenke, X. Y. Cui, L. Martinez-Laso, M. Fabre, M. S. Sarakinos, Georgi Sultanov, T. S. Dai, R. A. Khan, M.L. Chen, V. P. Andreev, G.J. Bobbink, M. Chemarin, Marcella Diemoz, G. M. Chen, G. Von Dardel, A. Degré, S. Rosier-Lees, P. Le Coultre, P. Marchesini, Ming Zeng, M. Röhner, R. Starosta, D. Luckey, Gy L. Bencze, Reinhard W. Schulte, F. C. Erné, Y.F. Mao, R. T. Van de Walle, M. Fukushima, I. Scott, J. M. Le Goff, O. Rind, G. S. Sanders, Raffaello D'Alessandro, C. Grinnell, Hafeez R. Hoorani, Leonardo Merola, P. G. Seiler, J. A. Rubio, T. Azemoon, Petr Levchenko, S. Röhner, F. Wittgenstein, Helmut Vogel, Marcos Cerrada, L. Ludovici, M. Rubio, E. Drago, L. Niessen, A. Kasser, Guofan Hu, Sau Lan Wu, Yu. Galaktionov, J. Alcaraz, T. Driever, J. G. Branson, Kajari Mazumdar, F. Ferroni, S. Khokhar, X. J. Yan, S. Müller, O. Fackler, Y. Zeng, Cheng Chen, Z. W. Yin, L. Urbán, A. Böhm, C. Zaccardelli, S. N. Ganguli, W. W. Kinnison, Giovanni Paternoster, Xd Cai, R. Sehgal, F. Cesaroni, J. Y. Liao, H. R. Gustafson, L. Z. Sun, P. Schmitz, K. Deiters, Alexei Klimentov, Roberto Divia, K. Freudenreich, Emilio Leonardi, X. L. Wang, Yuehong Xie, M. Vivargent, B. Spiess, B. P. Roe, Christine Buisson, J. Schütte, An.A. Vorobyov, T. Matsuda, Z. M. Wang, L. Li, D. Duchesneau, R. Bock, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, A. Bujak, Oliver Kornadt, M. Pohl, Alexander Malinin, O. Adriani, A. Bay, A. Arefiev, J. M. Oian, Lucas Taylor, Carlo Civinini, M. Maolinbay, C. Maña, I. C. Brock, X.G. Li, M. Aguilar-Benitez, V. Lalieu, Herwig Schopper, L. Baksay, F. Bruyant, M. White, Aa Vorobyov, J.F. Li, V. Koutsenko, Yu. Kamyshkov, J.P. Burq, Y. H. Chang, Mw Gruenewald, G. B. Mills, H. Suter, George Alverson, C. G. Yang, Vineet Kumar, K. S. Kumar, Valentin V. Khoze, F. Marzano, G. Coignet, L. Antonov, W. Krenz, S. X. Wu, M. Capell, J. Krizmanic, A. Marchionni, R.B. Sutton, D. DiBitonto, V.R. Krastev, Ph. Rosselet, E. Gonzalez, M. Steuer, G. Forconi, J. Weber, Bernardo Adeva, D. Perret-Gallix, Samuel C.C. Ting, Steven Goldfarb, G. Passaleva, D.H. Zhang, D. Gele, R. Bizzarri, F. DeNotaristefani, L. Leistam, P. Berges, M. Maire, B. L. Betev, G. Morand, J.C. Sens, A. M. Cartacci, R. Raghavan, A. C. König, Y.P. Tong, Laurent Vuilleumier, G. H. Wang, J. Wenninger, V. Pojidaev, Nikita Smirnov, R. Fabbretti, Yanwen Liu, J. M. Salicio, 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
Physics, Nuclear and High Energy Physics, Resonancia, 010308 nuclear & particles physics, Higgs boson, Hadron, Física, large electron positron collider, 01 natural sciences, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, Large Electron–Positron Collider, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Radiative transfer, High mass, Atomic physics, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Ciencias Exactas
Abstract

We search for new resonances, Y, with mass MY, in the range from 30 to 89 GeV, produced via the reaction e+e− → Z0 →γY, where Y subsequently decays into e+e−, μ+μ− or hadrons. We use 5.5.pb−1 of data collected in the energy range 88.2 ≤ √s ≤ 94.2 GeV, near the Z0 peak. We obtain the following upper limits, at the 95% confidence level, on the product of the branching ratios: BR(Z0 → γY) × BR(Y → e+e−) < 2.8 × 10−4 for 30 < MY < 89, BR(Z0 →γY × BR(Y → μ+μ−) < 2.3 × 10−4 for 30 < MY < 89, BR(Z0→ γY) × BR(Y → hadrons) < 4.7 × 10−4 for 30 < MY < 86. These limits are valid for resonances with widths smaller than our mass resolution., Facultad de Ciencias Exactas

Published
1991
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17. Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X)

Author

Qi An, H. Janssen, F. Chollet, K.S. Yang, Petr Levchenko, J. P. Burq, S. Röhner, Y. J. Pei, F. Wittgenstein, P. Duinker, M. Sachwitz, T. Azemoon, E. Valente, E. Drago, J. Perrier, Kenneth Francis Read, L. Niessen, S. C. Tonwar, D. Wright, B. N. Jin, H. Anderhub, L. Luminari, J. J. Blaising, G. Sanders, S. X. Wu, G. Conforto, D. Hauschildt, H. Nowak, G. Mirabelli, Adrian Biland, D. Goujon, M. Gailloud, S. Shevchenko, I. Scott, R. Raghavan, J. Alcaraz, G. Schwering, A. Arefiev, O. Fackler, Wolfgang Stoeffl, K.D. Shmakov, S. J. Fan, L. Baksay, P. Cardenal, E. Soderstrom, D.W. Schmitz, G.G.G. Massaro, S. Banerjee, W. Kittel, Ph. Rosselet, A. Klimentov, R. Weill, L. Zehnder, Robert Clare, J. Busenitz, W. Wallraff, R. Liu, R. Sehgal, J. Weber, P. Bagnaia, L. Z. Sun, D. Linnhofer, Federico Carminati, H.R. Dimitrov, M. Steuer, P. Marchesini, Ming Zeng, M. Röhner, X. L. Wang, Yuehong Xie, M. Vivargent, B. Spiess, Christine Buisson, Z. M. Wang, G.B. Mills, Cheng Chen, A. Böhm, F. Ferroni, Y. Zeng, M. Bocciolini, D. Perret-Gallix, Pablo Garcia-Abia, Alain Hervé, H. S. Fesefeldt, J. Schütte, J. D. Burger, K. Sudhakar, G. Rahal-Callot, Y.F. Mao, R. T. Van de Walle, J. Field, D. Pandoulas, T. McMahon, B. L. Betev, S. S. Gau, T. J. Wenaus, P.V.K.S. Baba, Aa Vorobyov, S. Patricelli, M. Capell, J. Krizmanic, A. Marchionni, Carlo Civinini, M. Maolinbay, J. Behrens, P. J. Li, BT Bouwens, M. Maire, P. Zemp, V. Pojidaev, R. de Asmundis, Thomas Hebbeker, Paul Lecoq, M. Napolitano, M. T. Dova, H. O. Cohn, B. Martin, Q. Ye, M. N. Kienzle-Focacci, X.G. Li, M. Aguilar-Benitez, Herwig Schopper, M. White, B. Bertucci, T. Kramer, D. Gele, T. Ferguson, C. Never, H. L. Zhuang, I. C. Brock, V.R. Krastev, E. Gonzalez, B. Ille, M. Möller, D. P. Stickland, R.J. Wu, U. Uwer, A. Chen, J. Salicio, W. Krenz, D. Duchesneau, H. S. Chen, J. M. Salicio, V. Plyaskin, Raffaello D'Alessandro, C. Grinnell, F. DeNotaristefani, S. Falciano, D. McNally, D. DiBitonto, H. Haan, Mariagrazia Alviggi, A. Gordeev, Bernardo Adeva, Samuel C.C. Ting, E. Dénes, M. MacDermott, D. N. Mao, L. J. Gutay, U. Becker, P. Denes, L. Ludovici, T. Spickermann, Leonardo Merola, B. Borgia, K. Schultze, X. Leytens, G. Viertel, J. Ulbricht, G. Passaleva, R. W. Kraemer, L. Li, M. A. Niaz, X. Lue, U. K. Chaturvedi, H. F. Chen, R. L. Sumner, S. Lanzano, Y. S. Lu, I. Duran, P. Lebrun, D. Lanske, Sc Yeh, A. Gurtu, Marcos Cerrada, A. Savin, J. Schwenke, V. Shoutko, M. L. Chen, V. Shevchenko, P. Schmitz, X. Y. Cui, T. Angelov, G. Fernandez, F. J. Eppling, Crisostomo Sciacca, J. Fay, Marco Pieri, Jérôme Rose, S. Gentile, D. S. Yan, H. Newman, Z. F. Gong, C. J.W.P. Timmermans, L. Martinez-Laso, A. M. Cartacci, A. C. König, Y.P. Tong, Laurent Vuilleumier, A. Kunin, M. Rubio, G. Trowitzsch, C. Y. Chien, Ry Zhu, J. Wenninger, L. Romero, S. M. Ting, M. S. Sarakinos, J. A. Bakken, J.F. Li, K. Freudenreich, I. Leedom, B. Z. Yang, H. Hofer, K. L. Tung, A. Engler, K. Lanius, G. Hu, M. Bourquin, J. Mnich, E. Nagy, M. J. Glaubman, H. Suter, D. Antreasyan, M. Fukushima, B. P. Roe, W. Y. Chen, Wen-Gan Ma, G. Forconi, Valentin V. Khoze, M. Schneegans, G. Sauvage, N. Produit, C-Q. Li, Carlos Willmott, O. Rind, Q.Y. Yang, P. Razis, Y. F. Wang, W. Ruckstuhl, G. Landi, I. Clare, A. Bay, G. Von Dardel, J. M. Qian, A. Degré, G. Coignet, C. Maña, Alberto Aloisio, A. Ricker, L. Urban, E. Longo, J. D. Swain, Q. F. Wang, V. Commichau, H. J. Schreiber, J.C. Sens, H. T. Li, A. Rubbia, T. Foreman, G. Herten, Manjit Kaur, E. Leonardi, Th. Meinholz, G. Gratta, W. Kinnison, I. Sheer, P. Göttlicher, A. Hasan, L. Leistam, H. Akbari, Daqiang Zhang, F. Cesaroni, I. Vorobiev, M. M. Ilyas, Y. D. Xu, G. Chiefari, P. Arce, V. Lalieu, W. Friebel, G. Faber, X. W. Tang, S. Schulte, K. Schmiemann, I. Vetlitsky, Y. H. Chang, Vincenzo Innocente, George Alverson, P. Berges, J. B. Ye, T. Aziz, Vineet Kumar, Y. Mir, C. H. Ye, J. M. Le Goff, M. Lenti, A. L. Anderson, J. Bao, A. A. Syed, Ying Wu, J. F. Zhou, R. Leiste, Nikita Smirnov, D. Z. Shen, Hafeez R. Hoorani, A. C. Weber, Zheng Wang, P. G. Seiler, J. A. Rubio, P. Le Coultre, B. Monteleoni, F. Sticozzi, C. Spartiotis, Zhen Zhang, G. H. Wang, C. Dionisi, B.C. Stringfellow, Helmut Vogel, R. Starosta, R. Mount, Gy L. Bencze, R. Fabbretti, J. P. Martin, Reinhard W. Schulte, D. Luckey, F. C. Erné, Z. L. Xue, M. Yzerman, F. Crijns, M. Fabre, K. Lübelsmeyer, Piero Spillantini, C. Rippich, S. L. Wu, D. Boutigny, Georgi Sultanov, T. S. Dai, R. A. Khan, A. Zichichi, H. Stone, J. G. Branson, S. Morganti, T. Driever, G. Morand, R. C. Ball, F. Tonisch, S. Khokhar, X. J. Yan, Q. Fan, S. Müller, V. P. Andreev, K. N. Qureshi, K. Strauch, G.J. Bobbink, Yanwen Liu, Xd Cai, D. Lee, Jun Guo, J. Y. Liao, R. Morand, G. M. Chen, C. Zaccardelli, B. Lindemann, R. Bock, Sabine Riemann, E. Tarkovsky, F. Bruyant, J. Fehlmann, E. Shumilov, Dimitri Bourilkov, L. Barone, R. Malik, Pierre Lecomte, S. Goldfarb, J. M. Lubbers, N. E. Moulai, Zhuoxiang Ren, M. Wadhwa, D. J. Schotanus, L. Antonov, J. M. You, G. A. Yang, S. Beingessner, K. Hilgers, Qiang Li, P. A. Piroué, U. Herten, P. McBride, G. Finocchiaro, H. El Mamouni, M. Diemoz, R. Bizzarri, An.A. Vorobyov, T. Matsuda, O. Adriani, Lucas Taylor, Yu. Kamyshkov, Mw Gruenewald, F. Plasil, C. G. Yang, Bolek Wyslouch, K. S. Kumar, Mingshui Chen, C. F. He, A. Pevsner, Barry Blumenfeld, Valery Schegelsky, Ph Fisher, H. Rykaczewski, Y. Karyotakis, D. Ren, M. Dhina, R.B. Sutton, L. W. Jones, Z. Y. Lin, J.H. Wang, Zhongyukun Xu, H. A. Rizvi, U. Vikas, A. Contin, W. J. Metzger, F. Marzano, F. Carbonara, F. L. Linde, P. Blömeke, J. Berdugo, Z.Q. Yang, A. Malinin, M. Guanziroli, R. Magahiz, Sn Ganguli, S. Rosier-Lees, M. Tonutti, G. Sartorelli, F. Diez-Hedo, H. R. Gustafson, Y. Mi, U. Roeser, Frank Filthaut, Marco Meschini, D. Kirkby, X.R. Shi, Christopher George Tully, Wolfgang Lohmann, H. Vogt, Nicanor Colino, M. Chemarin, L.S. Hsu, Jozsef Toth, J. Lettry, Claudio Luci, Elisabetta Gallo, A. Sopczak, Chenliang Wang, Yu. Galaktionov, S. Reucroft, S. Shotkin, P. Extermann, M. Merk, P. Vikas, E. Isiksal, R. Rosmalen, A. Kasser, Guofan Hu, K. Mazumdar, V. Koutsenko, Z. W. Yin, Giovanni Paternoster, P. K. Malhotra, K. Deiters, Roberto Divia, M. Hebert, A. Bujak, Oliver Kornadt, and M. Pohl

Subjects
Physics, Nuclear and High Energy Physics, Muon, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Analytical chemistry, Electron, 01 natural sciences, Standard Model, Nuclear physics, decaimiento, 0103 physical sciences, mediciones, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Ciencias Exactas, Lepton
Abstract

We have measured the decay properties of from a study of inclusive muon and electron events. The average (e and μ) b-quark semileptonic branching ratio has been determined to be BR (b → ℓ + X) = 0.119 ± 0.003 (stat.) ± 0.006 (syst.), assuming the standard model prediction of Γbb = 378 ± 3 MeV. From the ratio of the number of dilepton events to single lepton events, we find BR (b → ℓ + X) = 0.113 ± 0.010 (stat.) ± 0.006 (syst.), without assumptions on Λbb. The partial decay width of the Z0 into has been measured to be Λbb = 385 ± 7 (stat.) ± 11 (syst.) MeV with an additional 19 MeV error from the uncertainty in BR (b → ℓ + X). The average fractional energy of bottom hadrons in events has been determined to be 〈xE〉 = 0.686 ± 0.006 (stat.) ± 0.016 (syst.)., Facultad de Ciencias Exactas

Published
1991

18. Search for leptoquarks in Z0 decays

Author

J.H. Wang, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, Samuel C.C. Ting, Tariq Aziz, A. Kunin, R. Leiste, M. Merk, H. El Mamouni, Dimitri Bourilkov, H. R. Gustafson, Steven Goldfarb, G. Passaleva, Yu. Galaktionov, G. Landi, D.W. Schmitz, Robert Clare, M. J. Glaubman, Thomas Hebbeker, Paul Lecoq, M. Napolitano, P. Vikas, E. Soderstrom, H. S. Chen, Manjit Kaur, N. E. Moulai, H. Akbari, J. M. Salicio, J. Alcaraz, M. Fabre, M. Hebert, J. Fay, B. Monteleoni, F. Sticozzi, C. Spartiotis, S. Lanzano, A. A. Syed, Crisostomo Sciacca, E. Isiksal, R. Rosmalen, François Chollet, Marco Pieri, An.A. Vorobyov, T. Matsuda, F. Carbonara, Georgi Sultanov, T. S. Dai, R. Mount, A. Arefiev, G. Sauvage, R. A. Khan, A. Zichichi, Aa Vorobyov, P. Arce, T. Driever, R. Morand, Z. L. Xue, D. Goujon, O. Adriani, R. Liu, B.C. Stringfellow, K. Sudhakar, M. Yzerman, F. L. Linde, Cheng Chen, C. Zaccardelli, Lucas Taylor, Vincenzo Innocente, V. P. Andreev, W. W. Kinnison, D. Pandoulas, Harvey B Newman, G. M. Chen, Howard A. Stone, S. S. Gau, T. J. Wenaus, P.V.K.S. Baba, G. G.G. Massaro, F. Tonisch, Q. Fan, Wen-Gan Ma, A. Kasser, Egidio Longo, Jun Guo, B. Lindemann, D. H. Zhang, H. L. Zhuang, K. Hilgers, G. Finocchiaro, Guofan Hu, Y. J. Pei, R.J. Wu, Z. F. Gong, F. Marzano, G. Coignet, W. Krenz, T. Spickermann, F. C. Erné, Alberto Aloisio, A. Ricker, J. Perrier, C. Timmermans, Bolek Wyslouch, Qian Wang, F. Plasil, Mingshui Chen, Yu. Kamyshkov, I. Sheer, A. C. König, R. Magahiz, H. Anderhub, X. Lue, U. K. Chaturvedi, J. G. Branson, J.C. Sens, L.S. Hsu, Th. Meinholz, X. W. Tang, G. J. Bobbink, M. M. Ilyas, T. Angelov, S. X. Wu, P. A. Piroué, S. Beingessner, Raffaello D'Alessandro, C. Grinnell, C. F. He, O. Rind, E. Nagy, Mw Gruenewald, G. B. Mills, Y. S. Lu, A. Pevsner, J. D. Swain, M. Möller, H. F. Chen, W. Y. Chen, J. Mnich, K. Lanius, V. Shevchenko, Hafeez R. Hoorani, Qiang Li, C. Neyer, Gerard Fernandez, F. Diez-Hedo, D. DiBitonto, Ph. Rosselet, B. Borgia, J. Ulbricht, B. Ille, C. 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Wang, Yuehong Xie, M. Vivargent, B. Spiess, Christine Buisson, Z. M. Wang, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, B. L. Betev, A. Bay, G. Morand, A. M. Cartacci, R. Raghavan, Y.P. Tong, Laurent Vuilleumier, Andre Sopczak, Carlo Civinini, M. Maolinbay, W. Kittel, X.G. Li, R. L. Sumner, J. Wenninger, V. Pojidaev, Nikita Smirnov, M. Aguilar-Benitez, Herwig Schopper, M. White, 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
Physics, Nuclear and High Energy Physics, Range (particle radiation), 010308 nuclear & particles physics, Scalar (mathematics), Charge (physics), 01 natural sciences, Resonance (particle physics), Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Leptoquark, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment
Abstract

We have searched for direct leptoquark production in Z0 decays from a scan of the Z0 resonance, in the energy range 88.2 ⩽ √s ⩽ 94.2 GeV, using 5.2 pb−1 of data. We exclude the existence of scalar leptoquarks with masses less than 41 to 44 GeV, depending on the charge assignments, at the 95% confidence level.

Published
1991
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19. Measurement of electroweak parameters from hadronic and leptonic decays of the Z$^0$

Author

E. Valente, Alberto Aloisio, A. Ricker, Th. Meinholz, R. Sehgal, D. McNally, E. Dénes, R. Fabbretti, D. Linnhofer, Federico Carminati, Dimitri Bourilkov, X. W. Tang, L. Antonov, G. Viertel, N. E. Moulai, Raffaello D'Alessandro, L. Z. Sun, R. Leiste, C. Grinnell, F. Cesaroni, L.S. Hsu, I. Sheer, P. A. Piroué, D. Gele, M. Capell, J. Krizmanic, A. Marchionni, H. R. Gustafson, An.A. Vorobyov, T. Matsuda, S. Morganti, J. Schwenke, X. Y. Cui, O. Adriani, J. P. Burq, Lucas Taylor, Leonardo Merola, Gerard Fernandez, G. Herten, Yuehong Xie, J. Y. Liao, B. Monteleoni, F. Sticozzi, M. Hebert, L. Martinez-Laso, T. Azemoon, F. Diez-Hedo, V.R. Krastev, E. Gonzalez, S. Patricelli, Q. Ye, M. Vivargent, B. Spiess, Christine Buisson, Yu. Kamyshkov, Yanwen Liu, Jozsef Toth, J. Lettry, Claudio Luci, Mw Gruenewald, G. B. Mills, W. Friebel, G. Faber, Z. M. Wang, C. G. Yang, Peter Denes, Jj Blaising, Zheng Wang, C. Spartiotis, Marcos Cerrada, Panos A Razis, Zhenyu Zhang, Emilio Leonardi, J. Schütte, K. S. Kumar, G. Sauvage, C. Neyer, Y. J. Pei, R. Liu, Paolo Bagnaia, M. Rubio, C. Dionisi, P. Marchesini, Elisabetta Gallo, R. Bock, J. M. Salicio, G. Landi, Sabine Riemann, Pablo Garcia-Abia, Ming Zeng, Axel König, Bolek Wyslouch, Qian Wang, T. Kramer, S. Lanzano, Bernardo Adeva, D. Pandoulas, D. Z. Shen, V. Lalieu, S. Rosier-Lees, B. N. Jin, H. Nowak, Sc Yeh, Alain Hervé, M. Röhner, W. Y. Chen, M. J. Glaubman, T. Spickermann, R. Morand, Z. L. Xue, A. Klimentov, P. Blömeke, A. Gordeev, L. Baksay, F. Bruyant, S. S. Gau, T. J. Wenaus, P.V.K.S. Baba, Y. Mi, A. Bay, Carlo Civinini, M. Maolinbay, Harvey B Newman, K. Hilgers, J.C. Sens, R. Mount, A. M. Cartacci, C-Q. Li, R. Raghavan, Y.P. Tong, J. A. Bakken, R. Bizzarri, C. F. He, A. Pevsner, V. Koutsenko, Yu. Galaktionov, J. Alcaraz, Howard A. Stone, F. Tonisch, Q. Fan, H. L. Zhuang, M. Yzerman, X.G. Li, M. Aguilar-Benitez, Chenliang Wang, Y.F. Mao, S. Reucroft, R. T. Van de Walle, G. Hu, Laurent Vuilleumier, V.G. Shevchenko, Bernard Ille, R. 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Y., Chiend, C., Civininib, I., Clarei, R., Clarei, G., Coignett, N., Colinoa, V., Commichauv, G., Confortob, A., Contina, F., Crijnsw, X. Y., Cuig, T. S., Daii, R., D'Alessandrob, R., de Asmundise, A., Degréa, K., Deitersaa, E., Dénesu, P., Denesq, F., De Notaristefanip, M., Dhinah, D., Dibitontoa, F., Diez Hedoa, H. R., Dimitrovk, C., Dionisip, F., Dittusa, R., Dolini, E., Drago, T., Drieverw, D., Duchesneau, P., Duinkera, I., Durana, H., El Mamouniab, A., Englera, F. J., Epplingi, F. C., Ernéw, P., Extermann, R., Fabbrettih, G., Faberi, S., Falcianop, Q., Fana, S. J., Fana, M., Fabreh, J., Faya, J., Fehlmannh, H., Fenkerf, T., Fergusonaa, G., Fernandezc, F., Ferronia, H., Fesefeldtv, J., Field, G., Finocchiarop, P. H., Fisherd, G., Forconi, T., Foremanw, K., Freudenreichh, W., Friebela, M., Fukushimai, M., Gailloudy, Galaktionovm, Y. u., E., Gallob, S. N., Gangulio, P., Garcia Abiac, S. S., Gaua, S., Gentilep, M., Glaubmanf, S., Goldfarbn, Z. F., Gonga, E., Gonzalezc, A., Gordeevm, P., Göttlicherv, D., Goujon, G., Grattaa, C., Grinnelli, M., Gruenewalda, M., Guanzirolig, A., Gurtuo, H. R., Gustafsonn, L. J., Gutayac, H., Haanv, S., Hanckev, K., Hangarterv, M., Harrisa, A., Hasang, C. F., Heaj, T., Hebbekerv, M., Hebertz, G., Herteni, U., Hertenv, A., Hervéa, K., Hilgersv, H., Hoferh, H., Hooranig, L. S., Hsuae, G., Hug, G. Q., Huaj, B., Illeab, M. M., Ilyasg, V., Innocentee, E., Isiksalh, E., Jagelg, B. N., Jinaf, L. W., Jonesn, R. A., Khang, Kamyshkovm, Y. u., Y., Karyotakist, M., Kaurg, S., Khokharg, V., Khozej, D., Kirkbyah, W., Kittelw, A., Klimentovm, A. C., Königw, O., Kornadtv, V., Koutsenkom, R. W., Kraemeraa, T., Krameri, V. R., Krastevk, W., Krenzv, J., Krizmanicd, A., Kuhnx, K. S., Kumarak, V., Kumarg, A., Kuninm, A., van Laakv, V., Lalieu, G., Landib, K., Laniusa, D., Lanskev, S., Lanzano, P., Lebrunab, P., Lecomteh, P., Lecoqa, P., Le Coultreh, I., Leedomf, J. M., Le Goffa, L., Leistama, R., Leisteai, M., Lentib, J., Lettryh, P. M., Levchenkoj, X., Leytensw, C., Liag, H. T., Liaf, J. F., Lig, L., Lih, P. J., Liaj, Q., Lig, X. G., Liaf, J. Y., Liaoaj, Z. Y., Linag, F. L., Lindeaa, D., Linnhofera, R., Liug, Y., Liug, W., Lohmannai, S., Lökösr, E., Longop, Y. S., Luaf, J. M., Lubbersw, K., Lübelsmeyerv, C., Lucia, D., Luckeyℓ, L., Ludovicip, X., Lueh, L., Luminarip, W. G., Maag, M., Macdermotth, R., Magahizr, M., Mairet, P. K., Malhotrao, R., Malikg, A., Malininm, C., Mañac, D. N., Maon, Y. F., Maoaf, M., Maolinbayh, P., Marchesinig, A., Marchionnib, J. P., Martinab, L., Martineza, F., Marzanop, G. G. G., Massarow, T., Matsudai, K., Mazumdaro, P., Mcbrideak, T., Mcmahonac, D., Mcnallyh, Meinholzv, T. h., M., Merkw, Merola, Leonardo, M., Meschinib, W. J., Metzgerw, Y., Mig, M., Mickev, U., Mickev, G. B., Millsn, Y., Mirg, G., Mirabellip, J., Mnichv, M., Möllerv, B., Monteleonib, G., Morand, R., Morandt, S., Morgantip, V., Morgunovm, R., Mountah, E., Nagyu, Napolitano, Marco, H., Newmanah, M. A., Niazg, L., Niessenv, D., Pandoulasv, G., Passalevab, Paternoster, Giovanni, Patricelli, Sergio, Y. J., Peiv, D., Perret Gallixt, J., Perrier, A., Pevsnerd, M., Pierib, P. A., Pirouéq, V., Plyaskinm, M., Pohlh, V., Pojidaevm, N., Produit, J. M., Qiani, K. N., Qureshig, R., Raghavano, G., Rahal Calloth, P., Razish, K., Readq, D., Renh, Z., Reng, S., Reucroftf, O., Rindn, C., Rippichaa, H. A., Rizvig, B. P., Roen, M., Röhnerv, S., Röhnerv, U., Roeserai, Rombachv, T. h., L., Romeroc, J., Rosev, S., Rosier Leest, R., Rosmalenw, Rosselety, P. h., J. A., Rubioa, W., Ruckstuhl, H., Rykaczewskih, M., Sachwitzai, J., Salicioa, J. M., Salicioc, G., Sartorelliℓ, G., Sauvaget, A., Savinm, V., Schegelskyj, D., Schmitzv, P., Schmitzv, M., Schneeganst, M., Schöntagv, H., Schopperaℓ, D. J., Schotanusw, H. J., Schreiberai, R., Schultev, S., Schultev, K., Schultzev, J., Schütteak, J., Schwenkev, G., Schweringv, Sciacca, Crisostomo, I., Scottak, R., Sehgalg, P. G., Seilerh, J. C., Sensw, I., Sheerz, V., Shevchenkom, S., Shevchenkom, X. R., Shiaa, K., Shmakovm, V., Shoutkom, E., Shumilovm, N., Smirnovj, A., Sopczakah, C., Spartiotisd, T., Spickermannv, B., Spiessx, P., Spillantinib, R., Starostav, M., Steuerℓ, D. P., Sticklandq, B., Stöhrh, H., Stone, K., Strauchak, B. C., Stringfellowac, K., Sudhakarv, G., Sultanova, R. L., Summerq, L. Z., Sunag, H., Suterh, R. B., Suttonaa, J. D., Swaing, A. A., Syedg, X. W., Tangaf, E., Tarkovskym, L., Taylorf, E., Thomasg, C., Timmermansw, Samuel C. C., Tingi, S. M., Tingi, Y. P., Tongae, F., Tonischai, M., Tonuttiv, S. C., Tonwaro, J., Tòthu, G., Trowitzschai, K. L., Tungaf, J., Ulbrichtx, L., Urbànu, U., Uwerv, E., Valentep, R. T., Van de Wallew, H., van der Graafw, I., Vetlitskym, G., Viertelh, P., Vikasg, U., Vikasg, M., Vivargentt, H., Vogelaa, H., Vogtai, M., Vollmarv, G., Von Dardela, I., Vorobievm, A. A., Vorobyovj, Vorobyovj, A. n. A., L., Vuileumiery, M., Wadhwag, W., Wallraffv, C. R., Wangag, G. H., Wangaa, J. H., Wangaf, O. F., Wangak, X. L., Wangag, Y. F., Wangb, Z., Wangg, Z. M., Wangg, J., Weberh, R., Weilly, T. J., Wenausi, J., Wenninger, M., Whitei, R., Wilhelmw, C., Willmottc, F., Wittgensteina, D., Wrightq, R. J., Wuaf, S. L., Wug, S. X., Wug, Y. G., Wuaf, B., Wysłouchi, Y. D., Xuaf, Z. Z., Xuag, Z. L., Xueaj, D. S., Yanaj, B. Z., Yangag, C. G., Yangaf, G., Yangg, K. S., Yangaf, Q. Y., Yangaf, Z. Q., Yangaj, C. H., Yeg, J. B., Yeh, Q., Yeg, S. C., Yehae, Z. W., Yinaj, J. M., Youg, C., Zaccardelliah, L., Zehnderh, M., Zengg, Y., Zengv, D., Zhangz, D. H., Zhangw, Z. P., Zhangag, J. F., Zhouv, R. Y., Zhuah, H. L., Zhuangaf, and A., Zichichi

Subjects
Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Electron–positron annihilation, Electroweak interaction, Hadron, Física, Weinberg angle, large electron positron collider, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, Large Electron–Positron Collider, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Partículas Elementales, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Ciencias Exactas, Lepton
Abstract

We have studied the reactions e+e−→hadrons, e+e−, μ+ μ− and τ+τ−, in the energy range 88.2 ≦ √s ≦ 94.2 GeV. A total luminosity of 5.5 pb−1, corresponding to approximately 115000 hadronic and 10000 leptonic Z0 decays, has been recorded with the L3 detector. From a simultaneous fit to all of our measured cross section data, we obtain assuming lepton universality: Mz = 91.181 ± 0.010 ± 0.02 (LEP) GeV, Γz = 2501 ± 17 MeV, Γhad= 1742 ± 19 MeV, Γt = 83.6 ± 0.8 MeV. If we do not assume lepton universality, we obtain for the partial decay widths of the Z0 into e+e−, μ+μ− and τ+ τ−: Γe = 83.3 ± 1.1 MeV, Γμ = 84.5 ± 2.0 MeV, Γτ = 84.0 ± 2.7 MeV. From the measured ratio of the invisible and the leptonic decay widths of the Z0, we determine the number of light neutrino species to be Nv =3.05±0.10. We include our measurements of the forward-backward asymmetry for the leptonic channels in a fit to determine the vector and axial-vector neutral current coupling constants of charged leptons to the Z0. We obtain g¯V = −0.046+0.015−0.012 and g¯A = −0.500 ± 0.003. In the framework of the Standard Model, we estimate the top quark mass to be mt =193+52−69 ± 16 (Higgs) GeV, and we derive a value for the weak mixing angle of sin2θW ≡ 1 − (MW/MZ)2 = 0.222 ± 0.008, corresponding to an effective weak mixing angle of sin2θ¯W = 0.2315 ± 0.0025., Facultad de Ciencias Exactas

Published
1991
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20. Hadron calorimetry in the L3 detector

Author

R.J. Wu, M.L. Chen, A. Schultz von Dratzig, S. Shevchenko, R. A. Khan, G. M. Chen, Qi An, Y. J. Pei, Yu. Kamyshkov, M. M. Ilyas, Y.B. Lin, G.B. Mills, A. Arefiev, Yu. Galaktionov, Tariq Aziz, H. Haan, K. N. Qureshi, S. N. Ganguli, V. Plyaskin, Y. S. Lu, Ying Wu, J. F. Zhou, I. Vetlitsky, B. P. Roe, M. Wadhawa, Cheng Chen, G. Schwering, K. Sudhakar, A. Savin, Marco Pieri, Steven Goldfarb, Oliver Kornadt, Vitaliy G. Shevchenko, H. Hofer, K. L. Tung, K.D. Shmakov, E. Shoumilov, Raffaello D'Alessandro, A. Marchionni, Yu. Gorodkov, A. Gurtu, X. Y. Cui, O. Adriani, R. Raghavan, E. Tarkovsky, M. Capell, J. Lettry, D. Pandoulas, R. Siedling, Y. F. Wang, T. Azemoon, Vineet Kumar, S. R. Chendvankar, Elisabetta Gallo, P. LeCoultre, W. Wallraff, S. Banerjee, H. T. Li, M. Röhner, A. Klimentov, V. Pojidaev, L. W. Jones, S.W. Wu, X. W. Tang, Antonino Zichichi, Z.F. Gong, I. Vorobiev, V. Koutsenko, S. Saran, Kajari Mazumdar, Xd Cai, V. Morgunov, P. K. Malhotra, A. Kunin, R. C. Ball, Pierre Lecomte, A. Malinin, V. Shoutko, K. Lübelsmeyer, P. Blömeke, S. C. Tonwar, H. S. Chen, A. Gordeev, Marco Meschini, J. Ulbricht, L. Niessen, Waclaw Karpinski, Carlo Civinini, X.G. Li, and B. Spiess

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Hadron, Detector, Resolution (electron density), Calorimetry, Hadron calorimeter, Nuclear physics, High Energy Physics::Experiment, Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation
Abstract

The characteristics of the L3 hadron calorimeter as realized in the observation of hadronic jets and other events from e + e − collisions at LEP are presented and discussed. The pattern-recognition algorithm utilizing the fine granulatiry of the calorimeter is described, and the observed overall resolution of 10.2% for hadron jets from Z decay is reported. The use of the calorimeter in providing information on muon energy losses is also noted.

Published
1990

21. Search for a low mass neutral Higgs boson in Z0 decay

Author

G. Landi, M. Merk, P. Vikas, Alain Hervé, R. Rosmalen, M. Fabre, A. Bay, A. A. Syed, K. Sudhakar, Georgi Sultanov, R. A. Khan, Carlo Civinini, T. Driever, M. Maolinbay, Tariq Aziz, V. P. Andreev, G.J. Bobbink, X.G. Li, M. Aguilar-Benitez, I. Duran, B.C. Stringfellow, P. Schmitz, Alexei Klimentov, J.M. Qian, Egidio Longo, J.C. Sens, M. Yzerman, F. Crijns, T. Kramer, M. Chemarin, Herwig Schopper, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, C. Camps, K. Freudenreich, F. Ferroni, Y. Zeng, Igor Vorobiev, M. White, G. M. Chen, J. J. Blaising, M. M. Ilyas, Y. Karyotakis, H.T. Li, G. Finocchiaro, Y. H. Chang, G. Fernandez, B. L. Betev, George Alverson, Panos A Razis, R. Fabbretti, H. R. Gustafson, Vineet Kumar, P. Blömeke, H. Haan, J. Behrens, P. J. Li, P. Lebrun, Fridolin Dittus, Mariagrazia Alviggi, Dimitri Bourilkov, Marco Meschini, R.J. Wu, A. Sopczak, J. Perrier, L. Baksay, Yu. Galaktionov, Crisostomo Sciacca, François Chollet, Marco Pieri, C. Rippich, D. Pandoulas, T. McMahon, B. Monteleoni, Petr Levchenko, S. Röhner, D. Kirkby, BT Bouwens, J. Alcaraz, R. Malik, T. Spickermann, L.S. Hsu, G. Morand, W. Wallraff, Guofan Hu, J.M. Lubbers, M. Bourquin, F. Wittgenstein, K. Strauch, G. Gratta, L. Urbàn, Zhuoxiang Ren, M. Wadhwa, D. J. Schotanus, Bernard Ille, R. Magahiz, J. M. You, A. Arefiev, Aa Vorobyov, E. Jagel, W. Kittel, N. Produit, Wen-Gan Ma, L. Ludovici, E. Drago, An.A. Vorobyov, T. Matsuda, A. Chen, O. Adriani, J. Salicio, Lucas Taylor, I. Vetlitsky, A. Gordeev, M. Micke, Jozsef Toth, J. Lettry, Claudio Luci, Konrad Deiters, C.Y. Chien, M. Lenti, A. L. Anderson, Cheng Chen, B. Stöhr, J. D. Swain, K. N. Qureshi, O. Rind, P. McBride, L. Niessen, Sau Lan Wu, Jean Fay, M. Dhina, D. Boutigny, D.W. Schmitz, G.G.G. Massaro, Z. Y. Lin, Elisabetta Gallo, U. Roeser, Alberto Aloisio, Y.J. Pei, M. Harris, G. A. Yang, R.C. Ball, Z.L. Xue, Adrian Biland, Wolfgang Lohmann, H. Vogt, B. Bertucci, M.L. Chen, G. Sauvage, Ying Wu, V. Plyaskin, E. Nagy, C-Q. Li, C. Zaccardelli, Nicanor Colino, Yanwen Liu, Chenliang Wang, Federico Carminati, Th. Meinholz, X. Lue, U. K. Chaturvedi, A. Böhm, Hafeez R. Hoorani, Y. S. Lu, Marcella Diemoz, G. Coignet, J. F. Zhou, Y. Mi, G. Schwering, Robert Clare, J. G. Branson, X. W. Tang, Z.Q. Yang, P. A. Piroué, D.N. Mao, Yu. Kamyshkov, K.D. Shmakov, S. J. Fan, S. Reucroft, Harvey B Newman, D. DiBitonto, Luciano Romero, Bolek Wyslouch, Qian Wang, Helmut Vogel, S. C. Yeh, M. Möller, R. Leiste, H. Fenker, E. Dénes, R. Sehgal, M. Schneegans, Jérôme Rose, J. H. Field, K. Hilgers, Ph. Rosselet, G. Trowitzsch, S. C. Tonwar, Zhen Zhang, F. Marzano, B. N. Jin, S. Rosier-Lees, W. Krenz, M. MacDermott, R. Raghavan, A. C. König, G. Mirabelli, H. F. Chen, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, L. Z. Sun, Z. W. Yin, Qiang Li, W. Böhlen, Mw Gruenewald, G. Von Dardel, S. Schulte, Frank Filthaut, M. Sachwitz, S. N. Ganguli, C. F. He, P. Le Coultre, K. Lübelsmeyer, Piero Spillantini, Y.P. Tong, M. A. Niaz, Laurent Vuilleumier, Ren-Yuan Zhu, Luciano Barone, M. Napolitano, T. Ferguson, E. Isiksal, M. Guanziroli, C. G. Yang, W. Ruckstuhl, K. Hangarter, A. Degré, X. L. Wang, S. X. Wu, L. Zehnder, M. Vivargent, Christine Buisson, G. Herten, Q.Y. Yang, T. Böhringer, W. Friebel, G. Faber, U. Herten, A. Gurtu, D. P. Stickland, P. Marchesini, A. Pevsner, Ming Zeng, R. L. Sumner, G. H. Wang, A. Engler, J. P. Martin, V. Commichau, H. J. Schreiber, J.B. Ye, S. Banerjee, Z. M. Wang, C. J.W.P. Timmermans, P. Extermann, Giovanni Paternoster, G. Chiefari, S. Shevchenko, Raffaello D'Alessandro, C. Grinnell, H. S. Chen, A. Kuhn, M. Röhner, M. Bocciolini, Lamberto Luminari, K. S. Kumar, Y. Mir, C. H. Ye, Barry Blumenfeld, R. Starosta, A.M. Cartacci, D. Luckey, H.R. Dimitrov, Gy L. Bencze, I. Leedom, B. Z. Yang, A. Hasan, S. Beingessner, H. Hofer, Kajari Mazumdar, M. Capell, J. A. Bakken, J. Wenninger, J. Fehlmann, S. Patricelli, Reinhard W. Schulte, F. C. Erné, K. L. Tung, E. Thomas, Pierre Lecomte, Y. D. Xu, M. Steuer, Y.F. Mao, V. Shevchenko, J. M. Salicio, V. Pojidaev, U. Micke, D. Perret-Gallix, H. S. Fesefeldt, Leonardo Merola, R. T. Van de Walle, G. Sartorelli, Nikita Smirnov, J. Mnich, G. Forconi, J. Weber, D. Linnhofer, Zm Wang, J.H. Wang, Zhongyukun Xu, P. K. Malhotra, S. Khokhar, R. Mount, H. A. Rizvi, A. Kunin, J. D. Burger, G. Rahal-Callot, E. Shumilov, C. Maña, P.G. Seiler, Q. Ye, I. Scott, F. Diez-Hedo, T. Azemoon, T. Foreman, C. Spartiotis, P. Duinker, J. Berdugo, M. Hebert, Peter Denes, M. Gailloud, G.B. Mills, Samuel C.C. Ting, R. Wilhelm, E. Valente, R. Bizzarri, W. J. Metzger, Paolo Bagnaia, M.C. Chen, R. Weill, T.J. Wenaus, S. Hancke, M. Schöntag, V. Shoutko, Steven Goldfarb, D. McNally, J. Bao, R. Morand, R.B. Sutton, G. Passaleva, Manjit Kaur, F. Carbonara, Marcos Cerrada, X. Leytens, G. Viertel, K. Schultze, E. Tarkovsky, H. van der Graaf, Xd Cai, L. Martinez, H. Akbari, Howard A. Stone, F. L. Linde, S. Morganti, T.S. Dai, Ian Brock, J. Schwenke, F. DeNotaristefani, F. Tonisch, X. Y. Cui, Q. Fan, R. Dolin, Daqiang Zhang, D. Zhang, U. Uwer, D. Lanske, B. Borgia, J. Ulbricht, A. van Laak, M. Fukushima, X.R. Shi, L. Leistam, J. M. Le Goff, I. Clare, B. P. Roe, J. Busenitz, Z.F. Gong, P. Göttlicher, F. Cesaroni, J. Y. Liao, J. Schütte, M. Tonutti, M. Vollmar, S. Lanzano, F. Bruyant, L. J. Gutay, U. Becker, D. Wright, Mingshui Chen, I. Sheer, J.A. Rubio, F. J. Eppling, L. W. Jones, H. El Mamouni, V. Morgunov, D. S. Yan, S. M. Ting, A. Bujak, Oliver Kornadt, M. Pohl, P. Berges, D. Ren, B. Spiess, U. Vikas, M. Maire, L. Li, D. Duchesneau, A. Contin, Alexander Malinin, Alexander Savin, V. Lalieu, V. Koutsenko, J.F. Li, J.P. Burq, H. Suter, Y.F. Wang, Valentin V. Khoze, L. Antonov, J. Krizmanic, A. Marchionni, V.R. Krastev, E. Gonzalez, Bernardo Adeva, T. Angelov, K. Lanius, G. Hu, Carlos Willmott, Speranza Falciano, D. Antreasyan, Qi An, S. Lökös, K.S. Yang, Th. Rombach, Simonetta Gentile, Kenneth Francis Read, G. Conforto, D. Hauschildt, R. Liu, S. S. Gau, P.V.K.S. Baba, H. L. Zhuang, M. J. Glaubman, P. Arce, D. Goujon, Vincenzo Innocente, H. Anderhub, R. de Asmundis, C. Dionisi, Pablo Garcia-Abia, 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), and L3

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Elementary particle, 01 natural sciences, Standard Model, Nuclear physics, Particle decay, Pair production, 0103 physical sciences, Higgs boson, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Invariant mass, 010306 general physics, Particle Physics - Experiment, Lepton, Boson
Abstract

We have searched for the neutral Higgs boson produced in the decays of the Z 0 through the process Z 0 → H 0 l + l − in the mass range M H 0 0 → hadrons we exclude a minimal standard model Higgs boson in the mass range 0 M H 0

Published
1990
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22. Test of QED in e+e−→γγ at LEP

Author

C-Q. Li, Guofan Hu, M. Guanziroli, Sc Yeh, R. Bizzarri, S. Hancke, G. Fernandez, L. Baksay, L. Leistam, L.S. Hsu, Z. W. Yin, S. N. Ganguli, E. Shumilov, S. Röhner, M. Schöntag, W. Böhlen, F. Wittgenstein, V. Shoutko, C.Y. Chien, S. Beingessner, P. Berges, M. Maire, R. Liu, L. Ludovici, E. Drago, Yu. Galaktionov, M. Fabre, R.J. Wu, J.M. Lubbers, L. Niessen, Jozsef Toth, J. Lettry, Claudio Luci, D. Pandoulas, J. Alcaraz, Tariq Aziz, V. Shevchenko, O. Rind, J. M. Salicio, M. Bourquin, Hafeez R. Hoorani, Georgi Sultanov, Fl Linde, S. S. Gau, S. X. Wu, R. A. Khan, K. Strauch, X.R. Shi, Z.Y. Lin, B. P. Roe, P.V.K.S. Baba, H. L. Zhuang, X. Lue, T. Driever, V. P. Andreev, L. Li, G.J. Bobbink, D. Duchesneau, M. Chemarin, Alexander Malinin, Elisabetta Gallo, U. Micke, M. Harris, P.G. Seiler, J. Busenitz, G. M. Chen, F. Diez-Hedo, T. Spickermann, U. K. Chaturvedi, R. Malik, Chenliang Wang, Y. S. Lu, J.M. Qian, Y. J. Pei, D. Linnhofer, M. Tonutti, R.B. Sutton, Kajari Mazumdar, S. Khokhar, T.R. McMahon, Joachim Mnich, L. Urbàn, S. Rosier-Lees, T. Riemann, J.G. Branson, F. de Notaristefani, B. Stringfellow, Z.Z. Xu, P. Le Coultre, T. Foreman, K. Hangarter, T. Böhringer, Jérôme Rose, J.F. Li, L. J. Gutay, P. Duinker, R. Starosta, D. Luckey, Gy L. Bencze, G. Herten, Peter Denes, Reinhard W. Schulte, F. C. Erné, H. Suter, Y.F. Wang, W. Friebel, G. Faber, G. Schwering, Paolo Bagnaia, U. Becker, A. Bujak, Oliver Kornadt, M. Pohl, Bernard Ille, Crisostomo Sciacca, S. Reucroft, M. Steuer, J. H. Field, G. Trowitzsch, Marco Pieri, C. Rippich, C. Dionisi, A. Leike, G. Forconi, R. Magahiz, J. Weber, Marco Meschini, Valentin V. Khoze, M. J. Glaubman, Cheng Chen, D. Antreasyan, Pablo Garcia-Abia, L. Antonov, B. Stöhr, Qi An, S. Lökös, D.N. Mao, Xd Cai, K.S. Yang, F. J. Eppling, L. W. Jones, D. S. Yan, B. Spiess, Mingshui Chen, J. Berdugo, S. M. Ting, Alain Hervé, H. R. Gustafson, Ren-Yuan Zhu, Luciano Barone, C. Souyri, R. Leiste, J. Bao, I. Sheer, G. Landi, J. Krizmanic, A. Marchionni, C. Zaccardelli, J. D. Swain, Zhuoxiang Ren, M. Wadhwa, D. J. Schotanus, J. M. You, X. L. Wang, B. N. Jin, H. Nowak, An.A. Vorobyov, H.F. Chen, V. Lalieu, J.M. Thenard, A.M. Cartacci, H.R. Dimitrov, T. Matsuda, Th. Rombach, Simonetta Gentile, V.R. Krastev, E. Gonzalez, Kenneth Francis Read, Q.Y. Yang, N. Produit, A. Kuhn, Bernardo Adeva, V. Koutsenko, V. Morgunov, A. Bay, Carlo Civinini, H. El Mamouni, O. Adriani, M. Maolinbay, X.G. Li, M. Aguilar-Benitez, I. Duran, G.B. Mills, Samuel C.C. Ting, A. Gurtu, G. A. Yang, Dimitri Bourilkov, V. Commichau, H. J. Schreiber, M. Bocciolini, A. Hasan, G. Conforto, L. Z. Sun, T. Angelov, B. Monteleoni, Y. D. Xu, C. Spartiotis, M. Merk, Raffaello D'Alessandro, C. Grinnell, Lucas Taylor, A. A. Syed, K. Lanius, E. Jagel, Federico Carminati, B. L. Betev, J. D. Burger, G. Hu, Wolfgang Lohmann, H. Vogt, P. Arce, M. Gailloud, M. G. Alviggi, P. Vikas, R. Rosmalen, Herwig Schopper, J. Behrens, M. White, J. A. Bakken, Wolfgang Lange, G. Rahal-Callot, D. Goujon, D. Ren, P. J. Li, T. Kramer, L. Zehnder, W. Wallraff, Leonardo Merola, Steven Goldfarb, Fridolin Dittus, B. Bertucci, G. Passaleva, R. Morand, Y. H. Chang, J.P. Burq, George Alverson, Z. L. Xue, S. Patricelli, W. Kittel, Carlos Willmott, Yu. Kamyshkov, J. J. Blaising, Q. Ye, Luciano Romero, Bolek Wyslouch, Nicanor Colino, A. Böhm, T. Azemoon, Howard A. Stone, E. Dénes, R. Sehgal, T.S. Dai, Speranza Falciano, F. Tonisch, Mw Gruenewald, Q. Fan, J.B. Ye, F. Crijns, H. van der Graaf, G. Coignet, S. Banerjee, G.H. Wang, U. Vikas, G. Morand, K. Schultze, Vincenzo Innocente, Y. Mi, E. Tarkovsky, K. Sudhakar, D. Zhang, Bz Yang, A. Contin, U. Uwer, Egidio Longo, Marcos Cerrada, H. T. Li, A. Chen, J. Salicio, Zp Zhang, C. G. Yang, J.C. Sens, Sebastian Nowak, C. F. He, B. Borgia, D. Lanske, J. Ulbricht, A. van Laak, Alexander Savin, K. S. Kumar, H. Haan, G. Finocchiaro, Lamberto Luminari, Igor Vorobiev, V. Plyaskin, Giorgio Gratta, S. L. Wu, Panos A Razis, Vineet Kumar, E. Nagy, Konrad Deiters, P. Schmitz, A. Pevsner, I. Clare, S. C. Tonwar, W.G. Ma, J. Fehlmann, P. Blömeke, A. Arefiev, P. Göttlicher, W. Ruckstuhl, I. Vetlitsky, Barry Blumenfeld, M. M. Ilyas, Patricia McBride, Alexei Klimentov, Alberto Aloisio, A. Gordeev, M. Micke, D. P. Stickland, C. Camps, Valery Schegelsky, Antonino Zichichi, Aa Vorobyov, P. Lebrun, Thomas Ferguson, R.C. Ball, Adrian Biland, M. Vivargent, Christine Buisson, Pierre Lecomte, Z. M. Wang, G. Sartorelli, H. Anderhub, Y. Mir, C. H. Ye, Ph Fisher, Yanwen Liu, H. Rykaczewski, R. Fabbretti, K.D. Shmakov, S. J. Fan, K. Freudenreich, M. Schneegans, Z.Q. Yang, Y. Karyotakis, Andre Sopczak, K. N. Qureshi, Th. Meinholz, G. Sauvage, F. Marzano, W. Krenz, D. DiBitonto, A. Engler, M. MacDermott, Jean Fay, M. Capell, M. Dhina, D. Boutigny, R. Raghavan, D. Perret-Gallix, H. S. Fesefeldt, X. W. Tang, W.-D. Nowak, A. C. König, Y.P. Tong, Laurent Vuilleumier, E. Isiksal, P. A. Piroué, Harvey B Newman, I. C. Brock, M. A. Niaz, G. Mirabelli, E. Thomas, J.H. Wang, P. K. Malhotra, H. A. Rizvi, K. Hilgers, A. Kunin, K. Lübelsmeyer, Piero Spillantini, R. L. Sumner, Qiang Li, M. Hebert, J. Wenninger, M. Sachwitz, F. Ferroni, V. Pojidaev, G. Fanker, S. Schulte, R. Wilhelm, Nikita Smirnov, W. J. Metzger, Y. Zeng, Richard Mount, Zm Wang, F. Carbonara, U. Herten, C. J.W.P. Timmermans, P. Extermann, L. Martinez, R. de Asmundis, I. Leedom, H. Hofer, K. L. Tung, C. Maña, M. Lenti, A. L. Anderson, Ying Wu, J. F. Zhou, Qun Wang, F. Cesaroni, J. Y. Liao, J. Schütte, F. Bruyant, M.L. Chen, R. Dolin, M. Fukushima, Marcella Diemoz, J. M. Le Goff, P.M. Levchenko, Z.F. Gong, G. Von Dardel, D. Kirkby, J. A. Rubio, A. Degré, P. Marchesini, Ming Zeng, M. Röhner, Y.F. Mao, R. T. Van de Walle, E. Valente, R. Weill, D. McNally, X. Leytens, G. Viertel, Hans J. Vogel, S. Morganti, J. Schwenke, X. Y. Cui, J. Perrier, M. Möller, G. Chiefari, S. Shevchenko, M. Vollmar, S. Lanzano, D. Wright, J.P. Martin, T.J. Wenaus, Manjit Kaur, H. Akbari, Daqiang Zhang, G. Paternoster, D.W. Schmitz, G.G.G. Massaro, Robert Clare, Ph. Rosselet, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, and H. S. Chen

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Elementary particle, 7. Clean energy, 01 natural sciences, Massless particle, Nuclear physics, Particle decay, 0103 physical sciences, Center of mass, 010306 general physics, Boson
Abstract

We have measured the cross-section of the reaction e + e − → γγ at center of mass energies around the Z 0 mass. The results are in good agreement with QED predictions. For the QED cutoff parameters the limit of Λ + > 103 GeV and Λ − 118 GeV are found. For the decays Z 0 → γ ,Z 0 → π 0 γ , Z 0 → γγγ we find upper limits of 2.9 × 10 −4 ,2.9×10 −4 ,4.1×10 −4 and 1.2×10 −4 , respectively. All limits are at 95% CL.

Published
1990

23. Search for the neutral Higgs bosons of the minimal supersymmetric standard model from Z0 decays

Author

P. Blömeke, J.Y. Liao, R.A. Khan, P. Vikas, R.J. Wu, Raffaello D'Alessandro, X. Lue, C. Grinnell, A. Gordeev, D. Lanske, Leonardo Merola, L. Antonov, Z.M. Wang, J.M. Lubbers, Y. S. Lu, Ph Fisher, H. Rykaczewski, K. Sudhakar, J. M. Salicio, C.H. Ye, R. Starosta, D. Pandoulas, Q. Z. Li, Y. Karyotakis, R. Morand, D. Perret-Gallix, B. P. Roe, K.S. Yang, D. Linnhofer, T. Azemoon, Y.P. Tong, F. Cesaroni, S. Schulte, V. Kumar, J. Krizmanic, A. Marchionni, R. Wilhelm, J. H. Field, L. J. Gutay, U. Uwer, R. Mount, U. Becker, Q. An, E. Tarkovsky, J.A. Rubio, M. Dhina, M. Micke, T. Hebbeker, M. Möller, R. Leiste, J. Schütte, E. Thomas, T.J. Wenaus, X.G. Li, P. Levchenko, V.R. Krastev, E. Gonzalez, W. Böhlen, M.L. Chen, A. Bujak, M. Pohl, R. Malik, M. Zeng, H. Akbari, M. Sachwitz, F. J. Eppling, L. W. Jones, Marcella Diemoz, G. Von Dardel, A. Degré, J.C. Sens, T. Böhringer, R. Raghavan, R. T. Van de Walle, I. Scott, S. M. Ting, J.M. You, U. Micke, B. Wysłlouch, Yu. Kamyshkov, C.F. He, C.R. Wang, Y.F. Mao, Z.W. Yin, V. Shoutko, S. Lanzano, Bernardo Adeva, J. Tòth, E. Valente, D. Ren, V. Lalieu, F. Bruyant, D. McNally, G. Paternoster, J. Rose, S. Shevchenko, A. C. König, Laurent Vuilleumier, E. Isiksal, G. Viertel, T. Angelov, C. Maña, Qian Wang, J. Lettry, Claudio Luci, S. Hancke, S. Morganti, L. Romero, P. Marchesini, X. Y. Cui, V. Khoze, Robert Clare, G. Herten, L. Urbàn, B. Monteleoni, F. Wittgenstein, R. Dolin, Lamberto Luminari, Elisabetta Gallo, Y.G. Wu, G. Faber, Mw Gruenewald, Ren-Yuan Zhu, Luciano Barone, R. L. Sumner, K. Lanius, G. H. Wang, Paul Lecoq, R. W. Kraemer, B. Stöhr, J. Salicio, M. Napolitano, L. Li, W. Ruckstuhl, W. Kittel, L. Baksay, D. Duchesneau, Y. H. Chang, M. Fukushima, P. Göttlicher, V. Plyaskin, P. Garcia-Abia, E. Jagel, C. Zaccardelli, J. Fehlmann, C. Camps, U.K. Chaturvedi, D. P. Stickland, A. Pevsner, L. Ludovici, J. Wenninger, George Alverson, C. G. Yang, Z.Q. Yang, F.C. Erné, A. Gurtu, Egidio Longo, H. Anderhub, D. J. Schotanus, Barry Blumenfeld, G. Gratta, H. S. Chen, S.X. Wu, Y. Mir, S. Rosier-Lees, A.M. Cartacci, Mingshui Chen, J.F. Li, J. M. Le Goff, K. Shmakov, Z.F. Gong, Yu. Galaktionov, D.N. Mao, H.R. Dimitrov, P. Le Coultre, S. Reucroft, E. Drago, C.Y. Chien, Konrad Deiters, J. Alcaraz, P. K. Malhotra, H. A. Rizvi, A. Zichichi, Y. Zeng, K. S. Kumar, Zm Wang, Speranza Falciano, Pierre Lecomte, M. Röhner, M. Maire, E. Nagy, N. Produit, H. van der Graaf, M. Schöntag, J. A. Bakken, H. Suter, Y.F. Wang, Federico Carminati, J. D. Burger, K. N. Qureshi, W. Krenz, G. Rahal-Callot, C. Li, I. Vorobiev, G. Trowitzsch, D.S. Yan, M. Bocciolini, H. Fenker, Alberto Aloisio, Sau Lan Wu, A. Hasan, M. Cerrada, K. Hilgers, M. Chemarin, Charles Timmermans, M. M. Ilyas, J. Ulbricht, C. Spartiotis, M.C. Chen, Helmut Vogel, O. Kornadt, T. Driever, R. Schulte, J. G. Branson, Y. Liu, L. Niessen, Y. D. Xu, Samuel C.C. Ting, A. Savin, D. Wright, R. Fabbretti, M. Tonutti, W. Wallraff, D. Boutigny, U. Roeser, M. Gailloud, H.F. Chen, R. Liu, J. Behrens, S. Patricelli, G. Sartorelli, W. J. Metzger, G.G.G. Massaro, F. Carbonara, D. Luckey, Gy L. Bencze, R. Rosmalen, R. Bizzarri, A. A. Syed, Ian Brock, F. DeNotaristefani, Sc Yeh, A. Klimentov, Kajari Mazumdar, L. Martinez, A. Kuhn, S. Khokhar, S. N. Ganguli, J. Schwenke, F. Tonisch, Fridolin Dittus, M. MacDermott, B.C. Stringfellow, J.M. Qian, Q. Ye, V. Schegelsky, K. Freudenreich, Jj Blaising, T. Kramer, V. Pojidaev, Th. Meinholz, S.S. Gau, P.V.K.S. Baba, H. Fesefeldt, Howard A. Stone, Steven Goldfarb, L. Leistam, A. Malinin, T.S. Dai, G. Morand, Q. Fan, R.B. Sutton, G. Passaleva, H. El Mamouni, R. de Asmundis, Dimitri Bourilkov, P.J. Li, F. L. Linde, H. Vogt, G. Hu, V. Commichau, U. Vikas, M. Bourquin, E. Dénes, K. Strauch, X. W. Tang, Xd Cai, I. Sheer, A. Contin, W. Friebel, J.P. Burq, M. A. Niaz, G.Q. Hu, H. R. Gustafson, B. Spiess, M. Harris, F. Crijns, J.F. Zhou, D. Schmitz, Jian Wang, P. A. Piroué, A. Sopczak, J. Berdugo, H. L. Zhuang, A. Kunin, X.L. Wang, G. Finocchiaro, P. Extermann, K. Lübelsmeyer, Z.Z. Xu, D.H. Zhang, P. Berges, M. Madhwa, B. Borgia, A. van Laak, B. Ille, A. Böhm, I. Leedom, C. Dionisi, V. Koutsenko, G. Sauvage, H. Hofer, K. L. Tung, An.A. Vorobyov, T. Matsuda, Marcel Merk, D. Antreasyan, M. Guanziroli, G. Mirabelli, G. Yang, B.Z. Yang, Mariagrazia Alviggi, H.T. Li, C. Willmott, M. J. Glaubman, G. Schwering, S. Röhner, S. Lökös, C. Buisson, U. Herten, Alain Hervé, I. Vetlitsky, J. Perrier, G. Coignet, O. Adriani, Lucas Taylor, K. Hangarter, S.J. Fan, P. Duinker, Y.J. Pei, Th. Rombach, J. Fay, X.R. Shi, Z.L. Xue, B. N. Jin, I. Clare, J. Busenitz, Piero Spillantini, R. Weill, A. Bay, Simonetta Gentile, Q.Y. Yang, M. Schneegans, V. Morgunov, A. Arefiev, Harvey B Newman, Z.Y. Lin, P. Arce, R.C. Ball, D. Goujon, Adrian Biland, D. DiBitonto, Kenneth Francis Read, Carlo Civinini, J. Bao, W. Lohmann, Ph. Rosselet, T. Spickermann, Vincenzo Innocente, G. Fernandez, M. Lenti, M. Maolinbay, G. Conforto, L. Z. Sun, M. Steuer, G. Forconi, M. Kaur, J. Weber, A. L. Anderson, X. Leytens, H. Haan, I. Duran, M. Aguilar-Benitez, M. Vollmar, Herwig Schopper, P. Lebrun, G.B. Mills, A. Engler, J. Mnich, P. Schmitz, Aa Vorobyov, M. Capell, M. White, T. McMahon, L. Zehnder, O. Rind, J.B. Ye, S. Banerjee, J.P. Martin, M. Hebert, Panos A Razis, R. Sehgal, A. Chen, F. Ferroni, S. Beingessner, N. Smirnov, F. Marzano, Zp Zhang, Tariq Aziz, G. Chiefari, E. Shumilov, H.J. Schreiber, Hafeez R. Hoorani, K. Schultze, M. Fabre, R. Magahiz, W.G. Ma, M. Vivargent, Crisostomo Sciacca, J. D. Swain, Marco Pieri, Georgi Sultanov, C. Rippich, P. McBride, V. P. Andreev, G.J. Bobbink, B.L. Betev, G. M. Chen, P.G. Seiler, F. Diez-Hedo, Peter Denes, Paolo Bagnaia, L.S. Hsu, Marco Meschini, D. Kirkby, V. Shevchenko, T. Foreman, C. Chen, B. Bertucci, D. Zhang, Nicanor Colino, Y. Mi, S. C. Tonwar, Thomas Ferguson, G. Landi, and IHEF (IoP, FNWI)

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Lattice, Electron–positron annihilation, High Energy Physics::Phenomenology, Elementary particle, Supersymmetry, Nuclear physics, Higgs boson, High Energy Physics::Experiment, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Lepton, Minimal Supersymmetric Standard Model, Boson
Abstract

We present the results from a search for the light neutral scalar Higgs boson h° and the pseudoscalar Higgs boson A° of the minimal super-symmetric standard model. The analysis is based on a data sample corresponding to 71 000 hadronic Z° decays recorded with the L3 detector at LEP. No evidence for the existence of the neutral Higgs bosons h° and A° has been found. The region of h° and A° masses up to 41.5 GeV is excluded at 95% confidence level.

Published
1990

24. Measurement of g$_A$ and g$_V$ the neutral current coupling constants to leptons

Author

R. Weill, L. Baksay, Y. Mi, R. Liu, Boleslaw Wyslouch, C.Y. Chien, E. Valente, K. Luebelsmeyer, A. Boehm, U. Micke, S. S. Gau, P.V.K.S. Baba, S. C. Tonwar, R. Mount, G. Viertel, P. J. Li, M. Guanziroli, A. L. Anderson, A. Arefev, E. Shumilov, J. Zoll, V. Shoutko, Thomas Ferguson, S. Morganti, Fridolin Dittus, John Krizmanic, Tariq Aziz, M. Tonutti, L.S. Hsu, Federico Carminati, Yu. Galaktionov, M. Vollmar, R. Leiste, J. Schwenke, X. Y. Cui, E. Dénes, G. Herten, Ying Wu, J. F. Zhou, P. Marchesini, J. Berdugo, J. Alcaraz, S.Y. Zhang, Ming Zeng, Jj Blaising, T. Kramer, T. Angelov, W. Friebel, G. Faber, Corinne Goy, D. Kaplan, U. Uwer, Y.F. Mao, A. Chen, R. T. Van de Walle, C-Q. Li, J. Salicio, G. Hu, P. Schmitz, Y. Peng, H. Haan, D. Harting, S. Patricelli, Cheng Chen, F.G. Hartjes, A. Kuhn, M. Roehner, F. de Notaristefani, D. Guesewell, X. L. Wang, S. Schulte, J. Busenitz, E. Nagy, C. Pols, L. Urbàn, Yu. Kamyshkov, Alexei Klimentov, M. Fabre, Carlos Willmott, Q. Ye, Jozsef Toth, Mw Gruenewald, Egidio Longo, I. Vetlitsky, S. Beingessner, W. Ruckstuhl, C. Camps, J. A. Bakken, Speranza Falciano, P. Bloemeke, D. P. Stickland, J. Lettry, Claudio Luci, Z. M. Wang, W. Boehlen, P. Schmitt, Crisostomo Sciacca, Dimitri Bourilkov, Zhuoxiang Ren, Marco Pieri, D. J. Schotanus, H. T. Li, C. Rippich, K. Freudenreich, R. Morand, Z. L. Xue, F. Cesaroni, X. Lue, U. K. Chaturvedi, Y. Mir, C. H. Ye, J. Onvlee, R.C. Ball, Adrian Biland, C. G. Yang, Elisabetta Gallo, J.M. Thenard, A.M. Cartacci, H.R. Dimitrov, Zhen Zhang, C. Dionisi, J. M. You, M.L. Chen, U. Becker, M. Gettner, J. Mnich, Alain Hervé, Raffaello D'Alessandro, C. Grinnell, K.D. Shmakov, S. J. Fan, N. Produit, Qi An, Y. S. Lu, Howard A. Stone, J. Y. Liao, T.S. Dai, J. D. Burger, G. Rahal-Callot, Leonardo Merola, W. Walk, G. Mirabelli, B. P. Roe, Chenliang Wang, Sandra Consuegra Rodríguez, Wen-Gan Ma, R. Bizzarri, S. Hancke, Ian Brock, M. M. Ilyas, A. Bay, D. Campana, a C. Koenig, A. Engler, Konrad Deiters, K.S. Yang, Th. Rombach, T. Azemoon, G. A. Yang, D.N. Mao, Simonetta Gentile, M. Capell, C. Souyri, B. Monteleoni, F. J. Eppling, L. W. Jones, C. Maña, V. Plyaskin, Marcella Diemoz, Piero Spillantini, D. S. Yan, W. Kittel, G. Von Dardel, Alberto Aloisio, A. Grimes, S. M. Ting, Carlo Civinini, J.M. Qian, M. Maolinbay, B. Stoehr, H. S. Fesefeldt, Jérôme Rose, R. A. Khan, G. Sauvage, Marcos Cerrada, K. Schultze, E. Tarkovsky, R. Wilhelm, Philip Kaaret, B. Borgia, F. Marzano, Kenneth Francis Read, G. Coignet, W. Krenz, P. Duinker, R. Fabbretti, X.G. Li, L. Leistam, S. Reucroft, D. Lanske, Th. Meinholz, M. Aguilar-Benitez, I. Duran, P. F. Klok, Sc Yeh, G. Fernandez, D. Pandoulas, G. Conforto, Oliver Kornadt, M. Pohl, Herwig Schopper, D. Antreasyan, H. Fenker, W. Wallraff, B. Auroy, Guofan Hu, H. F. Chen, Vincenzo Innocente, X. W. Tang, M. White, I. Sheer, P. A. Piroué, M. Gailloud, J. Bao, T. Spickermann, S. Kwan, M. MacDermott, V. P. Andreev, Harvey B Newman, C. Jakobs, F. Wittgenstein, M. Bourquin, K. Strauch, F. Bruyant, K. Hilgers, A. Heavey, G. Landi, J. G. Branson, Bernard Ille, X.R. Shi, L. Ludovici, E. Drago, L. Niessen, Sau Lan Wu, F. Ferroni, R. Magahiz, B. N. Jin, I. Clare, G.J. Bobbink, Steven Goldfarb, Y. Zeng, T. Driever, Z. W. Yin, M. Chemarin, M. Vivargent, M. Sachwitz, An.A. Vorobyov, T. Matsuda, R L. Sumner, S. N. Ganguli, P. Berges, A. Degré, M. Maire, J. D. Swain, Giovanni Paternoster, Ren-Yuan Zhu, Luciano Barone, M. Harris, R.B. Sutton, P. Vikas, P. McBride, D.H. Zhang, O. Adriani, G. Chiefari, U. Herten, L. Zehnder, M. Schneegans, P. Extermann, G. M. Chen, M. G. Alviggi, I. Leedom, B. Z. Yang, H. Hofer, L. Antonov, J. H. Field, S. Shevchenko, K. L. Tung, Yueh-Feng Liu, S. Banerjee, P. Goettlicher, F.C. Erné, Q.Y. Yang, K. Sudhakar, A. Gurtu, Helmut Vogel, B. Spiess, Lamberto Luminari, M. Schoentag, V. Lalieu, P. Lebrun, A. A. Syed, K. Lanius, J. Fehlmann, A. Marchionni, T. Riemann, V. Commichau, H. J. Schreiber, Pierre Lecomte, V. Koutsenko, M. Bocciolini, Charles Timmermans, V.R. Krastev, E. Jagel, P. Le Coultre, E. Gonzalez, F. Crijns, K. Hangarter, S. X. Wu, Y. H. Chang, J.P. Burq, George Alverson, Bernardo Adeva, R. Starosta, D. Luckey, Gy L. Bencze, Vineet Kumar, W.-D. Nowak, L. Li, Ph. Rosselet, D. Boutigny, Kajari Mazumdar, Reinhard W. Schulte, G. Schwering, Alexander Malinin, Marcel Merk, M. Steuer, X. D. Cai, G. Forconi, J.F. Li, L. Montanet, J. Schuette, J. Perrier, R.J. Wu, K N. Qureshi, J. Weber, H. Suter, Y.F. Wang, E. Perrin, B. L. Betev, D. Perret-Gallix, Valentin V. Khoze, G.B. Mills, G. Morand, J.C. Sens, R. Dolin, R. Raghavan, Y.P. Tong, Laurent Vuilleumier, E. Isiksal, M. Fukushima, G. H. Wang, S C C. Ting, J. Wenninger, V. Pojidaev, Nikita Smirnov, J. M. Le Goff, Z.F. Gong, J. A. Rubio, H. Anderhub, T.J. Wenaus, H. Akbari, T. Boehringer, M. J. Glaubman, Y. Karyotakis, C. Zabounidis, D. Goujon, D.W. Schmitz, Robert Clare, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, A. Sopczak, X. Leytens, M. Napolitano, H. S. Chen, S. Lanzano, D. Wright, J.P. Martin, Igor Vorobiev, M. Hebert, Panos A Razis, A. Gordeev, M. Micke, Z.Q. Yang, Mingshui Chen, V. Morgunov, D. Ren, A. Contin, Alexander Savin, Luciano Romero, Qian Wang, V. Shevchenko, C. F. He, P.G. Seiler, Giorgio Gratta, A. Pevsner, Peter Denes, Barry Blumenfeld, Paolo Bagnaia, Marco Meschini, E. Thomas, J.H. Wang, D. Kirkby, Zhongyukun Xu, A. Kunin, H. van der Graaf, T. Foreman, Y.J. Pei, Wolfgang Lohmann, H. Vogt, B. Bertucci, D. Zhang, J. Ulbricht, W. J. Metzger, Nicanor Colino, G.G.G. Massaro, F. Carbonara, L. Martinez, F. L. Linde, Valery Schegelsky, Antonino Zichichi, J.M. Lubbers, H. Rykaczewski, D. Linnhoefer, S. Rosier-Lees, S. Loekoes, Jean Fay, M. Dhina, Z. Y. Lin, 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, and IHEF (IoP, FNWI)

Subjects
Coupling constant, Physics, Nuclear and High Energy Physics, Neutral current, 010308 nuclear & particles physics, media_common.quotation_subject, Electron–positron annihilation, Analytical chemistry, Elementary particle, 01 natural sciences, Asymmetry, Nuclear physics, Particle scattering, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Pseudovector, Particle Physics - Experiment, media_common, Lepton
Abstract

We have measured both the rates and the forward-backward asymmetry of l+l− from Z0→l+l− (where l=μ, τ) with the L3 detector. We obtained Γll=88±4±3 MeV and the vector neutral current coupling constant, gv=0.00±0.07 and the axial vector neutral current coupling constant, gA=−0.515±0.015.

Published
1990

25. Mass limits for excited electrons and muons from Z0 decay

Author

C.R. Wang, M. Fabre, L. Antonov, Georgi Sultanov, R. A. Khan, S. Schulte, T. Driever, A. Arefiev, J. Krizmanic, A. Marchionni, V. P. Andreev, R. W. Kraemer, V.R. Krastev, W. Ruckstuhl, D. P. Stickland, Aa Vorobyov, Y. Mir, C. H. Ye, E. Gonzalez, M. Chemarin, P. Marchesini, F. Marzano, S. Lanzano, Bernardo Adeva, W. Krenz, J.M. Thenard, A.M. Cartacci, H.R. Dimitrov, P.H. Fisher, M. J. Glaubman, M. Möller, G. Landi, H. El Mamouni, C. Zabounidis, G. Rahal-Callot, R.J. Wu, A. Sopczak, P. Vikas, S. X. Wu, C-Q. Li, P. Arce, D. Goujon, J.M. Lubbers, D. Pandoulas, T. McMahon, R. Bizzarri, S. Hancke, Ian Brock, F. DeNotaristefani, L. Leistam, M. Gruenewald, K. Schultze, S. Khokar, R. Rosmalen, P. Berges, E. G. Thomas, M. Maire, Ming Zeng, Vincenzo Innocente, E. Tarkovsky, D. Lanske, T. Spickermann, S. Kwan, K. Sudhakar, Ph. Rosselet, M. Steuer, G. Forconi, J. Weber, E. Perrin, T.J. Wenaus, L. Li, Hafeez R. Hoorani, Qi An, S. Lökös, Raffaello D'Alessandro, C. Grinnell, Sc Yeh, G. Fernandez, L. Urbàn, J.F. Li, Tariq Aziz, H. Suter, Y.F. Wang, C. Dionisi, Pablo Garcia-Abia, Alain Hervé, V. Plyaskin, H. Anderhub, K.S. Yang, Th. Rombach, S. Rosier-Lees, T. Riemann, M. Röhner, L.S. Hsu, G.B. Mills, Y. Mi, Valentin V. Khoze, Bernard Ille, A. C. König, Samuel C.C. Ting, H. Akbari, P. Le Coultre, T. Kramer, J. J. Blaising, J.C. Sens, D.N. Mao, Jozsef Toth, Steven Goldfarb, J. Lettry, Claudio Luci, X.L. Wang, M. Bourquin, C. Souyri, R. Magahiz, X. Lue, U. K. Chaturvedi, Y. S. Lu, Sebastian Nowak, B. Borgia, Leonardo Merola, W. Walk, K. Hangarter, R.B. Sutton, A. Bay, R. Starosta, Simonetta Gentile, Y.F. Mao, Elisabetta Gallo, K. Strauch, M. Gailloud, D. Luckey, Gy L. Bencze, F. Cesaroni, J. D. Swain, H. Haan, A. van Laak, K. N. Qureshi, G. Chiefari, S. Shevchenko, Carlo Civinini, M. Maolinbay, H.F. Chen, Reinhard W. Schulte, Jérôme Rose, Federico Carminati, J. Y. Liao, R. de Asmundis, Suresh C Tonwar, Luciano Romero, Qian Wang, P. McBride, T. Azemoon, G. Trowitzsch, Lawrence W. Jones, X.G. Li, W.-D. Nowak, C. Timmermans, G. Schwering, M. Aguilar-Benitez, I. Duran, Herwig Schopper, M. White, S. Reucroft, A. Leike, H. Fenker, Kenneth Francis Read, I. Vetlitsky, R.C. Ball, Adrian Biland, G. Herten, G. Conforto, C. F. He, X.R. Shi, I. Clare, J. Schütte, L. Montanet, K.D. Shmakov, S. J. Fan, W. Friebel, G. Faber, A. Bujak, D.W. Schmitz, G.G.G. Massaro, Oliver Kornadt, Marcos Cerrada, M. Pohl, W. Wallraff, P. Göttlicher, E. Valente, Crisostomo Sciacca, Marco Pieri, C. Rippich, Ren-Yuan Zhu, Guofan Hu, Corinne Goy, Dimitri Bourilkov, E. Dénes, B. P. Roe, Robert Clare, A. Pevsner, A. Böhm, Luciano Barone, D. McNally, Thomas Ferguson, D.J. Schotanus, G. Coignet, A. Engler, Barry Blumenfeld, Jd Burger, R. Malik, M. Capell, R. Liu, B. N. Jin, J. A. Bakken, H. Nowak, Valery Schegelsky, Antonino Zichichi, D. Perret-Gallix, H. S. Fesefeldt, Q.Y. Yang, Thomas Hebbeker, Paul Lecoq, X. Leytens, M. Napolitano, Laszlo Gutay, J. G. Branson, S. Beingessner, G. Viertel, H. Rykaczewski, B. L. Betev, R. Leiste, S. S. Gau, P.V.K.S. Baba, S. Patricelli, F. Bruyant, V. Morgunov, Q. Ye, A. Gurtu, Lamberto Luminari, J. Mnich, Y. Karyotakis, S. Morganti, W.G. Ma, Z. W. Yin, S. N. Ganguli, V. Commichau, H. J. Schreiber, H. S. Chen, J. Schwenke, J. Fehlmann, X. Y. Cui, L. Zehnder, D. Kaplan, G. Sauvage, A. Degré, T. Foreman, P. Duinker, G. Morand, Jean Fay, S. Banerjee, Giovanni Paternoster, M. Dhina, D. Boutigny, M. Bocciolini, E. Nagy, M. Vivargent, B.Z. Yang, Christine Buisson, C. Spartiotis, J. Bao, Pierre Lecomte, G. Sartorelli, F. Crijns, Zhuoxiang Ren, A. Hasan, Harvey B Newman, R. Raghavan, M.L. Chen, Z. M. Wang, Konrad Deiters, R. Dolin, M. Gettner, J.H. Wang, J. M. You, Alberto Aloisio, A. Ricker, Y.P. Tong, P. K. Malhotra, H. A. Rizvi, N. Produit, K. Hilgers, Laurent Vuilleumier, A. Heavey, Qiang Li, L. Baksay, A. Malinin, A. Grimes, A. Kunin, H. van der Graaf, C. Maña, Marcella Diemoz, T. Angelov, E. Isiksal, P.G. Seiler, R. Morand, Z. L. Xue, M. Vollmar, B. Spiess, Petr Levchenko, F. Diez-Hedo, M. Sachwitz, S. Röhner, F. Wittgenstein, J. Behrens, P. J. Li, Th. Meinholz, G. Von Dardel, G. A. Yang, K. Lanius, V.G. Shevchenko, G. Gratta, W. Kittel, Howard A. Stone, T.S. Dai, D. Wright, C.Y. Chien, U. Herten, D. Antreasyan, Peter Denes, X. W. Tang, I. Sheer, P. Lebrun, F. Tonisch, P. A. Piroué, R. Wilhelm, Fridolin Dittus, T. Böhringer, A. A. Syed, S. Linnhofer, G. Mirabelli, G. Hu, Q. Fan, R. L. Sumner, Wolfgang Lange, G. H. Wang, V. Lalieu, L. Ludovici, E. Drago, F. Carbonara, Paolo Bagnaia, B.C. Stringfellow, S.Y. Zhang, U. Becker, J. Wenninger, K. Lübelsmeyer, Piero Spillantini, L. Niessen, Sau Lan Wu, Z.Y. Lin, L. Martinez, Marco Meschini, D. Kirkby, V. Pojidaev, F. L. Linde, A. Kuhn, M. Harris, M. Fukushima, Y.J. Pei, Wolfgang Lohmann, H. Vogt, B. Bertucci, D. Zhang, J. Ulbricht, Nicanor Colino, Nikita Smirnov, Zm Wang, F. J. Eppling, D. S. Yan, V. Koutsenko, D. H. Zhang, G. Finocchiaro, U. Uwer, A. Chen, J. Salicio, Carlos Willmott, J. Perrier, S. M. Ting, Speranza Falciano, J.P. Burq, E. Jagel, H. T. Li, Yanwen Liu, Egidio Longo, M. Merk, G. J. Bobbink, J. M. Le Goff, M. M. Ilyas, B. Wyso̵uch, F. Ferroni, Y. Zeng, Z.F. Gong, R. Fabbretti, J. A. Rubio, P. Schmitz, Alexei Klimentov, C. Camps, K. Freudenreich, R. Weill, W. J. Metzger, J. M. Salicio, Yu. Galaktionov, U. Micke, J. Alcaraz, Cheng Chen, R. Mount, B. Stöhr, C. Zaccardelli, Helmut Vogel, J. Berdugo, Y. H. Chang, George Alverson, B. Monteleoni, R. T. Van de Walle, Vineet Kumar, A. L. Anderson, Kajari Mazumdar, Ying Wu, J. F. Zhou, M. Schneegans, M. MacDermott, Mingshui Chen, M. A. Niaz, Xd Cai, P. Extermann, I. Leedom, H. Hofer, K. L. Tung, Z.Z. Xu, D. Ren, U. Vikas, A. Contin, Alexander Savin, M. Guanziroli, J. P. Martin, E. Shumilov, J. Zoll, J. H. Field, M. Schöntag, W. Böhlen, V. Shoutko, J.M. Qian, Philip Kaaret, M. Tonutti, An.A. Vorobyov, Igor Vorobiev, T. Matsuda, M. Hebert, O. Adriani, M. G. Alviggi, Zhiqing Zhang, F. C. Erné, Yu. Kamyshkov, C. G. Yang, K. S. Kumar, Panos A Razis, P. Blömeke, A. Gordeev, M. Micke, Z.Q. Yang, 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), and L3

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, Detector, 01 natural sciences, Nuclear physics, Excited state, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Limit (mathematics), 010306 general physics, Particle Physics - Experiment
Abstract

We searched for excited electrons and muons from Z 0 decay in the channels ee→eeγ, ee→eeγγ, ee→(e)eγ, ee→μμγ, ee→μμγγ. using the L3 detector at LEP. The lower mass limit for e ∗ is 45.0 GeV and for μ ∗ 45.3 GeV. The upper limits of ll ∗ Z 0 and ll ∗ γ couplings at 95% CL have been determined up to m l∗ close to the Z 0 mass.

Published
1990
Full Text
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26. A test of QCD based on 4-jet events from Z$^0$ decays

Author

B. Adeva, O. Adriani, M. Aguilar-Benitez, H. Akbari, J. Alcaraz, A. Aloisio, G. Alverson, M.G. Alviggi, Q. An, H. Anderhub, A.L. Anderson, V.P. Andreev, T. Angelov, L. Antonov, D. Antreasyan, P. Arce, A. Arefiev, T. Azemoon, T. Aziz, P.V.K.S. Baba, P. Bagnaia, J.A. Bakken, L. Baksay, R.C. Ball, S. Banerjee, J. Bao, L. Barone, A. Bay, U. Becker, J. Behrens, S. Beingessner, Gy.L. Bencze, J. Berdugo, P. Berges, B. Bertucci, B.L. Betev, A. Biland, R. Bizzarri, J.J. Blaising, P. Blömeke, B. Blumenfeld, G.J. Bobbink, M. Bocciolini, W. Böhlen, A. Böhm, T. Böhringer, B. Borgia, D. Bourilkov, M. Bourquin, D. Boutigny, J.G. Branson, I.C. Brock, F. Bruyant, C. Buisson, A. Bujak, J.D. Burger, J.P. Burg, J. Busenitz, X.D. Cai, C. Camps, 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, G. Chiefari, C.Y. Chien, C. Civinini, I. Clare, R. Clare, G. Coignet, N. Colino, V. Commichau, G. Conforto, A. Contin, F. Crijns, X.Y. Cui, T.S. Dai, R. D'Alessandro, R. de Asmundis, A. Degré, K. Deiters, E. Dénes, P. Denes, F. DeNotaristefani, M. Dhina, D. DiBitonto, M. Diemoz, F. Diez-Hedo, H.R. Dimitrov, C. Dionisi, F. Dittus, R. Dolin, E. Drago, T. Driever, D. Duchesneau, P. Duinker, I. Duran, H. El Mamouni, A. Engler, F.J. Eppling, F.C. Erné, P. Extermann, R. Fabbretti, G. Faber, S. Falciano, Q. Fan, S.J. Fan, M. Fabre, J. Fay, J. Fehlmann, H. Fenker, T. Ferguson, G. Fernandez, F. Ferroni, H. Fesefeldt, J. Field, G. Finocchiaro, P.H. Fisher, G. Forconi, T. Foreman, K. Freudenreich, W. Friebel, M. Fukushima, M. Gailloud, Yu. Galaktionov, E. Gallo, S.N. Ganguli, P. Garcia-Abia, S.S. Gau, S. Gentile, M. Gettner, M. Glaubman, S. Goldfarb, Z.F. Gong, E. Gonzalez, A. Gordeev, P. Göttlicher, D. Goujon, C. Goy, G. Gratta, A. Grimes, C. Grinnell, M. Gruenewald, M. Guanziroli, A. Gurtu, L.J. Gutay, H. Haan, S. Hancke, K. Hangarter, M. Harris, A. Hasan, C.F. He, A. Heavey, T. Hebbeker, M. Hebert, G. Herten, U. Herten, A. Hervé, K. Hilgers, H. Hofer, H. Hoorani, L.S. Hsu, G. Hu, G.Q. Hu, B. Ille, M.M. Ilyas, V. Innocente, E. Isiksal, E. Jagel, B.N. Jin, L.W. Jones, P. Kaaret, R.A. Khan, Yu. Kamyshkov, D. Kaplan, Y. Karyotakis, M. Kaur, S. Khokhar, V. Khoze, D. Kirkby, W. Kittel, A. Klimentov, A.C. König, O. Kornadt, V. Koutsenko, R.W. Kraemer, T. Kramer, V.R. Krastev, W. Krenz, J. Krizmanic, A. Kuhn, K.S. Kumar, V. Kumar, A. Kunin, S. Kwan, A. van Laak, V. Lalieu, G. Landi, K. Lanius, W. Lange, D. Lanske, S. Lanzano, P. Lebrun, P. Lecomte, P. Lecoq, P. Le Coultre, I. Leedom, J.M. Le Goff, A. Leike, L. Leistam, R. Leiste, J. Lettry, P.M. Levchenko, X. Leytens, C. Li, H.T. Li, J.F. Li, L. Li, P.J. Li, Q. Li, X.G. Li, J.Y. Liao, Z.Y. Lin, F.L. Linde, D. Linnhofer, R. Liu, Y. Liu, W. Lohmann, S. Lökös, E. Longo, Y.S. Lu, J.M. Lubbers, K. Lübelsmeyer, C. Luci, D. Luckey, L. Ludovici, X. Lue, L. Luminari, W.G. Ma, M. MacDermott, R. Magahiz, M. Maire, P.K. Malhotra, R. Malik, A. Malinin, C. Maña, D.N. Mao, Y.F. Mao, M. Maolinbay, P. Marchesini, A. Marchionni, J.P. Martin, L. Martinez, F. Marzano, G.G.G. Massaro, T. Matsuda, K. Mazumdar, P. McBride, T. McMahon, D. McNally, Th. Meinholz, M. Merk, L. Merola, M. Meschini, W.J. Metzger, Y. Mi, M. Micke, U. Micke, G.B. Mills, Y. Mir, G. Mirabelli, J. Mnich, M. Möller, L. Montanet, B. Monteleoni, G. Morand, R. Morand, S. Morganti, V. Morgunov, R. Mount, E. Nagy, M. Napolitano, H. Newman, M.A. Niaz, L. Niessen, W.D. Nowak, H. Nowak, S. Nowak, D. Pandoulas, G. Paternoster, S. Patricelli, Y.J. Pei, D. Perret-Gallix, J. Perrier, A. Pevsner, M. Pieri, P.A. Piroué, V. Plyaskin, M. Pohl, V. Pojidaev, N. Produit, J.M. Qian, K.N. Qureshi, R. Raghavan, G. Rahal-Callot, P. Razis, K. Read, D. Ren, Z. Ren, S. Reucroft, A. Ricker, T. Riemann, C. Rippich, H.A. Rizvi, B.P. Roe, M. Röhner, S. Röhner, Th. Rombach, L. Romero, J. Rose, S. Rosier-Lees, R. Rosmalen, Ph. Rosselet, J.A. Rubio, W. Ruckstuhl, H. Rykaczewski, M. Sachwitz, J. Salicio, J.M. Salicio, G. Sartorelli, G. Sauvage, A. Savin, V. Schegelsky, D. Schmitz, P. Schmitz, M. Schneegans, M. Schöntag, H. Schopper, D.J. Schotanus, H.J. Schreiber, R. Schulte, S. Schulte, K. Schultze, J. Schütte, J. Schwenke, G. Schwering, C. Sciacca, R. Sehgal, P.G. Seiler, J.C. Sens, I. Sheer, V. Shevchenko, S. Shevchenko, X.R. Shi, K. Shmakov, V. Shoutko, E. Shumilov, N. Smirnov, A. Sopczak, C. Souyri, C. Spartiotis, T. Spickermann, B. Spiess, P. Spillantini, R. Starosta, M. Steuer, D.P. Stickland, B. Stöhr, H. Stone, K. Strauch, B.C. Stringfellow, K. Sudhakar, G. Sultanov, R.L. Sumner, H. Suter, R.B. Sutton, J.D. Swain, A.A. Syed, X.W. Tang, E. Tarkovsky, J.M. Thenard, E. Thomas, C. Timmermans, Samuel C.C. Ting, S.M. Ting, Y.P. Tong, F. Tonisch, M. Tonutti, S.C. Tonwar, J. Tòth, G. Trowitzsch, K.L. Tung, J. Ulbricht, L. Urbán, U. Uwer, E. Valente, R.T. Van de Walle, H. van der Graaf, I. Vetlitsky, G. Viertel, P. Vikas, U. Vikas, M. Vivargent, H. Vogel, H. Vogt, M. Vollmar, G. Von Dardel, I. Vorobiev, A.A. Vorobyov, An.A. Vorobyov, L. Vuilleumier, M. Wadhwa, W. Walk, W. Wallraff, C.R. Wang, G.H. Wang, J.H. Wang, Q.F. Wang, X.L. Wang, Y.F. Wang, Z. Wang, Z.M. Wang, J. Weber, R. Weill, T.J. Wenaus, 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. Wysłouch, 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. Zabounidis, C. Zaccardelli, 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, J. Zoll, 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), and L3

Subjects
Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, 01 natural sciences, Particle Physics - Experiment
Published
1990
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27. A precision measurement of the number of neutrino species

Author

L.S. Hsu, Konrad Deiters, Yu. Galaktionov, Alberto Aloisio, A. Grimes, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, M. Fabre, Th. Meinholz, J. Alcaraz, Helmut Vogel, Federico Carminati, Jozsef Toth, A. Heavey, A. A. Syed, J. Lettry, Claudio Luci, Wolfgang Lange, B.C. Stringfellow, Qiang Li, Y. Karyotakis, R.C. Ball, Adrian Biland, Georgi Sultanov, F. Crijns, X. W. Tang, I. Sheer, P. A. Piroué, Elisabetta Gallo, M. J. Glaubman, M. Möller, Lamberto Luminari, G. Finocchiaro, Marcel Merk, H. F. Chen, R. A. Khan, Kajari Mazumdar, J. Perrier, R. Malik, K.D. Shmakov, G. Chiefari, L. Urbàn, S. Shevchenko, Chenliang Wang, S. Khokhar, T.R. McMahon, M. Wadhwa, D. J. Schotanus, J. M. You, N. Produit, G. A. Yang, Jean Fay, M. Sachwitz, M. Dhina, D. Boutigny, H. El Mamouni, Cheng Chen, Ren-Yuan Zhu, Tariq Aziz, B. Stöhr, C. Zaccardelli, S. Reucroft, Luciano Barone, J. Fehlmann, Z. Y. Lin, V. P. Andreev, A. Engler, A. Leike, C. Zabounidis, S. C. Yeh, H. Fenker, S. Patricelli, Xd Cai, Pierre Lecomte, G.J. Bobbink, J.Y. Liao, E. Thomas, J.H. Wang, D.N. Mao, C. Souyri, S.J. Fan, M. Capell, C. Dionisi, Yu. Kamyshkov, F.C. Erné, Q.Y. Yang, B. L. Betev, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, A. Gurtu, A. Kunin, H. van der Graaf, Q. Ye, P. Arce, D. Goujon, G. Sartorelli, M.L. Chen, G. Landi, U. Herten, R. Dolin, D. Perret-Gallix, H. S. Fesefeldt, F. Ferroni, V. Commichau, H. J. Schreiber, Pablo Garcia-Abia, Charles Timmermans, Raffaello D'Alessandro, C. Grinnell, Mw Gruenewald, Crisostomo Sciacca, D. Pandoulas, Marco Pieri, D. Antreasyan, G. M. Chen, Y. Zeng, M. Bocciolini, C. Rippich, Vincenzo Innocente, Alain Hervé, W. J. Metzger, P. Vikas, G. Morand, Qi An, M. Fukushima, Leonardo Merola, W. Walk, M. Gettner, S. Beingessner, T. Spickermann, S. Kwan, A. Hasan, G.G.G. Massaro, M. Gailloud, S. Lökös, C. G. Yang, T. Azemoon, X. Leytens, B. N. Jin, K.S. Yang, H. Nowak, F. Carbonara, R.J. Wu, A. Sopczak, J. Behrens, L. Martinez, J. Mnich, Bernard Ille, A. Bay, J.C. Sens, Th. Rombach, R. L. Summer, R. Raghavan, R. Magahiz, T. Kramer, C. Maña, Marcella Diemoz, L. Baksay, F. L. Linde, P. Lebrun, Fridolin Dittus, J. J. Blaising, K. Sudhakar, J. M. Le Goff, A. C. König, Y.P. Tong, L. Zehnder, Laurent Vuilleumier, P. Schmitz, E. Isiksal, K. S. Kumar, Simonetta Gentile, J. D. Swain, H. Anderhub, Marcos Cerrada, Z.F. Gong, P. Duinker, S. Banerjee, P. McBride, Alexei Klimentov, Carlo Civinini, M. Maolinbay, G. Gratta, C. Camps, H. Haan, Dimitri Bourilkov, Boleslaw Wyslouch, Luciano Romero, Qian Wang, S.Y. Zhang, C.Y. Chien, J. A. Rubio, K. Freudenreich, Y. Mi, G. H. Wang, J. Bao, F. Cesaroni, Kenneth Francis Read, I. Vetlitsky, U. Uwer, G. Conforto, J. Wenninger, X.G. Li, M. Aguilar-Benitez, I. Duran, J.M. Lubbers, A. Böhm, J.M. Qian, Philip Kaaret, G. Von Dardel, A. Chen, C. F. He, C-Q. Li, V. Pojidaev, G. Coignet, J. Salicio, S. C. Tonwar, Nikita Smirnov, L. J. Gutay, A. Pevsner, U. Becker, Zm Wang, R. Liu, Herwig Schopper, M. White, Barry Blumenfeld, R. de Asmundis, T. Böhringer, E. Valente, Thomas Ferguson, G. Sauvage, X. Lue, U. K. Chaturvedi, J. Schütte, S. S. Gau, P.V.K.S. Baba, Zhen Zhang, Speranza Falciano, F. J. Eppling, L. W. Jones, D. S. Yan, Y. S. Lu, R. Bizzarri, S. Hancke, K. N. Qureshi, Harvey B Newman, E. Dénes, R. Sehgal, An.A. Vorobyov, T. Matsuda, G. Mirabelli, Marco Meschini, Ian Brock, M. Chermarin, D. McNally, D. Kirkby, K. Hilgers, S. M. Ting, Jérôme Rose, S. X. Wu, F. DeNotaristefani, Egidio Longo, R. Wilhelm, Yanwen Liu, Y. H. Chang, W.-D. Nowak, George Alverson, W. Ruckstuhl, J. H. Field, G. Trowitzsch, D. P. Stickland, F. Bruyant, L. Leistam, O. Adriani, M. G. Alviggi, G. Viertel, G. Schwering, Vineet Kumar, T. Foreman, K. Lübelsmeyer, Piero Spillantini, Hafeez R. Hoorani, L. Montanet, Y. Mir, C. H. Ye, Y.J. Pei, M. M. Ilyas, G. Fernandez, D.W. Schmitz, Wolfgang Lohmann, H. Vogt, D. DiBitonto, Ph. Rosselet, B. Bertucci, D. Zhang, R. Rosmalen, S. Morganti, T. Angelov, M. Steuer, R. Fabbretti, J. Ulbricht, Nicanor Colino, X. L. Wang, E. Nagy, M. Vivargent, Christine Buisson, G. Forconi, J. Schwenke, J. Weber, W. Wallraff, M. MacDermott, Robert Clare, Guofan Hu, Thomas Hebbeker, X. Y. Cui, K. Lanius, M. A. Niaz, G. Hu, V. Shevchenko, Z. M. Wang, Paul Lecoq, R. W. Kraemer, M. Bourquin, M. Napolitano, P. Berges, P. Extermann, S. Rosier-Lees, T. Riemann, Z. Ren, P. Marchesini, I. Leedom, B. Z. Yang, J. G. Branson, K. Strauch, P.G. Seiler, G.B. Mills, A. Arefiev, H. Hofer, K. L. Tung, B. Monteleoni, Petr Levchenko, S. Röhner, F. Diez-Hedo, Peter Denes, Z. W. Yin, S. N. Ganguli, M. Maire, Ming Zeng, H. S. Chen, Aa Vorobyov, L. Li, R. Weill, P. Le Coultre, A. Degré, Giovanni Paternoster, Paolo Bagnaia, W. Kittel, D. Duchesneau, Carlos Willmott, K. Hangarter, F. Wittgenstein, L. Ludovici, E. Drago, M. Röhner, Alexander Malinin, B. Spiess, L. Niessen, Sau Lan Wu, T. Driever, H. T. Li, P.J. Li, V. Lalieu, F. Marzano, Y.F. Mao, W. Krenz, A. L. Anderson, V. Koutsenko, J.M. Thenard, A.M. Cartacci, H.R. Dimitrov, M. Harris, J.P. Burq, T.J. Wenaus, E. Jagel, Manjit Kaur, Ying Wu, J. F. Zhou, Samuel C.C. Ting, J.F. Li, R. T. Van de Walle, J. D. Burger, Steven Goldfarb, R. Starosta, H. Akbari, D. Luckey, Gy L. Bencze, B. P. Roe, G. Rahal-Callot, Reinhard W. Schulte, R.B. Sutton, D.H. Zhang, M. Schneegans, A. Bujak, Oliver Kornadt, M. Pohl, H. Suter, K. Schultze, E. Tarkovsky, J. M. Salicio, Y.F. Wang, D. Lanske, M. Vollmar, U. Micke, D. Linnhofer, R. Mount, S. Lanzano, D. Wright, Valentin V. Khoze, J. Berdugo, L. Antonov, J. Krizmanic, A. Marchionni, V.R. Krastev, E. Gonzalez, Bernardo Adeva, M. Guanziroli, J. P. Martin, E. Shumilov, J. Zoll, M. Schöntag, W. Böhlen, V. Shoutko, M. Tonutti, Mingshui Chen, V. Morgunov, D. Ren, U. Vikas, A. Contin, Alexander Savin, Igor Vorobiev, M. Hebert, Panos A Razis, P. Blömeke, A. Gordeev, M. Micke, Z.Q. Yang, Sebastian Nowak, B. Borgia, A. van Laak, X.R. Shi, I. Clare, J. Busenitz, P. Göttlicher, R. Leiste, D. Kaplan, C. Spartiotis, R. Morand, Z. L. Xue, Howard A. Stone, T.S. Dai, F. Tonisch, Q. Fan, G. Herten, W. Friebel, G. Faber, Corinne Goy, A. Kuhn, J. A. Bakken, V. Plyaskin, Wen-Gan Ma, 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, problem formulation, Electron–positron annihilation, Scalar (mathematics), Hadron, problem modeling, 01 natural sciences, problem understanding, Standard Model, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], information retrieval, Nuclear Experiment, 010306 general physics, Physics, Range (particle radiation), maxims of conversation, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, problem expression, High Energy Physics::Experiment, competitive intelligence, Center of mass, Neutrino, pragmatics, Particle Physics - Experiment
Abstract

If simplified, every information retrieval problem can be solved when the information need implied by its expression has been identified. We are interested in the criteria used in realising a good information retrieval problem expression. We have listed these criteria through some principles and maxims which first characterized the communication between two persons are applied. We choose to use the gricean maxims because they are the most favoured for this type of situation. Secondly, we have tried to identify some others principles that can be used to realise a good information retrieval problem expression. The principles by Grice can not resolve all forms of error associated with this particular form of communication. In our work, we defined three other principles namely: adhesion principle, reformulation principle, memorization principle. We give some examples of situations where the principles we have formulated are not applicable and the consequences. We present the possible applications of our new model: MIRABEL, which can help in the description of information retrieval problem from. It also compels its user to use essential good expression principle implicitly.

Published
1990
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28. Search for excited neutrinos from Z$^0$ decays

Author

Dimitri Bourilkov, E. Nagy, E. Valente, M. Guanziroli, Tariq Aziz, R. Raghavan, R. Weill, D. McNally, Y.P. Tong, M. Schneegans, D. M. Lee, Laurent Vuilleumier, F. Cesaroni, J. P. Martin, X. Leytens, G. Viertel, G. Sauvage, J. Y. Liao, E. Isiksal, S. Morganti, W. Kittel, E. Shumilov, Ren-Yuan Zhu, Luciano Barone, J. Schütte, Crisostomo Sciacca, François Chollet, Marco Pieri, G. H. Wang, J. Schwenke, G. Herten, W. Friebel, G. Faber, M. Schöntag, X. Y. Cui, M. Möller, V. Shoutko, A. Kuhn, Harvey B Newman, K. Hilgers, C. Rippich, J. Wenninger, J. A. Bakken, U. Micke, F. Bruyant, M. J. Glaubman, V. Pojidaev, D. Linnhofer, H. F. Chen, V. Plyaskin, Nikita Smirnov, R. Mount, M. Tonutti, Zm Wang, T. Angelov, M. Fabre, S. Beingessner, D. Pandoulas, T. McMahon, Wen-Gan Ma, H. El Mamouni, B. P. Roe, G. Chiefari, K. Lanius, Qiang Li, J. Berdugo, G. Hu, F. C. Erné, Q.Y. Yang, A. Gurtu, Igor Vorobiev, Konrad Deiters, Georgi Sultanov, V. Commichau, H. J. Schreiber, J. Mnich, M.L. Chen, Sc Yeh, S. Shevchenko, Helmut Vogel, Alberto Aloisio, M. Sachwitz, L. Li, L. Urbàn, R. A. Khan, Carlos Willmott, R.C. Ball, Adrian Biland, Panos A Razis, L. J. Gutay, G. Landi, D. Duchesneau, T. Driever, P. Arce, T. Foreman, G. Fernandez, Speranza Falciano, T. Spickermann, A. Bujak, Oliver Kornadt, P. Blömeke, M. Bocciolini, P. Duinker, Alexander Malinin, M. Merk, U. Becker, Raffaello D'Alessandro, C. Grinnell, K.D. Shmakov, S. J. Fan, A. A. Syed, D. Goujon, M. Pohl, A. Gordeev, M. Micke, B. L. Betev, Th. Meinholz, P. Vikas, Bernard Ille, A. C. König, Kajari Mazumdar, S. Khokhar, Marcella Diemoz, G. Von Dardel, D.N. Mao, Yu. Kamyshkov, A. Hasan, R. Rosmalen, X. W. Tang, Leonardo Merola, Y. D. Xu, J. Bao, V. P. Andreev, M. Chemarin, J.F. Li, H. T. Li, Qi An, S. Lökös, K.S. Yang, Th. Rombach, Z.Q. Yang, B. Spiess, G. M. Chen, K. Sudhakar, F. J. Eppling, L. W. Jones, D. S. Yan, S. M. Ting, U. Herten, F. Plasil, T. Azemoon, H. Suter, Y.F. Wang, V. Lalieu, A. Degré, E. Dénes, R. Sehgal, Simonetta Gentile, Mingshui Chen, Mw Gruenewald, G. B. Mills, G. Morand, B.C. Stringfellow, M. Yzerman, V. Koutsenko, P. A. Piroué, T. Böhringer, P. Marchesini, Alexei Klimentov, C. Camps, Vincenzo Innocente, C. G. Yang, Xd Cai, Valentin V. Khoze, R. Dolin, I. Sheer, Marcos Cerrada, R. Magahiz, Ming Zeng, J. D. Swain, J.P. Burq, Kenneth Francis Read, S. Rosier-Lees, D. H. Zhang, E. Jagel, A. Engler, L. Antonov, G. Conforto, V. Morgunov, G. Finocchiaro, M. Bourquin, K. Strauch, P. Le Coultre, K. S. Kumar, L.S. Hsu, M. Röhner, Yu. Galaktionov, M. Fukushima, C. Maña, J. Perrier, U. Roeser, D. Hauschildt, B. N. Jin, K. Freudenreich, D. Ren, W. Wallraff, Guofan Hu, R. L. Summer, J. Salicio, J. Alcaraz, L. Baksay, Marco Meschini, K. Hangarter, R. Malik, Jozsef Toth, U. Vikas, J.M. Qian, M. Capell, J. Krizmanic, D. Perret-Gallix, H. S. Fesefeldt, H. O. Cohn, J. Lettry, Claudio Luci, A. Contin, K. N. Qureshi, Alexander Savin, Yanwen Liu, L. Z. Sun, Y.F. Mao, A. Marchionni, R. Starosta, Elisabetta Gallo, V.R. Krastev, R. Liu, G. Gratta, D. Luckey, Gy L. Bencze, A. Böhm, Cheng Chen, B. Stöhr, J. M. Le Goff, E. Gonzalez, Reinhard W. Schulte, D. Kirkby, H. R. Gustafson, S. S. Gau, P.V.K.S. Baba, Z. W. Yin, C.Y. Chien, T.J. Wenaus, C. Zaccardelli, W. W. Kinnison, Chenliang Wang, G. S. Sanders, Z.F. Gong, S. N. Ganguli, Zhuoxiang Ren, G. Coignet, J. A. Rubio, M. Wadhwa, R.J. Wu, A. Sopczak, H. L. Zhuang, S. Lanzano, Bernardo Adeva, Giovanni Paternoster, Wolfgang Stoeffl, I. Scott, Federico Carminati, S. Reucroft, Manjit Kaur, C. Timmermans, G. Schwering, J. M. You, H. Anderhub, P. McBride, An.A. Vorobyov, T. Matsuda, N. Produit, H. Fenker, A.M. Cartacci, C-Q. Li, J.M. Lubbers, L. Zehnder, H.R. Dimitrov, H. Akbari, D. Antreasyan, Zhen Zhang, G. A. Yang, O. Adriani, Lucas Taylor, R. Bizzarri, S. Hancke, Ian Brock, F. DeNotaristefani, J.C. Sens, J. D. Burger, G. Mirabelli, G. Rahal-Callot, W. J. Metzger, L. Leistam, X. L. Wang, S. Patricelli, M.C. Chen, J.B. Ye, O. Rind, K. Schultze, E. Tarkovsky, S. Banerjee, T. Kramer, P. Berges, D. Lanske, Hafeez R. Hoorani, K. Lübelsmeyer, Piero Spillantini, M. Maire, J. J. Blaising, Q. Ye, S. Schulte, W. Ruckstuhl, D. P. Stickland, Y. Mir, C. H. Ye, Y.J. Pei, Lamberto Luminari, M. Vivargent, Christine Buisson, R. de Asmundis, W. Böhlen, H. Haan, Wolfgang Lohmann, H. Vogt, Mariagrazia Alviggi, B. Bertucci, J. Fehlmann, Z. M. Wang, I. Vetlitsky, Pierre Lecomte, G. Sartorelli, Nicanor Colino, Y. H. Chang, George Alverson, C. Dionisi, R. T. Van de Walle, Vineet Kumar, V. Shevchenko, Pablo Garcia-Abia, Alain Hervé, B. Borgia, A. Bay, P.G. Seiler, F. Ferroni, Y. Zeng, F. Diez-Hedo, J. Ulbricht, A. van Laak, Peter Denes, Paolo Bagnaia, Carlo Civinini, Y. Mi, M. Maolinbay, S. C. Tonwar, X.R. Shi, I. Clare, Frank Filthaut, Thomas Ferguson, X.G. Li, J. Busenitz, P. Göttlicher, D.J. Schotanus, M. Aguilar-Benitez, I. Duran, Herwig Schopper, R. Leiste, M. White, Petr Levchenko, S. Röhner, C. Spartiotis, F. Wittgenstein, M. Gailloud, R. Morand, Z. L. Xue, L. Ludovici, E. Drago, L. Niessen, Sau Lan Wu, Howard A. Stone, T.S. Dai, F. Tonisch, Q. Fan, D. Zhang, M. Harris, J.G. Branson, O. Fackler, E. Thomas, J.H. Wang, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, A. Kunin, H. van der Graaf, M. Hebert, R. Wilhelm, F. Carbonara, L. Martinez, F. L. Linde, Luciano Romero, Bolek Wyslouch, Qian Wang, J. Behrens, P. J. Li, P. Lebrun, Fridolin Dittus, BT Bouwens, U. Uwer, A. Chen, X. Lue, U. K. Chaturvedi, Y. S. Lu, Jérôme Rose, J. H. Field, G. Trowitzsch, C. F. He, A. Pevsner, Barry Blumenfeld, Valery Schegelsky, Antonino Zichichi, Ph Fisher, H. Rykaczewski, Y. Karyotakis, A. Arefiev, Aa Vorobyov, Jean Fay, M. Dhina, D. Boutigny, F. Crijns, Z. Y. Lin, F. Marzano, W. Krenz, Samuel C.C. Ting, Steven Goldfarb, R.B. Sutton, G. Passaleva, M. MacDermott, M. A. Niaz, S. X. Wu, D. DiBitonto, M. Steuer, G. Forconi, J. Weber, P. Extermann, I. Leedom, B. Z. Yang, H. Hofer, K. L. Tung, Egidio Longo, G. J. Bobbink, M. M. Ilyas, R. Fabbretti, M. Lenti, A. L. Anderson, Ying Wu, J. F. Zhou, M. Vollmar, D. Wright, D.W. Schmitz, G.G.G. Massaro, Robert Clare, Ph. Rosselet, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, H. S. Chen, B. Monteleoni, 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
Physics, Nuclear and High Energy Physics, Antiparticle, Particle physics, Annihilation, 010308 nuclear & particles physics, Elementary particle, 01 natural sciences, 7. Clean energy, Massless particle, Particle decay, Excited state, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutrino, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, Lepton
Abstract

We have searched for the excited electron neutrino produced from Z 0 decays in the channel e + e − →νν ∗ using the L3 detector at LEP. The decays ν ∗ →eW and ν ∗ →νγ have been investigated. We have determined an upper limit on the Zνν ∗ coupling as a function of m ν ∗ up to the Z 0 mass.

Published
1990
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29. A determination of electroweak parameters from $Z^{0}$ decays into charged leptons

Author

Samuel C.C. Ting, A. A. Syed, Luciano Romero, Bolek Wyslouch, Steven Goldfarb, G. Passaleva, B.C. Stringfellow, C. F. He, H. van der Graaf, F. Crijns, D. DiBitonto, A. Pevsner, F. Ferroni, T. Kramer, G. Landi, A. Engler, M. Gruenewald, G. Finocchiaro, Barry Blumenfeld, J. J. Blaising, L. Antonov, M. MacDermott, Zhen Zhang, H. Anderhub, Y. Zeng, M. Merk, M. A. Niaz, R. de Asmundis, M. J. Glaubman, G. Mirabelli, P. Vikas, J. Perrier, H. El Mamouni, H. Haan, Mariagrazia Alviggi, C. J.W.P. Timmermans, X. Lue, R. Rosmalen, P. Extermann, K. Lübelsmeyer, Piero Spillantini, Valery Schegelsky, I. Leedom, B. Z. Yang, U. K. Chaturvedi, C. Rippich, Antonino Zichichi, P. Arce, D. Goujon, Vincenzo Innocente, R. Liu, R. Leiste, Ph Fisher, Y. S. Lu, J. Krizmanic, A. Marchionni, V.R. Krastev, H. Hofer, K. L. Tung, C. Buisson, Raffaello D'Alessandro, Igor Vorobiev, H. Rykaczewski, Qiang Li, M. Sachwitz, S. X. Wu, Y. Karyotakis, U. Roeser, R. Weill, M. Möller, M. Hebert, J. Alcaraz, Panos A Razis, E. Gonzalez, I. Vetlitsky, K. Sudhakar, C. Grinnell, Jérôme Rose, S. Lanzano, Bernardo Adeva, U. Herten, P.V.K.S. Baba, Ph. Rosselet, Y. Mi, P. Blömeke, A.M. Cartacci, J. H. Field, G. Trowitzsch, Leonardo Merola, Z.F. Gong, Jean Fay, M. Dhina, R. W. Kraemer, C-Q. Li, H. L. Zhuang, M. Steuer, R.C. Ball, G. Forconi, M. Lenti, D. Pandoulas, T. McMahon, Yanwen Liu, A. Gordeev, M. Micke, D. Boutigny, R.B. Sutton, J. Weber, T. Spickermann, A. L. Anderson, Z. Y. Lin, R. Bizzarri, S. Hancke, Helmut Vogel, J. M. Salicio, Adrian Biland, U. Micke, Ying Wu, J. F. Zhou, Ian Brock, Ren-Yuan Zhu, Luciano Barone, L. Leistam, O.F. Wang, D. Linnhofer, E. Valente, T. Azemoon, C. Spartiotis, L. Urbàn, G. Chiefari, S. Shevchenko, H.R. Dimitrov, Z.Q. Yang, Bernard Ille, R. Magahiz, E. Thomas, J.H. Wang, Zhongyukun Xu, P. K. Malhotra, H. A. Rizvi, A. Kunin, K.D. Shmakov, S. S. Gau, S. C. Tonwar, L.S. Hsu, R. Mount, Q. Fan, Q.Y. Yang, J. D. Swain, P. McBride, G.B. Mills, A. Arefiev, Qi An, P. Berges, Mingshui Chen, Marcos Cerrada, R. Malik, Kajari Mazumdar, Egidio Longo, J.C. Sens, S. Khokhar, Aa Vorobyov, C. Maña, Thomas Ferguson, A. Gurtu, Jozsef Toth, V. Commichau, H. J. Schreiber, J. Lettry, Claudio Luci, M. Maire, L. Li, S. Lökös, D. Duchesneau, J. Berdugo, R. Morand, K.S. Yang, Z. L. Xue, Th. Rombach, M. Capell, B. N. Jin, A. Böhm, J. D. Burger, D.N. Mao, V. Morgunov, G. Rahal-Callot, Dimitri Bourilkov, D. McNally, Alexander Malinin, R. Wilhelm, W. J. Metzger, G. Paternoster, Simonetta Gentile, B. Monteleoni, Yu. Galaktionov, D. Ren, L. J. Gutay, M. M. Ilyas, R. Fabbretti, Yu. Kamyshkov, H. S. Chen, F. Carbonara, Elisabetta Gallo, M. Bocciolini, Howard A. Stone, T.S. Dai, A. Hasan, F. Tonisch, Chenliang Wang, Kenneth Francis Read, Y. D. Xu, Zhuoxiang Ren, D. Perret-Gallix, H. S. Fesefeldt, G. Conforto, G. Coignet, M. Wadhwa, D. J. Schotanus, Lamberto Luminari, J. M. You, W. Kittel, J.F. Li, Xd Cai, F. Cesaroni, J. Y. Liao, U. Becker, M. Gailloud, G. Schwering, F. Marzano, W. Krenz, U. Vikas, E. Nagy, A. Contin, N. Produit, R. Raghavan, G. Sauvage, D.W. Schmitz, G.G.G. Massaro, Robert Clare, A. C. König, Y.P. Tong, E. Isiksal, Alexander Savin, K. Schultze, L. Martinez, F. L. Linde, E. Tarkovsky, S. Reucroft, H.S. Chen, P. Schmitz, Alexei Klimentov, C. Camps, V. Shevchenko, J. Fehlmann, H. Fenker, B. Borgia, M.C. Chen, T. Angelov, X. Leytens, G. Viertel, H. Suter, Y.F. Wang, Valentin V. Khoze, J. Behrens, P. J. Li, J. Schütte, M. Guanziroli, G. A. Yang, M. Schneegans, Harvey B Newman, D. Lanske, Cheng Chen, J. P. Martin, B. Stöhr, C. G. Yang, Pierre Lecomte, K. Hilgers, A. van Laak, K. Lanius, G. Hu, P. Lebrun, L. Zehnder, Fridolin Dittus, Thomas Hebbeker, C. Zaccardelli, Paul Lecoq, E. Shumilov, A. Bujak, M. Schöntag, K. Freudenreich, P.G. Seiler, F. Diez-Hedo, W. Böhlen, V. Shoutko, S.J. Fan, K. S. Kumar, J.P. Burq, Carlos Willmott, Peter Denes, S. Schulte, J.B. Ye, Speranza Falciano, J.M. Qian, Paolo Bagnaia, F. J. Eppling, L. W. Jones, M. Napolitano, Guo-Ming Chen, S. Banerjee, S. Morganti, U. Uwer, M. Tonutti, J. Schwenke, H. T. Li, Marco Meschini, J. Wenninger, I. Clare, D. Kirkby, X.R. Shi, P. Göttlicher, J. Salicio, X. Y. Cui, H. R. Gustafson, W. Ruckstuhl, D. S. Yan, D. P. Stickland, L. Vuileumier, S. M. Ting, S. Beingessner, An.A. Vorobyov, T. Matsuda, Y. Mir, C. H. Ye, Sc Yeh, G. Fernandez, Tariq Aziz, O. Adriani, Y.J. Pei, Lucas Taylor, Wolfgang Lohmann, H. Vogt, B. Bertucci, D. Zhang, J. Ulbricht, J. Mnich, M. Bourquin, W. Friebel, Nicanor Colino, K. Strauch, T. Foreman, P. Duinker, D. Antreasyan, J. Bao, Zheng Wang, Federico Carminati, F. de Notaristefani, Andre Sopczak, K. N. Qureshi, Y. H. Chang, George Alverson, M.L. Chen, Crisostomo Sciacca, Vineet Kumar, M. Chemarin, Marco Pieri, Marcella Diemoz, S. Patricelli, Q. Ye, Wen-Gan Ma, G. Von Dardel, A. Degré, Konrad Deiters, M. Vollmar, T. Böhringer, P. Marchesini, Alberto Aloisio, Ming Zeng, M. Röhner, D. Wright, R. L. Summer, Th. Meinholz, L. Baksay, G. Gratta, X. W. Tang, I. Sheer, P. A. Piroué, Y.F. Mao, C.Y. Chien, R. T. Van de Walle, I. Scott, T.J. Wenaus, Manjit Kaur, H. Akbari, Daqiang Zhang, C. Dionisi, A. Chen, Pablo Garcia-Abia, Alain Hervé, A. Bay, Carlo Civinini, M. Maolinbay, X.G. Li, M. Aguilar-Benitez, I. Duran, Herwig Schopper, M. White, Petr Levchenko, S. Röhner, F. Wittgenstein, L. Ludovici, E. Drago, L. Niessen, Sau Lan Wu, M. Harris, E. Dénes, R. Sehgal, L. Z. Sun, X. L. Wang, M. Vivargent, Z. M. Wang, B. Spiess, V. Lalieu, F. Bruyant, R. Dolin, M. Fukushima, J. M. Le Goff, J. A. Rubio, V. Koutsenko, E. Jagel, G. Herten, W. Wallraff, Guofan Hu, G. Faber, J. G. Branson, A. Kuhn, J. A. Bakken, Z. W. Yin, S. N. Ganguli, V. Plyaskin, V. Pojidaev, Nikita Smirnov, B. P. Roe, B. L. Betev, G. Sartorelli, Oliver Kornadt, M. Pohl, G. Morand, M. Fabre, Georgi Sultanov, R. A. Khan, T. Driever, J. Busenitz, V. P. Andreev, G.J. Bobbink, R.J. Wu, J.M. Lubbers, O. Rind, Hafeez R. Hoorani, S. Rosier-Lees, P. Le Coultre, G. H. Wang, K. Hangarter, R. Starosta, D. Luckey, Gy L. Bencze, Reinhard W. Schulte, F. C. Erné, 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, and IHEF (IoP, FNWI)

Subjects
Physics, Coupling constant, Nuclear and High Energy Physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, Electroweak interaction, Weinberg angle, Electron, 01 natural sciences, 7. Clean energy, Asymmetry, 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), Particle Physics - Experiment, Lepton, media_common
Abstract

We have measured the partial widths for the three reactions e + e − → Z 0 → e + e − , μ + μ − , τ + τ − . The results are Γ ee = 84.3±1.3 MeV, √ Γ ee Γ μμ =83.9±1.4 MeV, and √ Γ ee Γ ττ =83.9±1.4 MeV, where the errors are statistical. The systematic errors are estimated to be 1.0 MeV, 0.9 MeV, and 1.4 MeV, respectively. We perform a simultaneous fit to the cross sections for the e + e − →e + e − , μ + μ − , and τ + τ − data, the differential cross section as a function of polar angle for the electron data, and the forward- backward asymmetry for the muon data. We obtain the leptonic partial with Γ ll =84.0±0.9 (stat.) MeV. The systematic error is estimated to be 0.8 MeV. Also, we obtain the axial-vector and vector weak coupling constants of charged leptons, g A =−0.500±0.003 and g ν =−0.064 −0.013 +0.017 .

Published
1990

30. Search for the neutral Higgs boson from $Z^{0}$ decay

Author

Yu. Galaktionov, Dimitri Bourilkov, J. Alcaraz, T. Kramer, Marco Meschini, J. J. Blaising, R. Rosmalen, B. N. Jin, M. MacDermott, G. Sauvage, R. L. Summer, H. Haan, Mariagrazia Alviggi, M. A. Niaz, L. Baksay, A. Arefiev, L. Zehnder, I. Vetlitsky, Cheng Chen, B. Stöhr, T. Foreman, Aa Vorobyov, S. Banerjee, Harvey B Newman, V.G. Shevchenko, P. Extermann, K. Hilgers, B. Borgia, A. van Laak, I. Leedom, C. Zaccardelli, J. Martin, Boleslaw Wyslouch, C.Y. Chien, H. Hofer, K. L. Tung, Y.J. Pei, B. Bertucci, D. Zhang, J. Ulbricht, X.R. Shi, I. Clare, J. Busenitz, L. Urbàn, D.N. Mao, C. Souyri, P. Göttlicher, Lamberto Luminari, M. Gailloud, J. M. Salicio, U. Micke, J.C. Sens, R. Raghavan, M. Möller, Nicanor Colino, J. Fehlmann, W. Lange, R. Weill, D. Linnhofer, Federico Carminati, Tariq Aziz, Y.P. Tong, Laurent Vuilleumier, E. Isiksal, H. F. Chen, Z.P. Zhang, Pierre Lecomte, G. Sartorelli, M. J. Glaubman, S. Rosier-Lees, A. Heavey, P. Le Coultre, Qiang Li, R. Dolin, K. N. Qureshi, P. McBride, Petr Levchenko, S. Röhner, R.C. Ball, Adrian Biland, J. Berdugo, G. H. Wang, Charles Timmermans, K. Hangarter, A. Malinin, Raffaello D'Alessandro, X.L. Wang, C. Grinnell, A. L. Anderson, S. Beingessner, P.G. Seiler, Ying Wu, J. F. Zhou, Crisostomo Sciacca, Yu. Kamyshkov, Marco Pieri, Mw Gruenewald, K.D. Shmakov, S. J. Fan, C.R. Wang, C. Rippich, J. Wenninger, V. Pojidaev, S. Patricelli, R. Starosta, D. Antreasyan, C. Zabounidis, U. Herten, D. Kaplan, Leonardo Merola, D. Luckey, Gy L. Bencze, Reinhard W. Schulte, F. Diez-Hedo, W. Walk, Valery Schegelsky, Antonino Zichichi, J. Mnich, F. Wittgenstein, J.M. Lubbers, H. Rykaczewski, P. Arce, L. Ludovici, Peter Denes, C. G. Yang, G. Mirabelli, G. Chiefari, S. Shevchenko, E. Drago, Nikita Smirnov, S. Schulte, A. Engler, Konrad Deiters, Q. Ye, L. Niessen, Egidio Longo, C. Spartiotis, B. Monteleoni, T. Riemann, T. Azemoon, Z.F. Gong, R.J. Wu, M. Fukushima, B.Z. Yang, D. Goujon, K. Lübelsmeyer, Piero Spillantini, E. G. Thomas, Paolo Bagnaia, Alberto Aloisio, P. Duinker, Jd Burger, M. Capell, W. Kittel, H. Vogt, A. Grimes, F. Marzano, W. Krenz, C. Li, K. S. Kumar, R. Malik, Speranza Falciano, D. Perret-Gallix, H. S. Fesefeldt, W. Ruckstuhl, Th. Meinholz, J.P. Burq, Vincenzo Innocente, R. Morand, Z. L. Xue, R. Bizzarri, S. Hancke, Marcos Cerrada, Sau Lan Wu, Ian Brock, F. DeNotaristefani, Y. Karyotakis, T. Driever, D. P. Stickland, G. J. Bobbink, M. M. Ilyas, J. Bao, H.J. Schreiber, Howard A. Stone, T.S. Dai, X. W. Tang, I. Sheer, J.M. Qian, R. Fabbretti, P. A. Piroué, Philip Kaaret, Axel König, L. Leistam, Y. Mi, U. Becker, F. Tonisch, Q. Fan, Y. Mir, C. H. Ye, Yanwen Liu, J. M. Le Goff, G. Schwering, M. Schneegans, D. Pandoulas, T. McMahon, T. Spickermann, S. Kwan, Bernard Ille, Sc Yeh, G. Fernandez, H. El Mamouni, L. Montanet, F. J. Eppling, M. Harris, J. Fay, Zhuoxiang Ren, A. Sopczak, M. Wadhwa, X. Leytens, R. Magahiz, J. M. You, D. S. Yan, S. X. Wu, P. Berges, Mingshui Chen, J. A. Rubio, M. Maire, J. D. Swain, N. Produit, L. Antonov, M. Bourquin, K. Strauch, Hafeez R. Hoorani, B. L. Betev, M. Fabre, S. M. Ting, W.D. Nowak, T.J. Wenaus, Manjit Kaur, D. DiBitonto, Ph. Rosselet, Thomas Ferguson, An.A. Vorobyov, T. Matsuda, W. Lohmann, J. Krizmanic, G. A. Yang, M. Steuer, M. Dhina, D. Boutigny, A. A. Syed, H. Anderhub, Georgi Sultanov, G. Morand, G. Forconi, J. Weber, A. Marchionni, C. Dionisi, R. W. Kraemer, V.R. Krastev, O. Adriani, A. Böhm, H. Nowak, E. Gonzalez, Suresh C Tonwar, B.C. Stringfellow, D. J. Schotanus, G. Coignet, R. A. Khan, F. Crijns, V. P. Andreev, G.B. Mills, Pablo Garcia-Abia, S. Lanzano, Bernardo Adeva, Alain Hervé, Kajari Mazumdar, S. Khokhar, Samuel C.C. Ting, J.M. Thenard, A.M. Cartacci, H. Akbari, H.R. Dimitrov, P.H. Fisher, C. Civinni, M. Sachwitz, G. Finocchiaro, A. Bay, L. Li, G. M. Chen, Steven Goldfarb, D. Duchesneau, Xd Cai, Marcel Merk, R.B. Sutton, F. Cesaroni, J. Y. Liao, G. Rahal-Callot, J. Perrier, D. Ren, J.F. Li, H. Suter, D.H. Zhang, Y.F. Wang, G. Landi, M. Maolinbay, J. Schütte, Richard Mount, X.G. Li, M. Aguilar-Benitez, I. Duran, Valentin V. Khoze, K. Schultze, E. Tarkovsky, F. Bruyant, V. Morgunov, Herwig Schopper, M. White, D. Lanske, Luciano Romero, Qian Wang, E. Dénes, U. Vikas, R. Sehgal, A. Contin, Alexander Savin, B. P. Roe, R. de Asmundis, P. Vikas, M. Vollmar, E. Nagy, M. Vivargent, Christine Buisson, M. Guanziroli, C. F. He, Z. M. Wang, D. Wright, Giorgio Gratta, A. Pevsner, E. Shumilov, J. Zoll, J. H. Field, M. Schöntag, J. Behrens, P. J. Li, K. Sudhakar, P. Lebrun, Fridolin Dittus, Barry Blumenfeld, S.Y. Zhang, W. Böhlen, V. Shoutko, Wesley James Metzger, J.H. Wang, P. K. Malhotra, U. Uwer, H. A. Rizvi, A. Kunin, H. van der Graaf, A. Chen, L.S. Hsu, J. Salicio, M. Tonutti, R. Leiste, Igor Vorobiev, Ren-Yuan Zhu, Luciano Barone, Jozsef Toth, J. Lettry, Claudio Luci, M. Hebert, Panos A Razis, P. Blömeke, Elisabetta Gallo, F.C. Erné, Q.Y. Yang, A. Gordeev, M. Micke, G.G.G. Massaro, G. Paternoster, D.W. Schmitz, F. Carbonara, A. Gurtu, S. Reucroft, Z.Q. Yang, Robert Clare, A. Leike, H. Fenker, L. Martinez, W.G. Ma, F. L. Linde, Thomas Hebbeker, Paul Lecoq, V. Commichau, M. Napolitano, H. S. Chen, M. Bocciolini, A. Hasan, X. Lue, U. K. Chaturvedi, Y. S. Lu, Jérôme Rose, R. Wilhelm, G. Trowitzsch, Lawrence W. Jones, B. Spiess, P. Marchesini, V. Lalieu, Ming Zeng, M. Röhner, V. Koutsenko, Z.M. Wang, Y.F. Mao, S. Nowak, E. Jagel, W. Wallraff, Guofan Hu, R. T. Van de Walle, Laszlo Gutay, J. G. Branson, Z. W. Yin, S. N. Ganguli, A. Degré, M.L. Chen, M. Gettner, C. Maña, Marcella Diemoz, G. Von Dardel, D. Kirkby, Z.Y. Lin, A. Bujak, Oliver Kornadt, M. Pohl, T. Böhringer, E. Valente, D. McNally, G. Viertel, Hans J. Vogel, S. Morganti, J. Schwenke, X. Y. Cui, M. Chemarin, G. Herten, Y. H. Chang, George Alverson, W. Friebel, G. Faber, Vineet Kumar, Corinne Goy, F. Ferroni, Y. Zeng, A. Kuhn, J. A. Bakken, V. Plyaskin, P. Schmitz, Alexei Klimentov, C. Camps, K. Freudenreich, T. Angelov, K. Lanius, G. Hu, Carlos Willmott, Z.Z. Xu, H. T. Li, R. Liu, S. S. Gau, P.V.K.S. Baba, Qi An, S. Lökös, K.S. Yang, Th. Rombach, Simonetta Gentile, Kenneth Francis Read, G. 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Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, Hadron, Higgs boson, Context (language use), Particle Physics - Experiment, Standard Model
Abstract

A search for the neutral Higgs boson, using the processes Z 0 → H 0 e + e − , Z 0 → H 0 μ + μ − , Z 0 → H 0 τ + τ − , Z 0 → H 0 v v and Z 0 → H 0 q q , is performed on data collected by the ALEPH detector corresponding to about 11 550 events of Z0 → hadrons. Combining all these processes, the mass range excluded is 32 MeV−15 GeV at 95% CL and 40 MeV−12 GeV at 99% CL. The result from this experiment is unambiguous in the context of the standard model.

Published
1989

32. A Direct Determination of the Number of Light Neutrino Families from E+E--]Nu-Nu-Bar-Gamma at Lep

Author

Adeva, B, Adriani, O, Aguilarbenitez, M, Akbari, H, Alcaraz, J, Aloisio, A, Alverson, G, Alviggi, Mg, Ambrosi, G, An, Q, Anderhub, H, Anderson, Al, Andreev, Vp, Angelov, T, Antonov, L, Antreasyan, D, Arce, P, Arefiev, A, Atamanchuk, A, Azemoon, T, Aziz, T, Baba, Pvks, Bagnaia, Paolo, Bakken, Ja, Baksay, L, Ball, Rc, Banerjee, S, Bao, J, Barillere, R, Barone, Luciano Maria, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Behrens, J, Beingessner, S, Bencze, Gl, Berdugo, J, Berges, P, Bertucci, B, Betev, Bl, Biasini, M, Biland, A, Bilei, Gm, Bizzarri, R, Blaising, Jj, Blomeke, P, Blumenfeld, B, Bobbink, Gj, Bocciolini, M, Bock, R, Bohm, A, Borgia, B, Bourilkov, D, Bourquin, M, Boutigny, D, Bouwens, B, Brambilla, E, Branson, Jg, Brock, Ic, Brooks, M, Bruyant, F, Buisson, C, Bujak, A, Burger, Jd, Burger, Wj, Burq, Jp, Busenitz, J, Cai, Xd, Capell, M, Caria, M, Carminati, F, Cartacci, Am, Cerrada, M, Cesaroni, F, Chang, Yh, Chaturvedi, Uk, Chemarin, M, Chen, A, Chen, C, Chen, Gm, Chen, Hf, Chen, Hs, Chen, J, Chen, M, Chen, Ml, Chen, Wy, Chiefari, G, Chien, Cy, Chmeissani, M, Civinini, C, Clare, I, Clare, R, Coan, Te, Cohn, Ho, Coignet, G, Colino, N, Contin, A, Crijns, F, Cui, Xy, Dai, Ts, Dalessandro, R, Deasmundis, R, Degre, A, Deiters, K, Denes, E, Denes, P, Denotaristefani, F, Dhina, M, Dibitonto, D, Diemoz, M, Dimitrov, Hr, Dionisi, C, Dova, Mt, Drago, E, Driever, T, Duchesneau, D, Duinker, P, Duran, I, Elmamouni, H, Engler, A, Eppling, Fj, Erne, Fc, Extermann, P, Fabbretti, R, Fabre, M, Falciano, S, Fan, Q, Fan, Sj, Fackler, O, Fay, J, Felcini, M, Ferguson, T, Fernandez, D, Fernandez, G, Ferroni, Fernando, Fesefeldt, H, Fiandrini, E, Field, J, Filthaut, F, Finocchiaro, G, Fisher, Ph, Forconi, G, Foreman, T, Freudenreich, K, Friebel, W, Fukushima, M, Gailloud, M, Galaktionov, Y, Gallo, E, Ganguli, Sn, Garciaabia, P, Gau, Ss, Gele, D, Gentile, Simonetta, Goldfarb, S, Gong, Zf, Gonzalez, E, Gordeev, A, Gottlicher, P, Goujon, D, Gratta, G, Grinnell, C, 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F., Gong, E., Gonzalez, A., Gordeev, P., Gottlicher, D., Goujon, G., Gratta, C., Grinnell, M., Gruenewald, M., Guanziroli, J. K., Guo, 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, O., Kornadt, V., Koutsenko, A., Koulbardi, R. W., Kraemer, T., Kramer, V. R., Krastev, W., Krenz, A., Krivshich, J., Krizmanic, K. S., Kumar, V., Kumar, A., Kunin, G., Landi, K., Laniu, D., Lanske, S., Lanzano, P., Lebrun, P., Lecomte, P., Lecoq, P., Lecoultre, D. M., Lee, I., Leedom, J. 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Subjects
SINGLE PHOTONS, SUPERSYMMETRIC PARTICLES, Physics::Instrumentation and Detectors, SEARCH, SCATTERING, High Energy Physics::Experiment, E+E COLLISIONS, Astrophysics::Cosmology and Extragalactic Astrophysics, ANNIHILATION, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
Abstract

The L3 detector at LEP has been used to determine the number of light neutrino families by measuring the cross section of single photon even in e+e- collisions at energies near the Z0 resonance. We have observed 61 single photon candidates with more than 1.5 GeV of deposited energy in the barrel electromagnetic calorimeter, for a total integrated luminosity of 3.0 pb-1. From a likelihood fit to the single photon cross sections, we determine N(nu) = 3.24 +/- 0.46 (statistical) +/- 0.22 (systematic).

Published
1992

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