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54 results on '"E. Tsesmelis"'

1. ELECTRONICS AND READOUT OF A LARGE-AREA SILICON DETECTOR FOR LHC

Author

R.J. Hawkings, B. Lisowski, Erik H.M. Heijne, Pierre Jarron, G. F. Moorhead, Paul Seller, R.A. Bardos, Xin Wu, G. N. Taylor, K. Borer, A.G. Clark, Claus Gössling, R. Bonino, J. Teiger, D. J. Munday, T. Schultz, K. Benslama, H. Kambara, R. Spiwoks, E. Tsesmelis, Paola Scampoli, N. Kundu, J.H. Bibby, Eckhart Fretwurst, P. Murray, Francis Anghinolfi, G. Gorfine, H. Verweij, P. Aspell, J.C. Santiard, Michael Campbell, C. Couyoumtzelis, A. Reichold, G. Lindstroem, Michael Andrew Parker, D. Campbell, A. R. Weidberg, A. Chilingarov, S. N. Tovey, K., Borer, D. J., Munday, M. A., Parker, F., Anghinolfi, P., Aspell, M., Campbell, A., Chilingarov, P., Jarron, E. H., M., J. C., Santiard, Scampoli, Paola, H., Verweij, C., Gossling, B., Lisowski, A., Reichold, R., Spiwok, E., Tsesmeli, K., Benslama, R., Bonino, A. G., Clark, C., Couyoumtzeli, H., Kambara, X., Wu, E., Fretwurst, G., Lindstroem, T., Schultz, R. A., Bardo, G. W., Gorfine, G. F., Moorhead, G. N., Taylor, S. N., Tovey, J. H., Bibby, R. J., Hawking, N., Kundu, A., Weidberg, D., Campbell, P., Murray, P., Seller, and J., Teiger

Subjects
Physics, Nuclear and High Energy Physics, Signal processing, Large Hadron Collider, Physics::Instrumentation and Detectors, business.industry, Detector, Electrical engineering, Integrated circuit, Chip, law.invention, Semiconductor detector, law, Electronics, business, Instrumentation, silicon detector, Voltage
Abstract

The purpose of the RD2 project is to evaluate the feasibility of a silicon tracker and/or preshower detector for LHC. Irradiation studies with doses equivalent to those expected at LHC have been performed to determine the behavior of operational parameters such as leakage current, depletion voltage and charge collection during the life of the detector. The development of fast, dense, low power and low cost signal processing electronics is one of the major activities of the collaboration. We describe the first fully functional integrated analog memory chip with asynchronous read and write operations and level 1 trigger capture capabilities. A complete test beam system using this analog memory chip at 66 MHz has been successfully operated with RD2 prototype silicon detectors during various test runs. The flexibility of the electronics and readout have allowed us to easily interface our set-up to other data acquistion systems. Mechanical studies are in progress to design a silicon tracking detector with several million channels that may be operated at low (0–10°C) temperature, while maintaining the required geometrical precision. Prototype readout boards for such a detector are being developed and simulation studies are being performed to optimize the readout architecture.

Published
2016

2. Jack Steinberger: Memories of the PS and of LEP

Author

E. Tsesmelis

Subjects
Physics, Particle physics, International integration, Time projection chamber, Large Hadron Collider, General Physics and Astronomy, Neutrino beam, Deep inelastic scattering, Engineering physics
Abstract

This contribution, a personal recollection by the author, is part of a special issue – CERN’s accelerators, experiments and international integration 1959–2009. Guest Editor: Herwig Schopper [Schopper, Herwig. 2011. Editorial. Eur. Phys. J. H 36: 437]

Published
2012

3. A study on the applicability of solid state, real-time dosimeters to the CMS experiment at the large hadron collider

Author

E. Tsesmelis, M. Glaser, B. Camanzi, and L Adams

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Dosimeter, Physics::Instrumentation and Detectors, Nuclear Theory, Physics::Medical Physics, Electron, Radiation, Nuclear physics, Cathode ray, Dosimetry, Neutron, Irradiation, Nuclear Experiment, Instrumentation
Abstract

MOSFET dosimeters have been exposed to a large range of radiation fields: 192 MeV positive pions, 500 MeV electrons, 23 GeV protons and a wide energy-spectrum of neutrons. This is the first time that pion dosimetry with MOSFETs is presented. The response curves of the devices are given, together with an evaluation of their dynamic range, showing that these dosimeters can be successfully used to monitor radiation fields up to very high doses and fluences. In the 500 MeV electron beam, an irradiation of p + /n/n + diodes together with MOSFETs was also performed. The results of this irradiation show that both types of dosimeters can be used in CMS to monitor in real time the radiation environment.

Published
2003

4. New results on a search for a 33.9 MeV/c2 neutral particle from π+ decay in the NOMAD experiment

Author

T. Weisse, J.-P. Mendiburu, K. Benslama, H. Zaccone, Alessandro Cardini, H. Pessard, Marco Fraternali, P. Rathouit, C. Joseph, Fr Pastore, B. A. Popov, P. Hurst, V. Flaminio, M. T. Tran, C. Lachaud, F. J. P. Soler, L. Di Lella, Giacomo Graziani, G. Bassompierre, S. Boyd, M. Valdata-Nappi, Marco Laveder, J.M. Gaillard, Roberto Ferrari, B. Lakić, G. N. Taylor, D. Steele, E. Gangler, J. Dumarchez, M. C. Gonzalez-Garcia, K. Schahmaneche, F. Juget, J. A. Hernando, Malcolm Ellis, M. Kirsanov, Th. Stolarczyk, A.-M. Touchard, O. Klimov, R. Cousins, Bruce Yabsley, J.J. Gómez-Cadenas, X. Méchain, J. Rico, A. Marchionni, J.-M. Vieira, Valerio Vercesi, A. Cervera-Villanueva, M. E. Sevior, Dmitry V. Naumov, Kevin Varvell, C. Nguyen-Mau, A. Placci, L. Camilleri, R. Petti, Stefano Lacaprara, A. Kovzelev, Fergus Wilson, T. Del Prete, Caroline Poulsen, E. do Couto e Silva, F. Salvatore, Vyacheslav Valuev, A. De Santo, E. Pennacchio, N. Hyett, S.A. Bunyatov, J. Bouchez, F. Vannucci, M. Gouanère, H. Degaudenzi, G. J. Feldman, J-P. Meyer, S. N. Tovey, I. Bird, A. Lupi, G. F. Moorhead, A. Grant, D. Hubbard, P. Zuccon, J.-M. Levy, G. Collazuol, Mario Stipčević, Didier Ferrere, G. Conforto, Barry Blumenfeld, L.J. Winton, A. Baldisseri, Claus Gößling, J. Kokkonen, G. Vidal-Sitjes, Sergei Gninenko, A. Krasnoperov, P. Nédélec, M. Mezzetto, T. Vinogradova, Nathalie Besson, D. Sillou, J. Ulrichs, Kai Zuber, E. Tsesmelis, Caren Hagner, T. Fazio, André Rubbia, A. Godley, G. Sozzi, A. Guglielmi, S.R. Mishra, Chiara Roda, L. Linssen, D. Pollmann, E. Iacopini, P. Astier, D. Autiero, F.V. Weber, A. Letessier-Selvon, D. Daniels, Giacomo Polesello, M. Tareb-Reyes, Vincenzo Cavasinni, J. Long, Domizia Orestano, F. Martelli, M. Contalbrigo, T. Dignan, U. Stiegler, A. Lanza, J. Gosset, D. Gibin, A. Polyarush, Achim Geiser, L. S. Peak, M. Veltri, Antonio Bueno, A. N. Toropin, L. La Rotonda, M. Baldo-Ceolin, M. Banner, D. Geppert, P.W. Cattaneo, Ante Ljubičić, F. Bobisut, N.V. Krasnikov, C. Conta, B. Schmidt, Yu. Nefedov, L. Vacavant, and V. Tereshchenko

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Neutrino decay, Neutrino mixing, Branching fraction, Nuclear physics, Pion, Pi, Direct search, Anomaly (physics), Neutral particle, Event (particle physics), KARMEN
Abstract

We report on a direct search in NOMAD for a new 33.9 MeV/c^2 neutral particle (X) produced in pion decay in flight, pi-->mu_X followed by the decay X -->nu e^+e^-. Both decays are postulated to occur to explain the time anomaly observed by the KARMEN experiment. From the analysis of the data collected during the 1996?1998 runs with 4.1×10^19 protons on target, a single candidate event consistent with background expectations was found. The search is sensitive to a pion branching ratio BR(pi-->muX >3.7×10^-15, significantly smaller than previous experimental limits.

Published
2002

5. CERN and the high energy frontier

Author

E. Tsesmelis

Subjects
Physics, High energy, Frontier, Large Hadron Collider, QC1-999, Key (cryptography), Systems engineering, Engineering physics, Accelerators and Storage Rings, Particle Physics - Experiment
Abstract

This paper presents the particle physics programme at CERN at the high-energy frontier. Starting from the key open questions in particle physics and the large-scale science facilities existing at CERN, concentrating on the Large Hadron Collider(LHC), this paper goes on to present future possibilities for global projects in high energy physics. The paper presents options for future colliders, all being within the framework of the recently updated European Strategy for Particle Physics, and all of which have a unique value to add to experimental particle physics. The paper concludes by outlining key messages for the way forward for high-energy physics research.

Published
2014

6. Final NOMAD results on νμ→ντ and νe→ντ oscillations including a new search for ντ appearance using hadronic τ decays

Author

P Astier, D Autiero, A Baldisseri, M Baldo-Ceolin, M Banner, G Bassompierre, K Benslama, N Besson, I Bird, B Blumenfeld, F Bobisut, J Bouchez, S Boyd, A Bueno, S Bunyatov, L Camilleri, A Cardini, P.W Cattaneo, V Cavasinni, A Cervera-Villanueva, A Chukanov, G Collazuol, G Conforto, C Conta, M Contalbrigo, R Cousins, D Daniels, H Degaudenzi, T Del Prete, A De Santo, T Dignan, L Di Lella, E do Couto e Silva, J Dumarchez, M Ellis, G.J Feldman, R Ferrari, D Ferrère, V Flaminio, M Fraternali, J.-M Gaillard, E Gangler, A Geiser, D Geppert, D Gibin, S Gninenko, A Godley, J.-J Gomez-Cadenas, J Gosset, C Gößling, M Gouanère, A Grant, G Graziani, A Guglielmi, C Hagner, J Hernando, D Hubbard, P Hurst, N Hyett, E Iacopini, C Joseph, F Juget, M Kirsanov, O Klimov, J Kokkonen, A Kovzelev, A Krasnoperov, D Kustov, V.E Kuznetsov, S Lacaprara, C Lachaud, B Lakić, A Lanza, L La Rotonda, M Laveder, A Letessier-Selvon, J.-M Levy, L Linssen, A Ljubič, J Long, A Lupi, A Marchionni, F Martelli, X Méchain, J.-P Mendiburu, J.-P Meyer, M Mezzetto, S.R Mishra, G.F Moorhead, D Naumov, P Nédélec, Yu Nefedov, C Nguyen-Mau, D Orestano, F Pastore, L.S Peak, E Pennacchio, H Pessard, R Petti, A Placci, G Polesello, D Pollmann, A Polyarush, B Popov, C Poulsen, J Rico, P Riemann, C Roda, A Rubbia, F Salvatore, K Schahmaneche, B Schmidt, T Schmidt, A Sconza, M Sevior, D Sillou, F.J.P Soler, G Sozzi, D Steele, U Stiegler, M Stipč, Th Stolarczyk, M Tareb-Reyes, G.N Taylor, V Tereshchenko, A Toropin, A.-M Touchard, S.N Tovey, M.-T Tran, E Tsesmelis, J Ulrichs, L Vacavant, M Valdata-Nappi, V Valuev, F Vannucci, K.E Varvell, M Veltri, V Vercesi, G Vidal-Sitjes, J.-M Vieira, T Vinogradova, F.V Weber, T Weisse, F.F Wilson, L.J Winton, B.D Yabsley, H Zaccone, K Zuber, and P Zuccon

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Oscillation, 0103 physical sciences, Hadron, High Energy Physics::Experiment, Neutrino beam, 010306 general physics, 01 natural sciences, Lepton
Abstract

Results from the nu_tau appearance search in a neutrino beam using the full NOMAD data sample are reported. A new analysis unifies all the hadronic tau decays, significantly improving the overall sensitivity of the experiment to oscillations. The "blind analysis" of all topologies yields no evidence for an oscillation signal. In the two-family oscillation scenario, this sets a 90% C.L. allowed region in the sin^2(2theta)-Delta m^2 plane which includes sin^2(2theta) nu_tau oscillation hypothesis results in sin^2(2theta)

Published
2001

7. A study of backward going p and π− in interactions with the NOMAD detector

Author

P. Astier, D. Autiero, A. Baldisseri, M. Baldo-Ceolin, M. Banner, G. Bassompierre, N. Besson, I. Bird, B. Blumenfeld, F. Bobisut, J. Bouchez, S. Boyd, A. Bueno, S. Bunyatov, L. Camilleri, A. Cardini, P.W. Cattaneo, V. Cavasinni, A. Cervera-Villanueva, A. Chukanov, G. Collazuol, G. Conforto, C. Conta, M. Contalbrigo, R. Cousins, D. Daniels, H. Degaudenzi, T. Del Prete, A. De Santo, T. Dignan, L. Di Lella, E. do Couto e Silva, J. Dumarchez, M. Ellis, T. Fazio, G.J. Feldman, R. Ferrari, D. Ferrère, V. Flaminio, M. Fraternali, J.-M. Gaillard, E. Gangler, A. Geiser, D. Geppert, D. Gibin, S. Gninenko, A. Godley, J.-J. Gomez-Cadenas, J. Gosset, C. Gößling, M. Gouanère, A. Grant, G. Graziani, A. Guglielmi, C. Hagner, J. Hernando, D. Hubbard, P. Hurst, N. Hyett, E. Iacopini, C. Joseph, F. Juget, M. Kirsanov, O. Klimov, J. Kokkonen, A. Kovzelev, A. Krasnoperov, D. Kustov, V. Kuznetsov, S. Lacaprara, C. Lachaud, B. Lakić, A. Lanza, L. La Rotonda, M. Laveder, A. Letessier-Selvon, J.-M. Levy, L. Linssen, A. Ljubičić, J. Long, A. Lupi, A. Marchionni, F. Martelli, X. Méchain, J.-P. Mendiburu, J.-P. Meyer, M. Mezzetto, S.R. Mishra, G.F. Moorhead, D. Naumov, P. Nédélec, Yu. Nefedov, C. Nguyen-Mau, D. Orestano, F. Pastore, L.S. Peak, E. Pennacchio, H. Pessard, R. Petti, A. Placci, G. Polesello, D. Pollmann, A. Polyarush, B. Popov, C. Poulsen, J. Rico, P. Riemann, C. Roda, A. Rubbia, F. Salvatore, K. Schahmaneche, B. Schmidt, T. Schmidt, M. Sevior, D. Sillou, F.J.P. Soler, G. Sozzi, D. Steele, U. Stiegler, M. Stipčević, Th. Stolarczyk, M. Tareb-Reyes, G.N. Taylor, V. Tereshchenko, A. Toropin, A.-M. Touchard, S.N. Tovey, M.-T. Tran, E. Tsesmelis, J. Ulrichs, L. Vacavant, M. Valdata-Nappi, V. Valuev, F. Vannucci, K.E. Varvell, M. Veltri, V. Vercesi, G. Vidal-Sitjes, J.-M. Vieira, T. Vinogradova, F.V. Weber, T. Weisse, F.F. Wilson, L.J. Winton, B.D. Yabsley, H. Zaccone, K. Zuber, and P. Zuccon

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, Proton, 010308 nuclear & particles physics, Detector, Order (ring theory), 01 natural sciences, Momentum, 0103 physical sciences, Pi, Particle, Production (computer science), 010306 general physics
Abstract

Backward proton and $\pi^-$ production has been studied in $\nu_{\mu}CC$ interactions with carbon nuclei. Detailed analyses of the momentum distributions, of the production rates, and of the general features of events with a backward going particle, have been carried out in order to understand the mechanism producing these particles. The backward proton data have been compared with the predictions of the reinteraction and the short range correlation models.

Published
2001

8. Measurement of the polarization in νμ charged current interactions in the NOMAD experiment

Author

J. Long, J. Gosset, J.-P. Mendiburu, J. A. Hernando, Alessandro Cardini, D. Gibin, A. Letessier-Selvon, P. Hurst, L. S. Peak, T. Vinogradova, A. Placci, J.M. Gaillard, Barry Blumenfeld, L. Di Lella, D. Steele, D. Daniels, Giacomo Polesello, M. Tareb-Reyes, Th. Stolarczyk, D. Kustov, A. Polyarush, Kevin Varvell, M. E. Sevior, A. Cervera-Villanueva, A. De Santo, T. Dignan, C. Conta, M. Gouanere, G. Vidal-Sitjes, M. Kirsanov, Achim Geiser, Didier Ferrere, B. Schmidt, Antonio Bueno, R. Petti, A. Marchionni, R. Cousins, Fergus Wilson, O.L. Klimov, J.-M. Vieira, A. N. Toropin, A.-M. Touchard, T. Weisse, André Rubbia, G. Conforto, A. Grant, P. Nedelec, L. Camilleri, G. Bassompierre, M. Mezzetto, Caroline Poulsen, Artem Chukanov, E. Iacopini, S. Boyd, F. Martelli, B. Lakić, M. Veltri, G. Collazuol, Mario Stipčević, J. Kokkonen, G. N. Taylor, Sergei Gninenko, Kai Zuber, Malcolm Ellis, A. Kovzelev, Valentin Kuznetsov, Vincenzo Cavasinni, E. do Couto e Silva, J-P. Meyer, B. A. Popov, V. Flaminio, L.J. Winton, S.A. Bunyatov, Nathalie Besson, F. J. P. Soler, Roberto Ferrari, J. Ulrichs, Yu. Nefedov, L. Vacavant, J.J. Gómez-Cadenas, L. La Rotonda, G. Sozzi, I. Bird, A. Baldisseri, J. Bouchez, U. Stiegler, D. Geppert, P.W. Cattaneo, Ante Ljubičić, Bruce Yabsley, X. Méchain, A. Guglielmi, A. Lupi, P. Riemann, Claus Gößling, Alexey Krasnoperov, F. Salvatore, E. Tsesmelis, Caren Hagner, M. Baldo-Ceolin, M. Banner, A. Lanza, Marco Fraternali, T. Schmidt, A. Godley, M. T. Tran, E. Gangler, Valerio Vercesi, S.R. Mishra, M. Valdata-Nappi, Frédéric Juget, Chiara Roda, Vyacheslav Valuev, Dmitry V. Naumov, P. Astier, J. Rico, F. Vannucci, D. Autiero, E. Pennacchio, N. Hyett, D. Pollmann, D. Hubbard, P. Zuccon, H. Zaccone, T. Fazio, C. Joseph, H. Pessard, Domizia Orestano, Marco Laveder, L. Linssen, J. Dumarchez, M. Contalbrigo, F.V. Weber, J. M. Levy, H. Degaudenzi, G. J. Feldman, G. F. Moorhead, C. Lachaud, Giacomo Graziani, K. Schahmaneche, S. Lacaprara, V. Tereshchenko, F. Bobisut, C. Nguyen-Mau, T. Del Prete, D. Sillou, S.N. Tovey, and Fr Pastore

Subjects
Physics, Nuclear and High Energy Physics, Angular momentum, 010308 nuclear & particles physics, Elementary particle, Polarization (waves), 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, Bubble chamber, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, Charged current, Lepton, Boson
Abstract

The Λ polarization in νμ charged current interactions has been measured in the NOMAD experiment. The event sample (8087 reconstructed Λ 's) is more than an order of magnitude larger than that of previous bubble chamber experiments, while the quality of event reconstruction is comparable. We observe negative polarization along the W -boson direction which is enhanced in the target fragmentation region: Px(xF 0)=−0.09±0.06(stat)±0.03(sys) . These results provide a test of different models describing the nucleon spin composition and the spin transfer mechanisms. A significant transverse polarization (in the direction orthogonal to the Λ production plane) has been observed for the first time in a neutrino experiment: Py=−0.22±0.03(stat)±0.01(sys) . The dependence of the absolute value of Py on the Λ transverse momentum with respect to the hadronic jet direction is in qualitative agreement with the results from unpolarized hadron–hadron experiments.

Published
2001

9. Measurement of the polarization in charged current interactions in the NOMAD experiment

Author

T. Weisse, D. Sillou, F. Salvatore, Vyacheslav Valuev, A. Godley, A. Guglielmi, H. Zaccone, G. J. Feldman, G. F. Moorhead, C. Gssling, B. Schmidt, T. Fazio, O.L. Klimov, Laurent Vacavant, S. Tereshchenko, J. M. Levy, C. Joseph, Michel Gouanère, A. Placci, S.R. Mishra, F. F. Wilson, F. Bobisut, D. Autiero, Frédéric Juget, U. Stiegler, C. Nguyen-Mau, J. Long, E. Tsesmelis, Caren Hagner, R. Petti, D. Geppert, P.W. Cattaneo, Ante Ljubičić, Caroline Poulsen, A. De Santo, A. Polyarush, J.M. Gaillard, P. Rathouit, Achim Geiser, S.A. Bunyatov, J. Kokkonen, Marco Laveder, D. Hubbard, P. Zuccon, J.-P. Mendiburu, Artem Chukanov, J. A. Hernando, I. Bird, A. Lanza, K. Benslama, T. Vinogradova, R. Cousins, Alessandro Cardini, Marco Fraternali, L. La Rotonda, T. Schmidt, A. Lupi, J.-M. Vieira, D. Kustov, Didier Ferrere, L. Linssen, F. Vannucci, M. T. Tran, T. Dignan, T. Del Prete, L. S. Peak, A. M. Touchard, M. Contalbrigo, Roberto Ferrari, Valerio Vercesi, F.V. Weber, Nathalie Besson, C. Conta, M. Kirsanov, E. Gangler, G. Collazuol, Mario Stipčević, Malcolm Ellis, M. Valdata-Nappi, Sergei Gninenko, Antonio Bueno, A. N. Toropin, V. Flaminio, Domizia Orestano, P. Hurst, Kevin Varvell, Dmitry V. Naumov, G. Polesello, M. Banner, F. J. P. Soler, A. Baldisseri, P. Riemann, A. Letessier-Selvon, Alastair Grant, Bruce Yabsley, X. Méchain, André Rubbia, H. Degaudenzi, L. Di Lella, S. B. Boyd, J. Gosset, H. Pessard, P. Nedelec, Chiara Roda, D. Daniels, J.J. Gómez-Cadenas, D. Steele, G. Conforto, Barry Blumenfeld, J. Rico, C. Lachaud, A. Cervera-Villanueva, N. Hyett, D. Pollmann, G. Bassompierre, E. Iacopini, M. Tareb-Reyes, A. Marchionni, Valentin Kuznetsov, B. A. Popov, S. Lacaprara, E. Pennacchio, D. Gibin, K. Schahmaneche, E Silva E. Do Couto, J-P. Meyer, M. E. Sevior, M. Veltri, J. Dumarchez, L. Camilleri, L.J. Winton, F. Martelli, G. Graziani, B. Lakić, Vincenzo Cavasinni, G. N. Taylor, J. Ulrichs, J. Bouchez, Yu. Nefedov, G. Sozzi, A. Kovzelev, T. Stolarczyk, M. Mezzetto, Kai Zuber, P. Astier, Alexey Krasnoperov, M. Baldo-Ceolin, S.N. Tovey, and Fr Pastore

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, Polarization (waves), Lambda, 01 natural sciences, Nuclear physics, 0103 physical sciences, Bubble chamber, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, 010306 general physics, Nucleon, Order of magnitude, Charged current
Abstract

The $\Lambda$ polarization in $\nu_\mu$ charged current interactions has been measured in the NOMAD experiment. The event sample (8087 reconstructed $\Lambda$'s) is more than an order of magnitude larger than that of previous bubble chamber experiments, while the quality of event reconstruction is comparable. We observe negative polarization along the $W$-boson direction which is enhanced in the target fragmentation region: $P_x (x_F 0) = -0.21 \pm 0.04 \mbox{(stat)} \pm 0.02 \mbox{(sys)}$. In the current fragmentation region we find $P_x (x_F 0) = -0.09 \pm 0.06 \mbox{(stat)} \pm 0.03 \mbox{(sys)}$. These results provide a test of different models describing the nucleon spin composition and the spin transfer mechanisms. A significant transverse polarization (in the direction orthogonal to the $\Lambda$ production plane) has been observed for the first time in a neutrino experiment: $P_y = -0.22 \pm 0.03 \mbox{(stat)} \pm 0.01 \mbox{(sys)}$. The dependence of the absolute value of $P_y$ on the $\Lambda$ transverse momentum with respect to the hadronic jet direction is in qualitative agreement with the results from unpolarized hadron-hadron experiments.

Published
2000

10. Limit on νe→ντ oscillations from the NOMAD experiment

Author

J. A. Hernando, D. Steele, H. Pessard, Roberto Ferrari, M. Steininger, C. Lachaud, Malcolm Ellis, J.J. Gómez-Cadenas, Bruce Yabsley, A. Cervera-Villanueva, L. Camilleri, X. Méchain, J. Kokkonen, F. Martelli, T. Weisse, A. Krasnoperov, S. Bunyatov, Achim Geiser, A. N. Toropin, Th. Stolarczyk, E. Pennacchio, M. Mezzetto, D. Sillou, P. Rathouit, Giacomo Graziani, N. Hyett, A. Letessier-Selvon, S.N. Tovey, Kai Zuber, Fr Pastore, E. do Couto e Silva, M. E. Sevior, M. Veltri, G. Bassompierre, D. Daniels, M. Gouanère, M. Tareb-Reyes, J. M. Gaillard, T. Vinogradova, A. Godley, Valentin Kuznetsov, J. Dumarchez, S. Boyd, J. Long, D. Geppert, Caroline Poulsen, J-P. Meyer, L. Linssen, P.W. Cattaneo, Ante Ljubičić, B. Lakić, L.J. Winton, U. Stiegler, Marco Fraternali, G. N. Taylor, J. Ulrichs, Chiara Roda, D. Pollmann, H. Degaudenzi, J.-P. Mendiburu, G. J. Feldman, F. Salvatore, G. F. Moorhead, G. Sozzi, Valerio Vercesi, Kevin Varvell, G. Polesello, F. V. Weber, Alessandro Cardini, Domizia Orestano, Claus Gößling, J. Gosset, O. Klimov, A. Grant, M. Baldo-Ceolin, D. Gibin, H. Zaccone, C. Nguyen-Mau, T. Del Prete, P. Hurst, A. Polayrush, K. Benslama, Vyacheslav Valuev, F. Vannucci, C. Joseph, A. Guglielmi, L. Di Lella, F. Juget, A. Lanza, M. Valdata-Nappi, M. T. Tran, T. Dignan, A. Pluquet, L.S. Peak, M. Kirsanov, G. Ballocchi, D. Hubbard, P. Zuccon, K. Schahmaneche, L. La Rotonda, S. R. Mishra, M. Banner, Marco Laveder, E. Gangler, M. Contalbrigo, A. Bueno, Nathalie Besson, P. Riemann, R. Cousins, J.-M. Vieira, I. Bird, J. Rico, A. Marchionni, A. Kovzelev, André Rubbia, Barry Blumenfeld, E. Iacopini, Vincenzo Cavasinni, D. Autiero, V. Flaminio, F. J. P. Soler, Didier Ferrere, Sergei Gninenko, P. Astier, E. Tsesmelis, Caren Hagner, T. Schmidt, J. Bouchez, A. Lupi, A. Baldisseri, S. Lacaprara, Yu. Nefedov, L. Vacavant, A. Placci, F. Bobisut, A. De Santo, C. Conta, B. Schmidt, G. Conforto, A. M. Touchard, P. Nédélec, J. M. Levy, R. Petti, Fergus Wilson, G. Collazuol, Mario Stipčević, and B. A. Popov

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, 0103 physical sciences, Context (language use), Limit (mathematics), Neutrino beam, 010306 general physics, Neutrino oscillation, 01 natural sciences, Charged current
Abstract

In the context of a two-flavour approximation we reinterpret the published NOMAD limit on ν μ → ν τ oscillations in terms of ν e → ν τ oscillations. At 90% C.L. we obtain sin 2 2θ eτ 5.2×10 −2 for large Δm 2 , while for sin 2 2 θ eτ =1 the confidence region includes Δm 2 2 / c 4 .

Published
2000

11. A more sensitive search for νμ→ντ oscillations in NOMAD

Author

F. Vannucci, V. Flaminio, Giacomo Graziani, F. J. P. Soler, O. Klimov, I.J. Donnelly, M. Banner, Caroline Poulsen, C. Nguyen-Mau, T. Del Prete, J. Dumarchez, Domizia Orestano, K. Benslama, André Rubbia, E. Pennacchio, N. Hyett, A. Lanza, E. Tsesmelis, Caren Hagner, T. Weisse, E. Iacopini, T. Vinogradova, M. T. Tran, I. Bird, P. Astier, Th. Stolarczyk, S. Bunyatov, F. Salvatore, B.D Yabsley, M. K. Vo, Vincenzo Cavasinni, Nathalie Besson, G. Renzoni, T. Schmidt, Antonio Bueno, A. N. Toropin, D. Autiero, P. Hurst, S.N. Tovey, G. J. Feldman, L. La Rotonda, Fr Pastore, A. Krasnoperov, E. Gangler, Didier Ferrere, Marco Fraternali, L. Di Lella, P. Rathouit, G. F. Moorhead, J. Kokkonen, J. Long, A Gandolfo, A. Kovzelev, A. Baldisseri, M. E. Sevior, M. Contalbrigo, A. M. Touchard, P. Nédélec, C. Conta, B. Schmidt, M. Kirsanov, D. Geppert, A. Godley, A. Guglielmi, J. A. Hernando, P.W. Cattaneo, Ante Ljubičić, Roberto Renò, E Manola-Poggioli, P. Riemann, J.-P. Mendiburu, L. Linssen, A. Cervera-Villanueva, G. Collazuol, Mario Stipčević, G. Conforto, S.R. Mishra, T. Dignan, Alessandro Cardini, A. Placci, E. do Couto e Silva, R. Petti, H. Pessard, U. Stiegler, J. Bouchez, Valerio Vercesi, Chiara Roda, A. De Santo, M. Veltri, J. M. Levy, F. Bobisut, B Popov, D. Verkindt, A. Lupi, L. Camilleri, Kevin Varvell, Stefano Lacaprara, A. Grant, J. Rico, A. Marchionni, Fergus Wilson, H. Zaccone, D. Pollmann, Malcolm Ellis, Roberto Ferrari, Vyacheslav Valuev, S.A. Volkov, C. Joseph, J.-M. Gaillard, Barry Blumenfeld, G. Ballocchi, J.J. Gómez-Cadenas, R. Cousins, Marco Laveder, D. Hubbard, P. Zuccon, K. Schahmaneche, M. Baldo-Ceolin, X. Méchain, F.V. Weber, J.-M. Vieira, Yu. Nefedov, L. Vacavant, J. Gosset, D. Gibin, T. Fazio, Achim Geiser, L.S. Peak, M Valdata-Nappi, M. Gouanère, G. Bassompierre, M. Mezzetto, D. Sillou, Kai Zuber, S. Boyd, B. Lakić, G. N. Taylor, Claus Gößling, D. Steele, L. Mossuz, F. Juget, M. Steininger, H Degaudenzi, C. Lachaud, G Segneri, V. Tereshchenko, A. Pluquet, F. Martelli, S. N. Gninenko, A. Letessier-Selvon, D. Daniels, Giacomo Polesello, M. Tareb-Reyes, Valentin Kuznetsov, J-P. Meyer, L.J. Winton, J. Ulrichs, and G. Sozzi

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Oscillation, Scattering, High Energy Physics::Experiment, Sensitivity (control systems), Neutrino, Neutrino beam, Neutrino oscillation, Charged current, Confidence region
Abstract

With additional data and improved algorithms, we have enhanced the sensitivity of our appearance search for $\numunutau$ oscillations in the NOMAD detector in the CERN-SPS wide-band neutrino beam. The search uses kinematic criteria to identify $\nutau$ charged current interactions followed by decay of the $\tau^-$ to one of several decay modes. Our ``blind'' analyses of deep-inelastic scattering data taken in 1996 and 1997, combined with consistent reanalyses of previously reported 1995 data, yield no oscillation signal. For the two-family oscillation scenario, we present the contour outlining a 90\% C.L. confidence region in the $\sin^22\theta_{\mu \tau} - \Delta m^2$ plane. At large $\Delta m^2$, the confidence region includes $\sin^22\theta_{\mu\tau}\ \ 1.2\times10^{-3}$ (a limit 3.5 times more stringent than in our previous publication), while at $\sin^22\theta_{\mu \tau}=1$, the confidence region includes $\Delta m^2 1.2$ eV$^2$/$c^4$.

Published
1999

12. Precision measurement of scaled momentum, charge multiplicity, and thrust in νμN and interactions

Author

H. Degaudenzi, G. J. Feldman, G. F. Moorhead, Valentin Kuznetsov, F. Salvatore, F. Vannucci, M. K. Vo, Corrado Angelini, J. Long, L.J. Winton, B. A. Popov, G. Collazuol, Mario Stipčević, J. M. Levy, J. Ulrichs, D. Verkindt, S.A. Bunyatov, P. Rathouit, M. Banner, Fergus Wilson, G. Sozzi, Alexey Krasnoperov, B. Schmidt, E. Manola-Poggioli, T. Dignan, J. Altegoer, Caroline Poulsen, M. Baldo-Ceolin, S. Basa, J. Kokkonen, R. Cousins, Nathalie Besson, G. Renzoni, T. Vinogradova, L. Linssen, Achim Geiser, Giacomo Graziani, J.-M. Vieira, M. E. Sevior, A. Baldisseri, Valerio Vercesi, S. N. Gninenko, André Rubbia, O.L. Klimov, P. Hurst, Marco Fraternali, T. Stolarczyk, M. Serrano, Kevin Varvell, A. Grant, H. Pessard, P. Nedelec, P. Astier, L. Camilleri, A. Kovzelev, S. Tereshchenko, D. Autiero, J. Dumarchez, Vyacheslav Valuev, E. do Couto e Silva, J. Hernando, D. Hubbard, P. Zuccon, Malcolm Ellis, Chiara Roda, J.J. Gómez-Cadenas, E. Iacopini, C. Lazzeroni, D. Sillou, A. Guglielmi, Vincenzo Cavasinni, A. Letessier-Selvon, D. Daniels, Giacomo Polesello, M. Tareb-Reyes, F. Bobisut, S.A. Volkov, L. Di Lella, Roberto Ferrari, M. Kirsanov, Bruce Yabsley, X. Méchain, F.V. Weber, M. Veltri, V. Uros, E. Pennacchio, N. Hyett, D. Pollmann, I. Bird, V. Vacavant, Michel Gouanère, F. Martelli, M. Valdata-Nappi, A. Godley, J-P. Meyer, D. Nordmann, A. Cervera-Villanueva, K. Benslama, L. La Rotonda, H. Zaccone, M. Werlen, S.R. Mishra, A. Lanza, U. Stiegler, S. Lacaprara, C. Joseph, Yu. Nefedov, T. Fazio, G. Ballocchi, A. Pluquet, C. Conta, Frédéric Juget, Marco Laveder, Barry Blumenfeld, M. T. Tran, Domizia Orestano, E. Gangler, J. Gosset, R. Petti, G. Conforto, D. Gibin, K. Schahmaneche, M. Contalbrigo, J.-P. Mendiburu, J. P. Perroud, G. Bassompierre, Alessandro Cardini, S. Boyd, G. N. Taylor, V. Flaminio, P. Galumian, F. J. P. Soler, D. Geppert, P.W. Cattaneo, Ante Ljubičić, A. Placci, L. S. Peak, A. De Santo, Antonio Bueno, Fr Pastore, A. N. Toropin, I.J. Donnelly, C. Nguyen-Mau, T. Del Prete, M. Mezzetto, Kai Zuber, S. N. Tovey, A. M. Touchard, J. Bouchez, D. Steele, L. Mossuz, A. Lupi, J. M. Gaillard, Didier Ferrere, A. Marchionni, M. Steininger, Claus Gößling, E. Tsesmelis, Caren Hagner, and T. Weisse

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Overline, Coherence effect, Electronic document, Thrust, Multiplicity (chemistry), Charged current
Abstract

By focusing on the notion of electronic document, we differentiate two evolutions which are useful to distinct titles: on the one hand are the documents, which have value of reference. Its administrator will take care to preserve its integrity and its context of production which is strongly significant. On the other hand are resources, evolutionary elements by nature, which the user must be able to appropriate and who must thus be placed at the disposal so that the production is erased, to focus on a logic of exploitation and service.

Published
1999

13. A search for ν→ν oscillations using the NOMAD detector

Author

M. Contalbrigo, T. Fazio, V. Flaminio, F. J. P. Soler, K. Benslama, T. Weisse, L.S. Peak, A. Lanza, E. do Couto e Silva, R. Petti, André Rubbia, F. Bobisut, D. Scannicchio, F. Juget, J-P. Meyer, L. La Rotonda, H. Pessard, E. Manola-Poggioli, M. Mezzetto, L.J. Winton, V. Valuev, M. T. Tran, D. Sillou, Kai Zuber, E. Iacopini, R. Cousins, J. Ulrichs, Kevin Varvell, G. Collazuol, Mario Stipčević, L. Linssen, A. Cervera-Villanueva, J.-M. Vieira, A. Grant, V. Tereshchenko, P. Rathouit, D. Pollmann, A. Pluquet, Giacomo Graziani, Didier Ferrere, G. Sozzi, F.V. Weber, D. Verkindt, P. Steffen, G. Conforto, Barry Blumenfeld, Th. Stolarczyk, Vincenzo Cavasinni, J. Gosset, A. Baldisseri, A. Marchionni, J. Altegoer, S.A. Volkov, E. Gangler, D. Kekez, P. Nédélec, Roberto Ferrari, S. N. Gninenko, J.-M. Gaillard, J. Long, M. Gouanère, J. M. Levy, M. E. Sevior, Marco Fraternali, Claus Gößling, A. Placci, M. Veltri, A. Letessier-Selvon, D. Gibin, G. Bassompierre, A. De Santo, D. Autiero, Caroline Poulsen, D. Daniels, E. Tsesmelis, J.-P. Mendiburu, Corrado Angelini, V. Uros, M. Valdata-Nappi, D. Steele, Bruce Yabsley, X. Méchain, Stefano Lacaprara, L. Mossuz, Giacomo Polesello, Fergus Wilson, Alessandro Cardini, M. Tareb-Reyes, B. G. Pope, M. Baldo-Ceolin, S. Boyd, D. Geppert, Achim Geiser, M. Steininger, H. Degaudenzi, T. Dignan, G. J. Feldman, P.W. Cattaneo, Ante Ljubičić, V.E. Kuznetsov, G. N. Taylor, S. Basa, J. Bouchez, G. F. Moorhead, A. Lupi, B. Khomenko, A. M. Touchard, S. Bunyatov, F. Salvatore, L. Camilleri, Yu. Nefedov, J. Kokkonen, M. K. Vo, A. Kovzelev, P. Hurst, T. Vinogradova, B. Popov, L. Vacavant, L. Di Lella, J. Hernando, D. Hubbard, K. Schahmaneche, C. Hagner, F. Martelli, U. Stiegler, C. Conta, S.N. Tovey, M. Kirsanov, I. Bird, P. Astier, Fr Pastore, Domizia Orestano, H. Plothow-Besch, Antonio Bueno, A. N. Toropin, F. Vannucci, J. P. Perroud, A. Sconza, P. Galumian, M. Banner, J.J. Gómez-Cadenas, A. Castera, O. Klimov, I.J. Donnelly, C. Nguyen-Mau, T. Del Prete, E. Pennacchio, N. Hyett, G. Fumagalli, M. Werlen, S.R. Mishra, Chiara Roda, B. Schmidt, Valerio Vercesi, M. Serrano, H. Zaccone, C. Joseph, G. Ballocchi, Marco Laveder, Nathalie Besson, G. Renzoni, C. Lazzeroni, A. Guglielmi, and J. Dumarchez

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Oscillation, Detector, High Energy Physics::Experiment, Detection theory, Wide band, Neutrino oscillation, Signal, Charged current, Beam (structure)
Abstract

NOMAD is a neutrino oscillation experiment designed to search for ντ appearance in the CERN-SPS wide band νμ beam. Signal detection relies on the identification of ντ charged current interactions using kinematic criteria. The analysis of the 1995 data sample yields no oscillation signal. Combining all studied τ decay modes, a limit of sin 2 2θ μτ 4.2×10 −3 is obtained for large Δm2 at the 90% confidence level.

Published
1998

14. A precision measurement of charm dimuon production in neutrino interactions from the NOMAD experiment

Author

K. Schahmaneche, C.T. Kullenberg, P. Hurst, L. Di Lella, J.-P. Mendiburu, M. Valdata-Nappi, Alessandro Cardini, J.J. Kim, R. Challis, S.A. Bunyatov, J. A. Hernando, V. Tereshchenko, Roberto Ferrari, A. Baldisseri, Th. Stolarczyk, G. Collazuol, Mario Stipčević, A. Cervera-Villanueva, C. Lachaud, Giacomo Graziani, K. Benslama, T. Weisse, B. A. Popov, M. E. Sevior, A. Lanza, F. Bobisut, A. Marchionni, M. T. Tran, Bruce Yabsley, X. Méchain, E. Gangler, H. Zaccone, C. Joseph, F. Salvatore, P. Astier, Caroline Poulsen, Domizia Orestano, Mikhail Kirsanov, R. Cousins, M. Mezzetto, M. Contalbrigo, D. Autiero, R. Petti, Stefano Lacaprara, Marco Laveder, Kai Zuber, Fergus Wilson, S.N. Tovey, J.-M. Vieira, J. M. Levy, Sergey A. Kulagin, A.M. Scott, A. Sconza, Yu. Nefedov, L. Vacavant, L. La Rotonda, Frédéric Juget, S. R. Mishra, Chiara Roda, E. Pennacchio, O.L. Klimov, H. Degaudenzi, G. J. Feldman, Fr Pastore, N. Hyett, D. Pollmann, G. F. Moorhead, D. Geppert, Luca Rebuffi, P. Riemann, Artem Chukanov, V. V. Lyubushkin, E. do Couto e Silva, P.W. Cattaneo, Ante Ljubičić, Didier Ferrere, Kevin Varvell, Barry Blumenfeld, Alexey Krasnoperov, J. Kokkonen, M. Baldo-Ceolin, M. Banner, H. Duyang, C. Conta, C. Nguyen-Mau, T. Del Prete, B. Schmidt, Sergei Gninenko, J. Dumarchez, A. Grant, H. Pessard, A. Godley, P. Nedelec, Valerio Vercesi, M. Veltri, Dmitry V. Naumov, G. Conforto, J. Long, Claus Gößling, Vyacheslav Valuev, J. Libo, Malcolm Ellis, F. Vannucci, Alexander Toropin, L. S. Peak, E. Tsesmelis, Caren Hagner, T. Schmidt, P. Zuccon, A. Kovzelev, Antonio Bueno, J. Bouchez, O. Samoylov, J.J. Gómez-Cadenas, A. Lupi, A. Placci, D. Steele, A. De Santo, L. Linssen, Marco Fraternali, Sergey Alekhin, V. Flaminio, F. J. P. Soler, F.V. Weber, T. Vinogradova, André Rubbia, E. Iacopini, Vincenzo Cavasinni, A.-M. Touchard, A. Polyarush, Achim Geiser, J. Gosset, D. Gibin, Q. Wu, U. Stiegler, G. Bassompierre, J. Rico, S. Boyd, B. Lakić, G. N. Taylor, J.M. Gaillard, J-P. Meyer, L. Camilleri, L.J. Winton, J. Ulrichs, D. Sillou, G. Sozzi, A. Guglielmi, I. Bird, X.C. Tian, Nathalie Besson, G. Vidal-Sitjes, Michel Gouanère, F. Martelli, N. Kent, A. Letessier-Selvon, Giacomo Polesello, M. Tareb-Reyes, Orestano, Domizia, National Science Foundation (US), Alfred P. Sloan Foundation, Australian Research Council, Federal Ministry of Education and Research (Germany), 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 Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and NOMAD

Subjects
Nuclear and High Energy Physics, Strange quark, Particle physics, Charm production, strange quark content of the nucleon, dimuon charm production, FOS: Physical sciences, Strange quark content of the nucleon, Dimuon charm production, Neutrino interactions, 01 natural sciences, Charm quark, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Charm (quantum number), 010306 general physics, Charged current, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Física, Deep inelastic scattering, 3. Good health, Neutrino, Nucleon, Particle Physics - Experiment
Abstract

We present our new measurement of the cross-section for charm dimuon production in neutrino iron interactions based upon the full statistics collected by the NOMAD experiment. After background subtraction we observe 15 344 charm dimuon events, providing the largest sample currently available. The analysis exploits the large inclusive charged current sample - about 9 x 10(6) events after all analysis cuts - and the high resolution NOMAD detector to constrain the total systematic uncertainty on the ratio of charm dimuon to inclusive Charged Current (CC) cross-sections to similar to 2%. We also perform a fit to the NOMAD data to extract the charm production parameters and the strange quark sea content of the nucleon within the NLO QCD approximation. We obtain a value of m(c)(m(c)) = 1.159 +/- 0.075 GeV/c(2) for the running mass of the charm quark in the (MS) over bar scheme and a strange quark sea suppression factor of kappa(s) = 0.591 +/- 0.019 at Q(2) = 20 GeV2/c(2)., We extend our grateful appreciations to the CERN SPS staff for the magnificent performance of the neutrino beam. The experiment was supported by the following agencies: ARC and DIISR of Australia, IN2P3 and CEA of France, BMBF of Germany, INFN of Italy, JINR and INR of Russia, FNSRS of Switzerland, DOE, NSF, Sloan, and Cottrell Foundations of USA, and VP Research Office of the University of South Carolina. This work was partially supported by the University of South Carolina, by the DOE grant DE-FG02-95ER40910, by the Russian Federal grant 02.740.11.5220 and MK-432.2013.2, and JINR grant 13-201-01.

Published
2013

15. A Search for Single Photon Events in Neutrino Interactions

Author

C. Joseph, F. Salvatore, D. Geppert, P.W. Cattaneo, Ante Ljubičić, Valerio Vercesi, Dmitry V. Naumov, Marco Laveder, Th. Stolarczyk, J-P. Meyer, Caroline Poulsen, A.M. Scott, K. Benslama, E. Pennacchio, N. Hyett, Marco Fraternali, Luca Rebuffi, D. Pollmann, J. A. Hernando, L.J. Winton, A. Lanza, Artem Chukanov, M. E. Sevior, J. Ulrichs, Kevin Varvell, J. Kokkonen, M. T. Tran, J. Long, M. Mezzetto, Q. Wu, O.L. Klimov, J.-P. Mendiburu, E. Tsesmelis, Caren Hagner, Kai Zuber, G. Sozzi, U. Stiegler, Alexey Krasnoperov, A.-M. Touchard, A. Cervera-Villanueva, K. Schahmaneche, C.T. Kullenberg, P. Hurst, T. Schmidt, E. Gangler, A. Grant, H. Pessard, P. Nedelec, Roberto Ferrari, L. Di Lella, H. Degaudenzi, M. Baldo-Ceolin, M. Banner, G. J. Feldman, G. F. Moorhead, Malcolm Ellis, A. Kovzelev, M. Valdata-Nappi, Didier Ferrere, J.J. Gómez-Cadenas, V. Flaminio, Mikhail Kirsanov, R. Cousins, F. J. P. Soler, Alessandro Cardini, Yu. Nefedov, L. Vacavant, J.-M. Vieira, Alexander Toropin, L. S. Peak, C. Lachaud, J.M. Gaillard, T. Weisse, F. Bobisut, J.J. Kim, Giacomo Graziani, A. Letessier-Selvon, J. Gosset, Sergei Gninenko, Giacomo Polesello, E. do Couto e Silva, André Rubbia, G. Bassompierre, Bruce Yabsley, X. Méchain, Antonio Bueno, M. Tareb-Reyes, T. Vinogradova, D. Gibin, G. Collazuol, Mario Stipčević, A. Placci, R. Petti, R. Challis, E. Iacopini, A. Godley, A. Polyarush, A. De Santo, S.A. Bunyatov, S. Boyd, J. Dumarchez, Vyacheslav Valuev, Achim Geiser, Vincenzo Cavasinni, B. Lakić, G. N. Taylor, Michel Gouanère, C. Conta, B. Schmidt, J. Bouchez, O. Samoylov, F. Martelli, M. Veltri, F. Vannucci, M.B. Seaton, Claus Gößling, G. Conforto, N. Kent, A. Lupi, V. V. Lyubushkin, V. Tereshchenko, A. Baldisseri, D. Steele, Barry Blumenfeld, Domizia Orestano, P. Zuccon, G. Vidal-Sitjes, Drew Dimmery, M. Contalbrigo, A. Marchionni, J. M. Levy, Sergey A. Kulagin, J. Rico, A. Sconza, Frédéric Juget, Chiara Roda, L. La Rotonda, S. R. Mishra, Stefano Lacaprara, Fergus Wilson, P. Riemann, B. A. Popov, L. Camilleri, S.N. Tovey, I. Bird, X.C. Tian, Fr Pastore, L. Linssen, Sergey Alekhin, F.V. Weber, C. Nguyen-Mau, T. Del Prete, P. Astier, D. Autiero, D. Sillou, A. Guglielmi, Nathalie Besson, H. Zaccone, 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 Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), APC - Neutrinos, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, NOMAD, Kullenberg, Ct, Mishra, Sr, Dimmery, D, Tian, Xc, Autiero, D, Gninenko, S, Rubbia, A, Alekhin, S, Astier, R, Baldisseri, A, Baldo Ceolin, M, Banner, M, Bassompierre, G, Benslama, K, Besson, N, Bird, I, Blumenfeld, B, Bobisut, F, Bouchez, J, Boyd, S, Bueno, A, Bunyatov, S, Camilleri, L, Cardini, A, Cattaneo, Pw, Cavasinni, V, Cervera Villanueva, A, Challis, R, Chukanov, A, Collazuol, G, Conforto, G, Conta, C, Contalbrigo, M, Cousins, R, Degaudenzi, H, De Santo, A, Del Prete, T, Di Lella, L, Silva, Ede, Dumarchez, J, Ellis, M, Feldman, Gj, Ferrari, R, Ferrere, D, Flaminio, V, Fraternali, M, Gaillard, Jm, Gangler, E, Geiser, A, Geppert, D, Gibin, D, Godley, A, Gomez Cadenas, Jj, Gosset, J, Gossling, C, Gouanere, M, Grant, A, Graziani, G, Guglielmi, A, Hagner, C, Hernando, J, Hurst, P, Hyett, N, Iacopini, E, Joseph, C, Juget, F, Kent, N, Klimov, O, Kokkonen, J, Kovzelev, A, Krasnoperov, A, Kim, Jj, Kirsanov, M, Kulagin, S, Lacaprara, S, Lachaud, C, Lakic, B, Lanza, A, La Rotonda, L, Laveder, M, Letessier Selvon, A, Levy, Jm, Ling, J, Linssen, L, Ljubicic, A, Long, J, Lupi, A, Lyubushkin, V, Marchionni, A, Martelli, F, Mechain, X, Mendiburu, Jp, Meyer, Jp, Mezzetto, M, Moorhead, Cf, Naumov, D, Nedelec, R, Nefedov, Y, Nguyen Mau, C, Orestano, Domizia, Pastore, F, Peak, L, Pennacchio, E, Pessard, H, Petti, R, Placci, A, Polesello, G, Pollmann, D, Polyarush, A, Poulsen, C, Popov, B, Rebuffi, L, Rico, J, Riemann, P, Roda, C, Salvatore, F, Samoylov, O, Schahmaneche, K, Schmidt, B, Schmidt, T, Sconza, A, Scott, Am, Seaton, Mb, Sevior, M, Sillou, D, Soler, Fjr, Sozzi, G, Steele, D, Stiegler, U, Stipcevic, M, Stolarczyk, T, Tareb Reyes, M, Taylor, Gn, Tereshchenko, V, Toropin, A, Touchard, Am, Tovey, Sn, Tran, Mt, Tsesmelis, E, Ulrichs, J, Vacavant, L, Valdata Nappi, M, Valuev, V, Vannucci, F, Varvell, Ke, Veltri, M, Vercesi, V, Vidal Sitjes, G, Vieira, Jm, Vinogradova, T, Weber, Fv, Weissee, T, Wilson, Ff, Winton, Lj, Wu, Q, Yabsley, Bd, Zaccone, H, Zuber, K, Zuccon, R., Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Particle physics, Photon, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, MiniBooNE, Neutral current, High Energy Physics - Experiment (hep-ex), Pion, High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, Neutrino, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Coherent, Single photon, 010306 general physics, Charged current, Physics, 010308 nuclear & particles physics, Física, Deep inelastic scattering, single photon, neutrino, neutral current, coherent, pion, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics::Experiment, Event (particle physics), Particle Physics - Experiment
Abstract

We present a search for neutrino induced events containing a single, exclusive photon using data from the NOMAD experiment at the CERN SPS where the average energy of the neutrino flux is ≃25 GeV. The search is motivated by an excess of electron-like events in the 200-475 MeV energy region as reported by the MiniBooNE experiment. In NOMAD, photons are identified via their conversion to e + e - in an active target embedded in a magnetic field. The background to the single photon signal is dominated by the asymmetric decay of neutral pions produced either in a coherent neutrino-nucleus interaction, or in a neutrino-nucleon neutral current deep inelastic scattering, or in an interaction occurring outside the fiducial volume. All three backgrounds are determined in situ using control data samples prior to opening the 'signal-box'. In the signal region, we observe 155 events with a predicted background of 129.2±8.5±3.3. We interpret this as null evidence for excess of single photon events, and set a limit. Assuming that the hypothetical single photon has a momentum distribution similar to that of a photon from the coherent π 0 decay, the measurement yields an upper limit on single photon events, Physics Letters B, 706 (4-5), ISSN:0370-2693, ISSN:0031-9163, ISSN:1873-2445

Published
2012

16. A study of a second level track trigger for ATLAS

Author

S. N. Tovey, A. Gheorghe, B. Lisowski, Steinar Stapnes, A. Reichold, Xin Wu, G. N. Taylor, A. R. Weidberg, R. Spiwoks, J. Teiger, R.J. Hawkings, Alan Poppleton, D. J. Munday, R.K. Bock, P. Lubrano, G. F. Moorhead, Allan G Clark, W. Krischer, Claus Gössling, Paola Scampoli, R. Bonino, K. Borer, E. Tsesmelis, Michael Andrew Parker, and S. J. Bates

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Calorimeter (particle physics), Physics::Instrumentation and Detectors, Track (disk drive), Monte Carlo method, Semiconductor detector, law.invention, medicine.anatomical_structure, law, Atlas (anatomy), medicine, High Energy Physics::Experiment, Collider, Instrumentation, Energy (signal processing), Simulation
Abstract

This paper discusses some of the problems of triggering at a high energy, high luminosity pp collider. A suggested second level track trigger for the ATLAS detector is described, based on hit information from a silicon tracker. Detailed Monte Carlo simulations have been performed to assess the performance of the trigger in accepting electrons and in rejecting the QCD jets that would fake electrons in the first level calorimeter trigger. Studies of the feasibility of implementing such a trigger are also presented.

Published
1993

17. Measurement of the gluon structure function from direct photon data at the CERN p collider

Author

S. Grünendahl, Francesca Nessi-Tedaldi, A. Cravero, Julius Hrivnac, C. Onions, Steinar Stapnes, P. Petroff, V. Sondermann, R. S. DeWolf, P. Bonamy, R. Spiwoks, S. L. Singh, Klaus Peter Pretzl, L. Müller, Gary F. Egan, M. Curatolo, G. Unal, Michel Lefebvre, M. Bourliaud, Paola Scampoli, Marco Fraternali, D. J. Munday, H. Zaccone, Laura Perini, Marzio Nessi, Giovanna Ambrosini, Adele Rimoldi, Michael Andrew Parker, L. Mandelli, B. Esposito, M. Pepe, Darien Wood, J.-M. Gaillard, D. Buskulic, K. Jacobs, V. G. Goggi, J. Schacher, Giacomo Polesello, J. P. Repellin, F. Tondini, S. N. Tovey, E. Tsesmelis, P. Lubrano, L. Linssen, J.M. Pentney, P. Bareyre, Andrea Dell'Acqua, P. S. Wells, E. Iacopini, J-P. Meyer, Chariclia Petridou, D. Cavalli, H. Hufnagel, H. Plothow-Besch, S. Lami, E. Hugentobler, Giovanni Carboni, Andrea Federspiel, N. Kurz, A. R. Weidberg, Vincenzo Cavasinni, S. A. Wotton, K. Hultqvist, Paolo Lariccia, K. Hara, M. Primavera, M. Valdata-Nappi, Y. Ducros, L. DiLella, F. Pastore, M. Punturo, A. Zylberstejn, Sten Hellman, Peter Jenni, J. Alitti, Marcello Mazzanti, K. Borer, R. Ansari, Roberto Ferrari, Massimiliano F. Sacchi, C. Conta, J. C. Chollet, G. Blaylock, B. Merkel, P. Cenci, Luca Cozzi, Louis Fayard, I.A. Bertram, E. Pennacchio, Alan Poppleton, Daniel Froidevaux, Kevin Einsweiler, K. Meier, Livio Mapelli, Cinzia Talamonti, L. Malgeri, T. Pal, D. Autiero, T. DelPrete, G. Parrour, Claus Gössling, T. O. White, V. Simak, Valerio Vercesi, F. Gianotti, C. Magneville, Michele Livan, B. Schmidt, F. Costantini, E. E. Kluge, M. Morganti, O. Gildemeister, G. Fumagalli, G. Costa, M. Moniez, J. Incandela, and R. Moning

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Photon, Luminosity (scattering theory), Scattering, Deep inelastic scattering, Photon structure function, law.invention, Gluon, Nuclear physics, law, High Energy Physics::Experiment, Nuclear Experiment, Collider
Abstract

A measurement of the gluon structure fusion using direct photon events observed with the UA2 detector in p p collisions at √ s =630 GeV is presented. The x -range covered by this analysis is between 0.049 and 0.207 and the Q 2 range is between 280 GeV 2 and 3670 GeV 2 . The data sample corresponds to an integrated luminosity of 7.14 pb −1 . The results are found to be in good agreement with the gluon distributions measured in deep inelastic scattering experiments extrapolated to the UA2 Q 2 values.

Published
1993

18. Experimental limit on the decay W±→π±γ at the CERN > collider

Author

Roberto Ferrari, J. C. Chollet, V. Simak, Steinar Stapnes, R. S. DeWolf, D. J. Munday, Valerio Vercesi, H. Plothow-Besch, F. Gianotti, Michele Livan, Andrea Federspiel, Paolo Lariccia, M. Morganti, J-P. Meyer, Chariclia Petridou, F. Tondini, Julius Hrivnac, R. Ansari, P. Bareyre, Michel Lefebvre, M. Bourliaud, Paola Scampoli, Marco Fraternali, Massimiliano F. Sacchi, H. Zaccone, B. Schmidt, M. Primavera, A. Zylberstejn, M. Moniez, G. Parrour, V. G. Goggi, M. Pepe, C. Magneville, H. Hufnagel, E. Tsesmelis, F. Costantini, P. Bonamy, M. Curatolo, B. Merkel, Alan Poppleton, Livio Mapelli, S. Grünendahl, J.M. Pentney, E. Hugentobler, Marcello Mazzanti, T. DelPrete, M. Valdata-Nappi, J. M. Gaillard, Giovanna Ambrosini, O. Gildemeister, K. Hara, G. Blaylock, M. Punturo, S. A. Wotton, K. Hultqvist, J. Schacher, Klaus Peter Pretzl, V. Sondermann, G. Polesello, Louis Fayard, S. L. Singh, C. Onions, P. Petroff, Michael Andrew Parker, L. DiLella, J. Alitti, L. Müller, Gary F. Egan, Laura Perini, J. Incandela, P. S. Wells, Karl Jakobs, Giovanni Carboni, Francesca Nessi-Tedaldi, D. Cavalli, Adele Rimoldi, Peter Jenni, Daniel Froidevaux, Darien Wood, P. Cenci, G. Fumagalli, Marzio Nessi, J. P. Repellin, A. Cravero, E. E. Kluge, R. Spiwoks, D. Autiero, K. Meier, G. Costa, R. Moning, F. Pastore, T. Pal, N. Kurz, G. Unal, C. Conta, Luca Cozzi, E. Iacopini, B. Esposito, D. Buskulic, Vincenzo Cavasinni, I.A. Bertram, Y. Ducros, P. Lubrano, L. Linssen, Sten Hellman, E. Pennacchio, K. Borer, L. Mandelli, S. Lami, A. Dell'Acqua, Claus Gössling, Cinzia Talamonti, T. O. White, A. R. Weidberg, Kevin Einsweiler, and S. N. Tovey

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Meson, Branching fraction, Hadron, Elementary particle, law.invention, Nuclear physics, Particle decay, Pion, law, Collider
Abstract

Results are given on a search for the decay W±→π±γ with the UA2 detector in pp collisions at √s=630 GeV. No signal for such a process is observed and upper limits on the ration R=Γ(W±→π±γ)/Γ(W±→e±v)

Published
1992

19. Direct measurement of the W-γ coupling at the CERN p Collider

Author

Francesca Nessi-Tedaldi, I.A. Bertram, P. Lubrano, A. Cravero, Gary F. Egan, E. Iacopini, L. Linssen, Vincenzo Cavasinni, M. Punturo, T. Pal, J. Alitti, B. Schmidt, P. Cenci, Claus Gössling, C. Onions, S. L. Singh, S. A. Wotton, K. Hultqvist, L. DiLella, P. Petroff, M. Bourliand, Karl Jakobs, Peter Jenni, L. Mandelli, P. Bonamy, R. Spiwoks, E. Tsesmelis, T. DelPrete, Michel Lefebvre, Paola Scampoli, Alan Poppleton, Marco Fraternali, Livio Mapelli, G. Unal, M. Curatolo, J-P. Meyer, Chariclia Petridou, H. Plothow-Besch, E. Pennacchio, Marzio Nessi, A. Dell'Acqua, Sten Hellman, B. Esposito, D. Buskulic, F. Costantini, Klaus Peter Pretzl, E. Hugentobler, J. M. Gaillard, V. Simak, J. Schacher, M. Valdata-Nappi, E. E. Kluge, K. Borer, S. Lami, Laura Perini, Roberto Ferrari, O. Gildemeister, Marcello Mazzanti, Andrea Federspiel, N. Kurz, G. Blaylock, J. C. Chollet, Paolo Lariccia, Julius Hrivnac, M. Pepe, S. Grünendahl, Valerio Vercesi, G. Parrour, G. Polesello, D. Cavalli, Adele Rimoldi, F. Gianotti, Y. Ducros, J. P. Repellin, Michael Andrew Parker, M. Primavera, Darien Wood, H. Zaccone, Daniel Froidevaux, A. Zylberstejn, Giovanna Ambrosini, F. Tondini, V. Sondermann, G. Fumagalli, L. Müller, B. Merkel, K. Meier, P. Bareyre, R. Ansari, C. Conta, Massimiliano F. Sacchi, G. Costa, Louis Fayard, M. Morganti, H. Hufnagel, Luca Cozzi, Giovanni Carboni, V. G. Goggi, F. Pastore, J.M. Pentney, K. Hara, Steinar Stapnes, R. S. DeWolf, P. S. Wells, D. J. Munday, D. Autiero, M. Moniez, S. N. Tovey, A. R. Weidberg, Kevin Einsweiler, Cinzia Talamonti, J. Incandela, T. O. White, R. Moning, Michele Livan, and C. Magneville

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Muon, Anomalous magnetic dipole moment, Coupling (probability), Standard Model, law.invention, Nuclear physics, law, Quadrupole, Collider, Magnetic dipole
Abstract

The process pp→evγ+X is studied as √s=630 GeV. The observed signal is used to extract a direct measurement of the parameters κ and λ which define the magnetic dipole and electric quadrupole moments of the W boson and therefore the WWγ coupling. We find κ=1+2.6−2.2 and λ=0+1.7−1.8 and their 95% confidence limits −3.5

Published
1992

20. A measurement of the W and Z production cross sections and a determination of Γw at the CERN [ovbar|p]p collider

Author

E. Tsesmelis, E. Pennacchio, J. Incandela, E. Hugentobler, P. Lubrano, M. Valdata-Nappi, A. Dell'Acqua, L. Linssen, A. R. Weidberg, I.A. Bertram, H. Hufnagel, Daniel Froidevaux, Roberto Ferrari, M. Punturo, K. Meier, R. Moning, C. Magneville, J. Alitti, M. Moniez, B. Schmidt, J. C. Chollet, Kevin Einsweiler, V. G. Goggi, Francesca Nessi-Tedaldi, G. Amrosini, Steinar Stapnes, J.M. Pentney, A. Cravero, F. Costantini, Alan Poppleton, M. Morganti, Marcello Mazzanti, R. S. DeWolf, Michel Lefebvre, M. Bourliaud, Paola Scampoli, Livio Mapelli, G. Blaylock, Marco Fraternali, J. Schacher, G. Costa, J. Hřiv'ač, Marzio Nessi, Y. Ducros, D. J. Munday, R. Spiwoks, S. N. Tovey, G. Parrour, K. Hara, Michele Livan, Laura Perini, Giovanni Carboni, H. Plothow-Besch, E. Iacopini, G. Unal, Cinzia Talamonti, C. Onions, T. Pal, O. Gildemeister, S. L. Singh, J-P. Meyer, N. Kurz, Vincenzo Cavasinni, Andrea Federspiel, P. Petroff, P. S. Wells, Chariclia Petridou, G. Polesello, Paolo Lariccia, J. P. Repellin, F. Pastore, Sten Hellman, B. Esposito, D. Buskulic, Karl Jakobs, G. Fumagalli, D. Cavalli, Adele Rimoldi, T. O. White, M. Primavera, L. Mandelli, S. Lami, Claus Gössling, K. Borer, A. Zylberstejn, F. Tondini, P. Bareyre, B. Merkel, E. E. Kluge, M. Curatolo, S. A. Wotton, D. Autiero, K. Hultqvist, J. M. Gaillard, L. DiLella, Peter Jenni, Michael Andrew Parker, Darien Wood, C. Conta, Luca Cozzi, Louis Fayard, R. Ansari, Gary F. Egan, Massimiliano F. Sacchi, P. Cenci, S. Grünendahl, M. Pepe, V. Sondermann, L. Müller, T. DelPrete, V. Simak, Valerio Vercesi, F. Gianotti, H. Zaccone, P. Bonamy, Klaus Peter Pretzl, J., Alitti, G., Ambrosini, R., Ansari, D., Autiero, P., Bareyre, I. A., Bertram, G., Blaylock, P., Bonamy, K., Borer, M., Bourliaud, D., Buskulic, G., Carboni, D., Cavalli, V., Cavasinni, P., Cenci, J. C., Chollet, C., Conta, G., Costa, F., Costantini, L., Cozzi, A., Cravero, M., Curatolo, A., Dellacqua, T., Delprete, R. S., Dewolf, L., Dilella, Y., Ducro, G. F., Egan, K. F., Einsweiler, B., Esposito, L., Fayard, A., Federspiel, R., Ferrari, M., Fraternali, D., Froidevaux, G., Fumagalli, J. M., Gaillard, F., Gainotti, O., Gildemeister, C., Gossling, V. G., Goggi, S., Grunendahl, K., Hara, S., Hellman, J., Hrivnac, H., Hufnagel, E., Hugentobler, K., Hultqvist, E., Iacopini, J., Incandela, K., Jakob, P., Jenni, E. E., Kluge, N., Kurz, S., Lami, P., Lariccia, M., Lefebvre, L., Linssen, M., Livan, P., Lubrano, C., Magneville, L., Mandelli, L., Mapelli, M., Mazzanti, K., Meier, B., Merkel, J. P., Meyer, M., Moniez, R., Moning, M., Morganti, L., Muller, D. J., Munday, M., Nessi, F., Nessitedaldi, C., Onion, T., Pal, M. A., Parker, G., Parrour, F., Pastore, E., Pennacchio, J. M., Pentney, M., Pepe, L., Perini, C., Petridou, P., Petroff, H., Plothowbesch, G., Polesello, A., Poppleton, K., Pretzl, M., Primavera, M., Punturo, J. P., Repellin, A., Rimoldi, M., Sacchi, Scampoli, Paola, J., Schacher, B., Schmidt, V., Simak, S. L., Singh, V., Sondermann, R., Spiwok, S., Stapne, C., Talamonti, F., Tondini, S. N., Tovey, E., Tsesmeli, G., Unal, M., Valdatanappi, V., Vercesi, A. R., Weidberg, P. S., Well, T. O., White, D. R., Wood, S. A., Wotton, H., Zaccone, and A., Zylberstejn

Subjects
Physics, Nuclear and High Energy Physics, Top quark, Particle physics, Branching fraction, Elementary particle, Nuclear physics, Particle decay, Pair production, Antimatter, UA2 EXPERIMENT, SCINTILLATING FIBER DETECTOR, B' QUARKS, Particle Physics - Experiment, Lepton, Boson
Abstract

The decays W --> ev and Z --> e+e- are studied in ppBAR collisions at square-root s = 630 GeV. The products of production cross section and branching ratio are measured as sigma(W)e = 682 +/- 12 +/- 40 pb and sigma(Z)e = 65.6 +/- 4.0 +/- 3.8 pb. The results are in good agreement with O (alpha(s)2) calculations of the production cross sections. Many systematic effects cancel in the ratio, R = 10.4 +/- 0.6(0.7) +/- 0.3, which can be used to give an indirect measurement of the total width of the W boson: GAMMA(W) = 2.10 +/- 0.13 +/- 0.09 GeV. The width gives a limit on the top quark mass, m(top) > 53 GeV (95% CL), which is independent of the top decay mode.

Published
1992

21. A search for scalar leptoquarks at the CERN collider

Author

D. Cavalli, Adele Rimoldi, M. Primavera, A. Zylberstejn, B. Merkel, V. G. Goggi, V. Simak, H. Plothow-Besch, J.M. Pentney, I.A. Bertram, Alan Poppleton, E. E. Kluge, G. Costa, S. Grünendahl, Cinzia Talamonti, Laura Perini, Livio Mapelli, Andrea Federspiel, T. Pal, S. A. Wotton, G. Parrour, K. Hultqvist, K. Hara, Francesca Nessi-Tedaldi, Michael Andrew Parker, Sten Hellman, L. DiLella, E. Iacopini, V. Sondermann, Paolo Lariccia, Claus Gössling, Michele Livan, L. Mandelli, J. Incandela, L. Müller, Darien Wood, Valerio Vercesi, A. Cravero, Louis Fayard, K. Borer, Peter Jenni, J-P. Meyer, Chariclia Petridou, T. O. White, F. Gianotti, J. P. Repellin, P. Lubrano, Steinar Stapnes, Vincenzo Cavasinni, R. S. DeWolf, L. Linssen, Roberto Ferrari, M. Peper, Daniel Froidevaux, D. Autiero, Gary F. Egan, A. R. Weidberg, R. Moning, P. Cenci, Giovanni Carboni, J. C. Chollet, M. Punturo, Marcello Mazzanti, J. Schacher, M. Moniez, H. Hufnagel, D. J. Munday, S. Lami, G. Blaylock, J. Alitti, K. Meier, Kevin Einsweiler, E. Tsesmelis, C. Conta, T. DelPrete, P. Bonamy, E. Hugentobler, C. Magneville, Marzio Nessi, B. Schmidt, M. Valdata-Nappi, R. Spiwoks, Luca Cozzi, F. Tondini, F. Pastore, P. S. Wells, P. Bareyre, S. N. Tovey, H. Zaccone, G. Unal, M. Morganti, B. Esposito, Klaus Peter Pretzl, D. Buskulic, Y. Ducros, Giovanna Ambrosini, N. Kurz, R. Ansari, E. Pennacchio, Massimiliano F. Sacchi, F. Costantini, A. Dell'Acqua, O. Gildemeister, G. Polesello, G. Fumagalli, M. Curatolo, J. M. Gaillard, S. L. Singh, Michel Lefebvre, M. Bourliaud, Paola Scampoli, Marco Fraternali, J. Hřivnáč, C. Onions, P. Petroff, and Karl Jakobs

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Physics::Instrumentation and Detectors, Branching fraction, High Energy Physics::Phenomenology, Scalar (physics), Electron, Nuclear physics, Pair production, High Energy Physics::Experiment, Leptoquark, Electron neutrino
Abstract

A search has been made for scalar leptoquark pair production with the upgraded UA2 detector at the CERN p p Collider at √s = 630 GeV, investigating decays of the leptoquark into a quark and either an electron or an electron neutrino. From an event sample corresponding to an integrated luminosity of 13 pb−1 a lower limit has been determined for the mass of first generation leptoquarks, yielding 67 GeV (95% CL) for a scalar leptoquark decaying with a 50% branching ratio into a quark and an electron.

Published
1992

22. Study of electron pair production below the Z mass at the CERN p collider

Author

O. Gildemeister, J. Incandela, Sten Hellman, G. Polesello, J. Schacher, J-P. Meyer, C. Onions, Chariclia Petridou, P. Petroff, Karl Jakobs, Giovanna Ambrosini, K. Borer, G. Fumagalli, E. Tsesmelis, R. Moning, E. Hugentobler, G. Costa, G. Parrour, Gary F. Egan, M. Valdata-Nappi, H. Hufnagel, M. Moniez, Julius Hrivnac, M. Curatolo, Michele Livan, M. Pepe, S. N. Tovey, V. G. Goggi, P. Bonamy, J. M. Gaillard, J.M. Pentney, Cinzia Talamonti, Marcello Mazzanti, P. S. Wells, E. Iacopini, Michael Andrew Parker, V. Simak, K. Hara, I.A. Bertram, Darien Wood, G. Blaylock, L. Mandelli, Stefan Gruenendahl, Giovanni Carboni, C. Conta, V. Sondermann, Vincenzo Cavasinni, F. Tondini, Valerio Vercesi, F. Gianotti, Laura Perini, T. O. White, L. Müller, M. Punturo, S. L. Singh, Luca Cozzi, T. Pal, F. Pastore, J. Alitti, B. Schmidt, P. Bareyre, T. Del Prete, Michel Lefebvre, M. Bourliaud, Daniel Froidevaux, H. Zaccone, Paola Scampoli, J. P. Repellin, Marco Fraternali, N. Kurz, Steinar Stapnes, R. S. DeWolf, A. R. Weidberg, K. Meier, C. Magneville, F. Costantini, Klaus Peter Pretzl, D. J. Munday, Kevin Einsweiler, D. Cavalli, H. Plothow-Besch, Andrea Federspiel, Paolo Lariccia, Louis Fayard, E. Pennacchio, A. Dell'Acqua, R. Ansari, Massimiliano F. Sacchi, Y. Ducros, Francesca Nessi-Tedaldi, M. Primavera, Claus Gössling, A. Cravero, A. Zylberstejn, B. Merkel, P. Cenci, D. Auterio, Adele Rimoldi, L. Di Lella, S. Lami, S. A. Wotton, K. Hultqvist, Peter Jenni, Roberto Ferrari, J. C. Chollet, R. Spiwoks, G. Unal, B. Esposito, D. Buskulic, E. E. Kluge, M. Morganti, Marzio Nessi, Alan Poppleton, Livio Mapelli, P. Lubrano, L. Linssen, J., Alitti, G., Ambrosini, R., Ansari, D., Autiero, P., Bareyre, I. A., Bertram, G., Blaylock, P., Bonamy, K., Borer, M., Bourliaud, D., Buskulic, G., Carboni, D., Cavalli, V., Cavasinni, P., Cenci, J. C., Chollet, C., Conta, G., Costa, F., Costantini, L., Cozzi, A., Cravero, M., Curatolo, A., Dellacqua, T., Delprete, R. S., Dewolf, L., Dilella, Y., Ducro, G. F., Egan, K. F., Einsweiler, B., Esposito, L., Fayard, A., Federspiel, R., Ferrari, M., Fraternali, D., Froidevaux, G., Fumagalli, J. M., Gaillard, F., Gianotti, O., Gildemeister, C., Gossling, V. G., Goggi, S., Grunendahl, K., Hara, S., Hellman, J., Hrivnac, H., Hufnagel, E., Hugentobler, K., Hultqvist, E., Iacopini, J., Incandela, K., Jakob, P., Jenni, E. E., Kluge, N., Kurz, S., Lami, P., Lariccia, M., Lefebvre, L., Linssen, M., Livan, P., Lubrano, C., Magneville, L., Mandelli, L., Mapelli, M., Mazzanti, K., Meier, B., Merkel, J. P., Meyer, M., Moniez, R., Moning, M., Morganti, L., Muller, D. J., Munday, M., Nessi, F., Nessitedaldi, C., Onion, T., Pal, M. A., Parker, G., Parrour, F., Pastore, E., Pennacchio, J. M., Pentney, M., Pepe, L., Perini, C., Petridou, P., Petroff, H., Plothowbesch, G., Polesello, A., Poppleton, K., Pretzl, M., Primavera, M., Punturo, J. P., Repellin, A., Rimoldi, M., Sacchi, Scampoli, Paola, J., Schacher, B., Schmidt, V., Simak, S. L., Singh, V., Sondermann, R., Spiwok, S., Stapne, C., Talamonti, F., Tondini, S. N., Tovey, E., Tsesmeli, G., Unal, M., Valdatanappi, V., Vercesi, A. R., Weidberg, P. S., Well, T. O., White, D. R., Wood, S. A., Wotton, H., Zaccone, and A., Zylberstejn

Subjects
Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Electron pair, Particle physics, Large Hadron Collider, Drell–Yan process, law.invention, Nuclear physics, Cross section (physics), law, UA2 EXPERIMENT, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment, Collider, PROTON-NUCLEUS COLLISIONS, Scaling
Abstract

Results on the cross section for the production of electron pairs in ppBAR collisions at square-root s = 630 GeV are presented. The measured value is sigma = 405 +/- 51 (syst.) +/- 84 (syst.) pb, in the invariant mass interval 10 < m < 70 GeV. The results are compared to recent theoretical calculations which include O(alpha(s)2) QCD contributions. The comparison of these data with those of lower energy experiments show approximate scaling as a function of the variable square-root tau = m/ square-root s.

Published
1992

23. A measurement of coherent neutral pion production in neutrino neutral current interactions in the NOMAD experiment

Author

Marco Fraternali, A. Placci, J. A. Hernando, M. Mezzetto, A. De Santo, Alexander Toropin, Kai Zuber, G. Bassompierre, S. Boyd, B. Lakić, G. N. Taylor, L. S. Peak, O.L. Klimov, V. Flaminio, F. J. P. Soler, J. Long, K. Benslama, T. Vinogradova, F. Bobisut, Antonio Bueno, A.-M. Touchard, A. Cervera-Villanueva, Kevin Varvell, L. Camilleri, Vyacheslav Valuev, J.M. Gaillard, C. Lachaud, Giacomo Graziani, V. V. Lyubushkin, M. T. Tran, D. Steele, Nathalie Besson, E. Gangler, Mikhail Kirsanov, R. Cousins, Barry Blumenfeld, A.M. Scott, A. Grant, H. Pessard, P. Nedelec, T. Weisse, J. Kokkonen, Malcolm Ellis, R. Challis, J.-P. Mendiburu, Q. Wu, S.A. Bunyatov, A. Marchionni, J.-M. Vieira, U. Stiegler, E. Pennacchio, I. Bird, D. Geppert, J. Rico, P.W. Cattaneo, Ante Ljubičić, F. Vannucci, E. do Couto e Silva, N. Hyett, R. Petti, D. Pollmann, P. Astier, J. Bouchez, L. Linssen, J.J. Gómez-Cadenas, André Rubbia, O. Samoylov, Alessandro Cardini, X.C. Tian, A. Baldisseri, Sergey Alekhin, Roberto Ferrari, V. Tereshchenko, F. Salvatore, B. A. Popov, Alexey Krasnoperov, D. Autiero, D. Sillou, Yu. Nefedov, L. Vacavant, F.V. Weber, Frédéric Juget, Chiara Roda, P. Zuccon, J. Gosset, A. Lupi, E. Iacopini, Caroline Poulsen, H. Zaccone, Luca Rebuffi, Artem Chukanov, Bruce Yabsley, Claus Gößling, X. Méchain, A. Guglielmi, D. Gibin, C. Joseph, Vincenzo Cavasinni, G. Vidal-Sitjes, M. Baldo-Ceolin, A. Polyarush, C. Conta, B. Schmidt, H. Degaudenzi, G. J. Feldman, Achim Geiser, G. F. Moorhead, G. Conforto, J. Dumarchez, Marco Laveder, Didier Ferrere, Th. Stolarczyk, M. Banner, Valerio Vercesi, Dmitry V. Naumov, M. E. Sevior, K. Schahmaneche, Sergei Gninenko, C.T. Kullenberg, P. Hurst, L. Di Lella, M. Valdata-Nappi, E. Tsesmelis, Caren Hagner, Domizia Orestano, J.J. Kim, T. Schmidt, A. Kovzelev, A. Godley, M. Contalbrigo, J. M. Levy, Sergey A. Kulagin, G. Collazuol, Mario Stipčević, M. Veltri, J-P. Meyer, L.J. Winton, A. Sconza, J. Ulrichs, M.B. Seaton, L. La Rotonda, S. R. Mishra, A. Lanza, G. Sozzi, P. Riemann, Stefano Lacaprara, Fergus Wilson, A. Letessier-Selvon, Giacomo Polesello, M. Tareb-Reyes, Michel Gouanère, F. Martelli, N. Kent, C. Nguyen-Mau, T. Del Prete, S.N. Tovey, Fr Pastore, Kullenberg, Ct, Mishra, Sr, Seaton, Mb, Kim, Jj, Tian, Xc, Scott, Am, Kirsanov, M, Petti, R, Alekhin, S, Astier, P, Autiero, D, Baldisseri, A, Baldo Ceolin, M, Banner, M, Bassompierre, G, Benslama, K, Besson, N, Bird, I, Blumenfeld, B, Bobisut, F, Bouchez, J, Boyd, S, Bueno, A, Bunyatov, S, Camilleri, L, Cardini, A, Cattaneo, Pw, Cavasinni, V, Cervera Villanueva, A, Challis, R, Chukanov, A, Collazuol, G, Conforto, G, Conta, C, Contalbrigo, M, Cousins, R, Degaudenzi, H, De Santo, A, Del Prete, T, Di Lella, L, Silva, Ede, Dumarchez, J, Ellis, M, Feldman, Gj, Ferrari, R, Ferrere, D, Flaminio, V, Fraternali, M, Gaillard, Jm, Gangler, E, Geiser, A, Geppert, D, Gibin, D, Gninenko, S, Godley, A, Gomez Cadenas, Jj, Gosset, J, Gossling, C, Gouanere, M, Grant, A, Graziani, G, Guglielmi, A, Hagner, C, Hernando, J, Hurst, P, Hyett, N, Iacopini, E, Joseph, C, Juget, F, Kent, N, Klimov, O, Kokkonen, J, Kovzelev, A, Krasnoperov, A, Kulagin, S, Lacaprara, S, Lachaud, C, Lakic, B, Lanza, A, La Rotonda, L, Laveder, M, Letessier Selvon, A, Levy, Jm, Ling, J, Linssen, L, Ljubicic, A, Long, J, Lupi, A, Lyubushkin, V, Marchionni, A, Martelli, F, Mechain, X, Mendiburu, Jp, Meyer, Jp, Mezzetto, M, Moorhead, Gf, Naumov, D, Nedelec, P, Nefedov, Y, Nguyen Mau, C, Orestano, Domizia, Pastore, F, Peak, L, Pennacchio, E, Pessard, H, Placci, A, Polesello, G, Pollmann, D, Polyarush, A, Poulsen, C, Popov, B, Rebuffi, L, Rico, J, Riemann, P, Roda, C, Rubbia, A, Salvatore, F, Samoylov, O, Schahmaneche, K, Schmidt, B, Schmidt, T, Sconza, A, Sevior, M, Sillou, D, Soler, Fjp, Sozzi, G, Steele, D, Stiegler, U, Stipcevic, M, Stolarczyk, T, Tareb Reyes, M, Taylor, Gn, Tereshchenko, V, Toropin, A, Touchard, Am, Tovey, Sn, Tran, Mt, Tsesmelis, E, Ulrichs, J, Vacavant, L, Valdata Nappi, M, Valuev, V, Vannucci, F, Varvell, Ke, Veltri, M, Vercesi, V, Vidal Sitjes, G, Vieira, Jm, Vinogradova, T, Weber, Fv, Weisse, T, Wilson, Ff, Winton, Lj, Wu, Q, Yabsley, Bd, Zaccone, H, Zuber, K, Zuccon, P., Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), 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), APC - Neutrinos, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), NOMAD, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire d'Annecy de Physique des Particules (LAPP), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Particle physics, Nuclear and High Energy Physics, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pion, Coherent pion neutrino neutral current, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Charged current, Physics, Range (particle radiation), Large Hadron Collider, Neutral current, 010308 nuclear & particles physics, Scattering, Física, Deep inelastic scattering, coherent pion, neutrino, neutral current, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment
Abstract

We present a study of exclusive neutral pion production in neutrino-nucleus Neutral Current interactions using data from the NOMAD experiment at the CERN SPS. The data correspond to $1.44 \times 10^6$ muon-neutrino Charged Current interactions in the energy range $2.5 \leq E_{\nu} \leq 300$ GeV. Neutrino events with only one visible $\pi^0$ in the final state are expected to result from two Neutral Current processes: coherent $\pi^0$ production, {\boldmath $\nu + {\cal A} \to \nu + {\cal A} + \pi^0$} and single $\pi^0$ production in neutrino-nucleon scattering. The signature of coherent $\pi^0$ production is an emergent $\pi^0$ almost collinear with the incident neutrino while $\pi^0$'s produced in neutrino-nucleon deep inelastic scattering have larger transverse momenta. In this analysis all relevant backgrounds to the coherent $\pi^0$ production signal are measured using data themselves. Having determined the backgrounds, and using the Rein-Sehgal model for the coherent $\pi^0$ production to compute the detection efficiency, we obtain {\boldmath $4630 \pm 522 (stat) \pm 426 (syst)$} corrected coherent-$\pi^0$ events with $E_{\pi^0} \geq 0.5$ GeV. We measure {\boldmath $\sigma (\nu {\cal A} \to \nu {\cal A} \pi^0) = [ 72.6 \pm 8.1(stat) \pm 6.9(syst) ] \times 10^{-40} cm^2/nucleus$}. This is the most precise measurement of the coherent $\pi^0$ production to date., Comment: 23 pages, 9 figures, accepted for publication in Phys. Lett. B

Published
2009

24. A study of quasi-elastic muon neutrino and antineutrino scattering in the NOMAD experiment

Author

V. Lyubushkin, B. Popov, J. J. Kim, L. Camilleri, J.-M. Levy, M. Mezzetto, D. Naumov, S. Alekhin, P. Astier, D. Autiero, A. Baldisseri, M. Baldo-Ceolin, M. Banner, G. Bassompierre, K. Benslama, N. Besson, I. Bird, B. Blumenfeld, F. Bobisut, J. Bouchez, S. Boyd, A. Bueno, S. Bunyatov, A. Cardini, P. W. Cattaneo, V. Cavasinni, A. Cervera-Villanueva, R. Challis, A. Chukanov, G. Collazuol, G. Conforto, C. Conta, M. Contalbrigo, R. Cousins, D. Daniels, H. Degaudenzi, T. Del Prete, A. De Santo, T. Dignan, L. Di Lella, E. do Couto e Silva, J. Dumarchez, M. Ellis, G. J. Feldman, R. Ferrari, D. Ferrère, V. Flaminio, M. Fraternali, J.-M. Gaillard, E. Gangler, A. Geiser, D. Geppert, D. Gibin, S. Gninenko, A. Godley, J.-J. Gomez-Cadenas, J. Gosset, C. Gößling, M. Gouanère, A. Grant, G. Graziani, A. Guglielmi, C. Hagner, J. Hernando, D. Hubbard, P. Hurst, N. Hyett, E. Iacopini, C. Joseph, F. Juget, N. Kent, M. Kirsanov, O. Klimov, J. Kokkonen, A. Kovzelev, A. Krasnoperov, S. Kulagin, D. Kustov, S. Lacaprara, C. Lachaud, B. Lakić, A. Lanza, L. La Rotonda, M. Laveder, A. Letessier-Selvon, J. Ling, L. Linssen, A. Ljubičić, J. Long, A. Lupi, A. Marchionni, F. Martelli, X. Méchain, J.-P. Mendiburu, J.-P. Meyer, S. R. Mishra, G. F. Moorhead, P. Nédélec, Yu. Nefedov, C. Nguyen-Mau, D. Orestano, F. Pastore, L. S. Peak, E. Pennacchio, H. Pessard, R. Petti, A. Placci, G. Polesello, D. Pollmann, A. Polyarush, C. Poulsen, L. Rebuffi, J. Rico, P. Riemann, C. Roda, A. Rubbia, F. Salvatore, O. Samoylov, K. Schahmaneche, B. Schmidt, T. Schmidt, A. Sconza, M. Seaton, M. Sevior, D. Sillou, F. J. P. Soler, G. Sozzi, D. Steele, U. Stiegler, M. Stipčević, Th. Stolarczyk, M. Tareb-Reyes, G. N. Taylor, V. Tereshchenko, A. Toropin, A.-M. Touchard, S. N. Tovey, M.-T. Tran, E. Tsesmelis, J. Ulrichs, L. Vacavant, M. Valdata-Nappi, V. Valuev, F. Vannucci, K. E. Varvell, M. Veltri, V. Vercesi, G. Vidal-Sitjes, J.-M. Vieira, T. Vinogradova, F. V. Weber, T. Weisse, F. F. Wilson, L. J. Winton, Q. Wu, B. D. Yabsley, H. Zaccone, K. Zuber, P. Zuccon, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), APC - Neutrinos, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), NOMAD, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Lyubushkin, V, Popov, B, Kim, Jj, Camilleri, L, Levy, Jm, Mezzetto, M, Naumov, D, Alekhin, S, Astier, P, Autiero, D, Baldisseri, A, Baldo Ceolin, M, Banner, M, Bassompierre, G, Benslama, K, Besson, N, Bird, I, Blumenfeld, B, Bobisut, F, Bouchez, J, Boyd, S, Bueno, A, Bunyatov, S, Cardini, A, Cattaneo, Pw, Cavasinni, V, Cervera Villanueva, A, Challis, R, Chukanov, A, Collazuol, G, Conforto, G, Conta, C, Contalbrigo, M, Cousins, R, Daniels, D, Degaudenzi, H, Del Prete, T, De Santo, A, Dignan, T, Di Lella, L, Silva, Ede, Dumarchez, J, Ellis, M, Feldman, Gj, Ferrari, R, Ferrere, D, Flaminio, V, Fraternali, M, Gaillard, Jm, Gangler, E, Geiser, A, Geppert, D, Gibin, D, Gninenko, S, Godley, A, Gomez Cadenas, Jj, Gosset, J, Gossling, C, Gouanere, M, Grant, A, Graziani, G, Guglielmi, A, Hagner, C, Hernando, J, Hubbard, D, Hurst, P, Hyett, N, Iacopini, E, Joseph, C, Juget, F, Kent, N, Kirsanov, M, Klimov, O, Kokkonen, J, Kovzelev, A, Krasnoperov, A, Kulagin, S, Kustov, D, Lacaprara, S, Lachaud, C, Lakic, B, Lanza, A, La Rotonda, L, Laveder, M, Letessier Selvon, A, Ling, J, Linssen, L, Ljubicic, A, Long, J, Lupi, A, Marchionni, A, Martelli, F, Mechain, X, Mendiburu, Jp, Meyer, Jp, Mishra, Sr, Moorhead, Gf, Nedelec, P, Nefedov, Y, Nguyen Mau, C, Orestano, Domizia, Pastore, F, Peak, L, Pennacchio, E, Pessard, H, Petti, R, Placci, A, Polesello, G, Pollmann, D, Polyarush, A, Poulsen, C, Rebuffi, L, Rico, J, Riemann, P, Roda, C, Rubbia, A, Salvatore, F, Samoylov, O, Schahmaneche, K, Schmidt, B, Schmidt, T, Sconza, A, Seaton, M, Sevior, M, Sillou, D, Soler, Fjp, Sozzi, G, Steele, D, Stiegler, U, Stipcevic, M, Stolarczyk, T, Tareb Reyes, M, Taylor, Gn, Tereshchenko, V, Toropin, A, Touchard, Am, Tovey, Sn, Tran, Mt, Tsesmelis, E, Ulrichs, J, Vacavant, L, Valdata Nappi, M, Valuev, V, Vannucci, F, Varvell, Ke, Veltri, M, Vercesi, V, Vidal Sitjes, G, Vieira, Jm, Vinogradova, T, Weber, Fv, Weisse, T, Wilson, Ff, Winton, Lj, Wu, Q, Yabsley, Bd, Zaccone, H, Zuber, K, Zuccon, P., Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Particle physics, Physics and Astronomy (miscellaneous), FOS: Physical sciences, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, MiniBooNE, High Energy Physics - Experiment (hep-ex), muon neutrino, antineutrino scattering, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Bubble chamber, Muon neutrino, Engineering (miscellaneous), Nuclear Experiment, 010306 general physics, Mass parameter, Charged current, Physics, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Física, Deuterium, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment
Abstract

We have studied the muon neutrino and antineutrino quasi-elastic (QEL) scattering reactions ($\nu_\mu n\to \mu^- p$ and $\bar{\nu}_\mu p\to \mu^+ n$) using a set of experimental data collected by the NOMAD collaboration. We have performed measurements of the cross-section of these processes on a nuclear target (mainly Carbon) normalizing it to the total $\nu_\mu$ ($\bar{\nu}_\mu$) charged current cross-section. The results for the flux averaged QEL cross-sections in the (anti)neutrino energy interval 3-100 GeV are $\sigma^{qel}_{\nu_\mu} = (0.92 \pm 0.02 (stat) \pm 0.06 (syst))\times 10^{-38} \cm^2$ and $\sigma{qel}_{\bar{\nu}_\mu} = (0.81 \pm 0.05 (stat) \pm 0.08 (syst))\times 10^{-38} \cm^2$ for neutrino and antineutrino, respectively. The axial mass parameter $M_A$ was extracted from the measured quasi-elastic neutrino cross-section. The corresponding result is $M_A = 1.05 \pm 0.02 (stat) \pm 0.06 (syst) GeV$. It is consistent with the axial mass values recalculated from the antineutrino cross-section and extracted from the pure $Q^2$ shape analysis of the high purity sample of $\nu_\mu$ quasi-elastic 2-track events, but has smaller systematic error and should be quoted as the main result of this work. Our measured $M_A$ is found to be in good agreement with the world average value obtained in previous deuterium filled bubble chamber experiments. The NOMAD measurement of $M_A$ is lower than those recently published by K2K and MiniBooNE collaborations. However, within the large errors quoted by these experiments on $M_A$, these results are compatible with the more precise NOMAD value., Comment: 26 pages, 18 figures, submitted to Eur.Phys.J.C

Published
2009

25. A determination of the strong coupling constant αs from W production at the CERN pp̄ collider

Author

T. Pal, H. Zaccone, N. Kurz, E. Iacopini, Vincenzo Cavasinni, J. Alitti, P. Lubrano, B. Meier, Giovanni Carboni, E. Tsesmelis, Claus Gössling, L. Linssen, L. Mandelli, H. Hufnagel, E. Hugentobler, M. Morganti, F. Pastore, Cinzia Talamonti, M. Valdata-Nappi, V. Simak, P. Bareyre, M. Moniez, Michael Andrew Parker, A. V. Stirling, I.A. Bertram, Daniel Froidevaux, E. Pennacchio, Darien Wood, Julius Hrivnac, Valerio Vercesi, C. Onions, T. O. White, F. Gianotti, P. Petroff, Marcello Mazzanti, F. Costantini, Karl Jakobs, P. S. Wells, A. Dell'Acqua, Louis Fayard, G. Blaylock, Michele Livan, C. Conta, Giovanna Ambrosini, T. DelPrete, H. Plothow-Besch, S. Lami, M. Punturo, G. Fumagalli, Alan Poppleton, M. Curatolo, Andrea Federspiel, Luca Cozzi, Livio Mapelli, G. Costa, R. Ansari, J. M. Gaillard, Paolo Lariccia, S. N. Tovey, Y. Ducros, Sten Hellman, Massimiliano F. Sacchi, Steinar Stapnes, J. Schacher, R. S. DeWolf, A. R. Weidberg, G. Parrour, Michel Lefebvre, M. Bourliaud, Paola Scampoli, Francesca Nessi-Tedaldi, M. Bonesini, Kevin Einsweiler, Marzio Nessi, D. J. Munday, Marco Fraternali, M. Pepe, A. Cravero, E. E. Kluge, O. Gildemeister, G. Polesello, P. Bonamy, Laura Perini, F. Tondini, S. L. Singh, D. Autiero, J. P. Repellin, Klaus Peter Pretzl, V. G. Goggi, J.M. Pentney, K. Hara, J. Incandela, C. Magneville, R. Moning, S. Grünendahl, K. Borer, G. Unal, V. Sondermann, L. Müller, B. Esposito, D. Buskulic, J-P. Meyer, Chariclia Petridou, Roberto Ferrari, J. C. Chollet, S. A. Wotton, K. Hultqvist, L. DiLella, Peter Jenni, Gary F. Egan, D. Cavalli, Adele Rimoldi, M. Primavera, A. Zylberstejn, B. Merkel, and P. Cenci

Subjects
Physics, Nuclear and High Energy Physics, Jet (fluid), Particle physics, Large Hadron Collider, Large sample, law.invention, Nuclear physics, law, Strong coupling, High Energy Physics::Experiment, Nuclear Experiment, Collider, Constant (mathematics), Production rate
Abstract

The large sample of W→eν events collected by the UA2 experiment at the CERN pp collider between 1988 and 1990 has been used to determine the strong coupling constant α s . From a measurement of the ratio of the production rate of W events with one jet to that with no jets, α s has been extracted to second order in the MS scheme: α s (M 2 w )=0.123±0.0.18( stat .)±0.017 ( syst .) .

Published
1991

26. A measurement of electron-tau universality from decays of intermediate vector bosons at the CERN $$\bar pp$$ collider

Author

Julius Hrivnac, M. Moniez, Steinar Stapnes, R. S. DeWolf, Gary F. Egan, V. Simak, Valerio Vercesi, F. Gianotti, P. Cenci, D. J. Munday, Claus Gössling, T. DelPrete, Giovanni Carboni, P. Lubrano, L. Linssen, H. Zaccone, C. Onions, P. Petroff, Karl Jakobs, J. Incandela, L. Mandelli, F. Tondini, J-P. Meyer, Chariclia Petridou, M. Pepe, S. Lami, P. Bareyre, Alan Poppleton, N. Kurz, M. Morganti, Livio Mapelli, R. Moning, F. Pastore, H. Plothow-Besch, Cinzia Talamonti, S. Grünendahl, K. Borer, J. Schacher, D. Autiero, Andrea Federspiel, M. Primavera, Paolo Lariccia, T. Pal, P. S. Wells, V. Sondermann, R. Ansari, Michael Andrew Parker, G. Unal, L. Müller, Darien Wood, V. G. Goggi, A. Zylberstejn, J.M. Pentney, M. Bonesini, G. Parrour, A. V. Stirling, Massimiliano F. Sacchi, B. Esposito, D. Buskulic, B. Merkel, K. Hara, Louis Fayard, T. O. White, E. E. Kluge, C. Magneville, Roberto Ferrari, J. C. Chollet, C. Conta, Luca Cozzi, G. Fumagalli, D. Cavalli, Adele Rimoldi, Michele Livan, M. Curatolo, Laura Perini, Giovanna Ambrosini, S. A. Wotton, K. Hultqvist, L. DiLella, Peter Jenni, J. M. Gaillard, Y. Ducros, S. L. Singh, Marcello Mazzanti, J. P. Repellin, G. Blaylock, S. N. Tovey, E. Pennacchio, A. Dell'Acqua, A. R. Weidberg, Kevin Einsweiler, M. Punturo, J. Alitti, Sten Hellman, E. Iacopini, Vincenzo Cavasinni, Michel Lefebvre, M. Bourliaud, Paola Scampoli, Marco Fraternali, I.A. Bertram, E. Tsesmelis, H. Hufnagel, E. Hugentobler, M. Valdata-Nappi, Daniel Froidevaux, K. Meier, P. Bonamy, Klaus Peter Pretzl, Francesca Nessi-Tedaldi, A. Cravero, O. Gildemeister, G. Polesello, F. Costantini, G. Costa, and Marzio Nessi

Subjects
Physics, Particle physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), Electroweak interaction, Electron, Universality (dynamical systems), Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Charged current, Lepton
Abstract

The ratio of branching fractions of theW decaying to τ ande leptons is measured using $$\bar pp$$ collisions at $$\sqrt s = 630$$ GeV. The ratio of the electroweak charged current couplings to theW is then determined to beg /g =0.997±0.056 (stat.)±0.042 (syst.). The decay modeZ→τ+→τ+ is observed and also found to be consistent withe-τ universality.

Published
1991

27. A measurement of two-jet decays of theW andZ bosons at the CERN $$\bar p$$ p collider

Author

M. Punturo, Gary F. Egan, E. Hugentobler, M. Valdata-Nappi, Giovanni Carboni, Claus Gössling, C. Onions, J. Alitti, K. Borer, M. Primavera, P. Cenci, M. Bourliaud, Paola Scampoli, P. Petroff, Karl Jakobs, S. A. Wotton, G. Costa, K. Hultqvist, N. Kurz, Marco Fraternali, K. Meier, F. Pastore, R. Moning, Peter Jenni, D. Autiero, R. Ansari, C. Magneville, Louis Fayard, B. Merkel, Steinar Stapnes, F. Tondini, R. S. DeWolf, M. Lefebvre, G. Parrour, E. Iacopini, Roberto Ferrari, J. M. Gaillard, Michele Livan, J. C. Chollet, M. Moniez, D. J. Munday, H. Plothow-Besch, V. G. Goggi, Vincenzo Cavasinni, G. Fumagalli, P. S. Wells, T. DelPrete, A. V. Stirling, G. Unal, F. Costantini, S. L. Singh, T. O. White, D. Buskulic, M. A. Parker, J-P. Meyer, Chariclia Petridou, P. Bareyre, D. Cavalli, Adele Rimoldi, K. Hara, J. M. Pentney, S. Lami, E. Pennacchio, Darien Wood, A. Dell'Acqua, C. Conta, G. Polesello, V. Simak, Andrea Federspiel, S. Grünendahl, Paolo Lariccia, M. Pepe, L. Mandelli, Valerio Vercesi, D. Froidevaux, F. Gianotti, L. Müller, A. R. Weidberg, O. Gildemeister, S.N. Tovey, A. Cravero, Kevin Einsweiler, Laura Perini, L. Rasmussen, J. P. Repellin, E. Tsesmelis, Sten Hellman, J. Schacher, T. Pal, P. Bonamy, M. Bonesini, E. E. Kluge, Klaus Peter Pretzl, H. Zaccone, Richard E. Ansorge, P. Lubrano, L. Linssen, Joe Incandela, Alan Poppleton, Livio Mapelli, Marcello Mazzanti, G. Blaylock, M. Morganti, and L. DiLella

Subjects
Physics, Particle physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), Hadron, Elementary particle, Jet (particle physics), law.invention, Calorimeter, Nuclear physics, law, Mass spectrum, High Energy Physics::Experiment, Collider, Engineering (miscellaneous), Boson
Abstract

A study of the two-jet mass spectrum measured with the UA 2 calorimeter has revealed a signal from hadronic decays ofW andZ bosons above a large background. Production and decay properties of the signal have been measured. The combined production cross-section σ·B(W, Z → two jets) is 9.6±2.3 (stat.)±1.1 (syst.) nb, compared with an expectation of 5.8 nb calculated to order αs2. A limit on the production cross-section of additional heavy vector bosons decaying into two jets is given as a function of the boson mass.

Published
1991

28. Inclusive jet cross-section and a search for quark compositeness at the CERN Collider

Author

G. Costa, J. M. Pentney, O. Gildemeister, G. Polesello, E. Pennacchio, Roberto Ferrari, Marzio Nessi, Giovanni Carboni, A. Dell'Acqua, M. Morganti, Francesca Nessi-Tedaldi, M. Moniez, Steinar Stapnes, R. S. DeWolf, J. C. Chollet, E. Hugentobler, Louis Fayard, Michel Lefebvre, M. Bourliaud, Paola Scampoli, Marco Fraternali, C. Conta, C. Onions, M. Valdata-Nappi, D. J. Munday, F. Pastore, Laura Perini, P. Petroff, Karl Jakobs, V. G. Goggi, H. Plothow-Besch, J. P. Repellin, Marcello Mazzanti, Valerio Vercesi, Michele Livan, F. Gianotti, G. Unal, A. R. Weidberg, E. Iacopini, G. Blaylock, M. Pepe, Joe Incandela, Andrea Federspiel, P. Bonamy, Paolo Lariccia, P. S. Wells, Alan Poppleton, N. Kurz, D. Buskulic, T. DelPrete, J. Schacher, D. Autiero, Vincenzo Cavasinni, Livio Mapelli, S. L. Singh, S.N. Tovey, R. Ansari, Claus Gössling, E. E. Kluge, M. Punturo, C. Magneville, S. Lami, A. V. Stirling, S. A. Wotton, K. Hultqvist, L. DiLella, P. Lubrano, J. Alitti, Kevin Einsweiler, F. Tondini, H. Zaccone, L. Linssen, M. Bonesini, P. Bareyre, Peter Jenni, Klaus Peter Pretzl, K. Meier, F. Costantini, K. Hara, J. M. Gaillard, T. Pal, L. Rasmussen, M. A. Parker, D. Cavalli, Adele Rimoldi, M. Primavera, Darien Wood, R. Moning, T. O. White, J-P. Meyer, Chariclia Petridou, B. Merkel, Gary F. Egan, P. Cenci, G. Fumaglli, S. Grünendahl, K. Borer, L. Mandelli, L. Müller, E. Tsesmelis, Sten Hellman, G. Parrour, and D. Froidevaux

Subjects
Physics, Quark, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Elementary particle, Jet (particle physics), law.invention, Nuclear physics, law, Pseudorapidity, High Energy Physics::Experiment, Nuclear Experiment, Collider
Abstract

The inclusive jet cross-section has been measured at the CERN p p Collider ( s = 630 GeV ) as a function of the jet transverse momentum (pT) and pseudorapidity (η) for pT values up to 180 GeV and for−2 825 GeV (95% CL) is set on the quark compositeness scale Λc.

Published
1991

29. A precise measurement of the muon neutrino nucleon inclusive charged current cross section off an isoscalar target in the energy range 2.5

Author

O.L. Klimov, K. Schahmaneche, E. Pennacchio, Malcolm Ellis, N. Hyett, D. Pollmann, Yu. Nefedov, J.J. Gómez-Cadenas, T. Weisse, V. Tereshchenko, L. Vacavant, D. Sillou, Alexey Krasnoperov, D. Steele, H. Degaudenzi, Caroline Poulsen, E. do Couto e Silva, R. Petti, M. Baldo-Ceolin, M. Banner, André Rubbia, D. Geppert, G. J. Feldman, G. F. Moorhead, B. A. Popov, P.W. Cattaneo, C. Conta, Marco Fraternali, B. Schmidt, A. Marchionni, T. Vinogradova, L. Linssen, E. Iacopini, Didier Ferrere, G. Conforto, F. Salvatore, A. Kovzelev, F. Bobisut, H. Pessard, Sergey Alekhin, L. La Rotonda, S. R. Mishra, Q. Wu, Valerio Vercesi, P. Hurst, Vincenzo Cavasinni, A. Ljubič, P. Riemann, F. Martelli, S.N. Tovey, F.V. Weber, L. Di Lella, Dmitry V. Naumov, K. Benslama, A. Godley, Fr Pastore, A. Guglielmi, M. Valdata-Nappi, A.-M. Touchard, N. Kent, U. Stiegler, J. Long, M. Veltri, Frédéric Juget, M. Kirsanov, Chiara Roda, M. T. Tran, Sergei Gninenko, J.J. Kim, Stefano Lacaprara, J. Dumarchez, Claus Gößling, L. S. Peak, H. Zaccone, C. Joseph, Fergus Wilson, Domizia Orestano, G. Vidal-Sitjes, E. Gangler, A. Placci, Vyacheslav Valuev, Kevin Varvell, A. Letessier-Selvon, V. V. Lyubushkin, Antonio Bueno, M. Mezzetto, C. Nguyen-Mau, A. De Santo, Giacomo Polesello, A. N. Toropin, Kai Zuber, M. Contalbrigo, F. Vannucci, J.M. Gaillard, T. Del Prete, M. Tareb-Reyes, A. Grant, Barry Blumenfeld, R. Challis, P. Nedelec, Nathalie Besson, G. Collazuol, Mario Stipčević, S.A. Bunyatov, J.-P. Mendiburu, J-P. Meyer, J. M. Levy, Marco Laveder, L.J. Winton, Alessandro Cardini, M. Gouanère, M.B. Seaton, I. Bird, Sergey A. Kulagin, J. Ulrichs, G. Bassompierre, V. Flaminio, P. Zuccon, A. Baldisseri, R. Cousins, G. Sozzi, J.-M. Vieira, F. J. P. Soler, Th. Stolarczyk, E. Tsesmelis, Caren Hagner, S. Boyd, A. Sconza, B. Lakić, J. Rico, G. N. Taylor, P. Astier, J. Gosset, M. E. Sevior, D. Autiero, D. Gibin, T. Schmidt, A. Polyarush, A. Lanza, Achim Geiser, Luca Rebuffi, Artem Chukanov, J. Bouchez, O. Samoylov, A. Lupi, Roberto Ferrari, Bruce Yabsley, X. Méchain, C. Lachaud, Giacomo Graziani, J. Kokkonen, J. A. Hernando, A. Cervera-Villanueva, L. Camilleri, 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), APC - Neutrinos, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), NOMAD, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Muon, 010308 nuclear & particles physics, Isoscalar, Astrophysics::High Energy Astrophysical Phenomena, 01 natural sciences, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Muon neutrino, High Energy Physics::Experiment, Neutrino, 010306 general physics, Nucleon, Neutrino oscillation, Nuclear Experiment, Charged current
Abstract

We present a measurement of the muon neutrino–nucleon inclusive charged current cross section, off an isoscalar target, in the neutrino energy range 2.5 ⩽ E ν ⩽ 40 GeV . The significance of this measurement is its precision, ±4% in 2.5 ⩽ E ν ⩽ 10 GeV , and ±2.6% in 10 ⩽ E ν ⩽ 40 GeV regions, where significant uncertainties in previous experiments still exist, and its importance to the current and proposed long baseline neutrino oscillation experiments.

Published
2008

30. Measurement ofW andZ production cross sections at the CERN $$\bar p$$ p collider

Author

L. Mandelli, M. Moniez, H. Zaccone, P. Bareyre, N. Kurz, C. Conta, G. Polesello, J. M. Gaillard, Steinar Stapnes, R. S. DeWolf, F. Tondini, J. Alitti, Darien Wood, M. Bonesini, D. J. Munday, E. Hugentobler, H. Plothow-Besch, P. S. Wells, S. A. Wotton, K. Hultqvist, S. Grünendahl, P. Lubrano, L. Linssen, M. Valdata-Nappi, J. Schacher, L. DiLella, C. N. Booth, Marcello Mazzanti, G. Fumagalli, T. DelPrete, Peter Jenni, G. Blaylock, B. DeLotto, Laura Perini, K. Hara, Andrea Federspiel, Paolo Lariccia, John Gordon Rushbrooke, M. Morganti, L. Müller, Gary F. Egan, D. Buskulic, V. G. Goggi, K. Meier, Michele Livan, M. Punturo, R. Moning, O. Gildemeister, G. Parrour, B. Merkel, J. P. Repellin, Roberto Ferrari, J. C. Chollet, Alan Poppleton, T. Pal, Valerio Vercesi, P. Cenci, F. Gianotti, Livio Mapelli, M. A. Parker, D. Cavalli, Adele Rimoldi, E. Pennacchio, F. Costantini, A. Dell'Acqua, C. Magneville, B. Lisowski, E. E. Kluge, J-P. Meyer, Chariclia Petridou, Claus Gössling, A. V. Stirling, R. Ansari, P. Bonamy, M. Pepe, L. Rasmussen, Louis Fayard, J. Crittenden, E. Iacopini, Vincenzo Cavasinni, Paolo Bagnaia, Giovanni Carboni, F. Pastore, Richard E. Ansorge, T. O. White, A. R. Weidberg, G. Costa, S.N. Tovey, Kevin Einsweiler, S. L. Singh, S. Lami, Michel Lefebvre, Paola Scampoli, Marco Fraternali, Joe Incandela, E. Tsesmelis, Sten Hellman, K. Borer, C. Onions, D. Froidevaux, P. Petroff, Karl Jakobs, and J. M. Pentney

Subjects
Physics, Particle physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), law.invention, Standard Model, Large sample, Nuclear physics, law, Production (computer science), Collider, Engineering (miscellaneous), Bar (unit), Boson
Abstract

Results on the production cross sections ofW andZ bosons detected in the UA2 experiment are given based on a large sample ofW→eν andZ→e + e − decays. The measured cross sections are σ = 660±15(stat)±37(syst)pb, σ = 70.4±5.5(stat)±4.0(syst)pb and their ratioR=9.38 −0.72 +0.82 (stat)±0.25(syst). In the framework of the Standard Model, the measured value ofR is used to determine the total width of theW, Γ(W)=2.30±0.19(stat)±0.06(syst) GeV.

Published
1990

31. Numerical Study of the Very Forward Background from the Proton-Proton Collisions in the Experimental Insertions of the LHC

Author

Helmut Burkhardt, D. Macina, V. Talanov, and E. Tsesmelis

Subjects
Nuclear physics, Physics, Large Hadron Collider, Computer simulation, Interaction point, Proton, Physics::Instrumentation and Detectors, Roman pot, Collision, Accelerators and Storage Rings, Particle detector, Beam (structure)
Abstract

The results from the numerical DPMJET-FLUKA simulation of the background in the experimental insertion regions of the LHC are presented. DPMJET3 is used for the generation and analysis of the products from the p-p collision leaving the interaction point in the very forward region. A multi-particle transport code FLUKA is used for the simulation of the resulting secondary cascades in the structure of the LHC Long Straight Sections. The background formation is estimated and analyzed in the LSSs at the locations of the TAN absorbers, Roman Pot stations and Beam Loss Monitors, for the purposes of the machine protection and planning of the operation of the detectors.

Published
2007

32. Search for the exotic Θ+ resonance in the NOMAD experiment

Author

Malcolm Ellis, O.L. Klimov, J.J. Gómez-Cadenas, A. Polyarush, M. Mezzetto, J. Long, Y. Nefedov, S.R. Mishra, Domizia Orestano, Frédéric Juget, Kai Zuber, Achim Geiser, Chiara Roda, E. do Couto e Silva, G. Bassompierre, Kevin Varvell, K. Benslama, A. Grant, H. Pessard, P. Nedelec, M. Contalbrigo, F. Salvatore, C. Conta, D. Geppert, Mikhail Kirsanov, P.W. Cattaneo, Ante Ljubičić, B. Schmidt, J. M. Levy, R. Cousins, J. Rico, J-P. Meyer, I. Bird, Luca Rebuffi, S. Boyd, C. Lachaud, Valerio Vercesi, Artem Chukanov, J.-M. Vieira, L.J. Winton, J. A. Hernando, Giacomo Graziani, G. Collazuol, Mario Stipčević, M. T. Tran, Dmitry V. Naumov, B. Lakić, J. Ulrichs, G. Conforto, Alexey Krasnoperov, G. N. Taylor, A. Sconza, R. Challis, E. Gangler, E. Pennacchio, T. Dignan, G. Sozzi, N. Hyett, S.A. Bunyatov, M. Baldo-Ceolin, M. Banner, D. Pollmann, F. Bobisut, Alexander Toropin, L. S. Peak, Nathalie Besson, V. Flaminio, F. J. P. Soler, Claus Gößling, B. A. Popov, Antonio Bueno, André Rubbia, H. Zaccone, T. Vinogradova, D. Sillou, G. Vidal-Sitjes, C. Joseph, D. Steele, A. Cervera-Villanueva, A. Letessier-Selvon, Marco Fraternali, A. Baldisseri, A. Guglielmi, E. Tsesmelis, Caren Hagner, D. Daniels, V. V. Lyubushkin, Giacomo Polesello, E. Iacopini, M. Tareb-Reyes, Marco Laveder, A. Marchionni, L. Camilleri, J. Gosset, L. La Rotonda, Barry Blumenfeld, A. Placci, J.-P. Mendiburu, Vincenzo Cavasinni, A.-M. Touchard, H. Degaudenzi, Michel Gouanère, A. De Santo, J. Kokkonen, G. J. Feldman, T. Weisse, T. Schmidt, F. Martelli, G. F. Moorhead, R. Petti, Stefano Lacaprara, Fergus Wilson, Alessandro Cardini, N. Kent, P. Riemann, A. Godley, D. Gibin, L. Vacavant, A. Kovzelev, A. Lanza, J.M. Gaillard, M. Veltri, Didier Ferrere, Th. Stolarczyk, U. Stiegler, Sergei Gninenko, M. E. Sevior, Roberto Ferrari, J. Bouchez, O. Samoylov, A. Lupi, Bruce Yabsley, X. Méchain, J. Dumarchez, Vyacheslav Valuev, P. Astier, D. Autiero, F. Vannucci, D. Hubbard, P. Zuccon, V. Tereshchenko, Caroline Poulsen, K. Schahmaneche, P. Hurst, L. Di Lella, M. Valdata-Nappi, L. Linssen, F.V. Weber, S.N. Tovey, Fr Pastore, C. Nguyen-Mau, T. Del Prete, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), 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), APC - Neutrinos, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), NOMAD, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire d'Annecy de Physique des Particules (LAPP), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Samoylov, O, Naumov, D, Cavasinni, V, Astier, P, Autiero, D, Baldisseri, A, Baldo Ceolin, M, Banner, M, Bassompierre, G, Benslama, K, Besson, N, Bird, I, Blumenfeld, B, Bobisut, F, Bouchez, J, Boyd, S, Bueno, A, Bunyatov, S, Camilleri, L, Cardini, A, Cattaneo, Pw, Cervera Villanueva, A, Challis, R, Chukanov, A, Collazuol, G, Conforto, G, Conta, C, Contalbrigo, M, Cousins, R, Daniels, D, Degaudenzi, H, Del Prete, T, De Santo, A, Dignan, T, Di Lella, L, Silva, Ede, Dumarchez, J, Ellis, M, Feldman, Gj, Ferrari, R, Ferrere, D, Flaminio, V, Fraternali, M, Gaillard, Jm, Gangler, E, Geiser, A, Geppert, D, Gibin, D, Gninenko, S, Godley, A, Gomez Cadenas, Jj, Gosset, J, Gossling, C, Gouanere, M, Grant, A, Graziani, G, Guglielmi, A, Hagner, C, Hernando, J, Hubbard, D, Hurst, P, Hyett, N, Iacopini, E, Joseph, C, Juget, F, Kent, N, Kirsanov, M, Klimov, O, Kokkonen, J, Kovzelev, A, Krasnoperov, A, Lacaprara, S, Lachaud, C, Lakic, B, Lanza, A, La Rotonda, L, Laveder, M, Letessier Selvon, A, Levy, Jm, Linssen, L, Ljubicic, A, Long, J, Lupi, A, Lyubushkin, V, Marchionni, A, Martelli, F, Mechain, X, Mendiburu, Jp, Meyer, Jp, Mezzetto, M, Mishra, Sr, Moorhead, Gf, Nedelec, P, Nefedov, Y, Nguyen Mau, C, Orestano, Domizia, Pastore, F, Peak, L, Pennacchio, E, Pessard, H, Petti, R, Placci, A, Polesello, G, Pollmann, D, Polyarush, A, Poulsen, C, Popov, B, Rebuffi, L, Rico, J, Riemann, P, Roda, C, Rubbia, A, Salvatore, F, Schahmaneche, K, Schmidt, B, Schmidt, T, Sconza, A, Sevior, M, Sillou, D, Soler, Fjp, Sozzi, G, Steele, D, Stiegler, U, Stipcevic, M, Stolarczyk, T, Tareb Reyes, M, Taylor, Gn, Tereshchenko, V, Toropin, A, Touchard, Am, Tovey, Sn, Tran, Mt, Tsesmelis, E, Ulrichs, J, Vacavant, L, Valdata Nappi, M, Valuev, V, Vannucci, F, Varvell, Ke, Veltri, M, Vercesi, V, Vidal Sitjes, G, Vieira, Jm, Vinogradova, T, Weber, Fv, Weisse, T, Wilson, Ff, Winton, Lj, Yabsley, Bd, Zaccone, H, Zuber, K, and Zuccon, P.

Subjects
Quark, Particle physics, Physics and Astronomy (miscellaneous), Proton, neutrino, nutrino oscillations, quarks, Electromagnetic Calorimeter, 7. Clean energy, 01 natural sciences, Particle identification, High Energy Physics - Experiment, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Muon neutrino, 010306 general physics, Engineering (miscellaneous), Charged current, Physics, Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Física, Transition Radiation Detector, Positive-strangeness, Baryon, Photoproduction, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment, Charged Current Interactions
Abstract

12 pages, 16 figures.-- PACS nrs.: 13.15.+g; 13.60.Le; 13.87.Fh; 14.40.Ev.-- ISI Article Identifier: 000243973100007.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ex/0612063.-- et al., Printed version published in Jan 2007., A search for exotic Θ(+) baryon via Θ(+) -> p + K-S(0) decay mode in the NOMAD v(μ)N data is reported. The special background generation procedure was developed. The proton identification criteria are tuned to maximize the sensitivity to the Θ(+) signal as a function of x(F) which allows to study the Θ(+) production mechanism. We do not observe any evidence for the Θ(+) state in the NOMAD data. We provide an upper limit on Θ(+) production rate at 90% CL as 2.13 x 10(-3) per neutrino interaction., The experiment was supported by the following funding agencies: Australian Research Council (ARC) and Department of Education, Science, and Training (DEST), Australia; Institut National de Physique Nucléaire et Physique des Particules (IN2P3), Commissariat à l’Energie Atomique (CEA), France; Bundesministerium für Bildung und Forschung (BMBF, contract 05 6DO52), Germany; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Joint Institute for Nuclear Research and Institute for Nuclear Research of the Russian Academy of Sciences, Russia; Fonds National Suisse de la Recherche Scientifique, Switzerland; Department of Energy, National Science Foundation (grant PHY-9526278), the Sloan and the Cottrell Foundations, USA.

Published
2007

33. CMS physics technical design report, volume II: Physics performance

Author

G. Russo, R. Halsall, H. L. Zhuang, Stephan Linn, Stefanos Dris, J.F. Gunion, D. Delikaris, David Mark Raymond, Christophe Delaere, J. Caballero Bejar, Alex Kamenev, Victor Kim, Armando Lanaro, Sajjad Asghar, Vivek Sharma, P. Mereu, S. B. Kim, M. G. Albrow, Kostas Kloukinas, R. A. Kvatadze, Y. Velikzhanin, C. Mavrommatis, J. T. Rhee, M. Guerzoni, Robert M Harris, F. Romano, Daniele Spiga, Flera Rizatdinova, Dmitry Gorbunov, Giacomo Bruno, Laszlo Boldizsar, W. E. Johns, B. De Callatay, Pushpalatha C Bhat, M. Pioppi, Lawrence Sulak, L. J. Gutay, M. Hashemi, W. Badgett, A. Bartoloni, C. Y. Chien, E. Marinova, Daniel Robert Marlow, J. M. Barcala, C. Sabev, Roberto Sacchi, P. Bartalini, B. Panev, J. Reinhold, Yves Sirois, J. Ying, M. Demarteau, Alicia Calderon, Arno Heister, Lothar At Bauerdick, Marco Meschini, R. Wilkinson, Tejinder Virdee, Mirko Planinic, G. Martinelli, Y. Ershov, Piotr Traczyk, M. Ageron, Kirill Prokofiev, S. De Visscher, W. Bertl, Julia Thom, D. S. Bailey, N. Manna, Francesco Navarria, A. Karar, Pierre Ramond, Lucia Silvestris, R. Eichler, Neeti Parashar, S. Cucciarelli, R. Gokieli, Christopher George Tully, L. Masetti, I. Gonzalez Cabellero, Klaus Rabbertz, S. Zelepoukine, Sebastiano Albergo, A. Bonnevaux, P. Fabbricatore, Claudio Campagnari, V. Timciuc, O. Zorba, Igor Lokhtin, Ezio Maina, Colin Bernet, Nadia Pastrone, M. Galanti, K. Marasovic, Jim Kowalkowski, M. Zielinski, P. Aspell, Teppo Mäenpää, Pamela Klabbers, V. B. Francis, I. Diaz Merino, H. A. Sanchez Hernandez, Valery Zhukov, Christos Leonidopoulos, Gyorgy Bencze, Dimitri Bourilkov, Vassili Kachanov, Marina Passaseo, Patrick Slattery, J. Schümann, K. Cho, Hans-Christian Kaestli, Filip Moortgat, Francesca Nessi-Tedaldi, S. K. Lalwani, P. Trüb, D. Wenman, Aliaksandr Litomin, P. Siegrist, S. K. Oh, M. Kossov, A. Slav, Nicanor Colino, Z. Wlodarczyk, J. Amundson, H. Mathez, A. Papageorgiou, Pete Markowitz, J. Blocki, I. Soric, L. Stepanova, Pierluigi Paolucci, Amitabh Lath, Jianhong Wu, N. Sinanis, R. Imlay, Dario Menasce, T. Grassi, S. Lusin, H. von Gunten, T. Weiler, Gyorgy Vesztergombi, J. P. Dewulf, G. Marian, B. A. Barnett, N. Iyurin, Frank Jm Geurts, T. Hesselroth, Nikolaos Manthos, Martin Grunewald, Oleg Prokofyev, Wolfram Erdmann, V. Elsha, A. Krokhotin, Livio Fanò, David Barney, Stephanie Beauceron, Mark Raymond Adams, Nicolo Cartiglia, Alexander Oh, Safdar Abbas, Giorgio Apollinari, M. Jenkins, G. Belli, E. E. Boos, Elena Accomando, M. Afaq, Yan-Lin Ye, M. Serin-Zeyrek, Karl Gill, H. S. Chen, Roland Horisberger, S. Mersi, Serguei Ganjour, P. Tempesta, Sergio Cittolin, Julien Caudron, I. Schmidt, Stefan Schael, R. Dabrowski, Sudhir Malik, M. Cardenas Montes, P. S. Flower, K. Gabathuler, T. L. Watts, D. A. Sanders, V. Bhandari, G. Lukhanin, Y. Fu, S. Vassiliev, I. Legrand, Srecko Morovic, Francois Vasey, Yuan Chao, Y. 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Filine, Pascal Paganini, A. Roy, N. Zamiatin, S. Paktinat Mehdiabadi, Vladimir Andreev, Aruna Nayak, I. Jimenez, Archana Sharma, Saptaparna Bhattacharya, Laird Kramer, Andrey Korytov, P. Chang, Eduardo De Moraes Gregores, John H. Wickens, Vladimir Korenkov, N. Magini, A. Moggi, I. Crotty, Jan Krolikowski, Duccio Abbaneo, V. Litvine, Elizabeth Locci, M. I. Asghar, A. Kapusi, Y. Zhang, C. Bloch, V. Sknar, Vadim Issakov, Giovanni Polese, Alexander Toropin, J. Nysten, E. Forton, Y. Liu, S. Wang, M. Jaworski, H. Foeth, Belforte, S., Cossutti, F., DELLA RICCA, Giuseppe, Gobbo, B., Penzo, A., Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), 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), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), 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), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), informatique, 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 Claude Bernard Lyon 1 (UCBL), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Laboratoire d'Annecy de Physique des Particules (LAPP), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-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)-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), Bayatian, G, Chatrchyan, S, Hmayakyan, G, Sirunyan, A, Adam, W, Bergauer, T, Dragicevic, M, Ero, J, Friedl, M, Fruehwirth, R, Ghete, V, Glaser, P, Hrubec, J, Jeitler, M, Krammer, M, Magrans, I, Mikulec, I, Mitaroff, W, Noebauer, T, Pernicka, M, Porth, P, Rohringer, H, Strauss, J, Taurok, A, Waltenberger, W, Walzel, G, Widl, E, Wulz, C, Fedorov, A, Korzhik, M, Missevitch, O, Zuyeuski, R, Chekhovsky, V, Dvornikov, O, Emeliantchik, I, Litomin, A, Mossolov, V, Shumeiko, N, Solin, A, Stefanovitch, R, Gonzalez, J, Tikhonov, A, Petrov, V, D'Hondt, J, De Weirdt, S, 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S, Singh, S, Steenberg, C, Su, X, Timciuc, V, Van Lingen, F, Veverka, J, Voicu, B, Weinstein, A, Wilkinson, R, Yang, Y, Zhang, L, Zhu, K, Zhu, R, Ferguson, T, Paulini, M, Russ, J, Terentyev, N, Vogel, H, Vorobiev, I, Cumalat, J, Ford, W, Johnson, D, Nauenberg, U, Stenson, K, Wagner, S, Alexander, J, Cassel, D, Ecklund, K, Heltsley, B, Jones, C, Kuznetsov, V, Patterson, J, Ryd, A, Thom, J, Wittich, P, Beetz, C, Cirino, G, Podrasky, V, Sanzeni, C, Winn, D, Abdullin, S, Afaq, M, Albrow, M, Amundson, J, Apollinari, G, Atac, M, Badgett, W, Bakken, J, Baldin, B, Bauerdick, L, Baumbaugh, A, Baur, U, Bhat, P, Borcherding, F, Burkett, K, Butler, J, Cheung, H, Churin, I, Cihangir, S, Demarteau, M, Eartly, D, Elias, J, Elvira, V, Fisk, I, Freeman, J, Gartung, P, Geurts, F, Glenzinski, D, Gottschalk, E, Graham, G, Green, D, Guglielmo, G, Guo, Y, Gutsche, O, Hahn, A, Hanlon, J, Hansen, S, Harris, R, Hesselroth, T, Holm, S, Holzman, B, Iqbal, S, James, E, Johnson, M, Joshi, U, Klima, B, Kowalkowski, J, Kramer, T, Kwan, S, La Vallie, E, Larwill, M, Los, S, Lueking, L, Lukhanin, G, Lusin, S, Maeshima, K, Mcbride, P, Murray, S, O'Dell, V, Paterno, M, Patrick, J, Petravick, D, Pordes, R, Prokofyev, O, Rasmislovich, V, Ratnikova, N, Ronzhin, A, Sekhri, V, Sexton Kennedy, E, Shaw, T, Skow, D, Smith, R, Spalding, W, Spiegel, L, Stavrianakou, M, Stiehr, G, Suzuki, I, Tan, P, Tanenbaum, W, Tkaczyk, S, Veseli, S, Vidal, R, Wenzel, H, Whitmore, J, Womersley, W, Wu, W, Wu, Y, Yagil, A, Yarba, J, Yun, J, Acosta, D, Avery, P, Barashko, V, Bartalini, P, Bourilkov, D, Cavanaugh, R, Drozdetskiy, A, Field, R, Fu, Y, Gray, L, Holmes, D, Kim, B, Klimenko, S, Konigsberg, J, Korytov, A, Kotov, K, Levchenko, P, Madorsky, A, Matchev, K, Mitselmakher, G, Pakhotin, Y, Prescott, C, Ramond, P, Rodriguez, J, Schmitt, M, Scurlock, B, Stoeck, H, Yelton, J, Boeglin, W, Gaultney, V, Kramer, L, Linn, S, Markowitz, P, Martinez, G, Raue, B, Reinhold, J, Askew, A, Bertoldi, M, Dharmaratna, W, Gershtein, Y, Hagopian, S, Hagopian, V, Jenkins, M, Johnson, K, Prosper, H, Wahl, H, Baarmand, M, Baksay, L, Guragain, S, Hohlmann, M, Mermerkaya, H, Ralich, R, Vodopiyanov, I, Adams, M, Betts, R, Gerber, C, Shabalina, E, Smith, C, Ten, T, Akgun, U, Ayan, A, Cooper, A, Debbins, P, Duru, F, Fountain, M, George, N, Mccliment, E, Merlo, J, Mestvirishvili, A, Miller, M, Newsom, C, Norbeck, E, Onel, Y, Schmidt, I, Wang, S, Anderson, E, Atramentov, O, Hauptman, J, Lamsa, J, Barnett, B, Blumenfeld, B, Chien, C, Maksimovic, P, Spangler, S, Swartz, M, Baringer, P, Bean, A, Coppage, D, Grachov, O, Kim, E, Murray, M, Bandurin, D, Bolton, T, Khanov, A, Maravin, Y, Onoprienko, D, Rizatdinova, F, Sidwell, R, Stanton, N, Von Toerne, E, Baden, D, Bard, R, Eno, S, Grassi, T, Hadley, N, Kellogg, R, Kunori, S, Ratnikov, F, Skuja, A, Arcidiacono, R, Ballintijn, M, Bauer, G, Harris, P, Kravchenko, I, Loizides, C, Nahn, S, Paus, C, Pavlon, S, Roland, C, Roland, G, Sumorok, K, Vaurynovich, S, Veres, G, Wyslouch, B, Bailleux, D, Corum, S, Cushman, P, De Benedetti, A, Dolgopolov, A, Egeland, R, Franzoni, G, Gilbert, W, Grahl, J, Haupt, J, Kubota, Y, Mans, J, Pearson, N, Rusack, R, Singovsky, A, Cremaldi, L, Godang, R, Kroeger, R, Sanders, D, Summers, D, Bloom, K, Claes, D, Dominguez, A, Eads, M, Lundstedt, C, Malik, S, Snow, G, Sobol, A, Iashvili, I, Kharchilava, A, Alverson, G, Barberis, E, Boeriu, O, Eulisse, G, Musienko, Y, Muzaffar, S, Osborne, I, Reucroft, S, Swain, J, Taylor, L, Tuura, L, Wood, D, Gobbi, B, Kubantsev, M, Schellman, H, Spencer, E, Velasco, M, Baumbaugh, B, Cason, N, Hildreth, M, Karmgard, D, Marinelli, N, Ruchti, R, Warchol, J, Wayne, M, Bylsma, B, Durkin, L, Gilmore, J, Gu, J, Herman, D, Killewald, P, Knobbe, K, Ling, T, Elmer, P, Marlow, D, Piroue, P, Stickland, D, Tully, C, Wildish, T, Wynhoff, S, Xie, Z, Apresyan, A, Arndt, K, Banicz, K, Barnes, V, Bolla, G, Bortoletto, D, Bujak, A, Garfinkel, A, Lopez, O, Gutay, L, Ippolito, N, Kozhevnikov, Y, Laasanen, A, Liu, C, Maroussov, V, Merkel, P, Miller, D, Miyamoto, J, Neumeister, N, Rott, C, Roy, A, Sedov, A, Shipsey, I, Parashar, N, Eppley, G, Lee, S, Liu, J, Matveev, M, Nussbaum, T, Padley, B, Roberts, J, Tumanov, A, Yepes, P, Bodek, A, Budd, H, Chung, Y, De Barbaro, P, Demina, R, Eusebi, R, Ginther, G, Gotra, Y, Hocker, A, Husemann, U, Korjenevski, S, Sakumoto, W, Slattery, P, Tipton, P, Zielinski, M, Bartz, E, Doroshenko, J, Halkiadakis, E, Jacques, P, Kalelkar, M, Khits, D, Lath, A, Macpherson, A, Perera, L, Plano, R, Rose, K, Schnetzer, S, Somalwar, S, Stone, R, Thomson, G, Watts, T, Akchurin, N, Carrell, K, Gumus, K, Jeong, C, Kim, H, Papadimitriou, V, Sill, A, Spezziga, M, Washington, E, Wigmans, R, Bapty, T, Engh, D, Johns, W, Keskinpala, T, Lopez, E, Neema, S, Nordstrom, S, Pathak, S, Sheldon, P, Vaandering, E, Webster, M, Arenton, M, Conetti, S, Cox, B, Hirosky, R, Imlay, R, Ledovskoy, A, Phillips, D, Powell, H, Ronquest, M, Smith, D, Baek, Y, Bellinger, J, Bradley, D, Carlsmith, D, Crotty, I, Dasu, S, Feyzi, F, Gorski, T, Grothe, M, Hogg, W, Jaworski, M, Klabbers, P, Lanaro, A, Loveless, R, De Abril, M, Reeder, D, Smith, W, Wenman, D, Atoyan, G, Dhawan, S, Issakov, V, Neal, H, Poblaguev, A, Zeller, M, Yuldashev, B, TR1918, Demir, Durmuş Ali, Izmir Institute of Technology. Physics, Çukurova Üniversitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics beyond the Standard Model, Large Hadron Collider (LHC), 01 natural sciences, 7. Clean energy, HIGGS-BOSON PRODUCTION, TO-LEADING-ORDER, PRODUCTION CROSS-SECTION, LARGE HADRON COLLIDER, SUPERSYMMETRIC STANDARD MODEL, ELECTROWEAK SYMMETRY-BREAKING, LARGE TRANSVERSE-MOMENTUM, B-C MESON, SUPERCONDUCTING SUPER COLLIDER, SOFTLY BROKEN SUPERSYMMETRY, Vector boson, Settore FIS/04 - Fisica Nucleare e Subnucleare, PARTICLE PHYSICS, CMS, Energy density, technical design report, CERN, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics, Large Hadron Collider, Settore FIS/01 - Fisica Sperimentale, Supersymmetry, Physics and Astronomy (all), Nuclear and High Energy Physics, FIS/01 - FISICA SPERIMENTALE, High-density QCD matter, Higgs boson, CMS, LHC, Physics, particles, Higgs, particle physics, detector, accelerator, Particle physics, Standard Model, Settore FIS/03 - Fisica della Materia, Nuclear physics, 0103 physical sciences, 010306 general physics, Settore MAT/07 - Fisica Matematica, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Little Higgs, pp, LHC, Higgs, supersymmetry, heavy ion, High Energy Physics::Experiment, CERN Large Hadron Collider (LHC), Parton momentum fraction, Minimal Supersymmetric Standard Model
Abstract

CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider (LHC). It currently involves more than 2000 physicists from more than 150 institutes and 37 countries. The LHC will provide extraordinary opportunities for particle physics based on its unprecedented collision energy and luminosity when it begins operation in 2007. The principal aim of this report is to present the strategy of CMS to explore the rich physics programme offered by the LHC. This volume demonstrates the physics capability of the CMS experiment. The prime goals of CMS are to explore physics at the TeV scale and to study the mechanism of electroweak symmetry breaking - through the discovery of the Higgs particle or otherwise. To carry out this task, CMS must be prepared to search for new particles, such as the Higgs boson or supersymmetric partners of the Standard Model particles, from the start-up of the LHC since new physics at the TeV scale may manifest itself with modest data samples of the order of a few fb-1 or less. The analysis tools that have been developed are applied to study in great detail and with all the methodology of performing an analysis on CMS data specific benchmark processes upon which to gauge the performance of CMS. These processes cover several Higgs boson decay channels, the production and decay of new particles such as Z′ and supersymmetric particles, Bs production and processes in heavy ion collisions. The simulation of these benchmark processes includes subtle effects such as possible detector miscalibration and misalignment. Besides these benchmark processes, the physics reach of CMS is studied for a large number of signatures arising in the Standard Model and also in theories beyond the Standard Model for integrated luminosities ranging from 1 fb-1 to 30 fb-1. The Standard Model processes include QCD, B-physics, diffraction, detailed studies of the top quark properties, and electroweak physics topics such as the W and Z0 boson properties. The production and decay of the Higgs particle is studied for many observable decays, and the precision with which the Higgs boson properties can be derived is determined. About ten different supersymmetry benchmark points are analysed using full simulation. The CMS discovery reach is evaluated in the SUSY parameter space covering a large variety of decay signatures. Furthermore, the discovery reach for a plethora of alternative models for new physics is explored, notably extra dimensions, new vector boson high mass states, little Higgs models, technicolour and others. Methods to discriminate between models have been investigated. This report is organized as follows. Chapter 1, the Introduction, describes the context of this document. Chapters 2-6 describe examples of full analyses, with photons, electrons, muons, jets, missing E T, B-mesons and τ's, and for quarkonia in heavy ion collisions. Chapters 7-15 describe the physics reach for Standard Model processes, Higgs discovery and searches for new physics beyond the Standard Model. © 2007 IOP Publishing Ltd.

Published
2007

34. Production properties of $K*(892)\pm$ vector mesons and their spin alignment as measured in the NOMAD experiment

Author

J-P. Meyer, L.J. Winton, J. Rico, G. Bassompierre, J. Kokkonen, J. Ulrichs, D. Geppert, P.W. Cattaneo, Ante Ljubičić, V. Tereshchenko, P. Hurst, Rotonda L. La, T. Stolarczyk, M. Kirsanov, J. Long, G. Sozzi, F. Salvatore, S. Boyd, B. Lakić, G. N. Taylor, H. Degaudenzi, G. J. Feldman, M. Gouanère, Marco Fraternali, A. Kovzelev, M. Valdata-Nappi, D. Shih, L. S. Peak, R. Challis, S.A. Bunyatov, G. F. Moorhead, T. Dignan, V. V. Lyubushkin, Barry Blumenfeld, E. Naumova, O.L. Klimov, A. Polyarush, Caroline Poulsen, K. Benslama, S.R. Mishra, D. Steele, A. Lanza, L. Linssen, Giacomo Graziani, A. Letessier-Selvon, J.M. Gaillard, I. Bird, A. Baldisseri, Achim Geiser, Antonio Bueno, R. Das, M. T. Tran, V. Flaminio, A. N. Toropin, R. Cousins, Frédéric Juget, Chiara Roda, J. A. Hernando, Yu. Nefedov, L. Vacavant, F. J. P. Soler, A. Marchionni, J. M. Levy, D. Daniels, J.-M. Vieira, M. Tareb-Reyes, F. Vannucci, E. Gangler, F.V. Weber, Santo A. De, P. Astier, T. Vinogradova, M. E. Sevior, André Rubbia, F. Bobisut, C. Lachaud, Domizia Orestano, Roberto Ferrari, M. Contalbrigo, S.N. Tovey, R. Petti, Stefano Lacaprara, Fergus Wilson, E. Iacopini, M. Banner, Malcolm Ellis, J.-P. Mendiburu, Claus Gössling, M. Mezzetto, Fr Pastore, Kai Zuber, G. Vidal-Sitjes, A. Cervera-Villanueva, L. Camilleri, Alessandro Cardini, A. Sconza, Vincenzo Cavasinni, J.J. Gómez-Cadenas, Valerio Vercesi, F. Martelli, D. Sillou, N. Kent, D. Autiero, T. Weisse, Prete T. Del, G. Collazuol, Mario Stipčević, T. M. Hong, Lella Luigi Di, Bruce Yabsley, X. Méchain, Luca Rebuffi, Artem Chukanov, Dmitry V. Naumov, B. A. Popov, J. Gosset, C. Conta, B. Schmidt, Kevin Varvell, V. Yu Valuev, C. Nguyen-Mau, A. M. Touchard, G. Polesello, G. Conforto, D. Gibin, A. Grant, P. Nedelec, A. Placci, E. Pennacchio, N. Hyett, Couto E. Silva E. Do, Nathalie Besson, D. Pollmann, A. Godley, U. Stiegler, A. Guglielmi, M. Veltri, H. Zaccone, C. Joseph, Marco Laveder, Alexey Krasnoperov, M. Baldo-Ceolin, D. Hubbard, P. Zuccon, K. Schahmaneche, H. Pessard, J. Dumarchez, Didier Ferrere, Sergei Gninenko, J. Bouchez, A. Lupi, E. Tsesmelis, Caren Hagner, T. Schmidt, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), 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), European Organization for Nuclear Research (CERN), Istituto Nazionale di Fisica Nucleare, Sezione di Firenze (INFN, Sezione di Firenze), Istituto Nazionale di Fisica Nucleare (INFN), NOMAD, Chukanov, A, Naumov, D, Popov, B, Astier, P, Autiero, D, Baldisseri, A, Baldo Ceolin, M, Banner, M, Bassompierre, G, Benslama, K, Besson, N, Bird, I, Blumenfeld, B, Bobisut, F, Bouchez, J, Boyd, S, Bueno, A, Bunyatov, S, Camilleri, L, Cardini, A, Cattaneo, Pw, Cavasinnil, V, Cervera Villanueva, A, Challis, R, Collazuol, G, Conforto, G, Conta, C, Contalbrigo, M, Cousins, R, Daniels, D, Degaudenzi, H, Del Pretel, T, De Santo, A, Dignan, T, Di Lella, L, Silva, Edc, Dumarchez, J, Ellis, M, Feldman, Gj, Ferrari, R, Ferrere, D, Flaminio, V, Fraternali, M, Gaillard, Jm, Gangler, E, Geiser, A, Geppert, D, Gibin, D, Gninenko, S, Godleyl, A, Gomez Cadenas, Jj, Gosset, J, Gossing, C, Gouanere, M, Grants, A, Graziani, G, Guglielmi, A, Hagnerl, C, Hernando, J, Hubbard, D, Hurst, P, Hyett, N, Iacopini, E, Joseph, C, Juget, F, Kent, N, Kirsanov, M, Klimov, O, Kokkonen, J, Kovzelev, A, Krasnoperov, A, Lacaprara, S, Lachaud, C, Lakic, B, Lanza, A, La Rotonda, L, Laveder, M, Letessier Selvon, A, Levy, Jm, Linssen, L, Ljubicic, A, Long, J, Lupi, A, Lyubushkin, V, Marchionni, A, Martellil, F, Mechain, X, Mendiburu, Jp, Meyer, Jp, Mezzetto, M, Mishra, Sr, Moorhead, Gf, Nedelec, P, Nefedov, Y, Nguyen Mau, C, Orestano, Domizia, Pastore, F, Peak, L, Pennacchio, E, Pessard, H, Petti, R, Placci, A, Polesello, G, Pollmann, D, Polyarush, A, Poulsen, C, Rebuffi, L, Reno, R, Rico, J, Riemann, P, Roda, C, Rubbia, A, Salvatore, F, Samoylov, O, Schahmaneche, K, Schmidt, B, Schmidt, T, Sconza, A, Sevior, M, Sillou, D, Soler, Fjp, Sozzi, G, Steele, D, Stiegler, U, Stipcevic, M, Stolarczyk, T, Tareb Reyes, M, Taylor, Gn, Tereshchenko, V, Toropin, A, Touchard, Am, Tovey, Sn, Tran, Mt, Tsesmelis, E, Ulrichs, J, Vacavant, L, Valdata Nappi, M, Valuev, V, Vannucci, F, Varvell, Ke, Veltri, M, Vercesi, V, Vidal Sitjes, G, Vieira, Jm, Vinogradova, T, Weber, Fv, Weisse, T, Wilson, Ff, Winton, Lj, Yabsley, Bd, Zacconel, H, Zei, R, Zuber, K, and Zuccon, P.

Subjects
Particle physics, Physics and Astronomy (miscellaneous), Meson, Analytical chemistry, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Charged current, Spin-½, Physics, Annihilation, Neutral current, 010308 nuclear & particles physics, Física, Full data, Production (computer science), High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

First measurements of K*(892) mesons production properties and their spin alignment in nu_mu charged current (CC) and neutral current (NC) interactions are presented. The analysis of the full data sample of the NOMAD experiment is performed in different kinematic regions. For K*+ and K*- mesons produced in nu_mu CC interactions and decaying into K0 pi+/- we have found the following yields per event: (2.6 +/- 0.2 (stat.) +/- 0.2 (syst.))% and (1.6 +/- 0.1 (stat.) +/- 0.1 (syst.))% respectively, while for the K*+ and K*- mesons produced in nu NC interactions the corresponding yields per event are: (2.5 +/- 0.3 (stat.) +/- 0.3 (syst.))% and (1.0 +/- 0.3 (stat.) +/- 0.2 (syst.))%. The results obtained for the rho00 parameter, 0.40 +/- 0.06 (stat) +/- 0.03 (syst) and 0.28 +/- 0.07 (stat) +/- 0.03 (syst) for K*+ and K*- produced in nu_mu CC interactions, are compared to theoretical predictions tuned on LEP measurements in e+e- annihilation at the Z0 pole. For K*+ mesons produced in nu NC interactions the measured rho00 parameter is 0.66 +/- 0.10 (stat) +/- 0.05 (syst)., 20 pp

Published
2006

35. Physics potential and experimental challenges of the LHC luminosity upgrade

Author

F. Gianotti, M. L. Mangano, T. Virdee, S. Abdullin, G. Azuelos, A. Ball, D. Barberis, A. Belyaev, P. Bloch, M. Bosman, L. Casagrande, D. Cavalli, P. Chumney, S. Cittolin, S. Dasu, A. De Roeck, N. Ellis, P. Farthouat, D. Fournier, J.-B. Hansen, I. Hinchliffe, M. Hohlfeld, M. Huhtinen, K. Jakobs, C. Joram, F. Mazzucato, G. Mikenberg, A. Miagkov, M. Moretti, S. Moretti, T. Niinikoski, A. Nikitenko, A. Nisati, F. Paige, S. Palestini, C. G. Papadopoulos, F. Piccinini, R. Pittau, G. Polesello, E. Richter-Was, P. Sharp, S. R. Slabospitsky, W. H. Smith, S. Stapnes, G. Tonelli, E. Tsesmelis, Z. Usubov, L. Vacavant, J. van der Bij, A. Watson, and M. Wielers

Subjects
Physics, Particle physics, Luminosity (scattering theory), Large Hadron Collider, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Physics beyond the Standard Model, Detector, FOS: Physical sciences, Ranging, Higgs sector, Standard Model, High Energy Physics - Phenomenology, medicine.anatomical_structure, High Energy Physics - Phenomenology (hep-ph), Atlas (anatomy), medicine, High Energy Physics::Experiment, Engineering (miscellaneous), Particle Physics - Phenomenology
Abstract

We discuss the physics potential and the experimental challenges of an upgraded LHC running at an instantaneous luminosity of 10**35 cm-2s-1. The detector R&D needed to operate ATLAS and CMS in a very high radiation environment and the expected detector performance are discussed. A few examples of the increased physics potential are given, ranging from precise measurements within the Standard Model (in particular in the Higgs sector) to the discovery reach for several New Physics processes, 62 pages, 37 figures

Published
2005

36. A study of strange particles produced in neutrino neutral current interactions in the NOMAD experiment

Author

T. Vinogradova, Caroline Poulsen, D. Geppert, P.W. Cattaneo, Ante Ljubičić, R. Challis, S.A. Bunyatov, E. Pennacchio, M. Baldo-Ceolin, M. Banner, J-P. Meyer, N. Hyett, P. Hurst, L.J. Winton, V. V. Lyubushkin, Barry Blumenfeld, J. Ulrichs, A. Guglielmi, L. Di Lella, J.-P. Mendiburu, Alessandro Cardini, F. Salvatore, Kevin Varvell, M. Kirsanov, J. A. Hernando, G. Sozzi, Th. Stolarczyk, A. Baldisseri, L. S. Peak, Rhiju Das, M. E. Sevior, J. Gosset, A. Grant, I. Bird, Luca Rebuffi, R. Cousins, Antonio Bueno, A. N. Toropin, A. Letessier-Selvon, E. Tsesmelis, Caren Hagner, H. Zaccone, L. La Rotonda, D. Gibin, Artem Chukanov, J.-M. Vieira, D. Daniels, Claus Gößling, Giacomo Polesello, M. Gouanère, A. Polyarush, M. Tareb-Reyes, H. Degaudenzi, C. Joseph, Achim Geiser, G. J. Feldman, M. Mezzetto, D. Sillou, S.R. Mishra, Kai Zuber, P. Nédélec, Nathalie Besson, G. F. Moorhead, L. Linssen, P. Riemann, A. Cervera-Villanueva, Malcolm Ellis, Frédéric Juget, Chiara Roda, J. Kokkonen, V. Flaminio, D. Pollmann, A. Godley, T. Schmidt, F. J. P. Soler, E. do Couto e Silva, André Rubbia, F.V. Weber, P. Astier, Marco Laveder, C. Lachaud, L. Camilleri, Domizia Orestano, A. Krasnoperov, D. Steele, Giacomo Graziani, F. Martelli, M. Veltri, E. Iacopini, J.J. Gómez-Cadenas, T. Weisse, U. Stiegler, M. Contalbrigo, A. Marchionni, N. Kent, D. Autiero, E. Naumova, Vincenzo Cavasinni, A. Placci, Marco Fraternali, O. Klimov, A. De Santo, Valerio Vercesi, J. Long, A. Kovzelev, J.-M. Levy, K. Benslama, Dmitry V. Naumov, D. Shih, C. Nguyen-Mau, A. Sconza, T. Del Prete, J. Bouchez, G. Vidal-Sitjes, T. Dignan, M. Valdata-Nappi, A. Lanza, A. Lupi, M. T. Tran, S.N. Tovey, Roberto Ferrari, Fr Pastore, E. Gangler, J. Rico, Didier Ferrere, Bruce Yabsley, X. Méchain, Sergei Gninenko, G. Bassompierre, C. Conta, B. Schmidt, G. Conforto, S. Boyd, B. Lakić, K. Schahmaneche, F. Bobisut, G. N. Taylor, H. Pessard, J. Dumarchez, Vyacheslav Valuev, F. Vannucci, J.M. Gaillard, V. Tereshchenko, D. Hubbard, P. Zuccon, Yu. Nefedov, L. Vacavant, A.-M. Touchard, B. A. Popov, T.M. Hong, R. Petti, Stefano Lacaprara, Fergus Wilson, G. Collazuol, Mario Stipčević, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), 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), NOMAD, Naumov, D, Chukanov, A, Naumova, E, Popov, B, Astier, P, Autiero, D, Baldisseri, A, Baldo Ceolin, M, Banner, M, Bassompierre, G, Benslama, K, Besson, N, Bird, I, Blumenfeld, B, Bobisut, F, Bouchez, J, Boyd, S, Bueno, A, Bunyatov, S, Camilleri, L, Cardini, A, Cattaneo, Pw, Cavasinni, V, Cervera Villanuaeva, A, Challis, R, Collazuol, G, Conforto, G, Conta, C, Contalbrigo, M, Cousins, R, Daniels, D, Das, R, Degaudenzi, H, Del Prete, T, De Santo, A, Dignan, T, Di Lella, L, Silva, Ed, Dumarchez, J, Ellis, M, Feldman, Gj, Ferrari, R, Ferrere, D, Flaminio, V, Fraternali, M, Gaillard, Jm, Gangler, E, Geiser, A, Geppert, D, Gibin, D, Gninenko, S, Godley, A, Gomez Cadenas, Jj, Gosset, J, Gossling, C, Gouanere, M, Grant, A, Graziani, G, Guglielmi, A, Hagner, C, Hernando, J, Hong, Tm, Hubbard, D, Hurst, P, Hyett, N, Iacopini, E, Joseph, C, Juget, F, Kent, N, Kirsanov, M, Klimov, O, Kokkonen, J, Kovzelev, A, Krasnoperov, A, Lacaprara, S, Lachaud, C, Lakic, B, Lanza, A, La Rotonda, L, Laveder, M, Letessier Selvon, A, Levy, Jm, Linssen, L, Ljubicic, A, Long, J, Lupi, A, Lyubushkin, V, Marchionni, A, Martelli, F, Mechain, X, Mendiburu, Jp, Meyer, Jp, Mezzetto, M, Mishra, Sr, Moorhead, Gf, Nedelec, P, Nefedov, Y, Nguyen Mau, C, Orestano, Domizia, Pastore, F, Peak, L, Pennacchio, E, Pessard, H, Petti, R, Placci, A, Polesello, G, Pollmann, D, Polyarush, A, Poulsen, C, Rebuffi, L, Rico, J, Riemann, P, Roda, C, Rubbia, A, Salvatore, F, Schahmaneche, K, Schmidt, B, Schmidt, T, Sconza, A, Sevior, M, Shih, D, Sillou, D, Soler, Fjp, Sozzi, G, Steele, D, Stiegler, U, Stipcevic, M, Stolarczyk, T, Tareb Reyes, M, Taylor, Gn, Tereshchenko, V, Toropin, A, Touchard, Am, Tovey, Sn, Tran, Mt, Tsesmelis, E, Ulrichs, J, Vacavant, L, Valdata Nappi, M, Valuev, V, Vannucci, F, Varvell, Ke, Veltri, M, Vercesi, V, Vidal Sitjes, G, Vieira, Jm, Vinogradova, T, Weber, Fv, Weisse, T, Wilson, Ff, Winton, Lj, Yabsley, Bd, Zaccone, H, Zuber, K, and Zuccon, P.

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Strange quark, Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hyperon, FOS: Physical sciences, Sigma, Física, Lambda, Polarization (waves), 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutrino, 010306 general physics, Nuclear Experiment, Particle Physics - Experiment
Abstract

Results of a detailed study of strange particle production in neutrino neutral current interactions are presented using the data from the NOMAD experiment. Integral yields of neutral strange particles (K0s, Lambda, Lambda-bar) have been measured. Decays of resonances and heavy hyperons with an identified K0s or Lambda in the final state have been analyzed. Clear signals corresponding to K* and Sigma(1385) have been observed. First results on the measurements of the Lambda polarization in neutral current interactions have been obtained., Accepted for publication in Nuclear Physics B as a rapid communication

Published
2004

37. Bose-Einstein correlations in charged current muon-neutrino interactions in the NOMAD experiment at CERN

Author

J.-P. Mendiburu, D. Geppert, Alessandro Cardini, P.W. Cattaneo, Ante Ljubičić, H. Zaccone, C. Joseph, S.N. Tovey, Didier Ferrere, Fr Pastore, C. Hagner, Sergei Gninenko, P. Hurst, L. Di Lella, K. Benslama, A. Lanza, M. T. Tran, André Rubbia, R. Challis, E. Gangler, V. V. Lyubushkin, S.A. Bunyatov, Marco Laveder, Barry Blumenfeld, L. S. Peak, M. Kirsanov, Vyacheslav Valuev, E. Iacopini, Th. Stolarczyk, J. Bouchez, V. Tereshchenko, Vincenzo Cavasinni, E. Pennacchio, G. Bassompierre, A. Lupi, M. E. Sevior, D. Steele, N. Hyett, Antonio Bueno, A. N. Toropin, Yu. Nefedov, L. Vacavant, A. Baldisseri, O. Klimov, B. A. Popov, J. Kokkonen, A. Krasnoperov, S. Boyd, B. Lakić, J. Long, C. Nguyen-Mau, D. Hubbard, P. Zuccon, G. N. Taylor, R. Cousins, T. Del Prete, K. Schahmaneche, Caroline Poulsen, C. Conta, J.-M. Vieira, V. Flaminio, E. Tsesmelis, M. Gouanère, B. Schmidt, Roberto Ferrari, A. Letessier-Selvon, Kevin Varvell, G. Polesello, A. Marchionni, Domizia Orestano, F. J. P. Soler, G. Conforto, Marco Fraternali, T. Schmidt, J.M. Gaillard, H. Degaudenzi, G. J. Feldman, H. Pessard, P. Astier, Bruce Yabsley, X. Méchain, M. Contalbrigo, A. Grant, T. Dignan, G. Collazuol, Mario Stipčević, L. Linssen, R. Zei, D. Daniels, C. Lachaud, G. F. Moorhead, D. Pollmann, E. do Couto e Silva, M. Valdata-Nappi, J. M. Levy, A. Sconza, M. Tareb-Reyes, J. Dumarchez, F.V. Weber, F. Bobisut, Giacomo Graziani, S.R. Mishra, R. Petti, Stefano Lacaprara, Fergus Wilson, D. Autiero, Frédéric Juget, Chiara Roda, J. Rico, Luca Rebuffi, Valerio Vercesi, Artem Chukanov, L.J. Winton, Dmitry V. Naumov, Claus Gößling, J. Ulrichs, T. Vinogradova, M. Mezzetto, D. Sillou, Kai Zuber, A. M. Touchard, P. Nédélec, G. Sozzi, A. Placci, A. De Santo, F. Martelli, N. Kent, Malcolm Ellis, J.J. Gómez-Cadenas, F. Salvatore, T. Weisse, U. Stiegler, A. Polyarush, Achim Geiser, J. A. Hernando, A. Cervera-Villanueva, L. Camilleri, J. Gosset, D. Gibin, A. Godley, M. Veltri, J-P. Meyer, L. La Rotonda, A. Guglielmi, A. Kovzelev, I. Bird, P. Riemann, F. Vannucci, M. Banner, G. Vidal-Sitjes, M. Baldo-Ceolin, Nathalie Besson, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), 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), NOMAD, Astier, P, Autiero, D, Baldisseri, A, Baldo Ceolin, M, Banner, M, Bassompierre, G, Benslama, K, Besson, N, Bird, I, Blumenfeld, B, Bobisut, F, Bouchez, J, Boyd, S, Bueno, A, Bunyatov, S, Camilleri, L, Cardini, A, Cattaneo, Pw, Cavasinni, V, Cervera Villanueva, A, Challis, Rc, Chukanov, A, Collazuol, G, Conforto, G, Conta, C, Contalbrigo, M, Cousins, R, Daniels, D, Degaudenzi, H, Del Prete, T, De Santo, A, Dignan, T, Di Lella, L, Silva, Ede, Dumarchez, J, Ellis, M, Feldman, Gj, Ferrari, R, Ferrere, D, Flaminio, V, Fraternali, M, Gaillard, Jm, Gangler, E, Geiser, A, Geppert, D, Gibin, D, Gninenko, S, Godley, A, Gomez Cadenas, Jj, Gosset, J, Gossling, C, Gouanere, M, Grant, A, Graziani, G, Guglielmi, A, Hagner, C, Hernando, J, Hubbard, D, Hurst, P, Hyett, N, Iacopini, E, Joseph, C, Juget, F, Kent, N, Kirsanov, M, Kilmov, O, Kokkonen, J, Kovzelev, A, Krasnoperov, A, Lacaprara, S, Lachaud, C, Lakic, B, Lanza, A, La Rotonda, L, Laveder, M, Letessier Selvon, A, Levy, Jm, Linssen, L, Ljubicic, A, Long, J, Lupi, A, Lyubushkin, V, Marchionni, A, Martelli, F, Mechain, X, Mendiburu, Jp, Meyer, Jp, Mezzetto, M, Mishra, Sr, Moorhead, Gf, Naumov, D, Nedelec, P, Nefedov, Y, Nguyen Mau, C, Orestano, Domizia, Pastore, F, Peak, L, Pennacchio, E, Pessard, H, Petti, R, Placci, A, Polesello, G, Pollmann, D, Polyarush, A, Popov, B, Poulsen, C, Rebuffi, L, Rico, J, Riemann, P, Roda, C, Rubbia, A, Salvatore, F, Schahmaneche, K, Schmidt, B, Schmidt, T, Sconza, A, Sevior, M, Sillou, D, Soler, Fjp, Sozzi, G, Steele, D, Stiegler, U, Stipcevic, M, Stolarczyk, T, Tareb Reyes, M, Taylor, Gn, Tereshchenko, V, Toropin, A, Touchard, Am, Tovey, Sn, Tran, Mt, Tsesmelis, E, Ulrichs, J, Vacavant, L, Valdata Nappi, M, Valuev, V, Vannucci, F, Varvell, Ke, Veltri, M, Vercesi, V, Vidal Sitjes, G, Vieira, Jm, Vinogradova, T, Weber, E, Weisse, T, Wilson, Ff, Winton, Lj, Yabsley, Bd, Zaccone, H, Zei, R, Zuber, K, and Zuccon, P.

Subjects
Nuclear and High Energy Physics, Particle physics, Bose-Einstein, correlations charged current, muon-neutrino interaction, NOMAD, Hadron, FOS: Physical sciences, 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], Muon neutrino, Rapidity, 010306 general physics, Nuclear Experiment, Charged current, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Física, Bose–Einstein correlations, Charged particle, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Particle Physics - Experiment
Abstract

Bose-Einstein Correlations in one and two dimensions have been studied, with high statistics, in charged current muon-neutrino interaction events collected with the NOMAD detector at CERN. In one dimension the Bose-Einstein effect has been analyzed with the Goldhaber and the Kopylov-Podgoretskii phenomenological parametrizations. The Goldhaber parametrization gives the radius of the pion emission region R_G = 1.01+/-0.05(stat)+0.09-0.06(sys) fm and for the chaoticity parameter the value lambda = 0.40+/-0.03(stat)+0.01-0.06(sys). Using the Kopylov-Podgoretskii parametrization yields R_KP = 2.07+/-0.04(stat)+0.01-0.14(sys) fm and lambda_KP = 0.29+/-0.06(stat)+0.01-0.04(sys). Different parametrizations of the long-range correlations have been also studied. The two-dimensional shape of the source has been investigated in the longitudinal co-moving frame. A significant difference between the transverse and the longitudinal dimensions is observed. The high statistics of the collected sample allowed the study of the Bose-Einstein correlations as a function of rapidity, charged particle multiplicity and hadronic energy. A weak dependence of both radius and chaoticity on multiplicity and hadronic energy is found., Comment: 24 pages, 12 figures

Published
2004

38. Search for νμ→νe oscillations in the NOMAD experiment

Author

T. Weisse, André Rubbia, J.-P. Mendiburu, Alessandro Cardini, F. Bobisut, E. Iacopini, P. Astier, O. Klimov, Vincenzo Cavasinni, Roberto Ferrari, Domizia Orestano, M. Contalbrigo, H. Degaudenzi, G. J. Feldman, A. Sconza, F. Salvatore, K. Benslama, G. F. Moorhead, C. Nguyen-Mau, D. Autiero, Th. Stolarczyk, D. Kustov, T. Del Prete, A. Polyarush, H. Pessard, A. Godley, J. Long, Bruce Yabsley, X. Méchain, M. E. Sevior, A. Lanza, Achim Geiser, C. Conta, J. A. Hernando, L. Linssen, Roberto Renò, Valerio Vercesi, B. Schmidt, Giacomo Graziani, E. do Couto e Silva, R. Cousins, T. Dignan, G. Conforto, J.-M. Vieira, M. T. Tran, Dmitry V. Naumov, M. Veltri, D. Pollmann, Barry Blumenfeld, J.M. Gaillard, S.N. Tovey, J. Dumarchez, A. Cervera-Villanueva, Vyacheslav Valuev, E. Gangler, T. Vinogradova, G. Bassompierre, Fr Pastore, L. Camilleri, J. Gosset, H. Zaccone, V. Flaminio, D. Gibin, F. J. P. Soler, S. Boyd, Yu. Nefedov, L. Vacavant, B. Lakić, V. Tereshchenko, G. N. Taylor, Malcolm Ellis, C. Joseph, F.V. Weber, F. Juget, D. Hubbard, P. Zuccon, K. Schahmaneche, J.J. Gómez-Cadenas, M. Baldo-Ceolin, M. Mezzetto, J. Kokkonen, D. Sillou, U. Stiegler, Kai Zuber, Marco Laveder, A. Krasnoperov, C. Göbling, L. La Rotonda, E. Pennacchio, N. Hyett, P. Riemann, D. Steele, M. Gouanère, C. Lachaud, Marco Fraternali, S.R. Mishra, M. Valdata-Nappi, A. Placci, Chiara Roda, A. De Santo, Luca Rebuffi, Kevin Varvell, Artem Chukanov, G. Polesello, J. Rico, A. Marchionni, A. Grant, A. M. Touchard, P. Nédélec, L. S. Peak, Antonio Bueno, A. N. Toropin, D. Geppert, P.W. Cattaneo, Ante Ljubičić, B. A. Popov, J. M. Levy, R. Petti, Stefano Lacaprara, Fergus Wilson, G. Collazuol, Mario Stipčević, F. Vannucci, M. Banner, G. Vidal-Sitjes, Nathalie Besson, A. Letessier-Selvon, Didier Ferrere, D. Daniels, M. Tareb-Reyes, A. Kovzelev, J-P. Meyer, A. Guglielmi, L.J. Winton, Sergei Gninenko, R. Challis, J. Ulrichs, S.A. Bunyatov, G. Sozzi, F. Martelli, N. Kent, I. Bird, A. Baldisseri, Caroline Poulsen, J. Bouchez, P. Hurst, A. Lupi, L. Di Lella, E. Tsesmelis, Caren Hagner, M. Kirsanov, and T. Schmidt

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, 010308 nuclear & particles physics, Oscillation, Neutrino oscillations, Neutrino beam, 01 natural sciences, Nuclear physics, 0103 physical sciences, Energy spectrum, Neutrino, 010306 general physics, Neutrino oscillation, Charged current
Abstract

We present the results of a search for vμ → v e oscillations in the NOMAD experiment at CERN. The experiment looked for the appearance of ve in a predominantly vμ wide-band neutrino beam at the CERN SPS. No evidence for oscillations was found. The 90% confidence limits obtained are Δm2 < 0.4 eV 2 for maximal mixing and sin2(2θ) < 1.4 × 10-3 for large Δm2. This result excludes the LSND allowed region of oscillation parameters with Δm2 ≳ 10 eV2. © 2003 Elsevier B.V. All rights reserved.

Published
2003

39. Prediction of neutrino fluxes in the NOMAD experiment

Author

André Rubbia, J. Bouchez, J.-M. Levy, A. Lupi, E. Iacopini, A. Godley, Caroline Poulsen, M. Veltri, K. Schahmaneche, Vincenzo Cavasinni, J. A. Hernando, J. Rico, Alexander Toropin, Malcolm Ellis, Didier Ferrere, J. Dumarchez, R. Petti, G. Vidal-Sitjes, D. Steele, L. S. Peak, Fergus Wilson, O.L. Klimov, J. Long, E Silva E. Do Couto, Sergei Gninenko, D. Autiero, J.J. Gómez-Cadenas, Marco Fraternali, A. Letessier-Selvon, L. Linssen, U. Stiegler, A. Cervera-Villanueva, Antonio Bueno, D. Pollmann, K. Benslama, F. Salvatore, L. Camilleri, T. Stolarczyk, D. Daniels, P. Hurst, Giacomo Polesello, M. Tareb-Reyes, Kevin Varvell, E. Tsesmelis, Valerio Vercesi, Domizia Orestano, M. T. Tran, A. Marchionni, L. Di Lella, Caren Hagner, T. Dignan, L. La Rotonda, F.V. Weber, J. Gosset, C. Nguyen-Mau, Vyacheslav Valuev, P. Riemann, T. Weisse, A. Grant, Dmitry V. Naumov, M. Valdata-Nappi, E. Gangler, Alexey Krasnoperov, H. Pessard, P. Nedelec, D. Gibin, M. Baldo-Ceolin, M. Banner, T. Schmidt, A.-M. Touchard, G. Collazuol, Mario Stipčević, P. Astier, T. Del Prete, J-P. Meyer, A. Polyarush, L.J. Winton, J. Ulrichs, H. Degaudenzi, A. Kovzelev, G. J. Feldman, F. Vannucci, Achim Geiser, D. Geppert, G. F. Moorhead, P.W. Cattaneo, Ante Ljubičić, E. Pennacchio, Mikhail Kirsanov, R. Cousins, I. Bird, S.A. Bunyatov, G. Sozzi, S.R. Mishra, Yu. Nefedov, L. Vacavant, T. Vinogradova, D. Hubbard, D. Sillou, J.-M. Vieira, J.M. Gaillard, N. Hyett, A. Guglielmi, Frédéric Juget, Chiara Roda, A. Lanza, V. Tereshchenko, C. Lachaud, Giacomo Graziani, C. Conta, A. Baldisseri, Michel Gouanère, G. Bassompierre, B. A. Popov, B. Schmidt, M. Mezzetto, Kai Zuber, M. Contalbrigo, F. Martelli, A. Placci, N. Kent, H. Zaccone, G. Conforto, S. Boyd, A. De Santo, Nathalie Besson, B. Lakić, G. N. Taylor, C. Joseph, F. Bobisut, V. Flaminio, F. J. P. Soler, Marco Laveder, R. Challis, S.N. Tovey, Fr Pastore, J.-P. Mendiburu, Claus Gössling, Alessandro Cardini, Barry Blumenfeld, J. Kokkonen, M. E. Sevior, Roberto Ferrari, Bruce Yabsley, X. Méchain, 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 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), and NOMAD

Subjects
Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Neutrino oscillation, Instrumentation, Charged current, Physics, Neutral current, 010308 nuclear & particles physics, Detector, High Energy Physics::Phenomenology, Física, Solar neutrino problem, Magnetic field, Beamline, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment
Abstract

The method developed for the calculation of the flux and composition of the West Area Neutrino Beam used by NOMAD in its search for neutrino oscillations is described. The calculation is based on particle production rates computed using a recent version of FLUKA and modified to take into account the cross sections measured by the SPY and NA20 experiments. These particles are propagated through the beam line taking into account the material and magnetic fields they traverse. The neutrinos produced through their decays are tracked to the NOMAD detector. The fluxes of the four neutrino flavours at NOMAD are predicted with an uncertainty of about 8% for nu(mu) and nu(e), 10% for antinu(mu), and 12% for antinu(e). The energy-dependent uncertainty achieved on the R(e, mu) prediction needed for a nu(mu)->nu(e) oscillation search ranges from 4% to 7%, whereas the overall normalization uncertainty on this ratio is 4.2%., 43 pages, 20 figures. Submitted to Nucl. Phys. B

Published
2003

40. A study of strange particle production in nu(mu) charged current interactions in the NOMAD experiment

Author

E. Pennacchio, N. Hyett, J.-M. Levy, Barry Blumenfeld, P. Astier, Alexander Toropin, L. S. Peak, Malcolm Ellis, Antonio Bueno, J.J. Gómez-Cadenas, A. Polyarush, H. Zaccone, J. Long, Didier Ferrere, M. E. Sevior, C. Joseph, Achim Geiser, Domizia Orestano, S.N. Tovey, Fr Pastore, Mikhail Kirsanov, R. Cousins, G. Bassompierre, Marco Laveder, J.-M. Vieira, T. Del Prete, M. Contalbrigo, L. La Rotonda, Sergei Gninenko, R. Challis, S.A. Bunyatov, T. Dignan, K. Schahmaneche, T. Vinogradova, S. Boyd, B. Lakić, P. Riemann, G. N. Taylor, J. A. Hernando, D. Kustov, Vyacheslav Valuev, Roberto Ferrari, F. Juget, Alexey Krasnoperov, A. Baldisseri, D. Geppert, E. Tsesmelis, Caren Hagner, M. Baldo-Ceolin, F. Vannucci, M. Banner, Bruce Yabsley, X. Méchain, P.W. Cattaneo, Ante Ljubičić, C. Conta, A. Lanza, E Silva E. Do Couto, L. Linssen, T. Schmidt, B. Schmidt, J. Kokkonen, A. Cervera-Villanueva, P. Zuccon, R. Petti, Stefano Lacaprara, D. Steele, A. Kovzelev, L. Camilleri, A.-M. Touchard, D. Pollmann, Fergus Wilson, André Rubbia, T. Weisse, T. Stolarczyk, A. Godley, V. Tereshchenko, E. Iacopini, G. Conforto, J.M. Gaillard, Vincenzo Cavasinni, M. Veltri, F.V. Weber, J. Dumarchez, M. T. Tran, Kevin Varvell, E. Gangler, M. Mezzetto, Kai Zuber, F. Salvatore, G. Collazuol, A. Grant, Mario Stipčević, J. Bouchez, H. Pessard, P. Nedelec, C. Gössling, A. Lupi, J.-P. Mendiburu, Valerio Vercesi, B. A. Popov, H. Degaudenzi, Alessandro Cardini, Dmitry V. Naumov, G. J. Feldman, G. F. Moorhead, C. Lachaud, F. Bobisut, Giacomo Graziani, U. Stiegler, J. Gosset, D. Gibin, V. Flaminio, F. J. P. Soler, O.L. Klimov, T. Fazio, D. Autiero, Yu. Nefedov, L. Vacavant, A. Placci, A. De Santo, S.R. Mishra, Chiara Roda, Caroline Poulsen, P. Hurst, L. Di Lella, M. Valdata-Nappi, D. Sillou, A. Guglielmi, J. Rico, A. Marchionni, Nathalie Besson, Marco Fraternali, I. Bird, G. Vidal-Sitjes, Valentin Kuznetsov, J-P. Meyer, L.J. Winton, J. Ulrichs, A. Letessier-Selvon, D. Daniels, Giacomo Polesello, M. Tareb-Reyes, Michel Gouanère, F. Martelli, and N. Kent

Subjects
Physics, Nuclear and High Energy Physics, Strange quark, Particle physics, 010308 nuclear & particles physics, Star (game theory), Hadron, Hyperon, Física, Lambda, 01 natural sciences, Nuclear physics, 0103 physical sciences, neutrino interactions, strange particle production, Production (computer science), High Energy Physics::Experiment, Neutrino, 010306 general physics, Nuclear Experiment, Charged current, Particle Physics - Experiment
Abstract

A study of strange particle production in $\nu_\mu$ charged current interactions has been performed using the data from the NOMAD experiment. Yields of neutral strange particles ($K^0_s, \Lambda, \bar{\Lambda}$) have been measured. Mean multiplicities are reported as a function of the event kinematic variables $E_\nu$, $W^2$ and $Q^2$ as well as of the variables describing particle behaviour within a hadronic jet: $x_F$, $z$ and $p_T^2$. Decays of resonances and heavy hyperons with identified $K^0_s$ and $\Lambda$ in the final state have been analyzed. Clear signals corresponding to $\rm {K^\star}^\pm$ $\rm {\Sigma^\star}^\pm$, $\rm \Xi^-$ and $\rm \Sigma^0$ have been observed. A study of strange particle production in ν μ charged current interactions has been performed using the data from the NOMAD experiment. Yields of neutral strange particles ( K 0 s ,Λ, Λ ̄ ) have been measured. Mean multiplicities are reported as a function of the event kinematic variables E ν , W 2 and Q 2 as well as of the variables describing particle behaviour within a hadronic jet: x F , z and p T 2 . Decays of resonances and heavy hyperons with identified K 0 s and Λ in the final state have been analyzed. Clear signals corresponding to K ★± , Σ ★± , Ξ − and Σ 0 have been observed. A study of strange particle production in muon neutrino charged current interactions has been performed using the data from the NOMAD experiment. Yields of neutral strange particles K0s, Lambda, AntiLambda have been measured. Mean multiplicities are reported as a function of the event kinematic variables Enu, W2 and Q2 as well as of the variables describing particle behaviour within a hadronic jet: xF, z and pT2. Decays of resonances and heavy hyperons with identified K0s and Lambda in the final state have been analyzed. Clear signals corresponding to K*+-, Sigma*+-, Xi- and Sigma0 have been observed.

Published
2002

41. Study of D*+ production in nu_mu charged current interactions in the NOMAD experiment

Author

Mikhail Kirsanov, R. Cousins, J.-M. Vieira, Alexander Toropin, L. S. Peak, F. Juget, Domizia Orestano, M. Contalbrigo, Artem Chukanov, André Rubbia, P. Hurst, B. Schmidt, Antonio Bueno, T. Weisse, L. Di Lella, K. Benslama, Valentin Kuznetsov, O.L. Klimov, E. Iacopini, J.-P. Mendiburu, M. Valdata-Nappi, Vincenzo Cavasinni, J-P. Meyer, V. Flaminio, F. J. P. Soler, Vyacheslav Valuev, Didier Ferrere, Alessandro Cardini, T. Vinogradova, I. Bird, M. T. Tran, A. Godley, L.J. Winton, D. Geppert, F. Vannucci, P.W. Cattaneo, Ante Ljubičić, H. Degaudenzi, G. J. Feldman, M. Veltri, J. A. Hernando, K. Schahmaneche, Sergei Gninenko, J. Ulrichs, Kevin Varvell, A. Lanza, G. F. Moorhead, E. Gangler, D. Hubbard, P. Zuccon, E. do Couto e Silva, F. Salvatore, R. Petti, Stefano Lacaprara, Fergus Wilson, A. Placci, A.-M. Touchard, A. De Santo, L. La Rotonda, G. Sozzi, J. Rico, A. Marchionni, J. Long, A. Cervera-Villanueva, A. Grant, H. Pessard, R. Challis, C. Lachaud, A. Kovzelev, L. Camilleri, Caroline Poulsen, S.A. Bunyatov, P. Nedelec, P. Riemann, Giacomo Graziani, J. Bouchez, A. Lupi, Alexey Krasnoperov, Marco Fraternali, M. Baldo-Ceolin, G. Collazuol, M. Banner, V. Tereshchenko, A. Baldisseri, J. Dumarchez, D. Steele, A. Geiser, Mario Stipčević, S.R. Mishra, G. Vidal-Sitjes, A. Letessier-Selvon, Barry Blumenfeld, T. Dignan, F. Bobisut, D. Daniels, Th. Stolarczyk, Giacomo Polesello, Chiara Roda, E. Tsesmelis, Caren Hagner, H. Zaccone, M. Tareb-Reyes, T. Schmidt, Malcolm Ellis, B. A. Popov, C. Joseph, M. E. Sevior, J.J. Gómez-Cadenas, Michel Gouanère, J.M. Gaillard, M. Mezzetto, Kai Zuber, F. Martelli, Marco Laveder, N. Kent, Valerio Vercesi, Dmitry V. Naumov, Yu. Nefedov, L. Vacavant, E. Pennacchio, N. Hyett, Claus Gößling, D. Kustov, C. Conta, G. Conforto, G. Bassompierre, J. Kokkonen, S. Boyd, B. Lakić, G. N. Taylor, S.N. Tovey, Fr Pastore, Roberto Ferrari, C. Nguyen-Mau, T. Del Prete, Bruce Yabsley, X. Méchain, J.-M. Levy, P. Astier, D. Autiero, L. Linssen, D. Pollmann, F.V. Weber, T. Fazio, D. Sillou, A. Guglielmi, U. Stiegler, Nathalie Besson, J. Gosset, D. Gibin, and A. Polyarush

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Phenomenology, Hadron, Física, Nuclear physics, Fragmentation function, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Neutrino, Nuclear Experiment, Particle Physics - Experiment, Astrophysics::Galaxy Astrophysics, Charged current
Abstract

A search was made among $\nu_\mu$ charged current events collected in the NOMAD experiment for the reaction: $\nu_\mu + N \rightarrow \mu^- + D^{\star+} + hadrons \hookrightarrow D^0 + \pi^+ \hookrightarrow K^- + \pi^+ A $D^{\star+}$ sample composed of 47 events, with 90% purity, was extracted. The $D^{\star+}$ yield in $\nu_\mu$ charged current interactions was measured to be $T = (0.99 \pm 0.15(stat.) \pm 0.11(syst.))$%. The mean fraction of the hadronic jet energy taken by the $D^{\star+}$ is $0.67 \pm 0.02(stat) \pm 0.02(syst.)$. The distributions of the fragmentation variables $z$, ${P_{T}}^2$ and $x_F$ for $D^{\star+}$ are also presented.

Published
2002

42. Neutrino production of opposite sign dimuons in the NOMAD experiment

Author

Malcolm Ellis, J.J. Gómez-Cadenas, E. Manola-Poggioli, Alexey Krasnoperov, F. Salvatore, M. K. Vo, M. Baldo-Ceolin, K. Benslama, O.L. Klimov, T. Vinogradova, S. Tereshchenko, M. Mezzetto, E. do Couto e Silva, J. Long, Kai Zuber, J. Dumarchez, Vyacheslav Valuev, J. Bouchez, B. A. Popov, M. T. Tran, C. Nguyen-Mau, T. Del Prete, A. Lupi, J. M. Gaillard, D. Hubbard, P. Zuccon, K. Schahmaneche, D. Verkindt, Caroline Poulsen, R. Cousins, A. Marchionni, A. Godley, J.-M. Vieira, P. Astier, T. Dignan, P. Hurst, S.R. Mishra, E. Tsesmelis, Caren Hagner, L. Di Lella, M. Valdata-Nappi, I. Bird, T. Schmidt, F. Juget, M. Veltri, A. Kovzelev, Chiara Roda, A. Letessier-Selvon, Domizia Orestano, G. Collazuol, Mario Stipčević, M. E. Sevior, F. Bobisut, D. Daniels, Giacomo Polesello, A. Pluquet, M. Tareb-Reyes, Valentin Kuznetsov, M. Contalbrigo, J-P. Meyer, J.-P. Mendiburu, A. Placci, L. La Rotonda, Alessandro Cardini, Kevin Varvell, S.N. Tovey, L.J. Winton, M. Kirsanov, E. Pennacchio, N. Hyett, Fr Pastore, André Rubbia, A. Grant, H. Pessard, P. Nedelec, J. Ulrichs, E. Iacopini, A. De Santo, Vincenzo Cavasinni, G. Sozzi, Barry Blumenfeld, C. Conta, Claus Gößling, B. Schmidt, G. Conforto, Michel Gouanère, J. Kokkonen, F. Martelli, Nathalie Besson, J. A. Hernando, D. Steele, L. Mossuz, D. Sillou, R. Petti, A. Guglielmi, M. Steininger, Roberto Ferrari, J. M. Levy, A. Lanza, Stefano Lacaprara, Fergus Wilson, G. Bassompierre, S. Boyd, B. Lakić, G. N. Taylor, Giacomo Graziani, Yu. Nefedov, L. Vacavant, A. Cervera-Villanueva, Bruce Yabsley, X. Méchain, L. Camilleri, H. Degaudenzi, G. J. Feldman, G. F. Moorhead, D. Autiero, A. M. Touchard, V. Flaminio, F. J. P. Soler, A. Polyarush, Achim Geiser, T. Weisse, P. Rathouit, Marco Fraternali, L. Linssen, J. Gosset, Didier Ferrere, Sergei Gninenko, D. Pollmann, D. Gibin, T. Stolarczyk, F.V. Weber, F. Vannucci, M. Banner, Antonio Bueno, A. N. Toropin, U. Stiegler, T. Fazio, H. Zaccone, E. Gangler, D. Geppert, C. Joseph, P.W. Cattaneo, Ante Ljubičić, L.S. Peak, S.A. Bunyatov, A. Baldisseri, G. Ballocchi, Marco Laveder, Valerio Vercesi, 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), NOMAD, and BOMBAR, Claudine

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, Branching fraction, Order (ring theory), Física, 01 natural sciences, Charm quark, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Production (computer science), Neutrino, 010306 general physics, Nucleon, Particle Physics - Experiment, Energy (signal processing)
Abstract

The NOMAD Collaboration presents a study of opposite sign dimuon events in the framework of Leading Order QCD. A total of 2714 neutrino- and 115 antineutrino-induced opposite sign dimuon events with $E_{\mu 1}, E_{\mu 2} > 4.5$ GeV, $15 < E_{\nu} < 300$ GeV and $Q^{2} > 1\;(\mbox{GeV}/\mbox{c})^{2}$ are observed %in the data from the 1995 and 1996 runs. in the Front-Calorimeter of NOMAD during the 1995 and 1996 runs. The analysis yields a value for the charm quark mass of $m_{c} = 1.3^{+0.3\;+0.3}_{-0.3\;-0.3}\;\mbox{GeV}/\m box{c}^{2}$ and for the average semileptonic branching ratio of $B_{c} = 0.095^{+0.007\;+0.014}_{-0.007\;-0.013}$. The ratio of the strange to non-strange sea in the nucleon is measured to be $\kappa = 0.48^{+0.09 +0.17}_{-0.07 -0.12}$. The measured rate of charm-induced dimuon relative to single muon, as a function of neutrino energy, is consistent with the slow rescaling hypothesis of heavy quark production.

Published
2000

43. Search for a new gauge boson in $\pi^{0}$ decays

Author

J. Altegoer, P. Astier, D. Autiero, A. Baldisseri, M. Baldo-Ceolin, G. Ballocchi, M. Banner, S. Basa, G. Bassompierre, K. Benslama, N. Besson, I. Bird, B. Blumenfeld, F. Bobisut, J. Bouchez, S. Boyd, A. Bueno, S. Bunyatov, L. Camilleri, A. Cardini, A. Castera, P.W. Cattaneo, V. Cavasinni, A. Cervera-Villanueva, G.M. Collazuol, G. Conforto, C. Conta, M. Contalbrigo, R. Cousins, D. Daniels, A.De Santo, T.Del Prete, T. Dignan, L.Di Lella, E. do Couto e Silva, I.J. Donnelly, J. Dumarchez, T. Fazio, G.J. Feldman, R. Ferrari, D. Ferrère, V. Flaminio, M. Fraternali, J-M. Gaillard, P. Galumian, E. Gangler, A. Geiser, D. Geppert, D. Gibin, S.N. Gninenko, J-J. Gomez-Cadenas, J. Gosset, C. Gößling, M. Gouanère, A. Grant, G. Graziani, A. Guglielmi, C. Hagner, J. Hernando, D. Hubbard, P. Hurst, N. Hyett, E. Iacopini, C. Joseph, D. Kekez, B. Khomenko, M.M. Kirsanov, O. Klimov, J. Kokkonen, A.V. Kovzelev, V. Kuznetsov, S. Lacaprara, A. Lanza, L. La Rotonda, M. Laveder, A. Letessier-Selvon, J-M. Levy, L. Linssen, A. Ljubičić, J. Long, A. Lupi, E. Manola-Poggioli, A. Marchionni, F. Martelli, X. Méchain, J-P. Mendiburu, J-P. Meyer, M. Mezzetto, S.R. Mishra, G.F. Moorhead, L. Mossuz, P. Nédélec, Yu. Nefedov, C. Nguyen-Mau, D. Orestano, F. Pastore, L.S. Peak, E. Pennacchio, J-P. Perroud, H. Pessard, R. Petti, A. Placci, H. Plothow-Besch, A. Pluquet, G. Polesello, D. Pollmann, B.G. Pope, B. Popov, C. Poulsen, P. Rathouit, C. Roda, A. Rubbia, F. Salvatore, D. Scannicchio, K. Schahmaneche, B. Schmidt, A. Sconza, M. Serrano, M.E. Sevior, D. Sillou, F.J.P. Soler, G. Sozzi, D. Steele, P. Steffen, M. Steininger, U. Stiegler, M. Stipčević, T. Stolarczyk, M. Tareb-Reyes, G.N. Taylor, S. Tereshchenko, A.N. Toropin, A-M. Touchard, S.N. Tovey, M-T. Tran, E. Tsesmelis, J. Ulrichs, V. Uros, M. Valdata-Nappi, V. Valuev, F. Vannucci, K.E. Varvell, M. Veltri, V. Vercesi, D. Verkindt, J-M. Vieira, T. Vinogradova, M-K. Vo, S.A. Volkov, F. Weber, T. Weisse, M. Werlen, F. Wilson, L.J. Winton, B.D. Yabsley, H. Zaccone, and K. Zuber

Subjects
Physics, Nuclear and High Energy Physics, Gauge boson, Particle physics, Large Hadron Collider, Branching fraction, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Física, High Energy Physics - Experiment, Pion, Coulomb, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Primakoff effect, Energy (signal processing), Particle Physics - Experiment
Abstract

A search was made for a new light gauge boson $X$ which might be produced in $\pi^{0}\to\gamma + X$ decay from neutral pions generated by 450-GeV protons in the CERN SPS neutrino target. The X's would penetrate the downstream shielding and be observed in the NOMAD detector via the Primakoff effect, in the process of $X \to\pi^{0}$ conversion in the external Coulomb field of a nucleus. With $1.45\times10^{18}$ protons on target, 20 candidate events with energy between 8 and 140 GeV were found from the analysis of neutrino data. This number is in agreement with the expectation of 18.1$\pm$2.8 background events from standard neutrino processes. A new 90% C.L. upper limit on the branching ratio $Br(\pi^{0}\to\gamma + X)< (3.3 to 1.9) \times10^{-5}$ for $X$ masses ranging from 0 to 120 MeV/c^2 is obtained., Comment: 15 pages, LaTex, 6 eps figures included, submitted to Physics Letters B

Published
1998

44. Pion yield from 450 GeV/c protons on beryllium

Author

F. J. P. Soler, A. Marchionni, V. Palladino, L. Linssen, U. Moser, A. Pullia, K. Borer, Gustaaf Brooijmans, E. Radicioni, J. Schacher, D. Daniels, Stefano Ragazzi, M. G. Catanesi, Giovanna Ambrosini, Alastair Grant, Marc Weber, A. Godley, K. Bernier, Sonia Kabana, L.C. Moffitt, E. Tsesmelis, Fridolin Dittus, F. Terranova, A. Guglielmi, Reiner Klingenberg, S. N. Tovey, K. Elsener, K. Pretzl, W. Bonivento, G. Collazuol, G. Grégoire, F. Stoffel, Cristina Biino, R. Arsenescu, T. Lindén, M. Bonesini, F. Pietropaolo, G. Lehmann, S.R. Mishra, F. Sergiampietri, T. Tabarelli de Fatis, G., Ambrosini, R., Arsenescu, K., Bernier, C., Biino, M., Bonesini, W., Bonivento, K., Borer, G., Brooijman, M. G., Catanesi, G., Collazuol, D., Daniel, F., Dittu, K., Elsener, A., Godley, A., Grant, G., Gregoire, A., Guglielmi, S., Kabana, R., Klingenberg, G., Lehmann, T., Lindén, L., Linssen, A., Marchionni, S. R., Mishra, L., Moffitt, U., Moser, Palladino, Vittorio, F., Pietropaolo, K., Pretzl, A., Pullia, E., Radicioni, S., Ragazzi, J., Schacher, F., Sergiampietri, F. J. P., Soler, F., Stoffel, T., Tabarelli de Fati, F., Terranova, S. N., Tovey, E., Tsesmeli, and M., Weber

Subjects
Nuclear and High Energy Physics, Particle physics, Proton, NEUTRINO OSCILLATIONS, Astrophysics::High Energy Astrophysical Phenomena, chemistry.chemical_element, 7. Clean energy, 01 natural sciences, Momentum, Nuclear physics, Pion, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Physics, Range (particle radiation), 010308 nuclear & particles physics, TARGET, chemistry, Yield (chemistry), Physics::Accelerator Physics, High Energy Physics::Experiment, Beryllium, Neutrino, Particle Physics - Experiment, Beam (structure)
Abstract

This paper reports on the charged pion production yields measured by the SPY/NA56 experiment for 450 GeV/c proton interactions on beryllium targets. The present data cover a secondary momentum range from 7 GeV/c to 135 GeV/c in the forward direction. An experimental accuracy ranging from 5 to 10\%, depending on the beam momentum, has been achieved, limited mainly by the knowledge of the beam acceptance. These results will be relevant in the calculation of neutrino fluxes in present and future neutrino beams.

Published
1998

45. Design, implementation and first measurements with the Medipix2-MXR detector at the Compact Muon Solenoid experiment

Author

A Ball, A Bell, A Butler, P Butler, R Hall-Wilton, J Hegeman, S Lansley, G Keen, D Krofcheck, S Mueller, A Macpherson, D Pfeiffer, S Pospisil, H Silverwood, E Tsesmelis, and Z Vykydal

Subjects
Physics, Large Hadron Collider, Luminosity (scattering theory), Physics::Instrumentation and Detectors, Neutron flux, Nuclear engineering, Detector, Radiation monitoring, Neutron, Medipix, Radiation, Instrumentation, Mathematical Physics
Abstract

The Medipix detector is the first device dedicated to measuring mixed-field radiation in the CMS cavern and able to distinguish between different particle types. Medipix2-MXR chips bump bonded to silicon sensors with various neutron conversion layers developed by the IEAP CTU in Prague were successfully installed for the 2008 LHC start-up in the CMS experimental and services caverns to measure the flux of various particle types, in particular neutrons. They have operated almost continuously during the 2010 run period, and the results shown here are from the proton run between the beginning of July and the end of October 2010. Clear signals are seen and different particle types have been observed during regular LHC luminosity running, and an agreement in the measured flux rate is found with the simulations. These initial results are promising, and indicate that these devices have the potential for further and future LHC and high energy physics applications as radiation monitoring devices for mixed field environments, including neutron flux monitoring. Further extensions are foreseen in the near future to increase the performance of the detector and its coverage for monitoring in CMS.

Published
2011

46. A search for new intermediate vector bosons and excited quarks decaying to two-jets at the CERN $\overline{p}$p collider

Author

M. Moniez, V. Simak, S. L. Singh, J. Incandela, Daniel Froidevaux, M. Curatolo, K. Meier, Steinar Stapnes, Andrea Dell'Acqua, Alan Poppleton, S. Lami, Giovanni Carboni, R. S. DeWolf, E. Tsesmelis, E. Hugentobler, M. Valdata-Nappi, Livio Mapelli, C. Onions, V. G. Goggi, Valerio Vercesi, R. Moning, Gary F. Egan, O. Gildemeister, H. Hufnagel, F. Gianotti, E. Pennacchio, D. J. Munday, J.M. Pentney, P. Petroff, Karl Jakobs, Michael Andrew Parker, F. Pastore, Francesca Nessi-Tedaldi, A. Cravero, J. Schacher, P. Cenci, K. Hara, D. Cavalli, Adele Rimoldi, Darien Wood, M. Primavera, H. Plothow-Besch, Roberto Ferrari, P. Lubrano, G. Parrour, L. Linssen, Giovanna Ambrosini, A. Zylberstejn, J. Hřivnáč, Michel Lefebvre, M. Bourliaud, Paola Scampoli, L. Mandelli, T. DelPrete, Andrea Federspiel, J. C. Chollet, Marco Fraternali, S. N. Tovey, D. Autiero, B. Merkel, Giacomo Polesello, Paolo Lariccia, P. Bonamy, J.-M. Gaillard, T. Pal, C. Conta, Luca Cozzi, Laura Perini, S. Grünendahl, A. R. Weidberg, I.A. Bertram, N. Kurz, H. Zaccone, Klaus Peter Pretzl, Marzio Nessi, L. Malgeri, J. P. Repellin, Kevin Einsweiler, F. Tondini, Sten Hellman, V. Sondermann, Cinzia Talamonti, K. Borer, P. Bareyre, L. Müller, Y. Ducros, E. Iacopini, J-P. Meyer, Chariclia Petridou, S. A. Wotton, K. Hultqvist, T. O. White, Louis Fayard, L. DiLella, Marcello Mazzanti, R. Ansari, Massimiliano F. Sacchi, G. Blaylock, Peter Jenni, R. Spiwoks, Claus Gössling, Vincenzo Cavasinni, M. Pepe, G. Unal, B. Esposito, D. Buskulic, E. E. Kluge, J. Alitti, M. Morganti, B. Schmidt, F. Costantini, Michele Livan, M. Punturo, G. Fumagalli, G. Costa, C. Magneville, and P. S. Wells

Subjects
Condensed Matter::Quantum Gases, Quark, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, High Energy Physics::Phenomenology, Fermion, Vector boson, Standard Model, Nuclear physics, W and Z bosons, High Energy Physics::Experiment, Invariant mass, Particle Physics - Experiment, Boson
Abstract

The two-jet invariant mass spectrum as measured in the UA2 experiment is used to search for additional heavy vector bosons decaying to two-jets. The mass of an additional W boson that couples to fermions with a V + A form is constrained to be greater than 261 GeV to the 90% confidence level. A limit on the production cross section of additional W and Z bosons is given as a function of the boson mass. A limit on the production of excited quarks is also given as a function of the excited quark mass.

Published
1993

47. A Measurement of Single and Double Prompt Photon Production At the Cern P(bar)p Collider

Author

L. Mandelli, T. DelPrete, J-P. Meyer, Chariclia Petridou, A. R. Weidberg, J. Hřivnáč, Kevin Einsweiler, Giovanna Ambrosini, Y. Ducros, Marcello Mazzanti, H. Zaccone, Gary F. Egan, F. Tondini, C. Onions, P. Petroff, Karl Jakobs, J.-M. Gaillard, Francesca Nessi-Tedaldi, G. Blaylock, S. N. Tovey, Giovanni Carboni, A. Cravero, P. Bareyre, P. Cenci, Roberto Ferrari, I.A. Bertram, V. Simak, O. Gildemeister, Claus Gössling, J. C. Chollet, G. Parrour, F. Pastore, S. L. Singh, Cinzia Talamonti, Valerio Vercesi, F. Gianotti, D. Cavalli, Adele Rimoldi, R. Ansari, P. Lubrano, Sten Hellman, L. Linssen, M. Primavera, Steinar Stapnes, R. S. DeWolf, L. Malgeri, T. Pal, E. Pennacchio, S. Grünendahl, F. Costa, Massimiliano F. Sacchi, A. Zylberstejn, P. Bonamy, G. Polesello, T. O. White, K. Borer, N. Kurz, Andrea Dell'Acqua, B. Merkel, D. J. Munday, S. Lami, V. Sondermann, P. S. Wells, G. Fumagalli, R. Spiwoks, L. Müller, H. Plothow-Besch, Laura Perini, Klaus Peter Pretzl, M. Pepe, G. Unal, Andrea Federspiel, B. Schmidt, Michel Lefebvre, M. Bourliaud, Paola Scampoli, J. P. Repellin, Paolo Lariccia, Marco Fraternali, Marzio Nessi, H. Hufnagel, B. Esposito, E. E. Kluge, D. Buskulic, Louis Fayard, F. Costantini, S. A. Wotton, K. Hultqvist, M. Curatolo, L. DiLella, Peter Jenni, Alan Poppleton, J. Schacher, Livio Mapelli, Michael Andrew Parker, Darien Wood, M. Morganti, V. G. Goggi, J. Incandela, J.M. Pentney, R. Moning, M. Moniez, K. Hara, C. Conta, Luca Cozzi, D. Autiero, Daniel Froidevaux, K. Meier, E. Tsesmelis, E. Hugentobler, E. Iacopini, M. Valdata-Nappi, Vincenzo Cavasinni, M. Punturo, Michele Livan, J. Alitti, C. Magneville, J., Alitti, G., Ambrosini, R., Ansari, D., Autiero, P., Bareyre, I. A., Bertram, G., Blaylock, P., Bonamy, K., Borer, M., Bourliaud, D., Buskulic, G., Carboni, D., Cavalli, V., Cavasinni, P., Cenci, J. C., Chollet, C., Conta, G., Costa, F., Costantini, L., Cozzi, A., Cravero, M., Curatolo, A., Dellacqua, T., Delprete, R. S., Dewolf, L., Dilella, Y., Ducro, G. F., Egan, K. F., Einsweiler, B., Esposito, L., Fayard, A., Federspiel, R., Ferrari, M., Fraternali, D., Froidevaux, G., Fumagalli, J. M., Gaillard, F., Gianotti, O., Gildemeister, C., Gossling, V. G., Goggi, S., Grunendahl, K., Hara, S., Hellman, J., Hrivnac, H., Hufnagel, E., Hugentobler, K., Hultqvist, E., Iacopini, J., Incandela, K., Jakob, P., Jenni, E. E., Kluge, N., Kurz, S., Lami, P., Lariccia, M., Lefebvre, L., Linssen, M., Livan, P., Lubrano, C., Magneville, L., Malgeri, L., Mandelli, L., Mapelli, M., Mazzanti, K., Meier, B., Merkel, J. P., Meyer, M., Moniez, R., Moning, M., Morganti, L., Muller, D. J., Munday, M., Nessi, F., Nessitedaldi, C., Onion, T., Pal, M. A., Parker, G., Parrour, F., Pastore, E., Pennacchio, J. M., Pentney, M., Pepe, L., Perini, C., Petridou, P., Petroff, H., Plothowbesch, G., Polesello, A., Poppleton, K., Pretzl, M., Primavera, M., Punturo, J. P., Repellin, A., Rimoldi, M., Sacchi, Scampoli, Paola, J., Schacher, B., Schmidt, V., Simak, S. L., Singh, V., Sondermann, R., Spiwok, S., Stapne, C., Talamonti, F., Tondini, S. N., Tovey, E., Tsesmeli, G., Unal, M., Valdatanappi, V., Vercesi, A. R., Weidberg, P. S., Well, T. O., White, D. R., Wood, S. A., Wotton, H., Zaccone, and A., Zylberstejn

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Photon, Luminosity (scattering theory), Large Hadron Collider, Astrophysics::High Energy Astrophysical Phenomena, TRANSVERSE-MOMENTUM, Perturbative QCD, QCD, Standard deviation, lcsh:QC1-999, law.invention, Nuclear physics, PBARP COLLIDER, law, UA2 EXPERIMENT, High Energy Physics::Experiment, Production (computer science), Collider, SCINTILLATING FIBER DETECTOR, lcsh:Physics, Bar (unit)
Abstract

A measurement of the cross-sections for single and double prompt photon production in p p interactions at s = 630 GeV is presented. The data sample corresponds to an integrated luminosity of 13.2 pb−1. The results are in good agreement with the predictions of perturbative QCD. The signal from double prompt photon production has a statistical significance of 4.3 standard deviations.

Published
1992

48. A Search For Charged Higgs From Top Quark Decay At the Cern (p)bar-p Collider

Author

P. Lubrano, L. Linssen, P. Bonamy, Daniel Froidevaux, Francesca Nessi-Tedaldi, A. Cravero, Claus Gössling, H. Zaccone, Marcello Mazzanti, Marzio Nessi, G. Blaylock, K. Meier, M. Primavera, Julius Hrivnac, O. Gildemeister, Klaus Peter Pretzl, Roberto Ferrari, J. C. Chollet, Laura Perini, Sten Hellman, C. Magneville, A. Zylberstejn, M. Punturo, G. Polesello, C. Conta, K. Borer, Luca Cozzi, T. DelPrete, Alan Poppleton, J. Alitti, R. Spiwoks, M. Moniez, Giovanna Ambrosini, Livio Mapelli, L. Malgeri, T. Pal, G. Unal, G. Parrour, J. P. Repellin, A. R. Weidberg, E. Pennacchio, Michael Andrew Parker, Darien Wood, G. Fumagalli, Michele Livan, B. Merkel, S. Lami, E. E. Kluge, L. Mandelli, B. Esposito, D. Buskulic, A. Dell'Acqua, Giovanni Carboni, V. Simak, I.A. Bertram, P. S. Wells, E. Tsesmelis, B. Schmidt, S. L. Singh, R. Ansari, S. A. Wotton, K. Hultqvist, M. Morganti, L. DiLella, Valerio Vercesi, E. Hugentobler, J. Schacher, D. Autiero, F. Pastore, Massimiliano F. Sacchi, Peter Jenni, Kevin Einsweiler, F. Gianotti, M. Valdata-Nappi, F. Tondini, E. Iacopini, N. Kurz, V. G. Goggi, F. Costantini, Michel Lefebvre, M. Bourliaud, Paola Scampoli, J.M. Pentney, Cinzia Talamonti, C. Onions, Vincenzo Cavasinni, Marco Fraternali, H. Hufnagel, P. Bareyre, K. Hara, P. Petroff, Y. Ducros, Karl Jakobs, G. Costa, M. Curatolo, J. Incandela, J. M. Gaillard, D. Cavalli, Adele Rimoldi, Steinar Stapnes, R. S. DeWolf, T. O. White, R. Moning, D. J. Munday, H. Plothow-Besch, Andrea Federspiel, Paolo Lariccia, S. N. Tovey, J-P. Meyer, Chariclia Petridou, Gary F. Egan, P. Cenci, S. Grünendahl, V. Sondermann, L. Müller, Louis Fayard, M. Pepe, J., Alitti, G., Ambrosini, R., Ansari, D., Autiero, P., Bareyre, I. A., Bertram, G., Blaylock, P., Bonamy, K., Borer, M., Bourliaud, D., Buskulic, G., Carboni, D., Cavalli, V., Cavasinni, P., Cenci, J. C., Chollet, C., Conta, G., Costa, F., Costantini, L., Cozzi, A., Cravero, M., Curatolo, A., Dellacqua, T., Delprete, R. S., Dewolf, L., Dilella, Y., Ducro, G. F., Egan, K. F., Einsweiler, B., Esposito, L., Fayard, A., Federspiel, R., Ferrari, M., Fraternali, D., Froidevaux, G., Fumagalli, J. M., Gaillard, F., Gianotti, O., Gildemeister, C., Gossling, V. G., Goggi, S., Grunendahl, K., Hara, S., Hellman, J., Hrivnac, H., Hufnagel, E., Hugentobler, K., Hultqvist, E., Iacopini, J., Incandela, K., Jakob, P., Jenni, E. E., Kluge, N., Kurz, S., Lami, P., Lariccia, M., Lefebvre, L., Linssen, M., Livan, P., Lubrano, C., Magneville, L., Malgeri, L., Mandelli, L., Mapelli, M., Mazzanti, K., Meier, B., Merkel, J. P., Meyer, M., Moniez, R., Moning, M., Morganti, L., Muller, D. J., Munday, M., Nessi, F., Nessitedaldi, C., Onion, T., Pal, M. A., Parker, G., Parrour, F., Pastore, E., Pennacchio, J. M., Pentney, M., Pepe, L., Perini, C., Petridou, P., Petroff, H., Plothowbesch, G., Polesello, A., Poppleton, K., Pretzl, M., Primavera, M., Punturo, J. P., Repellin, A., Rimoldi, M., Sacchi, Scampoli, Paola, J., Schacher, B., Schmidt, V., Simak, S. L., Singh, V., Sondermann, R., Spiwok, S., Stapne, C., Talamonti, F., Tondini, S. N., Tovey, E., Tsesmeli, G., Unal, M., Valdatanappi, V., Vercesi, A. R., Weidberg, P. S., Well, T. O., White, D. R., Wood, S. A., Wotton, H., Zaccone, and A., Zylberstejn

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Top quark, Particle physics, Large Hadron Collider, LUND MONTE-CARLO, Higgs boson, UA2 EXPERIMENT, SCINTILLATING FIBER DETECTOR, Z0 DECAYS, Conjugate
Abstract

The process t-H+b, H+ --> tau+nu, tau+ --> hadrons + nuBar and its charge conjugate are investigated by seeking an excess in number of observed theta's beyond that expected from the standard model under the assumption of e-tau-universality. No such excess is found and new regions of the m(H)-m(t) plane are excluded for B(H+ --> tau(nu) = 0.5 and 1.O. In addition, the ratio of couplings of the tau and eto the W is precisely measured as g-tau(W)/g-e(W) = 1.02 +/- 0.04(stat.) +/- 0.04(syst.).

Published
1992

49. An Improved Determination of the Ratio of W and Z Masses At the Cern Pbarp Collider

Author

P. Bonamy, Gary F. Egan, H. Zaccone, C. Magneville, Giovanna Ambrosini, Sten Hellman, Michel Lefebvre, M. Bourliaud, Paola Scampoli, D. Cavalli, Marco Fraternali, Michele Livan, K. Borer, Klaus Peter Pretzl, E. Tsesmelis, H. Plothow-Besch, E. Iacopini, B. Schmidt, Adele Rimoldi, E. Hugentobler, M. Valdata-Nappi, C. Onions, M. Primavera, Vincenzo Cavasinni, C. Conta, J-P. Meyer, P. Petroff, A. Zylberstejn, Chariclia Petridou, Luca Cozzi, F. Costantini, Karl Jakobs, Marcello Mazzanti, G. Parrour, Giovanni Carboni, I.A. Bertram, P. S. Wells, M. Punturo, B. Merkel, S. N. Tovey, G. Blaylock, L. Mandelli, J. Alitti, Andrea Federspiel, P. Cenci, Francesca Nessi-Tedaldi, A. Cravero, Valerio Vercesi, F. Pastore, Cinzia Talamonti, S. Grünendahl, F. Gianotti, V. G. Goggi, J.M. Pentney, G. Polesello, T. Pal, Paolo Lariccia, Daniel Froidevaux, V. Sondermann, T. O. White, J. Schacher, K. Meier, K. Hara, T. DelPrete, S. L. Singh, L. Müller, A. R. Weidberg, S. Lami, G. Fumagalli, Kevin Einsweiler, Roberto Ferrari, J. C. Chollet, G. Costa, F. Tondini, P. Bareyre, R. Spiwoks, Steinar Stapnes, R. S. DeWolf, V. Šimák, D. J. Munday, G. Unal, B. Esposito, D. Buskulic, J. Hřivnáč, M. Pepe, S. A. Wotton, K. Hultqvist, L. DiLella, Peter Jenni, Louis Fayard, Michael Andrew Parker, Darien Wood, M. Curatolo, N. Kurz, Claus Gössling, O. Gildermeister, E. Pennacchio, A. Dell'Acqua, D. Autiero, Y. Ducros, R. Ansari, Massimiliano F. Sacchi, Laura Perini, J. P. Repellin, H. Hufnagel, Alan Poppleton, Livio Mapelli, P. Lubrano, L. Linssen, M. Moniez, Marzio Nessi, M. Morganti, J. Incandela, R. Moning, E. E. Kluge, J., Alitti, G., Ambrosini, R., Ansari, D., Autiero, P., Bareyre, I. A., Bertram, G., Blaylock, P., Bonamy, K., Borer, M., Bourliaud, D., Buskulic, G., Carboni, D., Cavalli, V., Cavasinni, P., Cenci, J. C., Chollet, C., Conta, G., Costa, F., Costantini, L., Cozzi, A., Cravero, M., Curatolo, A., Dellacqua, T., Delprete, R. S., Dewolf, L., Dilella, Y., Ducro, G. F., Egan, K. F., Einsweiler, B., Esposito, L., Fayard, A., Federspiel, R., Ferrari, M., Fraternali, D., Froidevaux, G., Fumagalli, J. M., Gaillard, F., Gianotti, O., Gildemeister, C., Gossling, V. G., Goggi, S., Grunendahl, K., Hara, S., Hellman, J., Hrivnac, H., Hufnagel, E., Hugentobler, K., Hultqvist, E., Iacopini, J., Incandela, K., Jakob, P., Jenni, E. E., Kluge, N., Kurz, S., Lami, P., Lariccia, M., Lefebvre, L., Linssen, M., Livan, P., Lubrano, C., Magneville, L., Mandelli, L., Mapelli, M., Mazzanti, K., Meier, B., Merkel, J. P., Meyer, M., Moniez, R., Moning, M., Morganti, L., Muller, D. J., Munday, M., Nessi, F., Nessitedaldi, C., Onion, T., Pal, M. A., Parker, G., Parrour, F., Pastore, E., Pennacchio, J. M., Pentney, M., Pepe, L., Perini, C., Petridou, P., Petroff, H., Plothowbesch, G., Polesello, A., Poppleton, K., Pretzl, M., Primavera, M., Punturo, J. P., Repellin, A., Rimoldi, M., Sacchi, Scampoli, Paola, J., Schacher, B., Schmidt, V., Simak, S. L., Singh, V., Sondermann, R., Spiwok, S., Stapne, C., Talamonti, F., Tondini, S. N., Tovey, E., Tsesmeli, G., Unal, M., Valdatanappi, V., Vercesi, A. R., Weidberg, P. S., Well, T. O., White, D. R., Wood, S. A., Wotton, H., Zaccone, and A., Zylberstejn

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Top quark, Large Hadron Collider, Weinberg angle, Standard Model, law.invention, Nuclear physics, law, PARTON DISTRIBUTIONS, W′ and Z′ bosons, RADIATIVE-CORRECTIONS, Collider
Abstract

The W and Z bosons masses, m(W) and m(Z), are measured using samples of W --> ev and Z --> e+e- decays observed in ppBAR collisions at square-root s = 630 GeV. The ratio is found to be m(W)/m(Z) = 0.8813 +/- 0.0036 +/- 0.0019. This gives a value sin2 theta(w) = 0.2234 +/- 0.0064 +/- 0.0033, and in combination with precise m(Z) measurements from LEP yields m(W) = 80.35 +/- 0.33 +/- 0.17 GeV. This result is in good agreement with other experiments, and with the standard model for a top quark mass lighter than 250 GeV.

Published
1992

50. A study of multi-jet events at the CERN p̄p collider and a search for double parton scattering

Author

V. Simak, M. Primavera, D. Autiero, Valerio Vercesi, F. Gianotti, Michele Livan, J. Alitti, Marzio Nessi, C. Conta, F. Costantini, Luca Cozzi, A. Zylberstejn, V. G. Goggi, J.M. Pentney, K. Hara, G. Parrour, Julius Hrivnac, S. A. Wotton, G. Costa, P. Bonamy, L. Mandelli, R. Ansari, Massimiliano F. Sacchi, P. Bareyre, E. Iacopini, Alan Poppleton, B. Merkel, K. Hultqvist, L. DiLella, H. Zaccone, Vincenzo Cavasinni, C. Magneville, Livio Mapelli, Michel Lefebvre, M. Bourliaud, Paola Scampoli, E. E. Kluge, G. Polesello, P. Cenci, Marco Fraternali, Peter Jenni, Sten Hellman, M. Curatolo, S. Lami, Claus Gössling, M. Punturo, Steinar Stapnes, R. S. DeWolf, Laura Perini, G. Fumagalli, P. Lubrano, L. Linssen, E. Tsesmelis, F. Tondini, T. DelPrete, G. Unal, E. Hugentobler, S. N. Tovey, M. Morganti, J. Schacher, K. Pretzl, J. P. Repellin, J. M. Gaillard, K. Borer, B. Esposito, D. Buskulic, M. Valdata-Nappi, D. J. Munday, P. Petroff, J. Incandela, Karl Jakobs, Roberto Ferrari, P. S. Wells, J. C. Chollet, H. Hufnagel, Cinzia Talamonti, Giovanna Ambrosini, C. Onions, S. L. Singh, Y. Ducros, H. Plothow-Besch, Daniel Froidevaux, R. Moning, Michael Andrew Parker, E. Pennacchio, Darien Wood, A. Dell'Acqua, K. Meier, T. O. White, Francesca Nessi-Tedaldi, M. Moniez, A. Cravero, Andrea Federspiel, Giovanni Carboni, D. Cavalli, Adele Rimoldi, I.A. Bertram, A. R. Weidberg, Paolo Lariccia, F. Pastore, Kevin Einsweiler, N. Kurz, Gary F. Egan, O. Gildemeister, J-P. Meyer, Chariclia Petridou, S. Grünendahl, V. Sondermann, L. Müller, Louis Fayard, T. Pal, Marcello Mazzanti, G. Blaylock, and M. Pepe

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Physics::Instrumentation and Detectors, Scattering, Hadron, Parton, Elementary particle, Jet (particle physics), law.invention, Nuclear physics, law, High Energy Physics::Experiment, Collider, Nuclear Experiment
Abstract

A study of events containing at least four high transverse momentum jets and a search for double parton scattering (DPS) have been performed using data collected with the UA2 detector at the CERN p̄p Collider (√s=630 GeV). The results are in good agreement with leading order QCD calculations. A value of σDPS

Published
1991

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