Content area
Abstract
The mass of the W boson is determined from the direct reconstruction of W decays in WW→qq̄qq̄ and WW→ℓνqq̄ events in e+e- collisions at LEP. The data sample corresponds to an integrated luminosity of 683 pb-1 collected with the ALEPH detector at centre-of-mass energies up to 209 GeV. To minimise any effect from colour reconnection a new procedure is adopted in which low energy particles are not considered in the mass determination from the qq̄qq̄ channel. The combined result from all channels is \(m_{\text{W}}=80.440 \pm0.043{\text{(stat.)}} \pm0.024{\text{(syst.)}} \pm0.009{\text{(FSI)}} \pm0.009{\text{(LEP)}} \text{GeV/}c^2, \)where FSI represents the possible effects of final state interactions in the qq̄qq̄ channel and LEP indicates the uncertainty in the beam energy. From two-parameter fits to the W mass and width, the W width is found to be \(\Gamma_{\text{W}} = 2.14 \pm0.09{\text{(stat.)}} \pm0.04{\text{(syst.)}} \pm0.05{\text{(FSI)}} \pm0.01{\text{(LEP)}} \text{GeV}. \)
Details
Title
Measurement of the W boson mass and width in e+e- collisions at LEP
Author
Schael, S 1 ; Barate, R 2 ; Brunelière, R 2 ; De Bonis, I 2 ; Decamp, D 2 ; Goy, C 2 ; Jézéquel, S 2 ; J-P Lees 2 ; Martin, F 2 ; Merle, E 2 ; M-N Minard 2 ; Pietrzyk, B 2 ; Trocmé, B 2 ; Bravo, S 3 ; Casado, M P 3 ; Chmeissani, M 3 ; Crespo, J M 3 ; Fernandez, E 3 ; Fernandez-Bosman, M 3 ; Garrido, L 3 ; Martinez, M 3 ; Pacheco, A 3 ; Ruiz, H 3 ; Colaleo, A 4 ; Creanza, D 4 ; De Filippis, N 4 ; de Palma, M 4 ; Iaselli, G 4 ; Maggi, G 4 ; Maggi, M 4 ; Nuzzo, S 4 ; Ranieri, A 4 ; Raso, G 4 ; Ruggieri, F 4 ; Selvaggi, G 4 ; Silvestris, L 4 ; Tempesta, P 4 ; Tricomi, A 4 ; Zito, G 4 ; Huang, X 5 ; Lin, J 5 ; Ouyang, Q 5 ; Wang, T 5 ; Xie, Y 5 ; R Xu 5 ; Xue, S 5 ; Zhang, J 5 ; Zhang, L 5 ; Zhao, W 5 ; Abbaneo, D 6 ; Barklow, T 6 ; Buchmüller, O 6 ; Cattaneo, M 6 ; Clerbaux, B 6 ; Drevermann, H 6 ; Forty, R W 6 ; Frank, M 6 ; Gianotti, F 6 ; Hansen, J B 6 ; Harvey, J 6 ; Hutchcroft, DE 6 ; Janot, P 6 ; Jost, B 6 ; Kado, M 6 ; Mato, P 6 ; Moutoussi, A 6 ; Ranjard, F 6 ; Rolandi, L 6 ; Schlatter, D 6 ; Teubert, F 6 ; Valassi, A 6 ; Videau, I 6 ; Badaud, F 7 ; Dessagne, S 7 ; Falvard, A 7 ; Fayolle, D 7 ; Gay, P 7 ; Jousset, J 7 ; Michel, B 7 ; Monteil, S 7 ; Pallin, D 7 ; Pascolo, J M 7 ; Perret, P 7 ; Hansen, J D 8 ; Hansen, J R 8 ; Hansen, PH 8 ; Kraan, A C 8 ; Nilsson, B S 8 ; Kyriakis, A 9 ; Markou, C 9 ; Simopoulou, E 9 ; Vayaki, A 9 ; Zachariadou, K 9 ; Blondel, A 10 ; J-C Brient 10 ; Machefert, F 10 ; Rougé, A 10 ; Videau, H 10 ; Ciulli, V 11 ; Focardi, E 11 ; Parrini, G 11 ; Antonelli, A 12 ; Antonelli, M 12 ; Bencivenni, G 12 ; Bossi, F 12 ; Capon, G 12 ; Cerutti, F 12 ; Chiarella, V 12 ; Laurelli, P 12 ; Mannocchi, G 12 ; Murtas, G P 12 ; Passalacqua, L 12 ; Kennedy, J 13 ; Lynch, J G 13 ; Negus, P 13 ; V O’Shea 13 ; Thompson, A S 13 ; Wasserbaech, S 14 ; Cavanaugh, R 15 ; Dhamotharan, S 15 ; Geweniger, C 15 ; Hanke, P 15 ; Hepp, V 15 ; Kluge, EE 15 ; Putzer, A 15 ; Stenzel, H 15 ; Tittel, K 15 ; Wunsch, M 15 ; Beuselinck, R 16 ; Cameron, W 16 ; Davies, G 16 ; Dornan, P J 16 ; Girone, M 16 ; Marinelli, N 16 ; Nowell, J 16 ; Rutherford, SA 16 ; Sedgbeer, J K 16 ; Thompson, J C 16 ; White, R 16 ; Ghete, V M 17 ; Girtler, P 17 ; Kneringer, E 17 ; Kuhn, D 17 ; Rudolph, G 17 ; Bouhova-Thacker, E 18 ; Bowdery, C K 18 ; Clarke, D P 18 ; Ellis, G 18 ; Finch, A J 18 ; Foster, F 18 ; Hughes, G 18 ; Jones, RWL 18 ; Pearson, M R 18 ; Robertson, NA 18 ; Sloan, T 18 ; Smizanska, M 18 ; van der Aa, O 19 ; Delaere, C 19 ; Leibenguth, G 19 ; Lemaitre, V 19 ; Blumenschein, U 20 ; Hölldorfer, F 20 ; Jakobs, K 20 ; Kayser, F 20 ; A-S, Müller 20 ; Renk, B 20 ; H-G, Sander 20 ; Schmeling, S 20 ; Wachsmuth, H 20 ; Zeitnitz, C 20 ; Ziegler, T 20 ; Bonissent, A 21 ; Coyle, P 21 ; Curtil, C 21 ; Ealet, A 21 ; Fouchez, D 21 ; Payre, P 21 ; Tilquin, A 21 ; Ragusa, F 22 ; David, A 23 ; Dietl, H 23 ; Ganis, G 23 ; Hüttmann, K 23 ; Lütjens, G 23 ; Männer, W 23 ; H-G Moser 23 ; Settles, R 23 ; Villegas, M 23 ; Wolf, G 23 ; Boucrot, J 24 ; Callot, O 24 ; Davier, M 24 ; Duflot, L 24 ; J-F Grivaz 24 ; Heusse, P 24 ; Jacholkowska, A 24 ; Serin, L 24 ; J-J Veillet 24 ; Azzurri, P 25 ; Bagliesi, G 25 ; Boccali, T 25 ; Foà, L 25 ; Giammanco, A 25 ; Giassi, A 25 ; Ligabue, F 25 ; Messineo, A 25 ; Palla, F 25 ; Sanguinetti, G 25 ; Sciabà, A 25 ; Sguazzoni, G 25 ; Spagnolo, P 25 ; Tenchini, R 25 ; Venturi, A 25 ; Verdini, P G 25 ; Awunor, O 26 ; Blair, G A 26 ; Cowan, G 26 ; Garcia-Bellido, A 26 ; Green, M G 26 ; Medcalf, T 26 ; Misiejuk, A 26 ; Strong, JA 26 ; Teixeira-Dias, P 26 ; Clifft, R W 27 ; Edgecock, T R 27 ; Norton, PR 27 ; Tomalin, IR 27 ; Ward, J J 27 ; Bloch-Devaux, B 28 ; Boumediene, D 28 ; Colas, P 28 ; Fabbro, B 28 ; Lançon, E 28 ; M-C Lemaire 28 ; Locci, E 28 ; Perez, P 28 ; Rander, J 28 ; Trabelsi, A 28 ; Tuchming, B 28 ; Vallage, B 28 ; Litke, A M 29 ; Taylor, G 29 ; Booth, C N 30 ; Cartwright, S 30 ; Combley, F 30 ; Hodgson, P N 30 ; Lehto, M 30 ; Thompson, L F 30 ; Böhrer, A 31 ; Brandt, S 31 ; Grupen, C 31 ; Hess, J 31 ; Ngac, A 31 ; Prange, G 31 ; Borean, C 32 ; Giannini, G 32 ; H He 33 ; Putz, J 33 ; Rothberg, J 33 ; Armstrong, SR 34 ; Berkelman, K 34 ; Cranmer, K 34 ; Ferguson, DPS 34 ; Gao, Y 34 ; González, S 34 ; Hayes, O J 34 ; H Hu 34 ; Jin, S 34 ; Kile, J 34 ; McNamara, PA, III 34 ; Nielsen, J 34 ; Pan, Y B 34 ; JH von Wimmersperg-Toeller 34 ; Wiedenmann, W 34 ; J Wu 34 ; Sau Lan Wu 34 ; X Wu 34 ; Zobernig, G 34 ; Dissertori, G 35
1 Physikalisches Institut, RWTH-Aachen, Aachen, Germany
2 Laboratoire de Physique des Particules (LAPP), IN2P3-CNRS, Annecy-le-Vieux Cedex, France
3 Institut de Física d’Altes Energies, Universitat Autònoma de Barcelona, Bellaterra (Barcelona), Spain
4 Dipartimento di Fisica, INFN Sezione di Bari, Bari, Italy
5 Institute of High Energy Physics, Academia Sinica, Beijing, P.R. China
6 European Laboratory for Particle Physics (CERN), Geneva 23, Switzerland
7 Laboratoire de Physique Corpusculaire, Université Blaise Pascal, IN2P3-CNRS, Aubière, France
8 Niels Bohr Institute, Copenhagen, Denmark
9 Nuclear Research Center Demokritos (NRCD), Attiki, Greece
10 Laoratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau Cedex, France
11 Dipartimento di Fisica, Università di Firenze, INFN Sezione di Firenze, Firenze, Italy
12 Department of Physics and Astronomy, University of Glasgow, Glasgow, UK
13 Utah Valley State College, Orem, UT, USA
14 Laboratori Nazionali dell’INFN (LNF-INFN), Frascati, Italy
15 Kirchhoff-Institut für Physik, Universität Heidelberg, Heidelberg, Germany
16 Department of Physics, Imperial College, London, UK
17 Institut für Experimentalphysik, Universität Innsbruck, Innsbruck, Austria
18 Department of Physics, University of Lancaster, Lancaster, UK
19 Institut de Physique Nucléaire, Département de Physique, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
20 Institut für Physik, Universität Mainz, Mainz, Germany
21 Centre de Physique des Particules de Marseille, Univ. Méditerranée, IN2P3-CNRS, Marseille, France
22 Dipartimento di Fisica, Università di Milano e INFN Sezione di Milano, Milano, Italy
23 Werner-Heisenberg-Institut, Max-Planck-Institut für Physik, München, Germany
24 Laboratoire de l’Accélérateur Linéaire, Université de Paris-Sud, IN2P3-CNRS, Orsay Cedex, France
25 Dipartimento di Fisica dell’Università, INFN Sezione di Pisa, e Scuola Normale Superiore, Pisa, Italy
26 Department of Physics, Royal Holloway & Bedford New College, University of London, Surrey, UK
27 Particle Physics Dept., Rutherford Appleton Laboratory, Oxon, UK
28 CEA, DAPNIA/Service de Physique des Particules, Gif-sur-Yvette Cedex, France
29 Institute for Particle Physics, University of California at Santa Cruz, Santa Cruz, CA, USA
30 Department of Physics, University of Sheffield, Sheffield, UK
31 Fachbereich Physik, Universität Siegen, Siegen, Germany
32 Dipartimento di Fisica, Università di Trieste e INFN Sezione di Trieste, Trieste, Italy
33 Experimental Elementary Particle Physics, University of Washington, Seattle, WA, USA
34 Department of Physics, University of Wisconsin, Madison, WI, USA
35 Institute for Particle Physics, ETH Hönggerberg, Zürich, Switzerland
1 Physikalisches Institut, RWTH-Aachen, Aachen, Germany
2 Laboratoire de Physique des Particules (LAPP), IN2P3-CNRS, Annecy-le-Vieux Cedex, France
3 Institut de Física d’Altes Energies, Universitat Autònoma de Barcelona, Bellaterra (Barcelona), Spain
4 Dipartimento di Fisica, INFN Sezione di Bari, Bari, Italy
5 Institute of High Energy Physics, Academia Sinica, Beijing, P.R. China
6 European Laboratory for Particle Physics (CERN), Geneva 23, Switzerland
7 Laboratoire de Physique Corpusculaire, Université Blaise Pascal, IN2P3-CNRS, Aubière, France
8 Niels Bohr Institute, Copenhagen, Denmark
9 Nuclear Research Center Demokritos (NRCD), Attiki, Greece
10 Laoratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau Cedex, France
11 Dipartimento di Fisica, Università di Firenze, INFN Sezione di Firenze, Firenze, Italy
12 Department of Physics and Astronomy, University of Glasgow, Glasgow, UK
13 Utah Valley State College, Orem, UT, USA
14 Laboratori Nazionali dell’INFN (LNF-INFN), Frascati, Italy
15 Kirchhoff-Institut für Physik, Universität Heidelberg, Heidelberg, Germany
16 Department of Physics, Imperial College, London, UK
17 Institut für Experimentalphysik, Universität Innsbruck, Innsbruck, Austria
18 Department of Physics, University of Lancaster, Lancaster, UK
19 Institut de Physique Nucléaire, Département de Physique, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
20 Institut für Physik, Universität Mainz, Mainz, Germany
21 Centre de Physique des Particules de Marseille, Univ. Méditerranée, IN2P3-CNRS, Marseille, France
22 Dipartimento di Fisica, Università di Milano e INFN Sezione di Milano, Milano, Italy
23 Werner-Heisenberg-Institut, Max-Planck-Institut für Physik, München, Germany
24 Laboratoire de l’Accélérateur Linéaire, Université de Paris-Sud, IN2P3-CNRS, Orsay Cedex, France
25 Dipartimento di Fisica dell’Università, INFN Sezione di Pisa, e Scuola Normale Superiore, Pisa, Italy
26 Department of Physics, Royal Holloway & Bedford New College, University of London, Surrey, UK
27 Particle Physics Dept., Rutherford Appleton Laboratory, Oxon, UK
28 CEA, DAPNIA/Service de Physique des Particules, Gif-sur-Yvette Cedex, France
29 Institute for Particle Physics, University of California at Santa Cruz, Santa Cruz, CA, USA
30 Department of Physics, University of Sheffield, Sheffield, UK
31 Fachbereich Physik, Universität Siegen, Siegen, Germany
32 Dipartimento di Fisica, Università di Trieste e INFN Sezione di Trieste, Trieste, Italy
33 Experimental Elementary Particle Physics, University of Washington, Seattle, WA, USA
34 Department of Physics, University of Wisconsin, Madison, WI, USA
35 Institute for Particle Physics, ETH Hönggerberg, Zürich, Switzerland
Pages
309-335
Publication year
2006
Publication date
Aug 2006
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2334215409
Copyright
The European Physical Journal C - Particles and Fields is a copyright of Springer, (2006). All Rights Reserved.