TY - JOUR
T1 - Measurement of the W mass in e+e- collisions at production threshold
AU - ALEPH Collaboration
AU - Barate, R.
AU - Buskulic, D.
AU - Decamp, D.
AU - Ghez, P.
AU - Goy, C.
AU - Lees, J. P.
AU - Lucotte, A.
AU - Minard, M. N.
AU - Nief, J. Y.
AU - Pietrzyk, B.
AU - Casado, M. P.
AU - Chmeissani, M.
AU - Comas, P.
AU - Crespo, J. M.
AU - Delfino, M.
AU - Fernandez, E.
AU - Fernandez-Bosman, M.
AU - Garrido, Ll
AU - Juste, A.
AU - Martinez, M.
AU - Miquel, R.
AU - Mir, Ll M.
AU - Orteu, S.
AU - Padilla, C.
AU - Park, I. C.
AU - Pascual, A.
AU - Perlas, J. A.
AU - Riu, I.
AU - Sanchez, F.
AU - Teubert, F.
AU - Colaleo, A.
AU - Creanza, D.
AU - de Palma, M.
AU - Gelao, G.
AU - Iaselli, G.
AU - Maggi, G.
AU - Maggi, M.
AU - Marinelli, N.
AU - Nuzzo, S.
AU - Ranieri, A.
AU - Raso, G.
AU - Ruggieri, F.
AU - Selvaggi, G.
AU - Silvestris, L.
AU - Tempesta, P.
AU - Tricomi, A.
AU - Zito, G.
AU - Huang, X.
AU - Lin, J.
AU - Elmer, P.
N1 - Funding Information:
Spain I6 Supportedb y the Bundesministeriumf ur Bildung, Wissenschaft. Forschung und Technologie, Germany. I7 Supported by the Direction des Sciences de la Matitre, C.E.A. Is Supported by Fonds zur Fijrderung der wissenschaftlichen Forschung, Austria. I’) Supported by the US Departmentof Energy, grant DE-FG03-92ER40689. x1A lso at Istituto di Matematica e Fisica, Universita di Sassari, Sassari, Italy. 21A lso at CERN, 1211 Geneva 23, Switzerland. 22P ermanenta ddress: Kangnung National University, Kangnung, Korea.
PY - 1997/5/29
Y1 - 1997/5/29
N2 - In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e+e- collisions was observed for the first time by the LEP experiments. An integrated luminosity of 11 pb-1 was recorded in the ALEPH detector, in which WW candidate events were observed. In 6 events both Ws decay leptonically. In 16 events, one W decays leptonically, the other into hadrons. In the channel where both Ws decay into hadrons, a signal was separated from the large background by means of several multi-variate analyses. The W pair cross-section is measured to be σww = 4.23 ± 0.73(stat.) ± 0.19(syst.) pb. From this cross-section, the W mass is derived within the framework of the Standard Model: mw = 80.14 ± 0.34(stat.) ± 0.09(syst.) ± 0.03(LEP energy) GeV/c2
AB - In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e+e- collisions was observed for the first time by the LEP experiments. An integrated luminosity of 11 pb-1 was recorded in the ALEPH detector, in which WW candidate events were observed. In 6 events both Ws decay leptonically. In 16 events, one W decays leptonically, the other into hadrons. In the channel where both Ws decay into hadrons, a signal was separated from the large background by means of several multi-variate analyses. The W pair cross-section is measured to be σww = 4.23 ± 0.73(stat.) ± 0.19(syst.) pb. From this cross-section, the W mass is derived within the framework of the Standard Model: mw = 80.14 ± 0.34(stat.) ± 0.09(syst.) ± 0.03(LEP energy) GeV/c2
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U2 - 10.1016/S0370-2693(97)00460-7
DO - 10.1016/S0370-2693(97)00460-7
M3 - Article
AN - SCOPUS:0002392557
SN - 0370-2693
VL - 401
SP - 347
EP - 362
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3-4
ER -