TY - JOUR
T1 - Measurement of the W-pair cross section in e+e- collisions at 172 GeV
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 - Merino, G.
AU - Miquel, R.
AU - Mir, Ll M.
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.
PY - 1997/12/25
Y1 - 1997/12/25
N2 - The e+e- → W+W- cross section is measured in a data sample collected by ALEPH at a mean centre-of-mass energy of 172.09 GeV, corresponding to an integrated luminosity of 10.65 pb-1. Cross sections are given for the three topologies, fully leptonic, semi-leptonic and hadronic of a W-pair decay. Under the assumption that no other decay modes are present, the W-pair cross section is measured to be 11.7 ± 1.2(stat.) ± 0.3(syst.)pb. The existence of the triple gauge boson vertex of the Standard Model is clearly preferred by the data. The decay branching ratio of the W boson into hadrons is measured to be B(W → hadrons) = 67.7 ± 3.1(stat.) ± 0.7(syst.)%, allowing a determination of the CKM matrix element |Vcs = 0.98 ± 0.14(stat.) ± 0.03(syst.).
AB - The e+e- → W+W- cross section is measured in a data sample collected by ALEPH at a mean centre-of-mass energy of 172.09 GeV, corresponding to an integrated luminosity of 10.65 pb-1. Cross sections are given for the three topologies, fully leptonic, semi-leptonic and hadronic of a W-pair decay. Under the assumption that no other decay modes are present, the W-pair cross section is measured to be 11.7 ± 1.2(stat.) ± 0.3(syst.)pb. The existence of the triple gauge boson vertex of the Standard Model is clearly preferred by the data. The decay branching ratio of the W boson into hadrons is measured to be B(W → hadrons) = 67.7 ± 3.1(stat.) ± 0.7(syst.)%, allowing a determination of the CKM matrix element |Vcs = 0.98 ± 0.14(stat.) ± 0.03(syst.).
UR - http://www.scopus.com/inward/record.url?scp=0040740635&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0040740635&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(97)01266-5
DO - 10.1016/S0370-2693(97)01266-5
M3 - Article
AN - SCOPUS:0040740635
SN - 0370-2693
VL - 415
SP - 435
EP - 444
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 - 4
ER -