作者
A Abulencia, D Acosta, J Adelman, T Affolder, T Akimoto, Michael G Albrow, D Ambrose, S Amerio, Dan Amidei, A Anastassov, K Anikeev, A Annovi, J Antos, M Aoki, G Apollinari, JF Arguin, T Arisawa, A Artikov, W Ashmanskas, A Attal, F Azfar, P Azzi-Bacchetta, P Azzurri, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, V Bartsch, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, A Belloni, E Ben-Haim, D Benjamin, Andrew Beretvas, J Beringer, T Berry, A Bhatti, M Binkley, Dario Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, A Bocci, A Bodek, V Boisvert, G Bolla, A Bolshov, D Bortoletto, J Boudreau, S Bourov, A Boveia, B Brau, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, Giovanni Busetto, P Bussey, KL Byrum, S Cabrera, M Campanelli, M Campbell, F Canelli, A Canepa, D Carlsmith, R Carosi, S Carron, M Casarsa, A Castro, P Catastini, Diego Cauz, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, J Chapman, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, JP Chou, PH Chu, SH Chuang, K Chung, WH Chung, YS Chung, M Ciljak, CI Ciobanu, MARIA AGNESE Ciocci, A Clark, D Clark, M Coca, A Connolly, ME Convery, J Conway, B Cooper, K Copic, M Cordelli, G Cortiana, A Cruz, J Cuevas, R Culbertson, D Cyr, S Daronco, S D'Auria, M D'onofrio, D Dagenhart, P De Barbaro, Sandro De Cecco, A Deisher, Gilles De Lentdecker, M Dell'Orso, S Demers, L Demortier, J Deng, M Deninno, D De Pedis, PF Derwent, Carlo Dionisi, J Dittmann, P Dituro, C Dörr, A Dominguez, Simone Donati, Mauro Donegà, P Dong, J Donini, T Dorigo, S Dube, K Ebina, J Efron, J Ehlers, R Erbacher, D Errede, S Errede
发表日期
2007/11/5
期刊
Journal of Physics G: Nuclear and Particle Physics
卷号
34
期号
12
页码范围
2457
出版商
IOP Publishing
简介
We report the first measurements of inclusive W and Z boson cross-sections times the corresponding leptonic branching ratios for collisions at TeV based on the decays of the W and Z bosons into electrons and muons. The data were recorded with the CDF II detector at the Fermilab Tevatron and correspond to an integrated luminosity of 72.0±4.3 pb− 1. We test e-μ lepton universality in W decays by measuring the ratio of the W→ μν to W→ eν cross sections and determine a value of 0.991±0.004 (stat.)±0.011 (syst.) for the ratio of W− ℓ− ν couplings (g μ/g e). Since there is no sign of non-universality, we combine our cross-section measurements in the different lepton decay modes and obtain nb and pb for dilepton pairs in the mass range between 66 GeV/c 2 and 116 GeV/c 2. We compute the ratio R of the W→ ℓν to Z→ ℓℓ cross sections taking all correlations among channels into account and obtain R= 10.84±0.15 …
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