Indirect measurement of $\sin^2\theta_W(M_W)$ using $e^+e^-$ pairs in the $Z$-boson region with $p\bar{p}$ collisions at a center-of-momentum energy of 1.96 TeV

T Aaltonen, R D Field,A R Clark,J R Dittmann,M Bauce, B A Barnett,M A Ciocci,I Shreybertecker,I Oksuzian,J S Lee, K Matera,M Kambeitz, Manuel Iori, A Driutti,K Cho, T Miao,H S Budd,R Erbacher,A Sukhanov, S Y Noh,P Barria,U K Yang,W Ketchum, G Giurgiu, D Amidei,H Gerberich,Yoshiaki Kato,J Kroll, E Lipeles, T R Junk, Azeddine Kasmi,A Mitra,S Wilbur,P Palni,B Jayatilaka,J Yoh,J P Fernandez Ramos, G B Yu, S Y Jun,J Bellinger, M Cavallisforza,J Budagov,L Santi,P Butti,K Kondo, L Ristori,M H Kirby,Jonathan L Rosner,T Harringtontaber,T Rodriguez,S Z Shalhout,K Takemasa,R E Hughes,Y Nagai, M Franklin,R Culbertson,D Jang,M Dorigo,D Cruz,S Behari, N Giokaris, K Pitts, P Maestro, T Schwarz,S Wolbers, G Apollinari,P Lukens,I Gorelov,G Volpi,William B Parker,J Conway,A Buzatu, A Warburton,G P Yeh,J Asaadi,V Thukral, E Gramellini,Yong Jin Kim,C Pagliarone,R St Denis, D J Kong,E Gerchtein, J Cuevas,A Simonenko,C Clarke,H Song,G Pauletta,R Moore,D Lucchesi,J E Kim, B Stelzer,N Moggi,A Hocker,L Oakes,G Manca, O Stelzerchilton,F Happacher,S Farrington, B L Winer,C Hays, S Leo,Xuebing Wu, M Kurata,W Ashmanskas, J Antos, D Carlsmith,Andrew Mehta,H Wolfe,K Gibson,M Donofrio, C Mesropian, C Plager,H Miyake,J Naganoma,Yasuhiro Takeuchi,B Di Ruzza, K Burkett, R Orava, H Frisch, P E Karchin, S Giagu,D J Cox,A Mukherjee,Sergio Grinstein, M Paulini,V Sorin,Dal Hyung Kim, G Busetto,J Pilot,P Wilson,Y Sudo,K Lannon,S Poprocki,P Giromini,M Hussein,M Vogel,B Blumenfeld, H S Kim, B Kilminster, F Azfar, A Anastassov, L Brigliadori, I Nakano,R Forrest,M Trovato, S Errede,J Lys,L Ortolan,Tetsuya Yoshida,P Renton,I Suslov,G Chiarelli,T Liu, M Casarsa,D Chokheli, L Cerrito,Anthony J Castro, A Loginov,Kinta Hatakeyama,Y D Oh,T Kamon,J Lueck,V Rusu,P Murat,A Artikov, M Kruse,D Yamato, P Catastini,T J Phillips,Kenji Yamamoto,J Y Han,Y C Chen,S Moed, A Barbarogaltieri, M Shochet, J Nachtman, S R Hahn,A Calamba, P Wittich, L Scodellaro,M J Morello, F Canelli,J Thom,G Piacentino,G Velev,M Kreps,H H Williams, D Bortoletto,M E Mattson, S Jindariani,Hui Liu,J Konigsberg,V Glagolev,F Vazquez, S Tokar, L Demortier, S Seidel,E J Jeon,Wester W C,G Chlachidze, A Bocci, M Campanelli,D Tonelli,M Mussini, R Roser,T Shears,B Casal, J Vizan, A T Laasanen,M Hare,Zhangyong Hong, A Cerri, F Ukegawa,T Wright,K K Joo, Ryan Christopher Edgar,R Carosi,A Pranko,Qingquan Liu,O Gonzalez Lopez,I Redondo Fernandez, F Prokoshin,M Datta,E Brucken, A Robson, C Neu,A Napier,M Jones, N Dascenzo,B Auerbach,Y Funakoshi, S M Wang,T Nigmanov, F Scuri, K Hara, P K Teng, A Limosani, V E Barnes, S H Oh,A Di Canto,W K Sakumoto,F Ruffini, K Yorita,Cheng Zhou, G Punzi, G Introzzi, K Potamianos, S Rolli,R Vilar,P Schlabach, S Leone,O Norniella,M E Convery, J S Wilson,A Luca,K R Bland, P Sinervo,L Pondrom, M Shimojima,T Arisawa,M Ronzani, A F Garfinkel, Dan S Goldin,P Garosi, G Bellettini, G Flanagan,K Ebina,P Lujan,D Torretta,M Goncharov,S Lockwitz,A Aurisano,M Cordelli, F Bedeschi, C M Ginsburg,S Carrillo,P Mazzanti,S Lammel,J Guimaraes Da Costa,D Mietlicki, V Giakoumopoulou, M Rescigno,A Lister, J Freeman, Alexander Semenov, R F Harr,M J Kim,J Nett,J Tang,E Thomson,A Bhatti, E James,C Grossopilcher, E Palencia,D Glenzinski,F D Snider,P Wagner, W Hopkins,Andrew Ivanov, M Derrico,M Corbo,U Husemann,M Lancaster, A Savoynavarro,J Heinrich, Y Zeng, D Waters,K Sliwa, D Cauz,S Hou,P Totaro, D Benjamin,K J Knoepfel,P Marino, A B Wicklund,A Golossanov, K Yi,F Margaroli,F Ptohos, J Strologas, G Gomez,M Herndon,B Carls,S Amerio,J D Lewis,Th Muller, J Huston,Zhiqiang Wu,A Ruiz,A Bodek,Ishing Yu,E E Schmidt,M Vidal,S Zucchelli,M Stancari, A Annovi, J A Appel, A Beretvas, C Bromberg, C A Cox,P F Shepard, A V Kotwal,F Rimondi, N Kimura,R Wallny,Y Sakurai, S Malik,F Devoto, T Bae,Caterina Vernieri,John R Smith,Michael R Gold, S Donati,R Lysak, R Eusebi,T Okusawa, D Whiteson,W Badgett,V Saveliev,J Keung,F Sforza,Y C Yang,J Russ,W M Yao,V Cavaliere,S B Kim,P De Barbaro, M Cremonesi,D Stentz, A Manousakiskatsikakis,Tianshe Yang,P Bartos, D Toback, K Goulianos, K Tollefson, A Boveia, A T Goshaw, Y Seiya,E Pianori, G Gomezceballos,Kojiro Sato, G Lungu,C Vellidis, B Esham, T Kuhr,C S Moon, J Boudreau,S Torre,P Mehtala,R Mcnulty,M Tecchio, A Zanetti,A Elagin,R Madrak, C Paus, M Deninno,S Camarda,A Mazzacane, P Bussey,V Papadimitriou,N Ranjan, L Nodulman, M Chertok,H S Lee,S Uozumi,T Tomura,G Latino,M Martinez

PHYSICAL REVIEW D（2013）

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摘要

Drell-Yan lepton pairs are produced in the process p (p) over bar -> e(+)e(-) + X through an intermediate gamma*/Z boson. The lepton angular distributions are used to provide information on the electroweak-mixing parameter sin(2)theta(W) via its observable effective-leptonic sisin(2)theta(W), or sin(2)theta(lept)(eff). A new method to infer sin(2)theta(W) or, equivalently, the W-boson mass MW in the on-shell scheme, is developed and tested using a previous CDF Run II measurement of angular distributions from electron pairs in a sample corresponding to 2.1 fb(-1) of integrated luminosity from p (p) over bar collisions at a center-of-momentum energy of 1.96 TeV. The value of ssin(2)theta(lept)(eff) is found to be 0.2328 +/- 0.0011. Within a specified context of the standard model, this results in sin(2)theta(W) = 0.2246 +/- 0.0011, which corresponds to a W-boson mass of 80.297 +/- 0.055 GeV/c2, in agreement with previous determinations in electron-position collisions and at the Tevatron collider.

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electron,cdf

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