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Measurement of the Effective Weak Mixing Angle in pp[over ¯]→Z/γ^{*}→e^{+}e^{-} Events
Authors :
V M, Abazov B, Abbott B S, Acharya M, Adams T, Adams J P, Agnew G D, Alexeev G, Alkhazov A, Alton A, Askew S, Atkins K, Augsten C, Avila F, Badaud L, Bagby B, Baldin D V, Bandurin S, Banerjee E, Barberis P, Baringer J F, Bartlett U, Bassler V, Bazterra A, Bean M, Begalli L, Bellantoni S B, Beri G, Bernardi R, Bernhard I, Bertram M, Besançon R, Beuselinck P C, Bhat S, Bhatia V, Bhatnagar G, Blazey S, Blessing K, Bloom A, Boehnlein D, Boline E E, Boos G, Borissov M, Borysova A, Brandt O, Brandt R, Brock A, Bross D, Brown X B, Bu M, Buehler V, Buescher V, Bunichev S, Burdin C P, Buszello E, Camacho-Pérez B C K, Casey H, Castilla-Valdez S, Caughron S, Chakrabarti K M, Chan A, Chandra E, Chapon G, Chen S W, Cho S, Choi B, Choudhary S, Cihangir D, Claes J, Clutter M, Cooke W E, Cooper M, Corcoran F, Couderc M-C, Cousinou D, Cutts A, Das G, Davies S J, de Jong E, De La Cruz-Burelo F, Déliot R, Demina D, Denisov S P, Denisov S, Desai C, Deterre K, DeVaughan H T, Diehl M, Diesburg P F, Ding A, Dominguez A, Dubey L V, Dudko A, Duperrin S, Dutt M, Eads D, Edmunds J, Ellison V D, Elvira Y, Enari H, Evans V N, Evdokimov A, Fauré L, Feng T, Ferbel F, Fiedler F, Filthaut W, Fisher H E, Fisk M, Fortner H, Fox S, Fuess P H, Garbincius A, Garcia-Bellido J A, García-González V, Gavrilov W, Geng C E, Gerber Y, Gershtein G, Ginther O, Gogota G, Golovanov P D, Grannis S, Greder H, Greenlee G, Grenier Ph, Gris J-F, Grivaz A, Grohsjean S, Grünendahl M W, Grünewald T, Guillemin G, Gutierrez P, Gutierrez J, Haley L, Han K, Harder A, Harel J M, Hauptman J, Hays T, Head T, Hebbeker D, Hedin H, Hegab A P, Heinson U, Heintz C, Hensel I, Heredia-De La Cruz K, Herner G, Hesketh M D, Hildreth R, Hirosky T, Hoang J D, Hobbs B, Hoeneisen J, Hogan M, Hohlfeld J L, Holzbauer I, Howley Z, Hubacek V, Hynek I, Iashvili Y, Ilchenko R, Illingworth A S, Ito S, Jabeen M, Jaffré A, Jayasinghe M S, Jeong R, Jesik P, Jiang K, Johns E, Johnson M, Johnson A, Jonckheere P, Jonsson J, Joshi A W, Jung A, Juste E, Kajfasz D, Karmanov I, Katsanos M, Kaur R, Kehoe S, Kermiche N, Khalatyan A, Khanov A, Kharchilava Y N, Kharzheev I, Kiselevich J M, Kohli A V, Kozelov J, Kraus A, Kumar A, Kupco T, Kurča V A, Kuzmin S, Lammers P, Lebrun H S, Lee S W, Lee W M, Lee X, Lei J, Lellouch D, Li H, Li L, Li Q Z, Li J K, Lim D, Lincoln J, Linnemann V V, Lipaev R, Lipton H, Liu Y, Liu A, Lobodenko M, Lokajicek R, Lopes de Sa R, Luna-Garcia A L, Lyon A K A, Maciel R, Madar R, Magaña-Villalba S, Malik V L, Malyshev J, Mansour J, Martínez-Ortega R, McCarthy C L, McGivern M M, Meijer A, Melnitchouk D, Menezes P G, Mercadante M, Merkin A, Meyer J, Meyer F, Miconi N K, Mondal M, Mulhearn E, Nagy M, Narain R, Nayyar H A, Neal J P, Negret P, Neustroev H T, Nguyen T, Nunnemann J, Orduna N, Osman J, Osta A, Pal N, Parashar V, Parihar S K, Park R, Partridge N, Parua A, Patwa B, Penning M, Perfilov Y, Peters K, Petridis G, Petrillo P, Pétroff M-A, Pleier V M, Podstavkov A V, Popov M, Prewitt D, Price N, Prokopenko J, Qian A, Quadt B, Quinn P N, Ratoff I, Razumov I, Ripp-Baudot F, Rizatdinova M, Rominsky A, Ross C, Royon P, Rubinov R, Ruchti G, Sajot A, Sánchez-Hernández M P, Sanders A S, Santos G, Savage M, Savitskyi L, Sawyer T, Scanlon R D, Schamberger Y, Scheglov H, Schellman C, Schwanenberger R, Schwienhorst J, Sekaric H, Severini E, Shabalina V, Shary S, Shaw A A, Shchukin V, Simak P, Skubic P, Slattery D, Smirnov G R, Snow J, Snow S, Snyder S, Söldner-Rembold L, Sonnenschein K, Soustruznik J, Stark D A, Stoyanova M, Strauss L, Suter P, Svoisky M, Titov V V, Tokmenin Y-T, Tsai D, Tsybychev B, Tuchming C, Tully L, Uvarov S, Uvarov S, Uzunyan R, Van Kooten W M, van Leeuwen N, Varelas E W, Varnes I A, Vasilyev A Y, Verkheev L S, Vertogradov M, Verzocchi M, Vesterinen D, Vilanova P, Vokac H D, Wahl M H L S, Wang J, Warchol G, Watts M, Wayne J, Weichert L, Welty-Rieger M R J, Williams G W, Wilson M, Wobisch D R, Wood T R, Wyatt Y, Xie R, Yamada S, Yang T, Yasuda Y A, Yatsunenko W, Ye Z, Ye H, Yin K, Yip S W, Youn J M, Yu J, Zennamo T G, Zhao B, Zhou J, Zhu M, Zielinski D, Zieminska L, Zivkovic
Source :
Physical review letters . 115(4)
Publication Year :
2014
Abstract
We present a measurement of the fundamental parameter of the standard model, the weak mixing angle sin^{2}θ_{eff}^{ℓ} which determines the relative strength of weak and electromagnetic interactions, in pp[over ¯]→Z/γ^{*}→e^{+}e^{-} events at a center of mass energy of 1.96 TeV, using data corresponding to 9.7 fb^{-1} of integrated luminosity collected by the D0 detector at the Fermilab Tevatron. The effective weak mixing angle is extracted from the forward-backward charge asymmetry as a function of the invariant mass around the Z boson pole. The measured value of sin^{2}θ_{eff}^{ℓ}=0.23147±0.00047 is the most precise measurement from light quark interactions to date, with a precision close to the best LEP and SLD results.
Details
ISSN :
10797114
Volume :
115
Issue :
4
Database :
OpenAIRE
Journal :
Physical review letters
Accession number :
edsair.pmid..........b864d005b4e29c263dc3971eb4a055c3