Forward-backward asymmetry of Drell-Yan lepton pairs in pp collisions at root s=7 TeV

Abstract

A measurement of the forward-backward asymmetry (A(FB)) of Drell-Yan lepton pairs in pp collisions at root s = 7 TeV is presented. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 5 fb(-1). The asymmetry is measured as a function of dilepton mass and rapidity in the dielectron and dimuon channels. Combined results from the two channels are presented, and are compared with the standard model predictions. The A(FB) measurement in the dimuon channel and the combination of the two channels are the first such results obtained at a hadron collider. The measured asymmetries are consistent with the standard model predictions. (c) 2012 CERN. Published by Elsevier B.V. All rights reserved.


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  • Chatrchyan S , Khachatryan V , Sirunyan AM , Tumasyan A , Adam W , Bergauer T , Dragicevic M , Ero J , Fabjan C , Friedl M , Fruhwirth R , Ghete VM , Hammer J , Hormann N , Hrubec J , Jeitler M , Kiesenhofer W , Knunz V , Krammer M , Liko D , Mikulec I , Pernicka M , Rahbaran B , Rohringer C , Rohringer H , Schofbeck R , Strauss J , Taurok A , Wagner P , Waltenberger W , Walzel G , Widl E , Wulz CE , Mossolov V , Shumeiko N , Gonzalez JS , Bansal S , Cornelis T , De Wolf EA , Janssen X , Luyckx S , Maes T , Mucibello L , Ochesanu S , Roland B , Rougny R , Selvaggi M , Staykova Z , Van Haevermaet H , Van Mechelen R , Van Remortel N , Van Spilbeeck A , Blekman F , Blyweert S , D'Hondt J , Suarez RG , Kalogeropoulos A , Maes M , Olbrechts A , Van Doninck W , Van Mulders R , Van Onsem GP , Villella I , Clerbaux B , De Lentdecker G , Dero V , Gay APR , Hreus T , Leonard A , Marage PE , Reis T , Thomas L , Vander Velde C , Vanlaer R , Wang J , Adler V , Beernaert K , Cimmino A , Costantini S , Garcia G , Grunewald M , Klein B , Lellouch J , Marinov A , Mccartin J , Rios AAO , Ryckbosch D , Strobbe N , Thyssen R , Tytgat M , Vanelderen L , Verwilligen R , Walsh S , Yazgan E , Zaganidis N , Basegmez S , Bruno G , Castello R , Caudron A , Ceard L , Delaere C , du Pree T , Favart D , Forthomme L , Giammanco A , Hollar J , Lemaitre V , Liao J , Militaru O , Nuttens C , Pagano D , Perrini L , Pin A , Piotrzkowski K , Schul N , Garcia JMV , Beliy N , Caebergs T , Daubie E , Hammad GH , Alves GA , Martins MC , Damiao DD , Martins T , Pol ME , Souza MHG , Alda WL , Carvalho W , Custodio A , Da Costa EM , Martins CD , De Souza SF , Figueiredo DM , Mundim L , Nogima H , Oguri V , Da Silva WLP , Santoro A , Jorge LS , Sznajder A , Bernardes CA , Dias FA , Tomei TRFP , Gregores EM , Lagana C , Marinho F , Mercadante PG , Novaes SF , Padula SS , Genchev V , Iaydjiev P , Piperov S , Rodozov M , Stoykova S , Sultanov G , Tcholakov V , Trayanov R , Vutova M , Dimitrov A , Hadjiiska R , Kozhuharov V , Litov L , Pavlov B , Petkov P , Bian JG , Chen GM , Chen HS , Jiang CH , Liang D , Liang S , Meng X , Tao J , Wang J , Wang X , Wang Z , Xiao H , Xu M , Zang J , Zhang Z , Asawatangtrakuldee C , Ban Y , Guo S , Guo Y , Li W , Liu S , Mao Y , Qian SJ , Teng H , Wang S , Zhu B , Zou W , Avila C , Gomez JP , Moreno BG , Oliveros AFO , Sanabria JC , Godinovic N , Lelas D , Plestina R , Polic D , Puljak I , Antunovic Z , Kovac M , Brigljevic V , Duric S , Kadija K , Luetic J , Morovic S , Attikis A , Galanti M , Mavromanolakis G , Mousa J , Nicolaou C , Ptochos F , Razis PA , Finger M , Finger M , Assran Y , Elgammal S , Kamel AE , Khalil S , Mahmoud MA , Radi A , Kadastik M , Muntel M , Raidal M , Rebane L , Tiko A , Azzolini V , Eerola P , Fedi G , Voutilainen M , Harkonen J , Heikkinen A , Karimaki V , Kinnunen R , Kortelainen MJ , Lampen T , Lassila-Perini K , Lehti S , Linden T , Luukka P , Maenpaa T , Peltola T , Tuominen E , Tuominiemi J , Tuovinen E , Ungaro D , Wendland L , Banzuzi K , Karjalainen A , Korpela A , Tuuva T , Besancon M , Choudhury S , Dejardin M , Denegri D , Fabbro B , Faure JL , Ferri F , Ganjour S , Givernaud A , Gras P , de Monchenault GH , Jarry P , Locci E , Malcles J , Millischer L , Nayak A , Rander J , Rosowsky A , Shreyber I , Titov M , Baffioni S , Beaudette F , Benhabib L , Bianchini L , Bluj M , Broutin C , Busson P , Chariot C , Daci N , Dahms T , Dobrzynski L , de Cassagnac RG , Haguenauer M , Mine R , Mirdnov C , Nguyen M , Ochando C , Paganini P , Sabes D , Salerno R , Sirois Y , Veelken C , Zabi A , Agram JL , Andrea J , Bloch D , Bodin D , Brom JM , Cardaci M , Chabert EC , Collard C , Conte E , Drouhin F , Ferro C , Fontaine JC , Gele D , Goerlach U , Juillot P , Le Bihan AC , Van Hove P , Fassi , Mercier D , Beauceron S , Beaupere N , Bondu O , Boudoul G , Chasserat J , Chierici R , Contardo D , Depasse P , El Mamouni H , Fay J , Gascon S , Gouzevitch M , Ille B , Kurca T , Lethuillier M , Mirabito L , Perries S , Sordini V , Tosi S , Tschudi Y , Verdier P , Viret S , Tsamalaidze Z , Anagnostou G , Beranek S , Edelhoff M , Feld L , Heracleous N , Hindrichs O , Jussen R , Klein K , Merz J , Ostapchuk A , Perieanu A , Raupach F , Sammet J , Schael S , Sprenger D , Weber H , Wittmer B , Zhukov V , Ata M , Caudron J , Dietz-Laursonn E , Duchardt D , Erdmann M , Fischer R ,

Titolo volume/Rivista

PHYSICS LETTERS. SECTION B


Anno di pubblicazione

2013

ISSN

0370-2693

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