Measurement of the low-mass Drell-Yan differential cross section at sqrt(s)=7 TeV using the ATLAS detector - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of High Energy Physics Year : 2014

Measurement of the low-mass Drell-Yan differential cross section at sqrt(s)=7 TeV using the ATLAS detector

G. Aad (1) , Z. Barnovska (2) , N. Berger (2) , M. Delmastro (2) , L. Di Ciaccio (2) , T.K.O. Doan (2) , S. Elles (2) , C. Goy (2) , T. Hryn'Ova (2) , S. Jézéquel (2) , H. Keoshkerian (2) , R. Lafaye (2) , J. Leveque (2) , V.P. Lombardo (2) , N. Massol (2) , H. Przysiezniak (2) , G. Sauvage (2) , E. Sauvan (2) , M. Schwoerer (2) , T. Todorov (2) , I. Wingerter-Seez (2) , R. Zitoun (2) , S. Abdel Khalek (3) , E. Augé (3) , A. Bassalat (3) , C. Becot (3) , S. Binet (3) , C. Bourdarios (3) , D. Charfeddine (3) , C. de La Taille (3) , J.B. de Vivie de Regie (3) , L. Duflot (3) , M. Escalier (3) , L. Fayard (3) , D. Fournier (3) , J.-F. Grivaz (3) , T. Guillemin (3) , S. Henrot-Versillé (3) , J. Hrivnac (3) , L. Iconomidou-Fayard (3) , J. Idarraga (3) , M. Kado (3) , A. Lounis (3) , N. Makovec (3) , P. Matricon (3) , L. Poggioli (3) , P. Puzo (3) , A. Renaud (3) , D. Rousseau (3) , G. Rybkin (3) , A.C. Schaffer (3) , E. Scifo (3) , L. Serin (3) , S. Simion (3) , R. Tanaka (3) , H.L. Tran (3) , D. Zerwas (3) , Zhiqing Zhang (3) , S. Albrand (4) , J. Brown (4) , B. Clement (4) , J. Collot (4) , S. Crépé-Renaudin (4) , B. Dechenaux (4) , P.A. Delsart (4) , C. Gabaldon (4) , M.H. Genest (4) , J.Y. Hostachy (4) , B.T. Le (4) , F. Ledroit-Guillon (4) , A. Lleres (4) , A. Lucotte (4) , F. Malek (4) , C. Monini (4) , J. Stark (4) , B. Trocmé (4) , M. Wu (4) , L. Alio (1) , M. Barbero (1) , C. Bertella (1) , J. C. Clémens (1) , Y. Coadou (1) , F. Djama (1) , L. Feligioni (1) , D. Hoffmann (1) , F. Hubaut (1) , E. B. F. G. Knoops (1) , E. Le Guirriec (1) , B. Li (1) , D. Madaffari (1) , K. Mochizuki (1) , E. Monnier (1) , S. Muanza (1) , Y. Nagai (1) , P. Pralavorio (1) , A. Rozanov (1) , T. Serre (1) , M. Talby (1) , N. Tannoury (1) , E. Tiouchichine (1) , S. Tisserant (1) , J. Toth (1) , F. Touchard (1) , M. Ughetto (1) , L. Vacavant (1) , D. Boumediene (5) , Emmanuel Busato (5) , D. Calvet (5) , S. Calvet (5) , J. Donini (5) , E. Dubreuil (5) , N. Ghodbane (5) , G. Gilles (5) , Ph. Gris (5) , C. Guicheney (5) , H. Liao (5) , D. Pallin (5) , Daniela Paredes Hernández (5) , F. Podlyski (5) , C. Santoni (5) , Timothée Theveneaux-Pelzer (5) , Loïc Valery (5) , F. Vazeille (5) , I. Koletsou (2) , O. Simard (2)
G. Aad
N. Berger
C. Goy
T. Hryn'Ova
E. Augé
D. Rousseau
Zhiqing Zhang
  • Function : Author
  • PersonId : 829631
Y. Coadou
S. Calvet

Abstract

The differential cross section for the process $Z/\gamma^*\rightarrow ll$ ($l=e,\mu$) as a function of dilepton invariant mass is measured in pp collisions at $\sqrt{s}=$7 TeV at the LHC using the ATLAS detector. The measurement is performed in the $e$ and $\mu$ channels for invariant masses between 26 GeV and 66 GeV using an integrated luminosity of 1.6 fb$^{-1}$ collected in 2011 and these measurements are combined. The analysis is extended to invariant masses as low as 12 GeV in the muon channel using 35 pb$^{-1}$ of data collected in 2010. The cross sections are determined within fiducial acceptance regions and corrections to extrapolate the measurements to the full kinematic range are provided. Next-to-next-to-leading-order QCD predictions provide a significantly better description of the results than next-to-leading-order QCD calculations, unless the latter are matched to a parton shower calculation.

Dates and versions

in2p3-00975394 , version 1 (08-04-2014)

Identifiers

Cite

G. Aad, Z. Barnovska, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Measurement of the low-mass Drell-Yan differential cross section at sqrt(s)=7 TeV using the ATLAS detector. Journal of High Energy Physics, 2014, 06, pp.112. ⟨10.1007/JHEP06(2014)112⟩. ⟨in2p3-00975394⟩
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