Measurement of the $t\bar{t}Z$ and $t\bar{t}W$ production cross sections in multilepton final states using 3.2 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector - Université Clermont Auvergne Accéder directement au contenu
Article Dans Une Revue European Physical Journal C: Particles and Fields Année : 2017

Measurement of the $t\bar{t}Z$ and $t\bar{t}W$ production cross sections in multilepton final states using 3.2 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

M. Aaboud , Z. Barnovska-Blenessy (1) , N. Berger (1) , M. Delmastro (1) , L. Di Ciaccio (1) , S. Elles (1) , K. Grevtsov (1) , T. Guillemin (1) , T. Hryn’ova (1) , S. Jézéquel (1) , I. Koletsou (1) , R. Lafaye (1) , Jérémy Lévêque (1) , P. Mastrandea (1) , G. Sauvage (1) , E. Sauvan (1) , O. Simard (1) , B.H. Smart (1) , T. Todorov (1) , I. Wingerter-Seez (1) , E. Yatsenko (1) , M.K. Ayoub (2) , A. Bassalat (2) , S. Binet , C. Becot , C. Bourdarios (2) , J.B. de Vivie De Regie (2) , D. Delgove (2) , L. Duflot (2) , M. Escalier (2) , L. Fayard (2) , D. Fournier (2) , E.L. Gkougkousis (2) , J.-F. Grivaz (2) , F. Hariri (2) , S. Henrot-Versille (2) , J. Hrivnac (2) , L. Iconomidou-Fayard (2) , M. Kado (2) , A. Lounis (2) , N. Makovec (2) , N. Morange (2) , C. Nellist (2) , P. Petroff (2) , L. Poggioli (2) , P. Puzo (2) , A. Renaud (2) , G. Rybkin (2) , D. Rousseau (2) , A.C. Schaffer (2) , L. Serin (2) , E. Scifo (2) , S. Simion (2) , R. Tanaka (2) , D. Zerwas (2) , Zhongkai Zhang (2) , Y. Zhao (2) , G. Rahal (3) , S. Albrand (4) , S. Berlendis (4) , C. Camincher (4) , J. Collot (4) , S. Crépé-Renaudin (4) , P.A. Delsart (4) , C. Gabaldon (4) , M.H. Genest (4) , P.O.J. Gradin (4) , J.Y. Hostachy (4) , F. Ledroit-Guillon (4) , A. Lleres (4) , A. Lucotte (4) , F. Malek (4) , E. Petit (4) , J. Stark (4) , B. Trocmé (4) , M. Wu (4) , G. Aad (5) , M. Alstaty (5) , M. Barbero (5) , A. Calandri (5) , T.P. Calvet (5) , Y. Coadou (5) , C. Diaconu (5) , Sara Diglio (5) , F. Djama (5) , V. Ellajosyula (5) , L. Feligioni (5) , A. Hadef (5) , G.D. Hallewell (5) , F. Hubaut (5) , S.J. Kahn (5) , E. B. F. G. Knoops (5) , E. Le Guirriec (5) , J. Liu (5) , K. Liu (5) , D. Madaffari (5) , E. Monnier (5) , S. Muanza (5) , E. Nagy (5) , P. Pralavorio (5) , Y. Rodina (5) , A. Rozanov (5) , M. Talby (5) , T. Theveneaux-Pelzer (5) , R.E. Ticse Torres (5) , S. Tisserant (5) , J. Toth (5) , F. Touchard (5) , L. Vacavant (5) , C. Wang (5) , D. Boumediene (6) , E. Busato (6) , D. Calvet (6) , S. Calvet (6) , A.R. Chomont (6) , J. Donini (6) , Ph. Gris (6) , R. Madar (6) , D. Pallin (6) , S.M. Romano Saez (6) , C. Santoni (6) , D. Simon (6) , F. Vazeille (6)
M. Aaboud
  • Fonction : Auteur
N. Berger
T. Hryn’ova
S. Binet
  • Fonction : Auteur
C. Becot
  • Fonction : Auteur
D. Rousseau
G. Aad
Y. Coadou
E. Monnier
C. Wang
S. Calvet

Résumé

A measurement of the $t\bar{t}Z$ and $t\bar{t}W$ production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of proton-proton collisions at $\sqrt{s} = 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015, corresponding to a total integrated luminosity of 3.2 fb$^{-1}$. The inclusive cross sections are extracted using likelihood fits to signal and control regions, resulting in $\sigma_{t\bar{t}Z} = 0.9 \pm 0.3$ pb and $\sigma_{t\bar{t}W} = 1.5 \pm 0.8$ pb, in agreement with the Standard Model predictions.

Dates et versions

in2p3-01361813 , version 1 (07-09-2016)

Identifiants

Citer

M. Aaboud, Z. Barnovska-Blenessy, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Measurement of the $t\bar{t}Z$ and $t\bar{t}W$ production cross sections in multilepton final states using 3.2 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector. European Physical Journal C: Particles and Fields, 2017, 77, pp.40. ⟨10.1140/epjc/s10052-016-4574-y⟩. ⟨in2p3-01361813⟩
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