Measurement of top quark pair differential cross-sections in the dilepton channel in $pp$ collisions at $\sqrt{s}$ = 7 and 8 TeV with ATLAS

M. Aaboud Z. Barnovska-Blenessy 1 N. Berger 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 S. Albrand 2 S. Berlendis 2 C. Camincher 2 J. Collot 2 S. Crépé-Renaudin 2 P.A. Delsart 2 C. Gabaldon 2 M.H. Genest 2 P.O.J. Gradin 2 J.Y. Hostachy 2 F. Ledroit-Guillon 2 A. Lleres 2 A. Lucotte 2 F. Malek 2 E. Petit 2 J. Stark 2 B. Trocmé 2 M. Wu 2 G. Rahal 3 G. Aad 4 M. Alstaty 4 M. Barbero 4 A. Calandri 4 T.P. Calvet 4 Y. Coadou 4 C. Diaconu 4 S. Diglio 4 F. Djama 4 V. Ellajosyula 4 L. Feligioni 4 A. Hadef 4 G.D. Hallewell 4 F. Hubaut 4 S.J. Kahn 4 E. B. F. G. Knoops 4 E. Le Guirriec 4 J. Liu 4 K. Liu 4 D. Madaffari 4 E. Monnier 4 S. Muanza 4 E. Nagy 4 P. Pralavorio 4 Y. Rodina 4 A. Rozanov 4 M. Talby 4 T. Theveneaux-Pelzer 4 R.E. Ticse Torres 4 S. Tisserant 4 J. Toth 4 F. Touchard 4 L. Vacavant 4 Chen Wang 4 M. Delmastro 1 D. Boumediene 5 E. Busato 5 D. Calvet 5 S. Calvet 5 A.R. Chomont 5 J. Donini 5 Ph. Gris 5 R. Madar 5 D. Pallin 5 S.M. Romano Saez 5 C. Santoni 5 D. Simon 5 F. Vazeille 5
1 LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules - Laboratoire d'Annecy de Physique des Particules
2 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
3 CC-IN2P3 - Centre de Calcul de l'IN2P3
4 CPPM - Centre de Physique des Particules de Marseille
5 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
Abstract : Measurements of normalized differential cross-sections of top quark pair ($t\bar t$) production are presented as a function of the mass, the transverse momentum and the rapidity of the $t\bar t$ system in proton-proton collisions at center-of-mass energies of $\sqrt{s}$ = 7 TeV and 8 TeV. The dataset corresponds to an integrated luminosity of 4.6 fb$^{-1}$ at 7 TeV and 20.2 fb$^{-1}$ at 8 TeV, recorded with the ATLAS detector at the Large Hadron Collider. Events with top quark pair signatures are selected in the dilepton final state, requiring exactly two charged leptons and at least two jets with at least one of the jets identified as likely to contain a $b$-hadron. The measured distributions are corrected for detector effects and selection efficiency to cross-sections at the parton level. The differential cross-sections are compared with different Monte Carlo generators and theoretical calculations of $t\bar t$ production. The results are consistent with the majority of predictions in a wide kinematic range.
Type de document :
Article dans une revue
Physical Review D, American Physical Society, 2016, 94, pp.092003. 〈10.1103/PhysRevD.94.092003〉
Liste complète des métadonnées
http://hal.in2p3.fr/in2p3-01348887
Contributeur : Claudine Bombar <>
Soumis le : mardi 26 juillet 2016 - 10:02:25
Dernière modification le : jeudi 18 octobre 2018 - 11:20:03

Lien texte intégral

arxiv

Identifiants

Collections

IN2P3 | UNIV-SAVOIE | LAPP | LPSC | UGA | CPPM | UNIV-AMU | PRES_CLERMONT | LPC-CLERMONT

Citation

M. Aaboud, Z. Barnovska-Blenessy, N. Berger, L. Di Ciaccio, S. Elles, et al.. Measurement of top quark pair differential cross-sections in the dilepton channel in $pp$ collisions at $\sqrt{s}$ = 7 and 8 TeV with ATLAS. Physical Review D, American Physical Society, 2016, 94, pp.092003. 〈10.1103/PhysRevD.94.092003〉. 〈in2p3-01348887〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

146

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD