Measurement of the $b\overline{b}$ dijet cross section in $pp$ collisions at $\sqrt{s} = 7$ TeV with the ATLAS detector - Université Clermont Auvergne Accéder directement au contenu
Article Dans Une Revue European Physical Journal C: Particles and Fields Année : 2016

Measurement of the $b\overline{b}$ dijet cross section in $pp$ collisions at $\sqrt{s} = 7$ TeV with the ATLAS detector

M. Aaboud , Z. Barnovska (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) , 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) , Sara Diglio (4) , F. Djama (4) , V. Ellajosyula (4) , L. Feligioni (4) , J. Gao (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) , 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)
M. Aaboud
  • Fonction : Auteur
N. Berger
T. Hryn’ova
G. Aad
Y. Coadou
E. Monnier
Chen Wang
  • Fonction : Auteur
  • PersonId : 829307
S. Calvet

Résumé

The dijet production cross section for jets containing a $b$-hadron ($b$-jets) has been measured in proton-proton collisions with a centre-of-mass energy of $\sqrt{s} = 7$ TeV, using the ATLAS detector at the LHC. The data used correspond to an integrated luminosity of 4.2 fb$^{-1}$. The cross section is measured for events with two identified $b$-jets with a transverse momentum $p_T > 20$ GeV and a minimum separation in the $\eta$-$\phi$ plane of $\Delta R = 0.4$. At least one of the jets in the event is required to have $p_T > 270$ GeV. The cross section is measured differentially as a function of dijet invariant mass, dijet transverse momentum, boost of the dijet system, and the rapidity difference, azimuthal angle and angular distance between the $b$-jets. The results are compared to different predictions of leading order and next-to-leading order perturbative quantum chromodynamics matrix elements supplemented with models for parton-showers and hadronization.

Dates et versions

in2p3-01350698 , version 1 (01-08-2016)

Identifiants

Citer

M. Aaboud, Z. Barnovska, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Measurement of the $b\overline{b}$ dijet cross section in $pp$ collisions at $\sqrt{s} = 7$ TeV with the ATLAS detector. European Physical Journal C: Particles and Fields, 2016, 76, pp.670. ⟨10.1140/epjc/s10052-016-4521-y⟩. ⟨in2p3-01350698⟩
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