Measurement of the b(b)over-bar dijet cross section in pp collisions at root s=7TeV with the ATLAS detector
Number of Authors: 2855
2016 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 76, no 12, 670Article in journal (Refereed) Published
The dijet production cross section for jets containing a b-hadron (b-jets) has been measured in protonproton collisions with a centre-of-mass energy of root s = 7TeV, 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 pT > 20GeV 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) > 270GeV. 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.
Place, publisher, year, edition, pages
2016. Vol. 76, no 12, 670
IdentifiersURN: urn:nbn:se:su:diva-139425DOI: 10.1140/epjc/s10052-016-4521-yISI: 000389893600002OAI: oai:DiVA.org:su-139425DiVA: diva2:1077259