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Measurement of the bb¯ dijet cross section in pp collisions at √s=7 TeV with the ATLAS detector

Aaboud, M. and Aad, G. and Abbott, B. and Abdallah, J. and Abdinov, O. and Krasznahorkay, Attila and Pásztor, Gabriella and Tóth, József (2016) Measurement of the bb¯ dijet cross section in pp collisions at √s=7 TeV with the ATLAS detector. EUROPEAN PHYSICAL JOURNAL C, 76 (12). ISSN 1434-6044

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Abstract

The dijet production cross section for jets containing a b-hadron (b-jets) has been meas- ured in proton–proton collisions with a centre-of-mass energy of √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 trans- verse momentum pT > 20 GeV and a minimum separation in the η–φ plane of ∆R = 0.4. At least one of the jets in the event is required to have pT > 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 dis- tance 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.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 19 Sep 2023 13:27
Last Modified: 19 Sep 2023 13:27
URI: http://real.mtak.hu/id/eprint/174051

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