Measurement of the b(b)over-bar dijet cross section in pp collisions at root s=7TeV with the ATLAS detector

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Aaboud, M; Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Abeloos, B; Aben, R; AbouZeid, OS; Abraham, NL; Abramowicz, H; ...Date
2016-12-05Source Title
European Physical Journal C: Particles and FieldsPublisher
SPRINGERUniversity of Melbourne Author/s
Urquijo, Phillip; Taylor, Geoffrey; Volpi, Matteo; ZANZI, DANIELE; Nuti, Francesco; Milesi, Marco; Dawe, Edmund; Barberio, Luigia; McDonald, Emily; Ungaro, Francesca Consiglia; ...Affiliation
School of PhysicsMetadata
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Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., AbouZeid, O. S., Abraham, N. L., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adamczyk, L., Adams, D. L., Adelman, J., Adomeit, S., Adye, T. ,... Zwalinski, L. (2016). Measurement of the b(b)over-bar dijet cross section in pp collisions at root s=7TeV with the ATLAS detector. EUROPEAN PHYSICAL JOURNAL C, 76 (12), https://doi.org/10.1140/epjc/s10052-016-4521-y.Access Status
Open AccessAbstract
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 [Formula: see text] TeV, using the ATLAS detector at the LHC. The data used correspond to an integrated luminosity of [Formula: see text]. The cross section is measured for events with two identified b-jets with a transverse momentum [Formula: see text] GeV and a minimum separation in the [Formula: see text]-[Formula: see text] plane of [Formula: see text]. At least one of the jets in the event is required to have [Formula: see text] 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.
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