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Measurement of the b(b)over-bar dijet cross section in pp collisions at root s=7TeV with the ATLAS detector
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0002-8913-0981
Vise andre og tillknytning
Rekke forfattare: 28552016 (engelsk)Inngår i: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 76, nr 12, artikkel-id 670Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

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.

sted, utgiver, år, opplag, sider
2016. Vol. 76, nr 12, artikkel-id 670
Emneord [en]
HEAVY-QUARK PRODUCTION; P(P)OVER-BAR COLLISIONS; 1.8 TEV; HADRONIC COLLISIONS; ROOT-S
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Identifikatorer
URN: urn:nbn:se:kth:diva-200288DOI: 10.1140/epjc/s10052-016-4521-yISI: 000389893600002Scopus ID: 2-s2.0-85003696262OAI: oai:DiVA.org:kth-200288DiVA, id: diva2:1067845
Merknad

QC 20170123

Tilgjengelig fra: 2017-01-23 Laget: 2017-01-23 Sist oppdatert: 2017-11-29bibliografisk kontrollert

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