Home > Research > Publications & Outputs > Measurement of the differential γ+2 b-jet cross...

Electronic data

  • 1-s2.0-S0370269314006571-main

    Rights statement: Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license

    Final published version, 558 KB, PDF document

    Available under license: CC BY

Links

Text available via DOI:

View graph of relations

Measurement of the differential γ+2 b-jet cross section and the ratio σ(γ+2 b-jets)/σ(γ+b-jet) in pp¯ collisions at s√=1.96 TeV

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
  • D0 Collaboration
Close
<mark>Journal publication date</mark>7/10/2014
<mark>Journal</mark>Physics Letters B
Volume737
Number of pages9
Pages (from-to)357-365
Publication StatusPublished
<mark>Original language</mark>English

Abstract

We present the first measurements of the differential cross section dσ/dpγT for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities |yγ|<1.0 and transverse momenta 30<pγT<200~\GeV. The b-quark jets are required to have pjetT>15 GeV and |yjet|<1.5. The ratio of differential production cross sections for γ+2 b-jets to γ+b-jet as a function of pγT is also presented. The results are based on the proton-antiproton collision data at s√=1.96~\TeV collected with the D0 detector at the Fermilab Tevatron Collider. The measured cross sections and their ratios are compared to the next-to-leading order perturbative QCD calculations as well as predictions based on the kT-factorization approach and those from the SHERPA and PYTHIA Monte Carlo event generators.

Bibliographic note

Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license