Rights statement: Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - 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
AU - Bertram, Iain
AU - Borissov, Guennadi
AU - Fox, Harald
AU - Williams, Mark
AU - Ratoff, Peter
AU - Ross, Anthony
AU - Price, Darren
AU - D0 Collaboration
N1 - Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license
PY - 2014/10/7
Y1 - 2014/10/7
N2 - 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 3015 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.
AB - 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 3015 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.
U2 - 10.1016/j.physletb.2014.09.007
DO - 10.1016/j.physletb.2014.09.007
M3 - Journal article
VL - 737
SP - 357
EP - 365
JO - Physics Letters B
JF - Physics Letters B
SN - 0370-2693
ER -