Measurement of the photon+b-jet production differential cross section in ppˉ collisions at √s=1.96 /TeV

0380506 - FZÚ 2013 RIV NL eng J - Článek v odborném periodiku
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … celkem 395 autorů
Measurement of the photon+b-jet production differential cross section in ppˉ collisions at √s=1.96 /TeV.
Physics Letters. B. Roč. 714, č. 1 (2012), s. 32-39. ISSN 0370-2693. E-ISSN 1873-2445
Grant CEP: GA MŠMT LA08047
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: D0 detecto * b-quark jets * photon * integrated luminosity
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 4.569, rok: 2012
http://www.sciencedirect.com/science/article/pii/S0370269312006958

We present measurements of the differential cross section dsigma/dpT_gamma for the inclusive production of a photon in association with a b-quark jet for photons with rapidities |y_gamma|< 1.0 and 3015 GeV and rapidity |y_jet| < 1.5. The results are based on data corresponding to an integrated luminosity of 8.7 fb^-1, recorded with the D0 detector at the Fermilab Tevatron ppˉ Collider at sqrt(s)=1.96 TeV. The measured cross sections are compared with next-to-leading order perturbative QCD calculations using different sets of parton distribution functions as well as to predictions based on the kT-factorization QCD approach, and those from the Sherpa and Pythia Monte Carlo event generators.
Trvalý link: http://hdl.handle.net/11104/0211197