Measurement of Z/$γ$+jet+X and $γ$+b/c+X Cross Sections with the D0 Detector

Details Measurement of Z/$γ$+jet+X and $γ$+b/c+X Cross Sections with the D0 Detector Measurement of Z/$γ$+jet+X and $γ$+b/c+X Cross Sections with the D0 Detector

2009-10-19

arxiv.org/abs/0910.3560v1

PoS EPS-HEP2009 2009:303,2009

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

We present measurements of differential cross sections for the inclusive $Z/\gamma^*$ + jet production and the inclusive photon plus heavy flavor production in a data sample of 1fb$^{-1}$ collected with the D{\O}detector in proton-antiproton collisions at $\sqrt{s}$=1.96 TeV. In the first measurement, we compare kinematic distributions of the $Z/\gamma^*$ and the jets as well as various angles of the $Z$+jet system with different Monte Carlo event generators and next-to-leading order perturbative QCD (NLO pQCD) predictions with non-perturbative corrections applied. In the second measurement, we compare the results with NLO pQCD predictions, covering photon transverse momenta 30-150 GeV, photon rapidities $|y^{\gamma}| < 1.0$, jet rapidities $|y^{jet}| < 0.8$, and jet transverse momenta $p_{T}^{jet} > 15$ GeV.

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