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

Murilo Rangel (1)

1 LAL - Laboratoire de l'Accélérateur Linéaire

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.

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

Murilo Rangel. Measurement of Z/$\gamma$+jet+X and $\gamma$+b/c+X Cross Sections with the D0 Detector. European Physical Society Europhysics Conference on High Energy Physics, Jul 2009, Cracovie, Poland. PoS(EPS-HEP 2009)303 (5 p.), LAL 09-193. ⟨hal-00423770⟩