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arXiv · 1109.3233

Studies of multi-parton interactions in photon+jets events at D0

Dmitry Bandurin
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Abstract

We consider sample of inclusive photon+3jet events collected by the D0 experiment. The double parton fraction and effective cross section sigma_eff, a process-independent scale parameter related to the parton density inside the nucleon, are measured in three intervals of the second (ordered in pT) jet transverse momentum pT_jet2. Also we measured cross sections as a function of the angle in the plane transverse to the beam direction between the transverse momentum (of the photon+leading jet system and pT of the other jet for photon+2jet, or pT sum of the two other jets for photon+3jet events. The results are compared to different models of multiple parton interactions (MPI) in the PYTHIA and SHERPA Monte Carlo generators.

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Dmitry Bandurin. 2011-09-15. Studies of multi-parton interactions in photon+jets events at D0. https://arxiv.org/abs/1109.3233

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