Studies of Multi-Parton Interactions in Photon+Jets Events at D0
Conference
·
OSTI ID:1027241
We consider sample of inclusive {gamma} + 3 jet events collected by the D0 experiment. The double parton fraction (f{sub DP}) and effective cross section {sigma}{sub eff}, a process-independent scale parameter related to the parton density inside the nucleon, are measured in three intervals of the second (ordered in p{sub T}) jet transverse momentum p{sub T}{sup jet2} within the 15 {le} p{sub T}{sup jet2} {le} 30 GeV range. Also we measured cross sections as a function of the angle in the plane transverse to the beam direction between the transverse momentum (p{sub T}) of the {gamma} + leading jet system and p{sub T} of the other jet for {gamma} + 2 jet, or p{sub T} sum of the two other jets for {gamma} + 3 jet events. The results are compared to different models of multiple parton interactions (MPI) in the PYTHIA and SHERPA Monte Carlo (MC) generators.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
- Sponsoring Organization:
- DOE Office of Science
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1027241
- Report Number(s):
- FERMILAB-CONF-11-476-PPD; arXiv eprint number arXiv:1109.3233
- Country of Publication:
- United States
- Language:
- English
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