Abstract
Samples of inclusive jet and jet events collected by the D0 experiment with an integrated luminosity of about in collisions at are used to measure cross sections as a function of the angle in the plane transverse to the beam direction between the transverse momentum () of the (jets are ordered in ) and of the other jet for jet, or sum of the two other jets for jet events. The results are compared to different models of multiple parton interactions (MPI) in the pythia and sherpa Monte Carlo (MC) generators. The data indicate a contribution from events with double parton (DP) interactions and are well-described by predictions provided by the pythia MPI models with -ordered showers and by sherpa with the default MPI model. The jet data are also used to determine the fraction of events with DP interactions as a function of the azimuthal angle and as a function of the second jet .
- Received 10 January 2011
DOI:https://doi.org/10.1103/PhysRevD.83.052008
© 2011 American Physical Society