Department of Physics and Astronomy: Individual Faculty Pages
Kenneth Bloom Publications
Accessibility Remediation
If you are unable to use this item in its current form due to accessibility barriers, you may request remediation through our remediation request form.
Document Type
Article
Date of this Version
2010
Abstract
We have used a sample of γ + 3 jets events collected by the D0 experiment with an integrated luminosity of about 1 fb-1 to determine the fraction of events with double parton scattering (fDP) in a single pp collision at √s = 1.96 TeV. The DP fraction and effective cross section (τeff ), 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 pjet2T within the range 15 ≤ pjet2T ≤ 30 GeV. In this range, fDP varies between 0.23 ≤ fDP ≤ 0.47, while σeff has the average value σave eff = 16.4 ± 0.3(stat) ± 2.3(syst) mb.
Comments
Published in PHYSICAL REVIEW D 81, 052012 (2010). Copyright © 2010 The American Physical Society. Used by permission.