Calculation of Wbb¯ production via double parton scattering at the LHC

Edmond L. Berger, C. B. Jackson, Seth Quackenbush, and Gabe Shaughnessy
Phys. Rev. D 84, 074021 – Published 14 October 2011

Abstract

We investigate the potential to observe double parton scattering at the Large Hadron Collider in ppWbb¯Xνbb¯X at 7 TeV. Our analysis tests the efficacy of several kinematic variables in isolating the double parton process of interest from the single parton process and relevant backgrounds for the first 10fb1 of integrated luminosity. These variables are constructed to expose the independent nature of the two subprocesses in double parton scattering, ppνX and ppbb¯X. We use next-to-leading order perturbative predictions for the double parton and single parton scattering components of Wbb¯ and for the pertinent backgrounds. The next-to-leading order contributions are important for a proper description of some of the observables we compute. We find that the double parton process can be identified and measured with significance S/B10, provided the double parton scattering effective cross section σeff12mb.

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  • Received 26 July 2011

DOI:https://doi.org/10.1103/PhysRevD.84.074021

© 2011 American Physical Society

Authors & Affiliations

Edmond L. Berger1,*, C. B. Jackson2,†, Seth Quackenbush1,‡, and Gabe Shaughnessy1,3,§

  • 1High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 2Physics Department, University of Texas at Arlington, Arlington, Texas 76019, USA
  • 3Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA

  • *berger@anl.gov
  • cbjackson@uta.edu
  • squackenbush@hep.anl.gov
  • §g-shaughnessy@northwestern.edu

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Issue

Vol. 84, Iss. 7 — 1 October 2011

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