Calculation of Wbb production via double parton scattering at the LHC

Journal Article · Sat Oct 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.074021· OSTI ID:21607779

Berger, Edmond L; Quackenbush, Seth ^[1]; Jackson, C B ^[2]; Shaughnessy, Gabe ^[1]

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1. High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Physics Department, University of Texas at Arlington, Arlington, Texas 76019 (United States)

We investigate the potential to observe double parton scattering at the Large Hadron Collider in pp{yields}WbbX{yields}l{nu}bbX 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 10 fb{sup -1} of integrated luminosity. These variables are constructed to expose the independent nature of the two subprocesses in double parton scattering, pp{yields}l{nu}X and pp{yields}bbX. 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/{radical}(B){approx}10, provided the double parton scattering effective cross section {sigma}{sub eff}{approx}12 mb.

• OSTI ID: 21607779
• Journal Information: Physical Review. D, Particles Fields, Vol. 84, Issue 7; Other Information: DOI: 10.1103/PhysRevD.84.074021; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

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