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Double parton interactions in gamma+3 jet and gamma plus b/c jet+2 jet events in p(p)over-bar collisions at root s=1.96 TeV
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2014 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 89, no 7, 072006- p.Article in journal (Refereed) Published
Abstract [en]

We determine the fraction of events with double parton (DP) Scattering in a single p (p) over bar collisions at root s = 1.96 TeV in gamma + 3 jet and gamma + b/c jet + 2 jet events collected with the D0 detector and corresponding to an integrated luminosity of about 8.7 fb(-1). The DP fractions and effective cross sections (sigma(eff)) are measured for both event samples using the same kinematic selections. The measured DP fractions range from 0.21 to 0.17, with effective cross sections in the gamma + 3 jet and gamma + b/cjet + 2 jet samples of sigma(incl)(eff) = 12.7 +/- 0.2(stat) +/- 1.3(syst) mb and sigma(HF)(eff) = 14.6 +/- 0.6(stat) +/- 3.2(syst) mb, respectively.

Place, publisher, year, edition, pages
2014. Vol. 89, no 7, 072006- p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-224734DOI: 10.1103/PhysRevD.89.072006ISI: 000334316800001OAI: oai:DiVA.org:uu-224734DiVA: diva2:718458
Available from: 2014-05-21 Created: 2014-05-19 Last updated: 2017-12-05Bibliographically approved

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Buszello, Claus P.

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