Double parton interactions in γ+3 jet and γ+b/cjet+2 jet events in pp¯ collisions at s√=1.96 TeV

Abazov, V.M. and Abbott, B. and Acharya, B.S. and Adams, M. and Adams, T. and Agnew, J.P. and Alexeev, G.D. and Alkhazov, G. and Alton, A. and Askew, A. and Atkins, S. and Augsten, K. and Avila, C. and Badaud, F. and Bagby, L. and Baldin, B. and Bandurin, D.V. and Banerjee, S. and Barberis, E. and Baringer, P. and Bartlett, J.F. and Bassler, U. and Bazterra, V. and Bean, A. and Begalli, M. and Bellantoni, L. and Beri, S.B. and Bernardi, G. and Bernhard, R. and Bertram, I. and Besanifmmode çelse çon, M. and Beuselinck, R. and Bhat, P.C. and Bhatia, S. and Bhatnagar, V. and Blazey, G. and Blessing, S. and Bloom, K. and Boehnlein, A. and Boline, D. and Boos, E.E. and Borissov, G. and Borysova, M. and Brandt, A. and Brandt, O. and Fox, H. and Price, D. and Ratoff, P.N. and Ross, A. and Williams, M.R.J. (2014) Double parton interactions in γ+3 jet and γ+b/cjet+2 jet events in pp¯ collisions at s√=1.96 TeV. Physical Review D, 89. ISSN 1550-7998

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We determine the fraction of events with double parton (DP) scattering in a single pp¯ collision at s√=1.96  TeV in samples of γ+3 jet and γ+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 (σeff) 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 γ+3 jet and γ+b/cjet+2 jet samples of σincleff=12.7±0.2(stat)±1.3(syst)  mb and σHFeff=14.6±0.6(stat)±3.2(syst)  mb, respectively.

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Journal Article
Journal or Publication Title:
Physical Review D
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© 2014 American Physical Society
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Deposited On:
03 Jun 2014 10:50
Last Modified:
05 Aug 2020 02:53