Measurement of the differential -jet cross section and the ratio of differential and cross sections in collisions at

• Published in: Physics letters. B Vol. 719; no. 4a5; pp. 354 - 361
• Main Authors: Abazov, V M, Abbott, B, Acharya, B S, Adams, M, Adams, T, Alexeev, G D, Alkhazov, G, Alton, A, Askew, A, Atkins, S, Augsten, K, Avila, C, Badaud, F, Bagby, L, Baldin, B, Bandurin, D V, Banerjee, S, Barberis, E, Baringer, P, Bartlett, J F, Bartosik, N, Bassler, U, Bazterra, V, Bean, A, Begalli, M, Bellantoni, L, Beri, S B, Bernardi, G, Bernhard, R, Bertram, I, Besancon, M, Beuselinck, R, Bhat, P C, Bhatia, S, Bhatnagar, V, Blazey, G, Blessing, S, Bloom, K, Boehnlein, A, Boline, D, Boos, EE, Borissov, G, Brandt, A, Brandt, O, Brock, R, Bross, A, Brown, D, Brown, J, Bu, X B, Buehler, M, et. al
• Format: Journal Article
• Language: English
• Published: 26.02.2013
• Subjects: Collisions; Cross sections (physics); Distribution functions; Elementary particles; Luminosity; Mathematical analysis; Monte Carlo methods; Photons
• ISSN: 0370-2693

We present measurements of the differential cross section d I / d p T gamma for the associated production of a c-quark jet and an isolated photon with rapidity | y gamma | 15 GeV . The ratio of differential cross sections for gamma + c to gamma + b production as a function of p T gamma is also presented. The results are based on data corresponding to an integrated luminosity of 8.7 fb - 1 recorded with the D0 detector at the Fermilab Tevatron p p A= Collider at s = 1.96 TeV . The obtained results are compared to next-to-leading order perturbative QCD calculations using various parton distribution functions, to predictions based on the k T -factorization approach, and to predictions from the sherpa and pythia Monte Carlo event generators.