PROMPT PHOTON PRODUCTION IN p-p COLLISIONS
نویسندگان
چکیده
منابع مشابه
Prompt photon production in nuclear collisions
The production of “hard” probes proves extremely successful to characterize the dense QCD medium – mostly its gluon density – formed in high energy heavy-ion collisions. By hard, we mean those processes with associated scales Q much larger than the typical scales of the medium (let it be the temperature of the saturation scale, Q ≫ T,Qs). Provided these scales are well separated, it is sensible...
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The next-to-leading-order (NLO) cross section for the production of heavy quarks at large transverse momenta (p⊥) in γγ collisions is calculated with perturbative fragmentation functions (PFF’s). This approach allows for a resummation of terms ∝ αs ln(p2⊥/m2) which arise in NLO from collinear emission of gluons by heavy quarks at large p⊥ or from almost collinear branching of photons or gluons ...
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Recent results on prompt photon production in photoproduction, deeply inelastic scattering and hadronic collisions are reviewed and the importance of photons for LHC experiments is briefly discussed.
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We present the explicit expressions for the resummation of large-xT Sudakov effects in the transverse-energy distribution of prompt-photons produced in hadronic collisions, to next-to-leading logarithmic (NLL) accuracy. Fragmentation processes do not contribute to the Sudakov resummation at NLL level. In Mellin space, the resummed radiative factor is the product of independent radiators for eac...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 1995
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x95001418