Charm and prompt photon production with EPOS
نویسندگان
چکیده
منابع مشابه
Production of a Prompt Photon in Association with Charm at Next-to-Leading Order in QCD
A second order, O(α2s), calculation in perturbative quantum chromodynamics of the two particle inclusive cross section is presented for the reaction p + p̄ → γ + c + X for large values of the transverse momentum of the prompt photon and charm quark. The combination of analytic and Monte Carlo integration methods used here to perform phase-space integrations facilitates imposition of photon isola...
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In the study of high energy collisions involving hadrons, events in which isolated high-energy photons (often referred to as prompt photons if originating from quarks) are observed provide a direct probe of the underlying parton process, since the emission of these photons is unaffected by parton hadronisation. Isolated high-energy photon production has been studied in hadronic collisions[2] an...
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Theoretical study of the reaction p+ p̄ → γ+c+X is interesting for several reasons. The two particle inclusive cross section probes QCD dynamics in more detail than a single particle inclusive cross section. Specification of the cross section in nextto-leading order in QCD is correspondingly more challenging, and data will permit a study of various correlations including those in the rapidities ...
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A preliminary update of the previous OPAL measurement of the inclusive production of D mesons in anti-tagged photon-photon collisions is presented together with the first preliminary OPAL measurement of bottom production in photon-photon collisions.
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In Leading Order (LO) prompt photons originating in the hard interaction between two partons are produced mainly via quark-gluon Compton scattering (qg → qγ) or quark–anti-quark annihilation (qq̄ → gγ). Studies of direct photons with large transverse momenta, pγT , provide precision tests of perturbative QCD (pQCD) as well as information on the distribution of partons within protons, particularl...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2017
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/805/1/012002