Direct photon production at LHCb
نویسندگان
چکیده
منابع مشابه
Direct photon production at HERA, the Tevatron and the LHC
We review several most recent prompt-photon measurements at HERA and the Tevatron and discuss their implication for future measurements at the LHC. A comparison to Monte Carlo models, as well as to NLO QCD predictions based on the standard DGLAP and the kT -factorization approaches is discussed. Effects from renormalization and factorization scale uncertainties, as well as uncertainties on the ...
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We study the nuclear dependences of high-p T jet cross sections in one photon and one jet production in proton-nucleus collisions. We find that there exist asymmetries between the outgoing jets and photons. A convincing reason responsible for those asymmetries are demonstrated in perturbative QCD. Significant nuclear enhancements are also found in the inclusive jet cross sections. Anomalous nuc...
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We present the computation of the direct photon production cross-section in perturbative QCD to all orders in the limit of high partonic center-of-mass energy. We show how the high-energy resummation can be performed consistently in the presence of a collinear singularity in the final state, we compare our results to the fixed order NLO cross-section in MS scheme, and we provide predictions at ...
متن کاملNuclear dependence in direct photon production.
We calculate the nuclear dependence of direct photon production in hadronnucleus collisions. In terms of a multiple scattering picture, we factorize the cross section for direct photon production into calculable short-distance partonic parts times multiparton correlation functions in nuclei. We present the hadron-nucleus cross section as Aα times the hadron-nucleon cross section. Using informat...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2019
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2018.10.046