Reconsideration of the inclusive prompt photon production at the LHC with kt-factorizationстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 28 октября 2016 г.
Аннотация:We reconsider the inclusive production of isolated prompt photons in pp collisions at the LHC energies
in the framework of kT-factorization approach. Our analysis is based on the O(αα_s) off-shell depending on the transverse momenta of initial quarks and gluons) production amplitudes of qg → γq and qq → γg partonic subprocesses and transverse momentum dependent (or unintegrated) quark and gluon densities in a proton, which are chosen in accordance with the Kimber-Martin-Ryskin prescription. We show that the subleading O(αα_s) high-order contributions, not covered by the noncollinear evolution of parton densities, are important to describe latest LHC data.