Investigating the high-energy QCD approaches for prompt-photon production at the LHC期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Investigating the high-energy QCD approaches for prompt-photon production at the LHC

Authors:	M V T Machado and C Brenner Mariotto

Institution:	(1) Centro de Ciências Exatas e Tecnológicas, Universidade Federal do Pampa, Campus de Bagé, Rua Carlos Barbosa, 96400-970 Bagé, RS, Brazil;(2) Departamento de Física, Universidade Federal do Rio Grande, Box 474, 96201-900 Rio Grande, RS, Brazil

Abstract:	We investigate the rapidity and transverse-momentum distributions of the prompt photon production at the CERN LHC energies considering the current perturbative QCD approaches for this scattering process. Namely, we compare the predictions from the usual NLO pQCD calculations to the color-dipole formalism, using distinct dipole cross sections. Special attention is paid to parton-saturation models at high energies, which are expected to be important at the forward rapidities in pp collisions ( $\sqrt{s}=14$ TeV) at the LHC.

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