Exclusive photoproduction of a γ ρ pair with a large invariant mass

被引：43
作者：
Boussarie, R. [1 ]
Pire, B. [2 ]
Szymanowski, L. [3 ]
Wallon, S. [1 ,4 ]
机构：
[1] Univ Paris Saclay, Univ Paris Sud, CNRS, LPT, F-91405 Orsay, France
[2] Univ Paris Saclay, Ecole Polytech, CNRS, Ctr Phys Theor, F-91128 Palaiseau, France
[3] Natl Ctr Nucl Res NCBJ, PL-00681 Warsaw, Poland
[4] Univ Paris 06, Fac Phys, 4 Pl Jussieu, F-75252 Paris 05, France
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2017年 / 02期
关键词：
QCD Phenomenology; GENERALIZED PARTON DISTRIBUTIONS; EVOLUTION-EQUATIONS; LATTICE QCD; TRANSVERSITY; ELECTROPRODUCTION; APPROXIMATION; GPDS;
D O I：
10.1007/JHEP02(2017)054
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Exclusive photoproduction of a gamma rho pair in the kinematics where the pair has a large invariant mass and the final nucleon has a small transverse momentum is described in the collinear factorization framework. The scattering amplitude is calculated at leading order in as and the differential cross sections for the process where the rho-meson is either longitudinally or transversely polarized are estimated in the kinematics of the JLab 12-GeV experiments.
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页数：52
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