Extracting the Distribution Amplitudes of the ρ meson from the Color Glass Condensate

被引：18
|
作者：
Forshaw, J. R. [1 ]
Sandapen, R. [2 ]
机构：
[1] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England
[2] Univ Moncton, Dept Phys & Astron, Moncton, NB E1A 3E9, Canada
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2011年 / 10期
关键词：
QCD Phenomenology; VECTOR-MESONS; ELECTROPRODUCTION; SATURATION; EQUATION; QCD;
D O I：
10.1007/JHEP10(2011)093
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：
We extract the twist-2 and twist-3 Distribution Amplitudes (DAs) of the rho meson using the HERA data on diffractive rho photoproduction. We do so using several Colour Glass Condensate (CGC) inspired and a Regge inspired dipole models. We find that our extracted twist-2 DA is not much model dependent and is consistent with QCD Sum Rules and lattice predictions. The extracted twist-3 DA is more model dependent but is still consistent with the Sum Rules prediction.
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页数：22
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