Extracting the ρ meson wavefunction from HERA data

被引：26
|
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 | 2010年 / 11期
关键词：
QCD Phenomenology; VECTOR-MESONS; EXCLUSIVE PROCESSES; ELECTROPRODUCTION; LEPTOPRODUCTION; PHOTOPRODUCTION;
D O I：
10.1007/JHEP11(2010)037
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 light-cone wavefunctions of the rho meson using the HERA data on diffractive rho photoproduction. We find good agreement with predictions for the distribution amplitude based on QCD sum rules and from the lattice. We also find that the data prefer a transverse wavefunction with enhanced end-point contributions.
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页数：13
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