Exclusive electroproduction of vector mesons at HERMES

被引：0
|
作者：
Borissov, A [1 ]
机构：
[1] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
来源：
NUCLEAR PHYSICS A | 2005年 / 755卷
关键词：
D O I：
10.1016/j.nuclphysa.2005.03.117
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The exclusive diffractive production of light vector mesons (rho(0),phi) in the intermediate energy region at moderate Q(2) is described. The longitudinal components of cross sections on hydrogen target are shown in comparison with theoretical calculations based on the generalized parton distributions to identify the production mechanisms of vector mesons. In the case of nitrogen target for fixed coherence length a rise of the nuclear transparency with Q(2) is observed for both coherent and incoherent rho(0) production. This is in agreement with theoretical calculations that include the effect of color transparency.
引用
收藏
页码：634C / 637C
页数：4
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