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Leading twist asymmetries in deeply virtual Compton Scattering

被引：67
作者：
Belitsky, AV
Müller, D
Niedermeier, L
Schäfer, A
机构：
[1] SUNY Stony Brook, CN Yang Inst Theoret Phys, Stony Brook, NY 11794 USA
[2] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany
来源：
NUCLEAR PHYSICS B | 2001年 / 593卷 / 1-2期
关键词：
deeply virtual Compton scattering; asymmetries; skewed parton distribution;
D O I：
10.1016/S0550-3213(00)00588-5
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 calculate spin, charge, and azimuthal asymmetries in deeply virtual Compton scattering at leading twist-two level. The measurement of these asymmetries gives access to the imaginary and real part of all deeply virtual Compton scattering amplitudes. We note that a consistent description of this process requires taking into account twist-three contributions and we give then a model dependent estimate of these asymmetries. (C) 2001 Elsevier Science B.V. All rights reserved.
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收藏
页码：289 / 310
页数：22
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