Dispersion relation formalism for virtual Compton scattering off the proton

被引：63
|
作者：
Pasquini, B
Gorchtein, M
Drechsel, D
Metz, A
Vanderhaeghen, M [1 ]
机构：
[1] ECT, I-38050 Trent, Italy
[2] Ist Nazl Fis Nucl, I-38050 Trent, Italy
[3] Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany
[4] Vrije Univ Amsterdam, Fac Sci, Div Phys & Astron, NL-1081 HV Amsterdam, Netherlands
来源：
EUROPEAN PHYSICAL JOURNAL A | 2001年 / 11卷 / 02期
关键词：
D O I：
10.1007/s100500170084
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：
We present in detail a dispersion relation formalism for virtual Compton scattering (VCS) off the proton from threshold into the Delta (1232)-resonance region. Such a formalism can be used as a tool to extract the generalized polarizabilities of the proton from both unpolarized and polarized VCS observables over a larger energy range. We present calculations for existing and forthcoming VCS experiments and demonstrate that the VCS observables in the energy region between pion production threshold and the Delta (1232)-resonance show an enhanced sensitivity to the generalized polarizabilities.
引用
收藏
页码：185 / 208
页数：24
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