Nucleon form factors: the space-time connection

被引：4

作者：

Pacetti, S. ^{[1
,2
,3
]}

机构：

[1] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[2] Museo Stor Fis, Rome, Italy

[3] Ctr Studi Ric E Fermi, Rome, Italy

来源：

CHINESE PHYSICS C | 2010年 / 34卷 / 06期

关键词：

dispersion relations; nucleon form factors; pQCD; MOMENTUM-TRANSFER; DISPERSION-RELATIONS; ELASTIC-SCATTERING; PROTON; (GEV-C)2; REGION;

D O I：

10.1088/1674-1137/34/6/043

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：

Analyticity of nucleon form factors allows to derive sum rules which, using space-like and time-like data as input, can give unique information about behaviors in energy regions not experimentally accessible. Taking advantage from new time-like data on proton-antiproton differential cross section and hence the possibility to separate electric and magnetic form factors also in the time-like region, we verify the consistency of the asymptotic behavior predicted by the perturbative QCD for the proton magnetic form factor.

引用

页码：874 / 876

页数：3

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