Electromagnetic form factors of the nucleon: New fit and analysis of uncertainties

被引：76

作者：

Alberico, W. M. ^{[1
,5
]}

Bilenky, S. M. ^{[2
,3
]}

Giunti, C. ^{[1
,5
]}

Graczyk, K. M. ^{[1
,4
,5
]}

机构：

[1] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy

[2] Joint Inst Nucl Res Dubna, BLTP, RU-141980 Dubna, Russia

[3] Tech Univ Munich, Phys Dept E15, D-85748 Garching, Germany

[4] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland

[5] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

来源：

PHYSICAL REVIEW C | 2009年 / 79卷 / 06期

关键词：

ELECTRON-PROTON SCATTERING; SQUARED 4-MOMENTUM TRANSFERS; QUASI-ELASTIC SCATTERING; CROSS-SECTIONS; MOMENTUM-TRANSFERS; POLARIZATION TRANSFER; DEUTERON SCATTERING; NEUTRON; RATIO; 2-PHOTON-EXCHANGE;

D O I：

10.1103/PhysRevC.79.065204

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：

Electromagnetic form factors of proton and neutron, obtained from a new fit of data, are presented. The proton form factors are obtained from a simultaneous fit to the ratio mu(p)G(Ep)/G(Mp) determined from polarization transfer measurements and to ep elastic cross section data. Phenomenological two-photon exchange corrections are taken into account. The present fit for protons was performed in the kinematical region Q(2)is an element of(0,6) GeV2. For both protons and neutrons we use the latest available data. For all form factors, the uncertainties and correlations of form factor parameters are investigated with the chi(2) method.</p>.

引用

页数：12

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