Model independent study of massive lepton elastic scattering on the proton, beyond the Born approximation

被引：11

作者：

Gakh, G. I. ^{[1
,2
]}

Konchatnyi, M. ^{[1
]}

Dbeyssi, A. ^{[3
]}

Tomasi-Gustafsson, E. ^{[4
,5
]}

机构：

[1] Kharkov Inst Phys & Technol, Natl Sci Ctr, UA-61108 Kharkov, Ukraine

[2] Kharkov Natl Univ, Dept Phys & Technol, UA-61108 Kharkov, Ukraine

[3] Helmholtz Inst Mainz, D-55099 Mainz, Germany

[4] CEA Saclay, DSM JERFU SPhN, F-91191 Gif Sur Yvette, France

[5] Univ Paris 11, CNRS, IN2P3, Inst Phys Nucl,UMR 8608, F-91406 Orsay, France

来源：

NUCLEAR PHYSICS A | 2015年 / 934卷

关键词：

Elastic lepton-proton scattering; Lepton mass; Two photon exchange; Polarization; ELECTRON-DEUTERON SCATTERING; 2-PHOTON-EXCHANGE;

D O I：

10.1016/j.nuclphysa.2014.12.003

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：

Model independent expressions for all polarization observables in mu + p -> mu + p elastic scattering are obtained, taking into account the lepton mass and including the two-photon exchange contribution. The spin structure of the matrix element is parametrized in terms of six independent complex amplitudes, functions of two independent kinematical variables. General statements about the influence of the two-photon-exchange terms on the differential cross section and on polarization observables are given. Polarization effects have been investigated for the case of a longitudinally polarized lepton beam and polarized nucleon in the final state. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：52 / 72

页数：21

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