Nuclear quasielastic electron scattering limits nucleon off-mass shell properties

被引：8

作者：

Miller, Gerald A. ^{[1
]}

Thomas, Anthony W. ^{[2
]}

Carroll, Jonathan D. ^{[2
]}

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[2] Univ Adelaide, CSSM, Sch Phys & Chem, Adelaide, SA 5005, Australia

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 06期

基金：

澳大利亚研究理事会; 美国能源部;

关键词：

INTEGRAL-EQUATIONS; LAMB SHIFT;

D O I：

10.1103/PhysRevC.86.065201

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：

The use of quasielastic electron nucleus scattering is shown to provide significant constraints on models of the proton electromagnetic form factor of off-shell nucleons. Such models can be constructed to be consistent with constraints from current conservation and low-energy theorems, while also providing a contribution to the Lamb shift that might potentially resolve the proton radius puzzle in muonic hydrogen. However, observations of quasielastic scattering limit the overall strength of the off-shell form factors to values that correspond to small contributions to the Lamb shift.

引用

页数：7

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