Nuclear quasielastic electron scattering limits nucleon off-mass shell properties
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(Published version)
Date
2012
Authors
Miller, G.
Thomas, A.
Carroll, J.
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Journal article
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Physical Review C: Nuclear Physics, 2012; 86(6):1-7
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Gerald A. Miller, Anthony W. Thomas and Jonathan D. Carroll
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Abstract
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.
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Extent: 7p.
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©2012 American Physical Society