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Parity violation and dynamical relativistic effects in ([ ⃗ over e],e[superscript ′]N) reactions

Author(s)
Caballero, J. A.; Gonzalez-Jimenez, R.; Donnelly, T William
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Abstract
It is well known that coincidence quasielastic ([ ⃗ over e],e[superscript ′]N) reactions are not appropriate to analyze effects linked to parity violation due the presence of the fifth electromagnetic response R[superscript TL′]. Nevertheless, in this work we develop a fully relativistic approach to be applied to parity-violating (PV) quasielastic ([ ⃗ over e],e[superscript ′]N) processes. This is of importance as a preliminary step in the subsequent study of inclusive quasielastic PV ([ ⃗ over e],e[superscript ′]) reactions. Moreover, our present analysis allows us to disentangle effects associated with the off-shell character of nucleons in nuclei, gauge ambiguities, and the role played by the lower components in the nucleon wave functions, i.e., dynamical relativistic effects. This study can help in getting clear information on PV effects. Particular attention is paid to the relativistic plane-wave impulse approximation where the explicit expressions for the PV single-nucleon responses are shown for the first time.
Date issued
2015-04
URI
http://hdl.handle.net/1721.1/96665
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review C
Publisher
American Physical Society
Citation
Gonzalez-Jimenez, R., J. A. Caballero, and T. W. Donnelly. "Parity violation and dynamical relativistic effects in ([ ⃗ over e],e[superscript ′]N) reactions." Phys. Rev. C 91, 045503 (April 2015). © American Physical Society
Version: Final published version
ISSN
0556-2813
1089-490X

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