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Parity violation in quasielastic electron-nucleus scattering within the relativistic impulse approximation

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Abstract
We study parity violation in quasielastic electron-nucleus scattering using the relativistic impulse approximation. Different fully relativistic approaches have been considered to estimate the effects associated with the final-state interactions. We have computed the parity-violating quasielastic (PVQE) asymmetry and have analyzed its sensitivity to the different ingredients that enter into the description of the reaction mechanism: final-state interactions, nucleon off-shellness effects, and current gauge ambiguities. Particular attention has been paid to the description of the weak neutral current form factors. The PVQE asymmetry is proven to be an excellent observable when the goal is to get precise information on the axial-vector sector of the weak neutral current. Specifically, from measurements of the asymmetry at backward scattering angles good knowledge of the radiative corrections entering in the isovector axial-vector sector can be gained. Finally, scaling properties shown by the interference gamma - Z nuclear responses are also analyzed.
Keywords
NEUTRAL-CURRENT, OFF-SHELL NUCLEON, MEAN-FIELD, FERMI GAS, E, E'P REACTIONS, CROSS-SECTIONS, FORM-FACTORS, PION, POLARIZATION, RESPONSES

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Citation

Please use this url to cite or link to this publication:

Chicago
González Jiménez, Raúl, JA Caballero, and TW Donnelly. 2015. “Parity Violation in Quasielastic Electron-nucleus Scattering Within the Relativistic Impulse Approximation.” Physical Review C 91 (4).
APA
González Jiménez, R., Caballero, J., & Donnelly, T. (2015). Parity violation in quasielastic electron-nucleus scattering within the relativistic impulse approximation. PHYSICAL REVIEW C, 91(4).
Vancouver
1.
González Jiménez R, Caballero J, Donnelly T. Parity violation in quasielastic electron-nucleus scattering within the relativistic impulse approximation. PHYSICAL REVIEW C. 2015;91(4).
MLA
González Jiménez, Raúl, JA Caballero, and TW Donnelly. “Parity Violation in Quasielastic Electron-nucleus Scattering Within the Relativistic Impulse Approximation.” PHYSICAL REVIEW C 91.4 (2015): n. pag. Print.
@article{6845641,
  abstract     = {We study parity violation in quasielastic electron-nucleus scattering using the relativistic impulse approximation. Different fully relativistic approaches have been considered to estimate the effects associated with the final-state interactions. We have computed the parity-violating quasielastic (PVQE) asymmetry and have analyzed its sensitivity to the different ingredients that enter into the description of the reaction mechanism: final-state interactions, nucleon off-shellness effects, and current gauge ambiguities. Particular attention has been paid to the description of the weak neutral current form factors. The PVQE asymmetry is proven to be an excellent observable when the goal is to get precise information on the axial-vector sector of the weak neutral current. Specifically, from measurements of the asymmetry at backward scattering angles good knowledge of the radiative corrections entering in the isovector axial-vector sector can be gained. Finally, scaling properties shown by the interference gamma - Z nuclear responses are also analyzed.},
  articleno    = {045502},
  author       = {Gonz{\'a}lez Jim{\'e}nez, Ra{\'u}l and Caballero, JA and Donnelly, TW},
  issn         = {0556-2813},
  journal      = {PHYSICAL REVIEW C},
  language     = {eng},
  number       = {4},
  pages        = {13},
  title        = {Parity violation in quasielastic electron-nucleus scattering within the relativistic impulse approximation},
  url          = {http://dx.doi.org/10.1103/PhysRevC.91.045502},
  volume       = {91},
  year         = {2015},
}

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