Random-phase-approximation-type vertex corrections to the axial-vector current
We study the isovector weak response of the core to an external perturbation using linear response theory in nuclear matter. We extend previous results to the kinematic region away from the long wavelength regime where the effects have been proven small. For the muon capture process we found a sizab...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_05562813_v49_n4_p2005_Izquierdo |
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todo:paper_05562813_v49_n4_p2005_Izquierdo2023-10-03T15:34:45Z Random-phase-approximation-type vertex corrections to the axial-vector current Izquierdo, E.D. Gattone, A.O. We study the isovector weak response of the core to an external perturbation using linear response theory in nuclear matter. We extend previous results to the kinematic region away from the long wavelength regime where the effects have been proven small. For the muon capture process we found a sizable quenching of the contribution of the induced pseudoscalar term. Applied to actual nuclei, however, the strong density dependence of the weak isovector response washes out the screening found at nuclear matter densities, slightly modifying muon capture rates. © 1994 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_05562813_v49_n4_p2005_Izquierdo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We study the isovector weak response of the core to an external perturbation using linear response theory in nuclear matter. We extend previous results to the kinematic region away from the long wavelength regime where the effects have been proven small. For the muon capture process we found a sizable quenching of the contribution of the induced pseudoscalar term. Applied to actual nuclei, however, the strong density dependence of the weak isovector response washes out the screening found at nuclear matter densities, slightly modifying muon capture rates. © 1994 The American Physical Society. |
| format |
JOUR |
| author |
Izquierdo, E.D. Gattone, A.O. |
| spellingShingle |
Izquierdo, E.D. Gattone, A.O. Random-phase-approximation-type vertex corrections to the axial-vector current |
| author_facet |
Izquierdo, E.D. Gattone, A.O. |
| author_sort |
Izquierdo, E.D. |
| title |
Random-phase-approximation-type vertex corrections to the axial-vector current |
| title_short |
Random-phase-approximation-type vertex corrections to the axial-vector current |
| title_full |
Random-phase-approximation-type vertex corrections to the axial-vector current |
| title_fullStr |
Random-phase-approximation-type vertex corrections to the axial-vector current |
| title_full_unstemmed |
Random-phase-approximation-type vertex corrections to the axial-vector current |
| title_sort |
random-phase-approximation-type vertex corrections to the axial-vector current |
| url |
http://hdl.handle.net/20.500.12110/paper_05562813_v49_n4_p2005_Izquierdo |
| work_keys_str_mv |
AT izquierdoed randomphaseapproximationtypevertexcorrectionstotheaxialvectorcurrent AT gattoneao randomphaseapproximationtypevertexcorrectionstotheaxialvectorcurrent |
| _version_ |
1807322348254134272 |