Relativistic and nuclear structure effects in parity-violating quasielastic electron scattering
نویسندگان
چکیده
منابع مشابه
Relativistic and nuclear structure effects in parity-violating quasielastic electron scattering.
The parity violating longitudinal asymmetry A is calculated for quasielastic electron scattering. We use a variety of relativistic mean field models for the response of nuclear matter and 12 C at a momentum transfer of q=550 MeV/c. Relativistic effects from a reduced nucleon mass, RPA correlations and vacuum polarization can all change A by a relatively large amount. These large nuclear structu...
متن کاملRelativistic pionic effects in quasielastic electron scattering
The impact of relativistic pionic correlations and meson-exchange currents on the response functions for electromagnetic quasielastic electron scattering from nuclei is studied in detail. Results in first-order perturbation theory are obtained for one-particle emission electronuclear reactions within the context of the relativistic Fermi gas model. Improving upon previous analyses where non-rel...
متن کاملRelativistic nuclear structure effects in quasielastic neutrino scattering.
Charged-current cross sections are calculated for quasielastic neutrino and antineutrino scattering using a relativistic meson-nucleon model. We examine how nuclear-structure effects, such as relativistic random-phaseapproximation (RPA) corrections and momentum-dependent nucleon selfenergies, influence the extraction of the axial form factor of the nucleon. RPA corrections are important only at...
متن کاملParity-violating Electron Scattering and Nucleon Structure
The measurement of parity violation in the helicity dependence of electronnucleon scattering provides unique information about the basic quark structure of the nucleons. In this review, the general formalism of parity-violating electron scattering is presented, with emphasis on elastic electron-nucleon scattering. The physics issues addressed by such experiments is discussed, and the major goal...
متن کاملParity-Violating Electron Scattering
Measurements of parity-violating asymmetries in the scattering of longitudinally polarized electrons off unpolarized fixed targets are used to access leptonic and semi-leptonic weak neutral current amplitudes. One thrust of the current program is the measurement the elastic neutral weak amplitude at very low Q from scattering off a heavy spinless nucleus, which is sensitive to the presence of a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 1993
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.47.2924