Relativistic nuclear structure effects in quasielastic neutrino scattering

Details Relativistic nuclear structure effects in quasielastic neutrino scattering Relativistic nuclear structure effects in quasielastic neutrino scattering

1994-12-09

arxiv.org/abs/nucl-th/9412017v1

Phys.Rev.C51:2739-2749,1995

Physics

Nuclear Physics

Nuclear Theory

26 pages, revtex, 6 postscript figures (available upon request)

Scientific paper

10.1103/PhysRevC.51.2739

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-phase-approximation (RPA) corrections and momentum-dependent nucleon self-energies, influence the extraction of the axial form factor of the nucleon. RPA corrections are important only at low-momentum transfers. In contrast, the momentum dependence of the relativistic self-energies changes appreciably the value of the axial-mass parameter, $M_A$, extracted from dipole fits to the axial form factor. Using Brookhaven's experimental neutrino spectrum we estimate the sensitivity of M$_A$ to various relativistic nuclear-structure effects.

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