RELATIVISTIC NUCLEAR-STRUCTURE EFFECTS IN QUASI-ELASTIC NEUTRINO SCATTERING

被引:51
作者
KIM, H
PIEKAREWICZ, J
HOROWITZ, CJ
机构
[1] INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47408 USA
[2] FLORIDA STATE UNIV, SUPERCOMP COMPUTAT RES INST, TALLAHASSEE, FL 32306 USA
关键词
D O I
10.1103/PhysRevC.51.2739
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
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 MA extracted from dipole fits to the axial form factor. Using Brookhaven's experimental neutrino spectrum we estimate the sensitivity of MA to various relativistic nuclear-structure effects. © 1995 The American Physical Society.
引用
收藏
页码:2739 / 2749
页数:11
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