Impact of nuclear effects on the determination of the nucleon axial mass

被引：42

作者：

Benhar, Omar ^{[1
,2
]}

Meloni, Davide ^{[3
,4
]}

机构：

[1] Univ Roma La Sapienza, Ist Nazl Fis Nucl, I-00185 Rome, Italy

[2] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy

[3] Univ Roma Tre, Dept Phys, I-00146 Rome, Italy

[4] Univ Roma Tre, Ist Nazl Fis Nucl, I-00146 Rome, Italy

来源：

PHYSICAL REVIEW D | 2009年 / 80卷 / 07期

关键词：

SPECTRAL-FUNCTION; CROSS-SECTIONS; NEUTRINO; SCATTERING;

D O I：

10.1103/PhysRevD.80.073003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze the influence of nuclear effects on the determination of the nucleon axial mass from nuclear cross sections. Our work is based on a formalism widely applied to describe electron-nucleus scattering data in the impulse approximation regime. The results of numerical calculations show that correlation effects, not taken into account by the relativistic Fermi gas model, sizably affect the Q(2) dependence of the cross section. However, their inclusion does not appear to explain the large values of the axial mass recently reported by the K2K and MiniBooNE Collaborations.

引用

页数：6

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