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

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

2009-03-13

arxiv.org/abs/0903.2329v1

Phys.Rev.D80:073003,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, three figures

Scientific paper

10.1103/PhysRevD.80.073003

We analize 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.

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