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arXiv 0903.2329hep-ph
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核效应对核子轴向质量测定的影响

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

Omar Benhar, Davide Meloni

摘要:

本文分析了核效应对由核截面确定核子轴向质量的影响。我们的工作是基于一个形式主义广泛应用于描述电子核散射数据的脉冲近似制度。数值计算结果表明,相对论费米气体模型未考虑的关联效应对截面的$Q^2$依赖性有很大影响.然而,它们的列入似乎并不能解释最近由K2K和MiniBooNE合作报告的轴向质量的大值。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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