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arXiv 0705.1429nucl-thhep-ph
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相对论平均场方法中轻子-核准弹性散射的标度效应和同位旋效应

Scaling and isospin effects in quasielastic lepton-nucleus scattering in the Relativistic Mean Field Approach

J. A. Caballero, J. E. Amaro, M. B. Barbaro, T. W. Donnelly, J. M. Udias

摘要:

在相对论冲量近似下,研究了电子准弹性散射和电荷变化中微子反应中同位旋的作用。我们分析质子和中子标度函数利用各种理论描述的最终状态的相互作用,重点介绍了强标量和矢量项的存在下引入的相对论平均场方法的影响。通过调用等差线和等矢量贡献的差异,对从$(e,e')$和$(ν,μ)$反应评价的标度函数中观察到的差异进行了解释。

英文摘要:

The role of isospin in quasielastic electron scattering and charge-changing neutrino reactions is investigated in the relativistic impulse approximation. We analyze proton and neutron scaling functions making use of various theoretical descriptions for the final-state interactions, focusing on the effects introduced by the presence of strong scalar and vector terms in the relativistic mean field approach. An explanation for the differences observed in the scaling functions evaluated from $(e,e')$ and $(ν,μ)$ reactions is provided by invoking the differences in isoscalar and isovector contributions.

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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