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arXiv 0802.1745nucl-thhep-ph
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中性流准弹性中微子-核散射的超标度预测

Superscaling Predictions for Neutral Current Quasielastic Neutrino-Nucleus Scattering

M. C. Martinez, J. A. Caballero, T. W. Donnelly, J. M. Udias

摘要:

研究了超标度理论在预测中性流准弹性中微子截面中的应用。使用相同的相对论平均场势(RMF)的初始和最终核子-一个模型,再现实验(e,e ')标度函数-内的相对论脉冲近似(RIA)得到的结果被用来说明所涉及的想法。虽然NC反应不太适合标度分析,但在很大程度上RIA-RMF预测确实表现出超标度。标度响应对核素的独立性得到了很好的实现。RIA-RMF NC超标度函数与实验值(e,e ')符合得很好。电弱过程可以用一个通用的标度函数来描述,只要假设运动学上有温和的限制,这一想法是有效的。

英文摘要:

The application of superscaling ideas to predict neutral-current (NC) quasielastic (QE) neutrino cross sections is investigated. Results obtained within the relativistic impulse approximation (RIA) using the same relativistic mean field potential (RMF) for both initial and final nucleons -- a model that reproduces the experimental (e,e') scaling function -- are used to illustrate the ideas involved. While NC reactions are not so well suited for scaling analyses, to a large extent the RIA-RMF predictions do exhibit superscaling. Independence of the scaled response on the nuclear species is very well fulfilled. The RIA-RMF NC superscaling function is in good agreement with the experimental (e,e') one. The idea that electroweak processes can be described with a universal scaling function, provided that mild restrictions on the kinematics are assumed, is shown to be valid.

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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