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arXiv 0902.2933nucl-th
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低动量转移时核物质的弱响应

Weak Response of Nuclear Matter at low Momentum transfer

Nicola Farina

摘要:

对弱核反应的定量理解是计算机模拟超新星$æ$爆炸和中子星冷却等天体物理现象的先决条件。为了减少系统的不确定性与模拟,一个一致的框架,能够考虑到动力学关联效应,需要计算中微子-核子和中微子-核反应速率。本文描述低能区弱核响应的多体理论。我们展示了如何以一致的方式包括短期和长期相关性效应。

英文摘要:

A quantitative understanding of the weak nuclear response is a prerequisite for the computer simulations of astrophysical phenomena like supernov$æ$ explosions and neutron star cooling. In order to reduce the systematic uncertainties associated with the simulations, a consistent framework, able to take into account dynamical correlation effects, is needed to compute neutrino-nucleon and neutrino-nucleus reaction rates. In this paper we describe the many-body theory of the weak nuclear response at low energy regime. We show how to include both short and long correlations effects in a consistent fashion.

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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