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arXiv 0706.4277nucl-th
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关于核流算符的Wilson重整化群方程

On the Wilsonian renormalization group equation for nuclear current operators

A. N. Kvinikhidze, B. Blankleider

摘要:

本文给出了最近导出的核电流算符的Wilson重整化群方程的解。为了消除RG方程本身的模糊性,我们引入了一个新的条件,规定了五点格林函数的截止独立性与当前操作插入的两体传播子。由此产生的有效电流算子,然后示出服从修改后的沃德-高桥恒等式,它不同于通常的,但仍然导致当前的守恒。

英文摘要:

We present the solution to the recently derived Wilsonian renormalization group (RG) equation for nuclear current operators. In order to eliminate the present ambiguity in the RG equation itself, we introduce a new condition specifying the cutoff independence of the five point Green function corresponding to the two-body propagator with current operator insertion. The resulting effective current operator is then shown to obey a modified Ward-Takahashi identity which differs from the usual one, but that nevertheless leads to current conservation.

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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