Operator expansions in the minimal subtraction scheme. I. The gluing method
Operator expansions in the minimal subtraction scheme. I. The gluing method
复制标题
最小减法方案中的运算符扩展。
DOI:
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发表时间:
1988
期刊:
影响因子:
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通讯作者:
K. Chetyrkin
中科院分区:
文献类型:
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作者:
K. Chetyrkin
The aim of this paper is to give an exposition of the combinatorial part of the proof of the generalized operator expansion at short distances in the minimal subtraction scheme based on the use of the gluing method and the counterterm technique to the case of Lagrangians and currents without normal ordering. Our approach is not based directly on expression of the renormalization procedure in terms of the action of a subtracting operator. Instead of this, we use specific features of dimensional regularization and one of the most characteristic properties of the R operation - the equivalence of this operation to the introduction of local counterterms in the Lagrangian.