NEW REPRESENTATION OF 2-LOOP PROPAGATOR AND VERTEX FUNCTIONS

被引：0

作者：

CZARNECKI, A ^{[1
]}

KILIAN, U ^{[1
]}

KREIMER, D ^{[1
]}

机构：

[1] UNIV TASMANIA,DEPT PHYS,HOBART,TAS 7001,AUSTRALIA

来源：

NUCLEAR PHYSICS B | 1995年 / 433卷 / 02期

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D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present a new method of calculating scalar propagator and vertex functions in the two-loop approximation, for arbitrary masses of particles, It is based on a double integral representation, suitable for numerical evaluation, Real and imaginary parts of the diagrams are calculated separately, so that there is no need to use complex arithmetics in the numerical program.

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页码：259 / 275

页数：17

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