SIMPLE ONE-DIMENSIONAL INTEGRAL-REPRESENTATIONS FOR 2-LOOP SELF-ENERGIES - THE MASTER DIAGRAM

被引：100

作者：

BAUBERGER, S

BOHM, M

机构：

[1] Institut für Theoretische Physik, Universität Wr̈zburg, Am Hubland

来源：

NUCLEAR PHYSICS B | 1995年 / 445卷 / 01期

关键词：

D O I：

10.1016/0550-3213(95)00199-3

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：

The scalar two-loop self-energy master diagram is studied in the case of arbitrary masses. Analytical results in terms of Lauricella- and Appell-functions are presented for the imaginary part. By using the dispersion relation a one-dimensional integral representation is derived. This representation uses only elementary functions and is thus well suited for a numerical calculation of the master diagram.

引用

页码：25 / 46

页数：22

共 30 条

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