SOME EXACT RESULTS FOR 2-LOOP DIAGRAMS WITH 3 AND 4 EXTERNAL LINES

Authors
USSYUKINA NI DAVYDYCHEV AI
Citation
Ni. Ussyukina et Ai. Davydychev, SOME EXACT RESULTS FOR 2-LOOP DIAGRAMS WITH 3 AND 4 EXTERNAL LINES, Physics of atomic nuclei, 56(11), 1993, pp. 1553-1557
Citations number
27
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields
Journal title
Physics of atomic nuclei → ACNP
ISSN journal
10637788
Volume
56
Issue
11
Year of publication
1993
Pages
1553 - 1557
Database
ISI
SICI code
1063-7788(1993)56:11<1553:SERF2D>2.0.ZU;2-3
Abstract
Evaluation of three- and four-point diagrams with massless internal pa rticles and arbitrary external momenta is considered. Exact results fo r some two-loop diagrams (planar and nonplanar three-point contributio ns and the ''double box'' diagram) are obtained in terms of polylogari thms.