Massless sunset diagrams in finite asymmetric volumes
| Autor: | Peter Weisz, Ferenc Niedermayer |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Nuclear and High Energy Physics 010308 nuclear & particles physics High Energy Physics::Lattice High Energy Physics - Lattice (hep-lat) FOS: Physical sciences Sunset 01 natural sciences Massless particle Dimensional regularization Theoretical physics High Energy Physics - Lattice Lattice (order) 0103 physical sciences 010306 general physics |
| Zdroj: | Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| Popis: | This paper discusses the methods and the results used in an accompanying paper describing the matching of effective chiral Lagrangians in dimensional and lattice regularizations. We present methods to compute 2-loop massless sunset diagrams in finite asymmetric volumes in the framework of these regularizations. We also consider 1-loop sums in both regularizations, extending the results of Hasenfratz and Leutwyler for the case of dimensional regularization and we introduce a new method to calculate precisely the expansion coefficients of the 1-loop lattice sums. Comment: published version, 57 pages, no figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink