Two-loop Feynman integrals for $\phi^4$ theory with long-range correlated disorder
| Autor: | Dudka, M. |
|---|---|
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | J. Math. Phys. 56, 013302 (2015) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.4904453 |
| Popis: | Two-loop massive Feynman integrals for $\phi^4$ field-theoretical model with long-range correlated disorder are considered. Massive integrals for the vertex function $\Gamma^{(4)}$ including two or three massless propagators for generic space dimension and for any value of the correlation parameter are evaluated analytically applying Mellin-Barnes method as well as familiar representation for one-loop integrals. Obtained expressions are presented in the form of hypergeometric functions. Comment: 28 pages, submitted to Journal of Mathematical Physics |
| Databáze: | arXiv |
| Externí odkaz: |
|