| Autor: |
I. L. Buchbinder, E. A. Ivanov, B. S. Merzlikin, K. V. Stepanyantz |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-28 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1029-8479 |
| DOI: |
10.1007/JHEP05(2023)089 |
| Popis: |
Abstract We study the off-shell structure of the two-loop effective action in 6D, N $$ \mathcal{N} $$ = (1, 1) supersymmetric gauge theories formulated in N $$ \mathcal{N} $$ = (1, 0) harmonic superspace. The off-shell effective action involving all fields of 6D, N $$ \mathcal{N} $$ = (1, 1) supermultiplet is constructed by the harmonic superfield background field method, which ensures both manifest gauge covariance and manifest N $$ \mathcal{N} $$ = (1, 0) supersymmetry. We analyze the off-shell divergences dependent on both gauge and hypermultiplet superfields and argue that the gauge invariance of the divergences is consistent with the non-locality in harmonics. The two-loop contributions to the effective action are given by harmonic supergraphs with the background gauge and hypermultiplet superfields. The procedure is developed to operate with the harmonic-dependent superpropagators in the two-loop supergraphs within the superfield dimensional regularization. We explicitly calculate the gauge and the hypermultiplet-mixed divergences as the coefficients of 1 ε 2 $$ \frac{1}{\varepsilon^2} $$ and demonstrate that the corresponding expressions are non-local in harmonics. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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