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On gauge dependence of the one-loop divergences in 6D, N=(1,0) and N=(1,1) SYM theoriesстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 декабря 2019 г.
- Авторы: Buchbinder I.L., Ivanov E.A., Merzlikin B.S., Stepanyantz K.V.
- Журнал: Physics Letters B
- Том: 798
- Год издания: 2019
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 134957
- DOI: 10.1016/j.physletb.2019.134957
- Аннотация: We study the gauge dependence of one-loop divergences in a general matter-coupled $6D$ $\cN=(1,0)$ supersymmetric gauge theory in the harmonic superspace formulation. Our analysis is based on the effective action constructed by the background superfield method, with the gauge-fixing term involving one real parameter $\xi_0$. A manifestly gauge invariant and $\cN=(1,0)$ supersymmetric procedure for calculating the one-loop effective action is developed. It yields the one-loop divergences in an explicit form and allows one to investigate their gauge dependence. As compared to the minimal gauge, $\xi_0=1$, the divergent part of the general-gauge effective action contains a new term depending on $\xi_0\,$. This term vanishes for the background superfields satisfying the classical equations of motion, so that the $S$-matrix divergences are gauge-independent. In the case of $6D$, $\cN= (1,1)$ SYM theory we demonstrate that some divergent contributions in the non-minimal gauges do not vanish off shell, as opposed to the minimal gauge.
- Добавил в систему: Степаньянц Константин Викторович