|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ПсковГУ |
||
Computer Algebra Calculations in Supersymmetric Electrodynamicsстатья Исследовательская статья
- Автор: Shirokov I.E.
- Журнал: Programming and Computer Software
- Том: 49
- Номер: 2
- Год издания: 2023
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 122
- Последняя страница: 130
- DOI: 10.1134/S0361768823020147
- Аннотация: We propose a new symbolic algorithm and a C++ program for generating and calculating supersymmetric Feynman diagrams for ${\cal N}=1$ supersymmetric electrodynamics regularized by higher derivatives in four dimensions. According to standard rules, the program generates all diagrams that are necessary to calculate a specific contribution to the two-point Green function of matter superfields in the needed order, and then reduces the answer to the sum of Euclidean momentum integrals. At the moment, the program was used to calculate the anomalous dimension in ${\cal N}=1$ supersymmetric quantum electrodynamics, regularized by higher derivatives, in the three-loop approximation.
- Добавил в систему: Широков Илья Евгеньевич