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Comparison of direct and indirect constraints on anomalous tWb couplingsстатья
Дата последнего поиска статьи во внешних источниках: 4 августа 2021 г.
- Автор: Kozachuk A.
- Журнал: Proceedings of Science
- Том: 364
- Год издания: 2020
- Издательство: Sissa Medialab
- Местоположение издательства: Italy
- Первая страница: 1
- Последняя страница: 6
- Номер статьи: 629
- DOI: 10.22323/1.364.0629
- Аннотация: We analyze constraints on anomalous couplings of the Wtb vertex. In particular, we look at scenarios when two of four possible couplings are allowed to vary from their Standard Model values and obtain corresponding indirect constraints from three channels in B-physics: Bd,s−B¯d,s oscillations, inclusive decay B→Xsγ and inclusive decay B→Xsℓ+ℓ−. We compare our results with constraints of similar scenarios obtained from direct experimental study of the Wtb vertex in the t-channel single top quark production cross section. We conclude that in most two-dimensional scenarios indirect constraints are more rigid. So far, no deviations from the Standard Model have been found.
- Добавил в систему: Мелихов Дмитрий Игоревич