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Search for the decay Bs -> D*-+ \pi+-статья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: LHCb Collaboration (R A.(., Образцов В.Ф.
- Журнал: Physical Review D
- Том: 87
- Год издания: 2013
- Издательство: American Physical Society
- Местоположение издательства: United States
- DOI: 10.1103/PhysRevD.87.071101
- Аннотация: A search for the decay B0s→D∗∓π±Bs0→D∗∓π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb−11.0 fb−1 of pppp collisions collected by LHCb. This decay is expected to be mediated by a WW-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help to understand the mechanism behind related decays such as B0s→π+π−Bs0→π+π− and B0s→DD¯¯¯¯Bs0→DD¯. Systematic uncertainties are minimised by using B0→D∗∓π±B0→D∗∓π± as a normalisation channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(B0s→D∗∓π±)<6.1(7.8)×10−6B(Bs0→D∗∓π±)<6.1(7.8)×10−6 at 90% (95%) confidence level.
- Добавил в систему: Образцов Владимир Федорович