## Amplitude analysis of $B^- \to D^+ π^- π^-$ decaysстатья

Статья опубликована в высокорейтинговом журнале

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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 декабря 2016 г.
• Авторы:
• Журнал: Physical Review D
• Том: 94
• Номер: 7
• Год издания: 2016
• Издательство: American Physical Society
• Местоположение издательства: United States
• Первая страница: 072001
• DOI: 10.1103/PhysRevD.94.072001
• Аннотация: The Dalitz plot analysis technique is used to study the resonant substructures of B−→D+π−π− decays in a data sample corresponding to 3.0 fb−1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. A model-independent analysis of the angular moments demonstrates the presence of resonances with spins 1, 2 and 3 at high D+π− mass. The data are fitted with an amplitude model composed of a quasi-model-independent function to describe the D+π− S-wave together with virtual contributions from the D∗(2007)0 and B∗0 states, and components corresponding to the D∗2(2460)0, D∗1(2680)0, D∗3(2760)0 and D∗2(3000)0 resonances. The masses and widths of these resonances are determined together with the branching fractions for their production in B−→D+π−π− decays. The D+π− S-wave has phase motion consistent with that expected due to the presence of the D∗0(2400)0 state. These results constitute the first observations of the D∗3(2760)0 and D∗2(3000)0 resonances.
• Добавил в систему: Бережной Александр Викторович

### Работа с статьей

 [1] Amplitude analysis of b- →d+ π- π- decays / А. В. Бережной, И. В. Горелов, Н. В. Никитин et al. // Physical Review D. — 2016. — Vol. 94, no. 7. — P. 072001. The Dalitz plot analysis technique is used to study the resonant substructures of B−→D+π−π− decays in a data sample corresponding to 3.0 fb−1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. A model-independent analysis of the angular moments demonstrates the presence of resonances with spins 1, 2 and 3 at high D+π− mass. The data are fitted with an amplitude model composed of a quasi-model-independent function to describe the D+π− S-wave together with virtual contributions from the D∗(2007)0 and B∗0 states, and components corresponding to the D∗2(2460)0, D∗1(2680)0, D∗3(2760)0 and D∗2(3000)0 resonances. The masses and widths of these resonances are determined together with the branching fractions for their production in B−→D+π−π− decays. The D+π− S-wave has phase motion consistent with that expected due to the presence of the D∗0(2400)0 state. These results constitute the first observations of the D∗3(2760)0 and D∗2(3000)0 resonances. [ DOI ]