Possible hadronic molecule structure of the Y(3940) and Y(4140)

Tanja Branz, Thomas Gutsche, Valery E. Lyubovitskij

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

4 Цитирования (Scopus)

Выдержка

In the present article we report on evidence for hadronic molecule structures in the charmonium sector. In particular we discuss the Y(3940) and the recently observed Y(4140) as heavy hadron molecule states with quantum numbers JPC =0++ or 2++. The Y(3940) state is considered to be a superposition of D*+D*- and D*0D*0, while the Y(4140) is a bound state of D s *+ and D s *- mesons. We give predictions for both the strong Y(3940) rarr; J/Ψω, Y(4140) → J/Ψφ and radiative Y(3940)/Y(4140)→γ γ decay widths in a phenomenological Lagrangian approach. The results for the strong hidden charm decay modes clearly support the molecular interpretation of the Y(3940) and Y(4140), while our estimates for the radiative decays provide a sensitive test for the underlying meson structure of the two Y mesons discussed here. The alternative assignment of JPC = 2++ is also tested, giving similar results for the strong decay widths.

Язык оригиналаАнглийский
Название основной публикацииHadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy
Страницы432-436
Число страниц5
Том1257
DOI
СостояниеОпубликовано - 2010
Опубликовано для внешнего пользованияДа
Событие13th International Conference on Hadron Spectroscopy, Hadron 2009 - Tallahassee, FL, Соединенные Штаты Америки
Продолжительность: 29 ноя 20094 дек 2009

Конференция

Конференция13th International Conference on Hadron Spectroscopy, Hadron 2009
СтранаСоединенные Штаты Америки
ГородTallahassee, FL
Период29.11.094.12.09

Отпечаток

mesons
decay
molecules
quantum numbers
sectors
estimates
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Цитировать

Branz, T., Gutsche, T., & Lyubovitskij, V. E. (2010). Possible hadronic molecule structure of the Y(3940) and Y(4140). В Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy (Том 1257, стр. 432-436) https://doi.org/10.1063/1.3483365

Possible hadronic molecule structure of the Y(3940) and Y(4140). / Branz, Tanja; Gutsche, Thomas; Lyubovitskij, Valery E.

Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy. Том 1257 2010. стр. 432-436.

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Branz, T, Gutsche, T & Lyubovitskij, VE 2010, Possible hadronic molecule structure of the Y(3940) and Y(4140). в Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy. том. 1257, стр. 432-436, 13th International Conference on Hadron Spectroscopy, Hadron 2009, Tallahassee, FL, Соединенные Штаты Америки, 29.11.09. https://doi.org/10.1063/1.3483365
Branz T, Gutsche T, Lyubovitskij VE. Possible hadronic molecule structure of the Y(3940) and Y(4140). В Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy. Том 1257. 2010. стр. 432-436 https://doi.org/10.1063/1.3483365
Branz, Tanja ; Gutsche, Thomas ; Lyubovitskij, Valery E. / Possible hadronic molecule structure of the Y(3940) and Y(4140). Hadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy. Том 1257 2010. стр. 432-436
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N2 - In the present article we report on evidence for hadronic molecule structures in the charmonium sector. In particular we discuss the Y(3940) and the recently observed Y(4140) as heavy hadron molecule states with quantum numbers JPC =0++ or 2++. The Y(3940) state is considered to be a superposition of D*+D*- and D*0D*0, while the Y(4140) is a bound state of D s *+ and D s *- mesons. We give predictions for both the strong Y(3940) rarr; J/Ψω, Y(4140) → J/Ψφ and radiative Y(3940)/Y(4140)→γ γ decay widths in a phenomenological Lagrangian approach. The results for the strong hidden charm decay modes clearly support the molecular interpretation of the Y(3940) and Y(4140), while our estimates for the radiative decays provide a sensitive test for the underlying meson structure of the two Y mesons discussed here. The alternative assignment of JPC = 2++ is also tested, giving similar results for the strong decay widths.

AB - In the present article we report on evidence for hadronic molecule structures in the charmonium sector. In particular we discuss the Y(3940) and the recently observed Y(4140) as heavy hadron molecule states with quantum numbers JPC =0++ or 2++. The Y(3940) state is considered to be a superposition of D*+D*- and D*0D*0, while the Y(4140) is a bound state of D s *+ and D s *- mesons. We give predictions for both the strong Y(3940) rarr; J/Ψω, Y(4140) → J/Ψφ and radiative Y(3940)/Y(4140)→γ γ decay widths in a phenomenological Lagrangian approach. The results for the strong hidden charm decay modes clearly support the molecular interpretation of the Y(3940) and Y(4140), while our estimates for the radiative decays provide a sensitive test for the underlying meson structure of the two Y mesons discussed here. The alternative assignment of JPC = 2++ is also tested, giving similar results for the strong decay widths.

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