Hadronic molecule structure of the Y(3940) and Y(4140)

Tanja Branz, Thomas Gutsche, Valery E. Lyubovitskij

Результат исследований: Материалы для журналаСтатья

141 Цитирования (Scopus)

Выдержка

We report on further evidence that the Y(3940) and the recently observed Y(4140) are heavy hadron molecule states with quantum numbers JPC=0++. The Y(3940) state is considered to be a superposition of D*+D*- and D*0D*0̄, while the Y(4140) is a bound state of Ds*+ and Ds*- mesons. For the first time we give predictions for the strong Y(3940)→J/ψω, Y(4140)→J/ψ φ and radiative Y(3940)/Y(4140)→γγ decay widths in a phenomenological Lagrangian approach. Results for the strong J/ψV (V=ω, φ) decays clearly support the molecular interpretation of the Y(3940) and Y(4140). The alternative assignment of JPC=2++ is also tested, giving similar results for the strong decay widths.

Язык оригиналаАнглийский
Номер статьи054019
ЖурналPhysical Review D - Particles, Fields, Gravitation and Cosmology
Том80
Номер выпуска5
DOI
СостояниеОпубликовано - 21 сен 2009
Опубликовано для внешнего пользованияДа

Отпечаток

decay
molecules
quantum numbers
mesons
predictions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Цитировать

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

В: Physical Review D - Particles, Fields, Gravitation and Cosmology, Том 80, № 5, 054019, 21.09.2009.

Результат исследований: Материалы для журналаСтатья

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