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The production of X(3940) and X(4160) in Bc decays

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Abstract

Considering X(3940) and X(4160) as ηc (3s ) and ηc (4s ), we study the production of X(3940) and X(4160) in exclusive weak decays of the Bc meson by the improved Bethe-Salpeter (BS) method. Using the relativistic BS equation and the Mandelstam formalism, we calculate the corresponding decay form factors. The predictions of the corresponding branching ratios are: Br (Bc + → X (3940) e+ne) = 1.0 × 10-4 and Br (Bc + → X (4160) e+ne) = 2.4 × 10-5. This will provide a new way to observe X(3940) and X(4160) in the future, as well as to improve the knowledge of B c meson decay.

Original languageEnglish
Article number105002
JournalJournal of Physics G: Nuclear and Particle Physics
Volume43
Issue number10
DOIs
StatePublished - 23 Aug 2016

Keywords

  • B meson
  • Bethe-Salpeter method
  • X(3940)
  • X(4160)
  • weak decay

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