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Theoretical Particle Physics

Publications

Form factors for semileptonic, nonleptonic and rare B(Bs) meson decays

Publicaciones

Form factors for semileptonic, nonleptonic and rare B(Bs) meson decays

Research areas:

Física Teórica de Partículas

Year:

2012

Type of Publication:

In Proceeding

Authors:

  • Mikhail A. Ivanov
  • Jurgen G. Korner
  • Sergey Kovalenko
  • Pietro Santorelli
  • G. Saidullaeva

Journal:

Phys.Rev.

Volume:

D85

Pages:

15

Abstract:

We provide new values for the model parameters of the covariant constituent quark model (with built--in infrared confinement) in the meson sector by a fit to the leptonic decay constants and a number of electromagnetic decays. We then evaluate, in a parameter free way, the form factors of the B(Bs)→P(V)-transitions in the full kinematical region of momentum transfer. As an application of our results we calculate the widths of the nonleptonic Bs-decays into D−sD+s, D∗−sD+s+D−sD∗+s and D∗−sD∗+s. These modes give the largest contribution to ΔΓ for the Bs−Bˉs system. We also treat the nonleptonic decay Bs→\Jpsiϕ. Although this mode is color suppressed this decay has important implications for the search of possible CP-violating New Physics effects in Bs−Bˉs mixing.

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