Published January 1, 2015 | Version v1
Journal article Open

Semileptonic B -> (D)over-bar transition in a nuclear medium

  • 1. Dogus Univ, Dept Phys, TR-34722 Istanbul, Turkey
  • 2. Abant Izzet Baysal Univ, Dept Phys, TR-14980 Bolu, Turkey
  • 3. Kocaeli Univ, Dept Phys, TR-41380 Izmit, Turkey

Description

We study the semileptonic tree-level B -> (D) over bar transition in the framework of QCD sum rules in a nuclear medium. In particular, we calculate the in-medium form factors entering the transition matrix elements defining this decay channel. It is found that the interactions of the participating particles with the medium lead to a considerable suppression in the branching ratio compared to the vacuum.

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