Semileptonic $B\to \bar{D}$ transition in nuclear medium

Abstract

We study the semileptonic tree-level $B\to \bar{D}$ transition in the framework of QCD sum rules in 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.

arXiv comment12 Pages, 3 Figures and 5 Tables

References in corpus (16)

• Evidence for an excess of B -> D(*) Tau Nu decays
• On the B to D* tau nu Sensitivity to New Physics
• Implications of lepton flavor universality violations in B decays
• Explaining B->Dτν, B->D*τνand B->τνin a 2HDM of type III
• New physics in the weak interaction of $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$
• Sensitivity to charged scalars in $B\to D^{(\ast )}\tau {\nu }_{\tau }$ and $B\to \tau {\nu }_{\tau }$ decays
• QCD Sum Rules and Applications to Nuclear Physics
• Mass modification of D-meson at finite density in QCD sum rule
• Diagnosing New Physics in $b\to c\tau {\nu }_{\tau }$ decays in the light of the recent BaBar result
• On the anomalous enhancement observed in $B\to D^{(\ast )}\tau {\bar{\nu }}_{\tau }$ decays
• QCD sum rules for D and B mesons in nuclear matter
• In-medium mass modifications of the $D_0$ and $B_0$ mesons with the QCD sum rules
• More about the $B$ and $D$ mesons in nuclear matter
• B decay anomalies in an effective theory
• In-Medium Modifications of Scalar Charm Mesons in Nuclear Matter
• Hadron Spectroscopy at PANDA