N. Gubernari

activity

20182020

collaborators

3 papers

hep-ph2020

A puzzle in $B ˉ_{(s)}^{0} \to D_{(s)}^{(*) +} {π^{-}, K^{-}}$ decays and extraction of the $f_{s} / f_{d}$ fragmentation fraction

Marzia Bordone, Nico Gubernari, Tobias Huber +2

We provide updated predictions for the hadronic decays $B ˉ_{s}^{0} \to D_{s}^{(*) +} π^{-}$ and $B ˉ^{0} \to D^{(*) +} K^{-}$ . They are based on $O (α_{s}^{2})$ results for the QCD f…

hep-ph2019

Heavy-Quark Expansion for $B ˉ_{s} \to D_{s}^{(*)}$ Form Factors and Unitarity Bounds beyond the $S U (3)_{F}$ Limit

Marzia Bordone, Nico Gubernari, Martin Jung +1

We carry out a comprehensive analysis of the full set of $B ˉ_{q} \to D_{q}^{(*)}$ form factors for spectator quarks $q = u, d, s$ within the framework of the Heavy-Quark Expansion (HQ…

hep-ph2018

$B \to P$ and $B \to V$ Form Factors from $B$ -Meson Light-Cone Sum Rules beyond Leading Twist

Nico Gubernari, Ahmet Kokulu, Danny van Dyk

We provide results for the full set of form factors describing semileptonic $B$ -meson transitions to pseudoscalar mesons $π$ , $K$ , $D ˉ$ and vector mesons $ρ$ , $K^{*}$ , $\bar{D}^…

A puzzle in Bˉ(s)0​→D(s)(∗)+​{π−,K−} decays and extraction of the fs​/fd​ fragmentation fraction

Heavy-Quark Expansion for Bˉs​→Ds(∗)​ Form Factors and Unitarity Bounds beyond the SU(3)F​ Limit

B→P and B→V Form Factors from B-Meson Light-Cone Sum Rules beyond Leading Twist

A puzzle in $B ˉ_{(s)}^{0} \to D_{(s)}^{(*) +} {π^{-}, K^{-}}$ decays and extraction of the $f_{s} / f_{d}$ fragmentation fraction

Heavy-Quark Expansion for $B ˉ_{s} \to D_{s}^{(*)}$ Form Factors and Unitarity Bounds beyond the $S U (3)_{F}$ Limit

$B \to P$ and $B \to V$ Form Factors from $B$ -Meson Light-Cone Sum Rules beyond Leading Twist