A. Le-Yaouanc

collaborators

2 papers

hep-ph2019

Simple operator formulation of the Bakamjian-Thomas approach to heavy quark current , with generalisation to HQET, and with applications to transitions of Lambda-b

Damir Becirevic, Vincent Morenas, Alain Le-Yaouanc +1

Starting from the general formulation of current matrix elements in the Bakamjian-Thomas (BT) approach to quark models, certain aspects of their heavy quark limit are exhibited in…

hep-ph2018

Large off-shell effects in the $D ˉ^{*}$ contribution to $B \to D ˉ π π$ and $B \to D ˉ π ℓ ˉ ν_{ℓ}$ decays.}}

A. Le-Yaouanc, J. -P. Leroy, P. Roudeau

We stress that, although the $D^{*}$ is very narrow (one hundred of keV), the difference between the full $D^{*}$ contribution to $B \to D ˉ π π$ and its zero width limit, which ste…

Simple operator formulation of the Bakamjian-Thomas approach to heavy quark current , with generalisation to HQET, and with applications to transitions of Lambda-b

Large off-shell effects in the Dˉ∗ contribution to B→Dˉππ and B→Dˉπℓˉνℓ​ decays.}}

Large off-shell effects in the $D ˉ^{*}$ contribution to $B \to D ˉ π π$ and $B \to D ˉ π ℓ ˉ ν_{ℓ}$ decays.}}