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In Memoriam Nikolai Uraltsev : Uraltsev's and other Sum Rules, Theory and Phenomenology of 's
Alain Le Yaouanc, Olivier Pene
We first discuss Uraltsev's and other sum rules constraining the weak transitions in the infinite mass limit, and compare them with dynamical approaches in the…
Finite mass corrections for B -> D(*), D** \ell νdecays in the Bakamjian-Thomas relativistic quark model
A. Le Yaouanc, L. Oliver, J. -C. Raynal
The Bakamjian-Thomas relativistic quark model for hadron current matrix elements, while non-covariant at finite mass, is successful in the heavy quark limit : form factors are cova…
Insight into decay using the pole models
Damir Becirevic, Alain Le Yaouanc, Arantza Oyanguren +2
After improving the knowledge about residua of the semileptonic form factor at its first two poles we show that is not saturated when compared with the experimental…
Isgur-Wise functions and unitary representations of the Lorentz group : the meson case j = 1/2
A. Le Yaouanc, L. Oliver, J. -C. Raynal
We pursue the group theoretical method to study Isgur-Wise functions. We apply the general formalism, formerly applied to the baryon case j^P = 0^+ (for Λ_b -> Λ_c \ell ν), to meso…