P. Roudeau

activity

19972021

most citedEvidence for an excess of B -> D(*) Tau Nu decays

857 citations · 16.2k across the 283 of their papers we have counts for

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22 papers · 1 filter

hep-ph2021

A model for NL and SL decays by $B^{0} \to D^{**}$ transitions with $B R (j = 1/2) ≪ B R (j = 3/2)$ using the $LL S W$ scheme

Alain Le Yaouanc, Jean-Pierre Leroy, Patrick Roudeau

We present a model for the vector and axial form factors of the transitions $B^{0} \to D^{**}$ in good agreement with the presently available data and based on the present…

hep-ph2018★ 8 cited

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…

hep-ph2014

Insight into $D / B \to π ℓ ν_{ℓ}$ 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 $f_{+}^{D π} (q^{2})$ is not saturated when compared with the experimental…

hep-ph2012★ 20 cited

Proposal to study $B_{s} \to D ˉ_{s J}$ transitions

Damir Becirevic, Alain Le Yaouanc, Luis Oliver +3

It is proposed to clear some of the puzzles of B decay to the broad $D ˉ^{**}$ states by studying the corresponding decay with strange states $B_s^0 \to D_{s0}^{\ast -} π…

hep-ph2007★ 49 cited

Memorino on the `1/2 vs. 3/2 Puzzle' in $B ˉ \to l ν ˉ X_{c}$ -- a Year Later and a Bit Wiser

I. I. Bigi, B. Blossier, A. Le Yaouanc +5

The OPE treatment that has been so successful in describing inclusive $B ˉ \to l ν ˉ X_{c}$ decays yields sum rules (in particular the Uraltsev sum rule and its higher moments)…

hep-ph2007★ 521 cited

Model-independent constraints on Delta F=2 operators and the scale of New Physics

UTfit Collaboration, M. Bona, M. Ciuchini +11

We update the constraints on new-physics contributions to Delta F=2 processes from the generalized unitarity triangle analysis, including the most recent experimental developments.…

A model for NL and SL decays by B0→D∗∗ transitions with BR(j=1/2)≪BR(j=3/2) using the LLSW scheme

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

Insight into D/B→πℓνℓ​ decay using the pole models

Proposal to study Bs​→DˉsJ​ transitions