A. le Yaouanc

activity

20242026

collaborators

4 papers

hep-ex2026

Influence of the KK graviton decay into hh on the triple Higgs measurement at LHC

Alain Le Yaouanc, François Richard

Evidence for two KK graviton candidates has been previously reported at 380 GeV and 700 GeV. Following a Randall Sundrum interpretation, two extra resonances should appear at 1000…

hep-ph2025

Evidence for BSM spin 0 and spin 2 resonances at LHC Possible Interpretations

Alain Le Yaouanc, François Richard

Nine statistically significant decay channels are observed in LHC data around a mass of 650 GeV. We interpret three of them as coming from a 20 GeV wide resonance observed in e+e-,…

hep-ph2024

X650 $\to$ ZZ/WW/H125H95/A450Z/ $γ γ$ -- $J = 1$ , $J = 2$ , narrow or wide resonance?

Alain Le Yaouanc, François Richard

At ICHEP 2024 CMS has published RUN2 results for ZZ->4 leptons and reached the conclusion that there is no evidence for a scalar resonance H650 decaying into ZZ, as was also conclu…

hep-ph2024

The $a_{1}$ factorisation coefficient in $B^{0} \to D^{() +} M^{-}$ and $B^{0} \to D^{() +} D_{s}^{(*) -}$ decays: measurements versus theory

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

Using recent measurements of exclusive B-meson decays we extract the $a_{1}$ factorization parameter in $B_{d}^{0} \to D^{(*)^{+}} K^{-} / π^{-}$ decay channels. { The values ob…

Influence of the KK graviton decay into hh on the triple Higgs measurement at LHC

Evidence for BSM spin 0 and spin 2 resonances at LHC Possible Interpretations

X650 → ZZ/WW/H125H95/A450Z/γγ -- J=1, J=2, narrow or wide resonance?

The a1​ factorisation coefficient in B0→D(∗)+M− and B0→D(∗)+Ds(∗)−​ decays: measurements versus theory

X650 $\to$ ZZ/WW/H125H95/A450Z/ $γ γ$ -- $J = 1$ , $J = 2$ , narrow or wide resonance?

The $a_{1}$ factorisation coefficient in $B^{0} \to D^{() +} M^{-}$ and $B^{0} \to D^{() +} D_{s}^{(*) -}$ decays: measurements versus theory