G. Gagliardi

activity

20242026

collaborators

7 papers

hep-lat2026

Theoretical framework for lattice QCD computations of $B \to K ℓ^{+} ℓ^{-}$ and $B ˉ_{s} \to ℓ^{+} ℓ^{-} I^^{3}$ decays rates, including contributions from charming penguin diagrams

R. Frezzotti, G. Gagliardi, V. Lubicz +6

We develop a strategy for computing the $B \to K ℓ^{+} ℓ^{-}$ and $B ˉ_{s} \to I^^{3} ℓ^{+} ℓ^{-}$ decay amplitudes using lattice QCD (where $ℓ^{\pm}$ are charged leptons). We focus on…

hep-ph2025

The anomalous magnetic moment of the muon in the Standard Model: an update

R. Aliberti, T. Aoyama, E. Balzani +232

We present the current Standard Model (SM) prediction for the muon anomalous magnetic moment, $a_{I^} ¼$ , updating the first White Paper (WP20) [1]. The pure QED and electroweak contri…

hep-lat2025

Kaon radiative leptonic decay rates from lattice QCD simulations at the physical point

R. Di Palma, R. Frezzotti, G. Gagliardi +6

We present a lattice QCD calculation of the radiative leptonic decay rates of the kaon, improving upon our previous work, arXiv:2006.05358. Our analysis uses gauge ensembles genera…

hep-lat2025

Lattice QCD determination of the radiative decay rates $h_{c} \to I^\cdot_{c} I^^{3}$ and $h_{b} \to I^\cdot_{b} I^^{3}$

D. BeÄireviÄ, R. Di Palma, R. Frezzotti +4

We present the results of our lattice QCD computation of the hadronic matrix elements relevant to the $h_{c} \to I^\cdot_{c} I^^{3}$ and $h_{b} \to I^\cdot_{b} I^^{3}$ decays by using the gauge configur…

hep-lat2024

Strange and charm quark contributions to the muon anomalous magnetic moment in lattice QCD with twisted-mass fermions

C. Alexandrou, S. Bacchio, A. De Santis +15

We present a lattice calculation of the Hadronic Vacuum Polarization (HVP) contribution of the strange and charm quarks to the anomalous magnetic moment of the muon in isospin symm…

hep-lat2024

Inclusive hadronic decay rate of the $I ¨ $ lepton from lattice QCD: the $u ˉ s$ flavour channel and the Cabibbo angle

C. Alexandrou, S. Bacchio, A. De Santis +13

We present a lattice determination of the inclusive decay rate of the process $I ¨ \mapsto X_{u s} I^½_{I ¨} $ in which the $I ¨ $ lepton decays into a generic hadronic state $X_{u s}$ with $…

Theoretical framework for lattice QCD computations of B→Kℓ+ℓ− and Bˉs​→ℓ+ℓ−I^3 decays rates, including contributions from charming penguin diagrams