R. Frezzotti

activity

19942026

most citedChirally improving Wilson fermions - I. O(a) improvement

404 citations · 5.5k across the 151 of their papers we have counts for

collaborators

157 papers

hep-lat2026

Inclusive $B ˉ_{s} \mapsto X_{s ˉ c} ℓ ν ˉ$ decays from lattice QCD: computational strategy and a first physical result

Alessandro De Santis, Antonio Evangelista, Gael Finauri +16

We present a strategy to compute the inclusive decay rate for the process $B ˉ_{s} \mapsto X_{s ˉ c} ℓ ν ˉ$ from first principles in lattice QCD. The physical decay rate is…

hep-lat2026

Performance of Low Mode Averaging on Twisted-Mass Fermion Ensembles at the physical pion mass point

Constantia Alexandrou, Simone Bacchio, Antonio Evangelista +4

We study the performance of low-mode averaging (LMA) on twisted-mass fermion ensembles at near-physical quark masses, assessing both its theoretical framework and practical cost-ef…

hep-lat2026

Complete lattice QCD calculation of $K^{-} \to ℓ^{-} ν ˉ_{ℓ} ℓ^{^{'} +} ℓ^{^{'} -}$ form factors

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

We present the first complete lattice QCD calculation of the four structure-dependent form factors governing the rare charged kaon decay $K^{-} \to ℓ^{-} ν ˉ_{ℓ} ℓ^{' +} ℓ^{' -}$ …

hep-ph2026

Rare kaon decays $K^{-} \to ℓ^{-} ν ˉ_{ℓ} ℓ^{' +} ℓ^{' -}$ : Standard Model predictions from lattice QCD

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

Weak decays of charged kaons with an additional lepton-antilepton pair, $K^{-} \to ℓ^{-} ν ˉ_{ℓ} ℓ^{' +} ℓ^{' -}$ ( $K_{ℓ 2 ℓ^{'}}$ ), are suppressed at order $O(G_{F}^{2}α_{\…

hep-lat2026

First-principle evaluation of inclusive hadronic $τ$ decays in QCD+QED

Matteo Di Carlo, Simone Bacchio, Erik Bäske +12

We present a strategy to extend lattice calculations of inclusive hadronic $τ$ decays from isosymmetric QCD to QCD+QED. The inclusive decay rate can be related to suitable Euclidea…

hep-lat2026

The smeared $R$ -ratio in isoQCD from first-principles lattice simulations

Francesca Margari, Simone Bacchio, Alessandro De Santis +6

The $R$ -ratio is a phenomenological observable of great relevance, both in itself and in applications such as the dispersive approach to the muon anomalous magnetic moment. It can…

Inclusive Bˉs​↦Xsˉc​ℓνˉ decays from lattice QCD: computational strategy and a first physical result

Performance of Low Mode Averaging on Twisted-Mass Fermion Ensembles at the physical pion mass point

Complete lattice QCD calculation of K−→ℓ−νˉℓ​ℓ′+ℓ′− form factors

Rare kaon decays K−→ℓ−νˉℓ​ℓ′+ℓ′−: Standard Model predictions from lattice QCD

First-principle evaluation of inclusive hadronic τ decays in QCD+QED

The smeared R-ratio in isoQCD from first-principles lattice simulations

Inclusive $B ˉ_{s} \mapsto X_{s ˉ c} ℓ ν ˉ$ decays from lattice QCD: computational strategy and a first physical result

Complete lattice QCD calculation of $K^{-} \to ℓ^{-} ν ˉ_{ℓ} ℓ^{^{'} +} ℓ^{^{'} -}$ form factors

Rare kaon decays $K^{-} \to ℓ^{-} ν ˉ_{ℓ} ℓ^{' +} ℓ^{' -}$ : Standard Model predictions from lattice QCD

First-principle evaluation of inclusive hadronic $τ$ decays in QCD+QED

The smeared $R$ -ratio in isoQCD from first-principles lattice simulations