Giuseppe Gagliardi

activity

20162026

most citedHigher order quark number fluctuations via imaginary chemical potentials in

N_{f} = 2 + 1

QCD

101 citations · 144 across the 19 of their papers we have counts for

collaborators

22 papers

hep-lat2026

The hadronic-vacuum-polarization contribution to the muon anomalous magnetic moment in isospin-symmetric lattice QCD with twisted-mass fermions

C. Alexandrou, S. Bacchio, A. De Santis +18

We present a lattice-QCD calculation of the leading-order hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon in isospin-symmetric QCD. We…

hep-ph2026

The Semileptonic B Frontier: LHC, B-factories, Lattice QCD & the Hunt for Precision

F. De Fazio, P. De Simone, M. Fedele +33

This review document summarizes the main outcomes and key theoretical and experimental developments discussed at the workshop ``The Semileptonic $B$ Frontier: LHC, $B$ -Factories, L…

hep-lat2026

Real-time topological rate at non-zero momentum in quenched QCD

Claudio Bonanno, Massimo D'Elia, Roberto Dionisio +5

We present a proof-of-concept numerical study of the real-time topological rate at non-zero momentum in quenched lattice QCD at a temperature $T ≃ 1.24 T_{c} ≃ 360$ MeV,…

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

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…

hep-lat2026

An update on the HVP contribution to $g_{μ} - 2$ in isoQCD from ETMC

Simone Bacchio, Alessandro De Santis, Antonio Evangelista +7

We present an update on the determination of the leading-order hadronic vacuum polarisation contribution to the muon anomalous magnetic moment in isospin-symmetric QCD by the Exten…

hep-lat2025

Lattice determination of the QCD low-energy constant $ℓ_{7}$

Claudio Bonanno, Gilberto Colangelo, Francesco D'Angelo +8

We provide a non-perturbative determination of the scheme- and scale-independent low-energy constant $ℓ_{7}$ , appearing in the QCD effective chiral Lagrangia…

hep-lat2025

Lattice QCD study of the $χ_{c 1} \to J / ψ γ$ decay

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

We present the results of our lattice QCD computation of the electric ( $E_{1}$ ) and magnetic $(M_{2})$ form factors relevant to the $χ_{c 1} \to J / ψ γ$ decay by using the gauge fiel…

hep-lat2025

Inclusive semileptonic decays of the $D_{s}$ meson: Lattice QCD confronts experiments

Alessandro De Santis, Antonio Evangelista, Roberto Frezzotti +13

We present the results of a first-principles theoretical study of the inclusive semileptonic decays of the $D_{s}$ meson. We performed a state-of-the-art lattice QCD calculation by…

hep-lat2025

Inclusive semileptonic decays of the $D_{s}$ meson: A first-principles lattice QCD calculation

Alessandro De Santis, Antonio Evangelista, Roberto Frezzotti +13

We present the results of a first-principles theoretical study of the inclusive semileptonic decays of the $D_{s}$ meson. We performed a state-of-the-art lattice QCD calculation usin…

hep-lat2025

Smeared $R$ -ratio in isospin symmetric QCD with Low Mode Averaging

Simone Bacchio, Alessandro De Santis, Antonio Evangelista +8

Low Mode Average (LMA) is a technique to improve the quality of the signal-to-noise ratio in the long time separation of Euclidean correlation functions. We report on its beneficia…

hep-lat2025

Valence leading isospin breaking contributions to $a_{μ}^{HVP - LO}$

Simone Bacchio, Antonio Evangelista, Roberto Frezzotti +6

By employing the RM123 approach to QCD+QED, we computed the valence quark-connected isospin-breaking corrections to the light, strange and charm contributions at leading order in $…

hep-lat2023

Inclusive hadronic decay rate of the $τ$ lepton from lattice QCD

Antonio Evangelista, Roberto Frezzotti, Giuseppe Gagliardi +4

Inclusive hadronic decays of the $τ$ lepton are very interesting from the phenomenological point of view since they give access to the CKM matrix elements $V_{u d}$ and $V_{u s}$ . In…

hep-lat2023

Direct lattice calculation of inclusive hadronic decay rates of the $τ$ lepton

Antonio Evangelista, Roberto Frezzotti, Giuseppe Gagliardi +4

The inclusive hadronic decay-rates of the $τ$ lepton are particularly interesting from the phenomenological point of view since they give access to the CKM matrix elements $V_{u d}$ …

hep-lat2022

Lattice calculation of the R-ratio smeared with Gaussian kernel

Constantia Alexandrou, Simone Bacchio, Alessandro De Santis +15

The ratio $R (E)$ of the cross-sections for $e^{+} e^{-} \to$ hadrons and $e^{+} e^{-} \to μ^{+} μ^{-}$ is a valuable energy-dependent probe of the hadronic sector of the Standard Model. Moreover, t…

hep-ph2022

Short \& intermediate distance HVP contributions to muon g-2: SM (lattice) prediction versus $e^{+} e^{-}$ annihilation data

Constantia Alexandrou, Simone Bacchio, Petros Dimopoulos +13

We present new lattice results of the ETM Collaboration, obtained from extensive simulations of lattice QCD with dynamical up, down, strange and charm quarks at physical mass value…

hep-lat2022★ 1 cited

Disconnected contribution to the LO HVP term of muon g-2 from ETMC

Constantia Alexandrou, Simone Bacchio, Petros Dimopoulos +13

We present a lattice determination of the disconnected contributions to the leading-order hadronic vacuum polarization (HVP) to the muon anomalous magnetic moment in the so-called…

hep-lat2022★ 42 cited

Probing the energy-smeared R-ratio on the lattice

Constantia Alexandrou, Simone Bacchio, Alessandro De Santis +15

We present a first-principles lattice QCD investigation of the $R$ -ratio between the $e^{+} e^{-}$ cross-section into hadrons and that into muons. By using the method of Ref.[1], that a…

hep-lat2022

Virtual Photon Emission in Leptonic Decays of Pseudoscalar Mesons

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

We present a preliminary non-perturbative lattice calculation of the form factors entering the processes $K \to ℓ ν_{ℓ} ℓ^{' +} ℓ^{' -}$ and of the corresponding branching ra…

hep-lat2021

Lattice determination of the pion mass difference $M_{π^{+}} - M_{π^{0}}$ at order $O (α_{e m})$ and $O ((m_{d} - m_{u})^{2})$ including disconnected diagrams

R. Frezzotti, G. Gagliardi, V. Lubicz +3

We present our preliminary results concerning the charged/neutral pion mass difference $M_{π^{+}} - M_{π^{0}}$ at order $O (α_{e m})$ in the QED interactions, and for $M_{π…

hep-lat2016★ 101 cited

Higher order quark number fluctuations via imaginary chemical potentials in $N_{f} = 2 + 1$ QCD

Massimo D'Elia, Giuseppe Gagliardi, Francesco Sanfilippo

We discuss analytic continuation as a tool to extract the cumulants of the quark number fluctuations in the strongly interacting medium from lattice QCD simulations at imaginary ch…

The hadronic-vacuum-polarization contribution to the muon anomalous magnetic moment in isospin-symmetric lattice QCD with twisted-mass fermions

The Semileptonic B Frontier: LHC, B-factories, Lattice QCD & the Hunt for Precision

Real-time topological rate at non-zero momentum in quenched QCD

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

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

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

An update on the HVP contribution to gμ​−2 in isoQCD from ETMC

Lattice determination of the QCD low-energy constant ℓ7​

Lattice QCD study of the χc1​→J/ψγ decay

Inclusive semileptonic decays of the Ds​ meson: Lattice QCD confronts experiments

Inclusive semileptonic decays of the Ds​ meson: A first-principles lattice QCD calculation

Smeared R-ratio in isospin symmetric QCD with Low Mode Averaging

Valence leading isospin breaking contributions to aμHVP−LO​

Inclusive hadronic decay rate of the τ lepton from lattice QCD

Direct lattice calculation of inclusive hadronic decay rates of the τ lepton

Lattice calculation of the R-ratio smeared with Gaussian kernel

Short \& intermediate distance HVP contributions to muon g-2: SM (lattice) prediction versus e+e− annihilation data

Disconnected contribution to the LO HVP term of muon g-2 from ETMC

Probing the energy-smeared R-ratio on the lattice

Virtual Photon Emission in Leptonic Decays of Pseudoscalar Mesons

Lattice determination of the pion mass difference Mπ+​−Mπ0​ at order O(αem​) and O((md​−mu​)2) including disconnected diagrams

Higher order quark number fluctuations via imaginary chemical potentials in Nf​=2+1 QCD

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

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

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

An update on the HVP contribution to $g_{μ} - 2$ in isoQCD from ETMC

Lattice determination of the QCD low-energy constant $ℓ_{7}$

Lattice QCD study of the $χ_{c 1} \to J / ψ γ$ decay

Inclusive semileptonic decays of the $D_{s}$ meson: Lattice QCD confronts experiments

Inclusive semileptonic decays of the $D_{s}$ meson: A first-principles lattice QCD calculation

Smeared $R$ -ratio in isospin symmetric QCD with Low Mode Averaging

Valence leading isospin breaking contributions to $a_{μ}^{HVP - LO}$

Inclusive hadronic decay rate of the $τ$ lepton from lattice QCD

Direct lattice calculation of inclusive hadronic decay rates of the $τ$ lepton

Short \& intermediate distance HVP contributions to muon g-2: SM (lattice) prediction versus $e^{+} e^{-}$ annihilation data

Lattice determination of the pion mass difference $M_{π^{+}} - M_{π^{0}}$ at order $O (α_{e m})$ and $O ((m_{d} - m_{u})^{2})$ including disconnected diagrams

Higher order quark number fluctuations via imaginary chemical potentials in $N_{f} = 2 + 1$ QCD