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Publications (210)

hep-ph1998

Right-handed currents in rare exclusive B -> (K, K*) nu bar{nu} decays

D. Melikhov, N. Nikitin, S. Simula

The effects of possible right-handed weak hadronic currents in rare exclusive semileptonic decays B -> (K, K*) nu bar{nu} are investigated using a lattice-constrained dispersion qu…

nucl-th1997

The nucleon Drell-Hearn-Gerasimov sum rule within a relativistic constituent quark model

F. Cardarelli, B. Pasquini, S. Simula

The Drell-Hearn-Gerasimov sum rule for the nucleon is investigated within a relativistic constituent quark model formulated on the light-front. The contribution of the N - Delta(12…

hep-lat2007

Renormalisation of quark bilinears with Nf=2 Wilson fermions and tree-level improved gauge action

P. Dimopoulos, R. Frezzotti, G. Herdoiza +4

We present results for the renormalisation constants of bilinear quark operators, using the Nf=2 twisted mass Wilson action at maximal twist (which guarantees automatic O(a) improv…

hep-lat2023

Lattice calculation of the $D_{s}$ meson radiative form factors over the full kinematical range

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

We compute the structure-dependent axial and vector form factors for the radiative leptonic decays $D_{s} \to ℓ I^½_{ℓ} I^^{3}$ , where $ℓ$ is a charged lepton, as functions of the ene…

hep-lat2006

Lattice study of semileptonic form factors with twisted boundary conditions

D. Guadagnoli, F. Mescia, S. Simula

We apply twisted boundary conditions to lattice QCD simulations of three-point correlation functions in order to access spatial components of hadronic momenta different from the in…

hep-ph2002

Leading and higher twists in the proton polarised structure function g1p at large Bjorken-x

S. Simula, M. Osipenko, G. Ricco +1

Power corrections to the Q**2 behavior of the Nachtmann moments of the proton polarized structure function g1p are investigated at large Bjorken-x by developing a phenomenological…

hep-lat2013

Pseudoscalar decay constants $f_{K} / f_{I ¨} $ , $f_{D}$ and $f_{D_{s}}$ with $N_{f} = 2 + 1 + 1$ ETMC configurations

P. Dimopoulos, R. Frezzotti, P. Lami +7

We present a lattice QCD calculation of the pseudoscalar decay constants $f_{K}$ , $f_{D}$ and $f_{D_{s}}$ performed by the European Twisted Mass Collaboration with $N_{f} = 2 + 1 + 1$ dyna…

hep-lat2012

Neutral meson oscillations in the Standard Model and beyond from Nf=2 Twisted Mass Lattice QCD

N. Carrasco, P. Dimopoulos, R. Frezzotti +11

We present the ETMC results for the bag parameters describing the neutral kaon mixing in the Standard Model and beyond and preliminary results for the bag parameters controlling th…

hep-ph1997

Isgur-Wise form factors of heavy baryons within a light-front constituent quark model

F. Cardarelli, S. Simula

The space-like elastic form factors of baryons containing a heavy quark are investigated within a light-front constituent quark model in the limit of infinite heavy-quark mass, ado…

hep-lat2014

K -> pi matrix elements of the chromagnetic operator on the lattice

M. Constantinou, M. Costa, R. Frezzotti +5

We present preliminary results of the first lattice QCD calculation of the K -> pi matrix elements of the chromomagnetic operator O_{CM}=g sbar sigma_{munu} G_{munu} d, which appea…

hep-lat2005

Non-perturbatively Renormalized Light Quark Masses with Two Dynamical Fermions

D. Becirevic, B. Blossier, Ph. Boucaud +5

We present the results of a partially quenched lattice QCD calculation of light quark masses with $N_{f} = 2$ degenerate dynamical flavors. Numerical simulations are carried out using…

hep-lat2017

First lattice calculation of the QED corrections to leptonic decay rates

D. Giusti, V. Lubicz, G. Martinelli +5

The leading-order electromagnetic and strong isospin-breaking corrections to the ratio of $K_{I^¼2}$ and $I ¨ _{I^¼2}$ decay rates are evaluated for the first time on the lattice, foll…

hep-ph2022

Exclusive determinations of $∣ V_{c b} ∣$ and $R (D^{*})$ through unitarity

G. Martinelli, S. Simula, L. Vittorio

In this work we apply the Dispersive Matrix (DM) method of Refs. [1,2] to the lattice computations of the Form Factors (FFs) entering the semileptonic $B \to D^{*} ℓ I^½_{ℓ}$ deca…

hep-lat2010

Improved analysis of the scalar and vector form factors of kaon semileptonic decays with N_f = 2 twisted-mass fermions

V. Lubicz, F. Mescia, L. Orifici +2

We investigate the vector and scalar form factors relevant for K_{\ell 3} semileptonic decays using maximally twisted-mass fermions with two flavors of dynamical quarks (N_f = 2).…

hep-lat2021

Quark masses using twisted mass fermion gauge ensembles

C. Alexandrou, S. Bacchio, G. Bergner +24

We present a calculation of the up, down, strange and charm quark masses performed within the lattice QCD framework. We use the twisted mass fermion action and carry out simulation…

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-lat2012

Lattice QCD determination of m_b, f_B and f_Bs with twisted mass Wilson fermions

ETM Collaboration, P. Dimopoulos, R. Frezzotti +10

We present a lattice QCD determination of the b quark mass and of the B and B_s decay constants, performed with N_f=2 twisted mass Wilson fermions, by simulating at four values of…

hep-ph2003

A Kinematically Complete Measurement of the Proton Structure Function F2 in the Resonance Region and Evaluation of Its Moments

M. Osipenko, G. Ricco, M. Taiuti +3

We measured the inclusive electron-proton cross section in the nucleon resonance region (W < 2.5 GeV) at momentum transfers Q**2 below 4.5 (GeV/c)**2 with the CLAS detector. The la…

hep-ex2006

Measurement of the Deuteron Structure Function F2 in the Resonance Region and Evaluation of Its Moments

M. Osipenko, G. Ricco, S. Simula +3

Inclusive electron scattering off the deuteron has been measured to extract the deuteron structure function F2 with the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jef…

hep-lat2009

Vector and scalar form factors for K- and D-meson semileptonic decays from twisted mass fermions with Nf = 2

S. Di Vita, B. Haas, F. Mescia +3

We present lattice results for the form factors relevant in the K -> pion and D -> pion semileptonic decays, obtained from simulations with two flavors of dynamical twisted-mass fe…

hep-lat2018

The light-quark contribution to the leading HVP term of the muon $g - 2$ from twisted-mass fermions

D. Giusti, F. Sanfilippo, S. Simula

We present a lattice calculation of the leading Hadronic Vacuum Polarization (HVP) contribution of the light u- and d-quarks to the anomalous magnetic moment of the muon, $a_Î¼^{\r…

hep-lat2018

Masses and decay constants of $B_{c}^{(*)}$ mesons with $N_{f} = 2 + 1 + 1$ twisted mass fermions

D. Becirevic, A. Melis, L. Riggio +2

We present a preliminary lattice determination of the masses and decay constants of the pseudoscalar and vector mesons $B_{c}$ and $B_{c}^{*}$ . Our analysis is based on the gauge configu…

hep-lat2011

Matrix elements of the electromagnetic operator between kaon and pion states

I. Baum, V. Lubicz, G. Martinelli +2

We compute the matrix elements of the electromagnetic (EM) operator (\bar{s} F{Î¼Î½} Ï{Î¼Î½} d) between kaon and pion states, using lattice QCD with maximally twisted-mass fermion…

hep-ph2004

The Neutron Electric Dipole Moment in the Instanton Vacuum: Quenched Versus Unquenched Simulations

P. Faccioli, D. Guadagnoli, S. Simula

We investigate the role played by the fermionic determinant in the evaluation of the CP-violating neutron electric dipole moment (EDM) adopting the Instanton Liquid Model. Signific…

hep-lat2017

HVP contributions to the muon ( $g - 2$ ) including QED corrections with twisted-mass fermions

D. Giusti, V. Lubicz, G. Martinelli +2

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 including leadi…

hep-lat2011

Average up/down, strange and charm quark masses with Nf=2 twisted mass lattice QCD

ETM Collaboration, B. Blossier, P. Dimopoulos +6

We present a high precision lattice calculation of the average up/down, strange and charm quark masses performed with Nf=2 twisted mass Wilson fermions. The analysis includes data…

hep-lat2019

Lepton anomalous magnetic moments in Lattice QCD+QED

D. Giusti, S. Simula

We present a lattice calculation of the Hadronic Vacuum Polarization (HVP) contribution to the anomalous magnetic moments of the electron, $a_{e}^{HVP}$ , the muon, $a_Î¼^{\rm HVP…

hep-ph2006

First Lattice QCD Study of the Sigma -> n Axial and Vector Form Factors with SU(3) Breaking Corrections

D. Guadagnoli, V. Lubicz, M. Papinutto +1

We present the first quenched lattice QCD study of the form factors relevant for the hyperon semileptonic decay Sigma -> n l nu. The momentum dependence of both axial and vector fo…

hep-ph2002

Electromagnetic form factors in the light-front formalism and the Feynman triangle diagram: spin-0 and spin-1 two-fermion systems

D. Melikhov, S. Simula

The connection between the Feynman triangle diagram and the light-front formalism for spin-0 and spin-1 two-fermion systems is analyzed. It is shown that in the limit q+ = 0 the fo…

hep-lat2022

Time windows of the muon HVP from twisted-mass lattice QCD

C. Alexandrou, S. Bacchio, P. Dimopoulos +13

We present a lattice determination of the leading-order hadronic vacuum polarization (HVP) contribution to the muon anomalous magnetic moment, $a_{I^} ¼^{HVP}$ , in the so-called sh…

hep-ph2024

Updates on the determination of $∣ V_{c b} ∣$ , $R (D^{*})$ and $∣ V_{u b} ∣/∣ V_{c b} ∣$

G. Martinelli, S. Simula, L. Vittorio

We present an updated determination of the values of $∣ V_{c b} ∣$ , $R (D^{*})$ and $∣ V_{u b} ∣/∣ V_{c b} ∣$ based on the new data on semileptonic $B \to D^* \el…

hep-lat2012

Isospin breaking effects due to the up-down mass difference in Lattice QCD

G. M. de Divitiis, P. Dimopoulos, R. Frezzotti +8

We present a new method to evaluate with high precision isospin breaking effects due to the small mass difference between the up and down quarks using lattice QCD. Our proposal is…

hep-lat2006

Exploring twisted mass Lattice QCD with the Clover term

D. Becirevic, Ph. Boucaud, V. Lubicz +4

It has been shown that in the twisted mass formulation of Lattice QCD at maximal twist large cutoff effects are generated when the quark mass becomes of O(a Lambda_QCD^2). In gener…

hep-lat2017

Strange and charm HVP contributions to the muon ( $g - 2)$ including QED corrections with twisted-mass fermions

D. Giusti, V. Lubicz, G. Martinelli +2

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 including leadi…

hep-lat2009

f_B and f_Bs with maximally twisted Wilson fermions

ETM Collaboration, B. Blossier, P. Dimopoulos +13

We present a lattice QCD calculation of the heavy-light decay constants f_B and f_Bs performed with Nf=2 maximally twisted Wilson fermions, at four values of the lattice spacing. T…

hep-lat2026

Complete lattice QCD calculation of $K^{-} \to ℓ^{-} I^ˉ ½_{ℓ} ℓ^{^{'} +} ℓ^{^{'} -}$ 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 \ell^- \barÎ½_\ell \ell'^+ \ell'^-…

nucl-th1995

Electromagnetic $N - I^$ transition form factors in a light-front constituent quark model

F. Cardarelli, E. Pace, G. Salme' +1

A parameter-free evaluation of the $N - I^$ electromagnetic transition form factors is carried out in a light-front constituent quark model, based on $N$ and $I^$ eigenstates of a…

hep-lat2021

$K$ - and $D_{(s)}$ -meson leptonic decay constants with physical light, strange and charm quarks by ETMC

P. Dimopoulos, R. Frezzotti, M. Garofalo +1

We present a lattice QCD computation and preliminary results for the leptonic decay constants of the pseudoscalar mesons $K$ , $D$ and $D_{s}$ in the isosymmetric QCD limit. The com…

hep-lat2019

Scalar and vector form factors of $D \to I ¨ (K) ℓ I^½$ decays with $N_{f} = 2 + 1 + 1$ twisted fermions

V. Lubicz, L. Riggio, G. Salerno +2

We present a lattice determination of the vector and scalar form factors of the $D \to I ¨ (K) ℓ I^½$ semileptonic decays, which are relevant for the extraction of the CKM matrix e…

hep-lat2011

Form factors of the $D \to I ¨ $ and $D \to K$ semileptonic decays with $N_{f} = 2$ twisted mass lattice QCD

S. Di Vita, B. Haas, V. Lubicz +3

We present lattice results for the vector and scalar form factors of the semileptonic decays D -> Ï\ell Î½_ell and D -> K \ell Î½_\ell in the physical range of values of squared f…

hep-lat2008

Dynamical Twisted Mass Fermions with Light Quarks: Simulation and Analysis Details

Ph. Boucaud, P. Dimopoulos, F. Farchioni +16

In a recent paper [hep-lat/0701012] we presented precise lattice QCD results of our European Twisted Mass Collaboration (ETMC). They were obtained by employing two mass-degenerate…

hep-lat2011

Renormalisation constants of quark bilinears in lattice QCD with four dynamical Wilson quarks

B. Blossier, M. Brinet, N. Carrasco +17

We present preliminary results of the non-perturbative computation of the RI-MOM renormalisation constants in a mass-independent scheme for the action with Iwasaki glue and four dy…

hep-ph2025

Semileptonic $B \to D^{*}$ decays from light to $I ¨ $ leptons: the extraction of the form factor $F_{2}$ from data

G. Martinelli, S. Simula, L. Vittorio

We extend the Standard Model (SM) analysis of Ref. [1], which was limited to light leptons in the final state, to the semileptonic $B \to D^{*} I ¨ I^½_{I ¨} $ decay. By using quantities th…

hep-ex2004

Self-Consistent Data Analysis of the Proton Structure Function g1 and Extraction of its Moments

M. Osipenko, S. Simula, P. Bosted +6

The reanalysis of all available world data on the longitudinal asymmetry A|| is presented. The proton structure function g1 was extracted within a unique framework of data inputs a…

hep-ph2022

Prospects for precise predictions of $a_{I^} ¼$ in the Standard Model

G. Colangelo, M. Davier, A. X. El-Khadra +79

We discuss the prospects for improving the precision on the hadronic corrections to the anomalous magnetic moment of the muon, and the plans of the Muon $g - 2$ Theory Initiative to…

hep-lat2018

Tensor form factor of $D \to I ¨ (K) ℓ I^½$ and $D \to I ¨ (K) ℓℓ$ decays with $N_{f} = 2 + 1 + 1$ twisted-mass fermions

V. Lubicz, L. Riggio, G. Salerno +2

We present the first lattice Nf=2+1+1 determination of the tensor form factor $f_{T}^{D I ¨ (K)} (q^{2})$ corresponding to the semileptonic and rare $D \to I ¨ (K)$ decays as a function of…

hep-lat2022

Lattice calculation of the short and intermediate time-distance hadronic vacuum polarization contributions to the muon magnetic moment using twisted-mass fermions

C. Alexandrou, S. Bacchio, P. Dimopoulos +13

We present a lattice determination of the leading-order hadronic vacuum polarization (HVP) contribution to the muon anomalous magnetic moment, $a_{I^} ¼^{HVP}$ , in the so-called sh…

nucl-th1996

Quasi-elastic and inelastic inclusive electron scattering from an oxygen jet target

M. Anghinolfi, M. Ripani, M. Battaglieri +17

The results of an experiment on inclusive electron scattering from an oxygen jet target, performed in a wide range of energy and momentum transfer covering both quasi-elastic and $…

hep-lat2017

The pion vector form factor from Lattice QCD at the physical point

C. Alexandrou, S. Bacchio, P. Dimopoulos +9

We present an investigation of the electromagnetic pion form factor, $F_{I ¨} (Q^{2})$ , at small values of the four-momentum transfer $Q^{2}$ ( $≲ 0.25$ GeV $^{2}$ ), based on the gauge…

hep-lat2014

Up, down, strange and charm quark masses with Nf = 2+1+1 twisted mass lattice QCD

N. Carrasco, A. Deuzeman, P. Dimopoulos +16

We present a lattice QCD calculation of the up, down, strange and charm quark masses performed using the gauge configurations produced by the European Twisted Mass Collaboration wi…

hep-lat2019

Real photon emissions in leptonic decays

G. M. de Divitiis, A. Desiderio, M. Di Carlo +11

We present a non-perturbative calculation of the form factors which contribute to the amplitudes for the radiative decays $P \to ℓ I^ˉ ½_{ℓ} I^^{3}$ , where $P$ is a pseudoscalar m…

nucl-th1995

Nucleon and pion electromagnetic form factors in a light-front constituent quark model

F. Cardarelli, E. Pace, G. Salme' +1

Nucleon and pion electromagnetic form factors are evaluated in the spacelike region within a light-front constituent quark model, where eigenfunctions of a mass operator, reproduci…

hep-ph1998

The light baryon spectrum and the exchange of pseudoscalar and vector mesons among constituent quarks

F. Cardarelli, S. Simula

The effects of the exchanges of both pseudoscalar and vector mesons among constituent quarks on the mass spectra of light baryons are investigated, paying particular attention to t…

hep-lat2024

The $B_{s} \to I^¼^{+} I^¼^{-} I^^{3}$ decay rate at large $q^{2}$ from lattice QCD

R. Frezzotti, G. Gagliardi, V. Lubicz +5

We determine, by means of lattice QCD calculations, the local form factors describing the $B_{s} \to I^¼^{+} I^¼^{-} I^^{3}$ decay. For this analysis we make use of the gauge configurations…

hep-ph1999

A connection between inclusive semileptonic decays of bound and free heavy quarks

S. Ya. Kotkovsky, I. M. Narodetskii, S. Simula +1

A relativistic constituent quark model, formulated on the light-front, is used to derive a new parton approximation for the inclusive semileptonic decay width of the B-meson. A sim…

hep-lat2013

B-physics computations from Nf=2 tmQCD

N. Carrasco, M. Ciuchini, P. Dimopoulos +12

We present an accurate lattice QCD computation of the b-quark mass, the B and Bs decay constants, the B-mixing bag-parameters for the full four-fermion operator basis, as well as e…

hep-lat2010

K^0-\bar{K}^0 Mixing Beyond the SM from Nf=2 tmQCD

ETM Collaboration, P. Dimopoulos, R. Frezzotti +8

We present preliminary results on the of neutral kaon oscillations in extensions of the Standard Model. Using Nf=2 maximally twisted sea quarks and Osterwalder-Seiler valence quark…

hep-lat2013

A $N_{f} = 2 + 1 + 1$ "twisted" determination of the $b$ -quark mass, $f_{B}$ and $f_{B_{s}}$

N. Carrasco, P. Dimopoulos, R. Frezzotti +9

We present a lattice QCD determination of the $b$ -quark mass and of the $f_{B_{s}}$ and $f_{B}$ decay constants performed with $N_{f} = 2 + 1 + 1$ twisted mass Wilson fermions. We have u…

hep-ph1999

Analysis of the Lambda_b -> Lambda_c + l nu_l decay within a light-front constituent quark model

F. Cardarelli, S. Simula

We present an investigation of the Isgur-Wise form factor relevant for the semileptonic decay Lambda_b -> Î_c + l nu_l performed within a light-front constituent quark model. Adop…

hep-ph2012

B-physics from lattice QCD...with a twist

N. Carrasco, P. Dimopoulos, R. Frezzotti +11

We present a precise lattice QCD determination of the b-quark mass, of the B and Bs decay constants and first results for the B-meson bag parameters. For our computation we employ…

hep-ph2022

$∣ V_{c b} ∣$ , Lepton Flavour Universality and $S U (3)_{F}$ symmetry breaking in $B_{s} \to D_{s}^{(*)} ℓ I^½_{ℓ}$ decays through unitarity and lattice QCD

G. Martinelli, M. Naviglio, S. Simula +1

In addition to the well-known $B \to D^{(*)} ℓ I^½_{ℓ}$ decays, semileptonic $B_{s} \to D_{s}^{(*)} ℓ I^½_{ℓ}$ processes offer the possibility to determine the Cabibbo-Kobayashi-…

hep-lat2015

Momentum dependence of kaon semileptonic form factors with Nf=2+1+1 Twisted Mass fermions

N. Carrasco, P. Lami, V. Lubicz +2

We present a lattice QCD determination of the vector and scalar form factors of the kaon semileptonic decay $K \to I ¨ ℓ I^½$ , which is relevant for the determination of the CKM ma…

hep-lat2010

Non-perturbative renormalization of quark bilinear operators with Nf=2 (tmQCD) Wilson fermions and the tree-level improved gauge action

M. Constantinou, P. Dimopoulos, R. Frezzotti +8

We present results for the renormalization constants of bilinear quark operators obtained by using the tree-level Symanzik improved gauge action and the Nf=2 twisted mass fermion a…

nucl-th1998

Investigation of N-N* Electromagnetic Form Factors within a Front-Form CQM

E. Pace, G. Salme`, S. Simula

The helicity amplitudes for the transitions $N - S_{11}$ and $N - S_{31}$ are presented. The amplitudes have been obtained within our front-form CQM model, based on hadron eigenstates…

hep-lat2009

Electromagnetic form factor of the pion from twisted-mass lattice QCD at Nf=2

R. Frezzotti, V. Lubicz, S. Simula

We present a lattice calculation of the electromagnetic form factor of the pion obtained using the tree-level Symanzik improved gauge action with two flavors of dynamical twisted W…

hep-lat2016

Mass of the b-quark and B-decay constants from Nf=2+1+1 twisted-mass Lattice QCD

ETM Collaboration, A. Bussone, N. Carrasco +9

We present precise lattice computations for the b-quark mass, the quark mass ratios mb/mc and mb/ms as well as the leptonic B-decay constants. We employ gauge configurations with f…

hep-ph2005

Global Analysis of Data on the Proton Structure Function g1 and Extraction of its Moments

M. Osipenko, S. Simula, W. Melnitchouk +7

Inspired by recent measurements with the CLAS detector at Jefferson Lab, we perform a self-consistent analysis of world data on the proton structure function g1 in the range 0.17 <…

hep-lat2019

Electromagnetic and strong isospin-breaking corrections to the muon $g - 2$ from Lattice QCD+QED

D. Giusti, V. Lubicz, G. Martinelli +2

We present a lattice calculation of the leading-order electromagnetic and strong isospin-breaking corrections to the hadronic vacuum polarization (HVP) contribution to the anomalou…

hep-ph2014

QCD sum-rule results for heavy-light meson decay constants and comparison with lattice QCD

W. Lucha, D. Melikhov, S. Simula

Updated predictions for the decay constants of the D, Ds, B and Bs mesons obtained from Borel QCD sum rules for heavy-light currents are presented and compared with the recent latt…

hep-lat2013

Leading isospin breaking effects on the lattice

G. M. de Divitiis, R. Frezzotti, V. Lubicz +6

We present a method to evaluate on the lattice the leading isospin breaking effects due to both the small mass difference between the up and down quarks and the QED interaction. Ou…

hep-ph1996

Calculation of the Isgur-Wise function from a light-front constituent quark model

S. Simula

The space-like elastic form factor of heavy-light pseudoscalar mesons is investigated within a light-front constituent quark model in order to evaluate the Isgur-Wise form factor.…

hep-lat2020

First lattice calculation of radiative leptonic decay rates of pseudoscalar mesons

A. Desiderio, R. Frezzotti, M. Garofalo +8

We present a non-perturbative lattice calculation of the form factors which contribute to the amplitudes for the radiative decays $P \to ℓ I^ˉ ½_{ℓ} I^^{3}$ , where $P$ is a pseudo…

hep-lat2004

Light Hadron Spectrum, Renormalization Constants and Light Quark Masses with Two Dynamical Fermions

D. Becirevic, P. Boucaud, V. Gimenez +5

The results of a preliminary partially quenched (N_f=2) study of the light hadron spectrum, renormalization constants and light quark masses are presented. Numerical simulations ar…

hep-ph2025

What we can learn from the angular differential rates (only) in semileptonic $B \to D^{*} ℓ I^½_{ℓ}$ decays

G. Martinelli, S. Simula, L. Vittorio

We present a simple approach to the study of semileptonic $B \to D^{*} ℓ I^½_{ℓ}$ decays based on the angular distributions of the final state particles only. Our approach is mode…

hep-lat2018

Hypercubic effects in semileptonic decays of heavy mesons, toward $B \to I ¨ ℓ I^½$ , with $N_{f} = 2 + 1 + 1$ Twisted fermions

V. Lubicz, L. Riggio, G. Salerno +1

We present a preliminary study toward a lattice determination of the vector and scalar form factors of the $B \to I ¨ ℓ I^½$ semileptonic decays. We compute the form factors relati…

hep-ph1996

Weak Decay Form Factors of Heavy Pseudoscalar Mesons within a Light-Front Constituent Quark Model

I. L. Grach, I. M. Narodetskii, S. Simula

The transition form factors describing the semileptonic decays of heavy pseudoscalar mesons are investigated within a relativistic constituent quark model formulated on the light-f…

hep-lat2014

B-physics from Nf=2 tmQCD: the Standard Model and beyond

N. Carrasco, M. Ciuchini, P. Dimopoulos +12

We present a lattice QCD computation of the b-quark mass, the B and B_s decay constants, the B-mixing bag parameters for the full four-fermion operator basis as well as determinati…

hep-lat2004

Semileptonic Hyperon Decays on the Lattice: an Exploratory Study

D. Guadagnoli, G. Martinelli, M. Papinutto +1

We present preliminary results of an exploratory lattice study of the vector form factor $f_{1} (q^{2} = 0)$ relevant for the semileptonic hyperon decay $I^£^{-} - - > n l I^½$ . This study…

nucl-th1997

Electroproduction of the Roper resonance and the constituent quark model

F. Cardarelli, E. Pace, G. Salme' +1

A parameter-free evaluation of the $N - P_{11} (1440)$ electromagnetic transition form factors is performed within a light-front constituent quark model, using for the first time th…

hep-lat2007

Light quark masses and pseudoscalar decay constants from Nf=2 Lattice QCD with twisted mass fermions

B. Blossier, Ph. Boucaud, P. Dimopoulos +15

We present the results of a lattice QCD calculation of the average up-down and strange quark masses and of the light meson pseudoscalar decay constants with Nf=2 dynamical fermions…

hep-lat2004

Extracting excited states from lattice QCD: the Roper resonance

D. Guadagnoli, M. Papinutto, S. Simula

We present a new method for extracting excited states from a single two-point correlation function calculated on the lattice. Our method simply combines the correlation function ev…

hep-ph1999

Quark-binding effects in inclusive decays of heavy mesons

D. Melikhov, S. Simula

We present a new approach to the analysis of quark-binding effects in inclusive decays of heavy mesons within the relativistic dispersion quark model. Various differential distribu…

nucl-th1997

Bloom-Gilman duality of inelastic structure functions in nucleon and nuclei

G. Ricco, M. Anghinolfi, M. Ripani +2

The Bloom-Gilman local duality of the inelastic structure function of the proton, the deuteron and light complex nuclei is investigated using available experimental data in the squ…

hep-lat2022

FLAG Review 2021

Y. Aoki, T. Blum, G. Colangelo +34

We review lattice results related to pion, kaon, $D$ -meson, $B$ -meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communi…

hep-lat2020

FLAG Review 2019

S. Aoki, Y. Aoki, D. Becirevic +32

We review lattice results related to pion, kaon, $D$ -meson, $B$ -meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communi…

hep-ph1999

Bloom-Gilman duality of the nucleon structure function and the elastic peak contribution

G. Ricco, M. Anghinolfi, M. Ripani +2

The occurrence of the Bloom-Gilman duality in the nucleon structure function is investigated by analyzing the Q**2-behavior of low-order moments, both including and excluding the c…

hep-ph2020

The anomalous magnetic moment of the muon in the Standard Model

T. Aoyama, N. Asmussen, M. Benayoun +129

We review the present status of the Standard Model calculation of the anomalous magnetic moment of the muon. This is performed in a perturbative expansion in the fine-structure con…

hep-lat2016

Finite-Volume QED Corrections to Decay Amplitudes in Lattice QCD

V. Lubicz, G. Martinelli, C. T. Sachrajda +3

We demonstrate that the leading and next-to-leading finite-volume effects in the evaluation of leptonic decay widths of pseudoscalar mesons at $O (I^\pm)$ are universal, i.e. they are…

hep-lat2016

Hypercubic Effects in semileptonic $D \to I ¨ $ decays on the lattice

V. Lubicz, L. Riggio, G. Salerno +2

We present a lattice determination of the vector and scalar form factors of the semileptonic $D \to I ¨ ℓ I^½$ decays, which are relevant for the extraction of the CKM matrix eleme…

hep-lat2007

Pseudo-scalar meson form factors with maximally twisted Wilson fermions at Nf = 2

ETM Collaboration, S. Simula

We present preliminary results for various electroweak form factors of pseudo-scalar mesons using the tree-level improved Symanzik gauge action and the maximally twisted mass fermi…

hep-lat2021

Unitarity Bounds for Semileptonic Decays in Lattice QCD

M. Di Carlo, G. Martinelli, M. Naviglio +3

In this work we discuss in detail the non-perturbative determination of the momentum dependence of the form factors entering in semileptonic decays using unitarity and analyticity…

hep-lat2019

Extraction of multiple exponential signals from lattice correlation functions

S. Romiti, S. Simula

We present a fast and simple algorithm that allows the extraction of multiple exponential signals from the temporal dependence of correlation functions evaluated on the lattice inc…

hep-lat2018

$K \to I ¨ $ matrix elements of the chromomagnetic operator on the lattice

M. Constantinou, M. Costa, R. Frezzotti +5

We present the results of the first lattice QCD calculation of the $K \to I ¨ $ matrix elements of the chromomagnetic operator $O_{C M} = g s ˉ I ¨ _{I^¼ I^½} G_{I^¼ I^½} d$ , which app…

hep-lat2007

Twisted mass QCD in the charm sector

B. Blossier, G. Herdoiza, S. Simula

We present preliminary results for the charm quark mass $m_{c}$ and the $D$ and $D_{s}$ mesons decay constants $f_{D}$ and $f_{D_{s}}$ from a lattice QCD calculation with $N_{f}$ = 2 d…

nucl-th1995

Realistic Model of the Nucleon Spectral Function in Few- and Many- Nucleon Systems

C. Ciofi degli Atti, S. Simula

By analysing the high momentum features of the nucleon momentum distribution in light and complex nuclei, it is argued that the basic two-nucleon configurations generating the stru…

hep-lat2009

Kaon oscillations in the Standard Model and Beyond using Nf=2 dynamical quarks

V. Bertone, P. Dimopoulos, R. Frezzotti +8

We compute non-perturbatively the B-parameters of the complete basis of four-fermion operators needed to study the Kaon oscillations in the SM and in its supersymmetric extension.…

hep-lat2019

Light-meson leptonic decay rates in lattice QCD+QED

M. Di Carlo, D. Giusti, V. Lubicz +5

The leading electromagnetic (e.m.) and strong isospin-breaking corrections to the $I ¨ ^{+} \to I^¼^{+} I^½ [I^^{3}]$ and $K^{+} \to I^¼^{+} I^½ [I^^{3}]$ leptonic decay rates are evaluated for the first…

nucl-th1995

Nucleon-Nucleon Correlations and Inclusive Electron Scattering off Few-Nucleon Systems at $x > 1$

S. Simula

Inclusive electron scattering off few-nucleon systems is investigated at $x > 1$ and high momentum transfer, including the contributions from quasi-elastic and deep inelastic scatter…

hep-lat2011

BK-parameter from Nf = 2 twisted mass lattice QCD

ETM Collaboration, M. Constantinou, P. Dimopoulos +12

We present an unquenched $N_{f} = 2$ lattice computation of the $B_{K}$ parameter which controls $K^{0} - K ˉ^{0}$ oscillations. A partially quenched setup is employed with two maximally…

hep-lat2021

Ratio of kaon and pion leptonic decay constants with $N_{f} = 2 + 1 + 1$ Wilson-clover twisted-mass fermions

C. Alexandrou, S. Bacchio, G. Bergner +12

We present a determination of the ratio of kaon and pion leptonic decay constants in isosymmetric QCD (isoQCD), $f_{K} / f_{I ¨} $ , making use of the gauge ensembles produced by the Exte…

Publications (210)

Right-handed currents in rare exclusive B -> (K, K*) nu bar{nu} decays

The nucleon Drell-Hearn-Gerasimov sum rule within a relativistic constituent quark model

Renormalisation of quark bilinears with Nf=2 Wilson fermions and tree-level improved gauge action

Lattice calculation of the Ds​ meson radiative form factors over the full kinematical range

Lattice study of semileptonic form factors with twisted boundary conditions

Leading and higher twists in the proton polarised structure function g1p at large Bjorken-x

Pseudoscalar decay constants fK​/fI¨​, fD​ and fDs​​ with Nf​=2+1+1 ETMC configurations

Neutral meson oscillations in the Standard Model and beyond from Nf=2 Twisted Mass Lattice QCD

Isgur-Wise form factors of heavy baryons within a light-front constituent quark model

K -> pi matrix elements of the chromagnetic operator on the lattice

Non-perturbatively Renormalized Light Quark Masses with Two Dynamical Fermions

First lattice calculation of the QED corrections to leptonic decay rates

Exclusive determinations of ∣Vcb​∣ and R(D∗) through unitarity

Improved analysis of the scalar and vector form factors of kaon semileptonic decays with N_f = 2 twisted-mass fermions

Quark masses using twisted mass fermion gauge ensembles

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

Lattice QCD determination of m_b, f_B and f_Bs with twisted mass Wilson fermions

A Kinematically Complete Measurement of the Proton Structure Function F2 in the Resonance Region and Evaluation of Its Moments

Measurement of the Deuteron Structure Function F2 in the Resonance Region and Evaluation of Its Moments

Vector and scalar form factors for K- and D-meson semileptonic decays from twisted mass fermions with Nf = 2

The light-quark contribution to the leading HVP term of the muon g−2 from twisted-mass fermions

Masses and decay constants of Bc(∗)​ mesons with Nf​=2+1+1 twisted mass fermions

Matrix elements of the electromagnetic operator between kaon and pion states

The Neutron Electric Dipole Moment in the Instanton Vacuum: Quenched Versus Unquenched Simulations

HVP contributions to the muon (g−2) including QED corrections with twisted-mass fermions

Average up/down, strange and charm quark masses with Nf=2 twisted mass lattice QCD

Lepton anomalous magnetic moments in Lattice QCD+QED

First Lattice QCD Study of the Sigma -> n Axial and Vector Form Factors with SU(3) Breaking Corrections

Electromagnetic form factors in the light-front formalism and the Feynman triangle diagram: spin-0 and spin-1 two-fermion systems

Time windows of the muon HVP from twisted-mass lattice QCD

Updates on the determination of ∣Vcb​∣, R(D∗) and ∣Vub​∣/∣Vcb​∣

Isospin breaking effects due to the up-down mass difference in Lattice QCD

Exploring twisted mass Lattice QCD with the Clover term

Strange and charm HVP contributions to the muon (g−2) including QED corrections with twisted-mass fermions

f_B and f_Bs with maximally twisted Wilson fermions

Complete lattice QCD calculation of K−→ℓ−I^ˉ½ℓ​ℓ′+ℓ′− form factors

Electromagnetic N−I^ transition form factors in a light-front constituent quark model

K- and D(s)​-meson leptonic decay constants with physical light, strange and charm quarks by ETMC

Scalar and vector form factors of D→I¨(K)ℓI^½ decays with Nf​=2+1+1 twisted fermions

Form factors of the D→I¨ and D→K semileptonic decays with Nf​=2 twisted mass lattice QCD

Dynamical Twisted Mass Fermions with Light Quarks: Simulation and Analysis Details

Renormalisation constants of quark bilinears in lattice QCD with four dynamical Wilson quarks

Semileptonic B→D∗ decays from light to I¨ leptons: the extraction of the form factor F2​ from data

Self-Consistent Data Analysis of the Proton Structure Function g1 and Extraction of its Moments

Prospects for precise predictions of aI^​¼ in the Standard Model

Tensor form factor of D→I¨(K)ℓI^½ and D→I¨(K)ℓℓ decays with Nf​=2+1+1 twisted-mass fermions

Lattice calculation of the short and intermediate time-distance hadronic vacuum polarization contributions to the muon magnetic moment using twisted-mass fermions

Quasi-elastic and inelastic inclusive electron scattering from an oxygen jet target

The pion vector form factor from Lattice QCD at the physical point

Up, down, strange and charm quark masses with Nf = 2+1+1 twisted mass lattice QCD

Real photon emissions in leptonic decays

Nucleon and pion electromagnetic form factors in a light-front constituent quark model

The light baryon spectrum and the exchange of pseudoscalar and vector mesons among constituent quarks

The Bs​→I^¼+I^¼−I^3 decay rate at large q2 from lattice QCD

A connection between inclusive semileptonic decays of bound and free heavy quarks

B-physics computations from Nf=2 tmQCD

K^0-\bar{K}^0 Mixing Beyond the SM from Nf=2 tmQCD

A Nf​=2+1+1 "twisted" determination of the b-quark mass, fB​ and fBs​​

Analysis of the Lambda_b -> Lambda_c + l nu_l decay within a light-front constituent quark model

B-physics from lattice QCD...with a twist

∣Vcb​∣, Lepton Flavour Universality and SU(3)F​ symmetry breaking in Bs​→Ds(∗)​ℓI^½ℓ​ decays through unitarity and lattice QCD

Momentum dependence of kaon semileptonic form factors with Nf=2+1+1 Twisted Mass fermions

Non-perturbative renormalization of quark bilinear operators with Nf=2 (tmQCD) Wilson fermions and the tree-level improved gauge action

Investigation of N-N* Electromagnetic Form Factors within a Front-Form CQM

Electromagnetic form factor of the pion from twisted-mass lattice QCD at Nf=2

Mass of the b-quark and B-decay constants from Nf=2+1+1 twisted-mass Lattice QCD

Global Analysis of Data on the Proton Structure Function g1 and Extraction of its Moments

Electromagnetic and strong isospin-breaking corrections to the muon g−2 from Lattice QCD+QED

QCD sum-rule results for heavy-light meson decay constants and comparison with lattice QCD

Leading isospin breaking effects on the lattice

Calculation of the Isgur-Wise function from a light-front constituent quark model

First lattice calculation of radiative leptonic decay rates of pseudoscalar mesons

Light Hadron Spectrum, Renormalization Constants and Light Quark Masses with Two Dynamical Fermions

What we can learn from the angular differential rates (only) in semileptonic B→D∗ℓI^½ℓ​ decays

Hypercubic effects in semileptonic decays of heavy mesons, toward B→I¨ℓI^½, with Nf​=2+1+1 Twisted fermions

Weak Decay Form Factors of Heavy Pseudoscalar Mesons within a Light-Front Constituent Quark Model

B-physics from Nf=2 tmQCD: the Standard Model and beyond

Semileptonic Hyperon Decays on the Lattice: an Exploratory Study

Electroproduction of the Roper resonance and the constituent quark model

Lattice calculation of the $D_{s}$ meson radiative form factors over the full kinematical range

Pseudoscalar decay constants $f_{K} / f_{I ¨} $ , $f_{D}$ and $f_{D_{s}}$ with $N_{f} = 2 + 1 + 1$ ETMC configurations

Exclusive determinations of $∣ V_{c b} ∣$ and $R (D^{*})$ through unitarity

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

The light-quark contribution to the leading HVP term of the muon $g - 2$ from twisted-mass fermions

Masses and decay constants of $B_{c}^{(*)}$ mesons with $N_{f} = 2 + 1 + 1$ twisted mass fermions

HVP contributions to the muon ( $g - 2$ ) including QED corrections with twisted-mass fermions

Updates on the determination of $∣ V_{c b} ∣$ , $R (D^{*})$ and $∣ V_{u b} ∣/∣ V_{c b} ∣$

Strange and charm HVP contributions to the muon ( $g - 2)$ including QED corrections with twisted-mass fermions

Complete lattice QCD calculation of $K^{-} \to ℓ^{-} I^ˉ ½_{ℓ} ℓ^{^{'} +} ℓ^{^{'} -}$ form factors

Electromagnetic $N - I^$ transition form factors in a light-front constituent quark model

$K$ - and $D_{(s)}$ -meson leptonic decay constants with physical light, strange and charm quarks by ETMC

Scalar and vector form factors of $D \to I ¨ (K) ℓ I^½$ decays with $N_{f} = 2 + 1 + 1$ twisted fermions

Form factors of the $D \to I ¨ $ and $D \to K$ semileptonic decays with $N_{f} = 2$ twisted mass lattice QCD

Semileptonic $B \to D^{*}$ decays from light to $I ¨ $ leptons: the extraction of the form factor $F_{2}$ from data

Prospects for precise predictions of $a_{I^} ¼$ in the Standard Model

Tensor form factor of $D \to I ¨ (K) ℓ I^½$ and $D \to I ¨ (K) ℓℓ$ decays with $N_{f} = 2 + 1 + 1$ twisted-mass fermions

The $B_{s} \to I^¼^{+} I^¼^{-} I^^{3}$ decay rate at large $q^{2}$ from lattice QCD

A $N_{f} = 2 + 1 + 1$ "twisted" determination of the $b$ -quark mass, $f_{B}$ and $f_{B_{s}}$

$∣ V_{c b} ∣$ , Lepton Flavour Universality and $S U (3)_{F}$ symmetry breaking in $B_{s} \to D_{s}^{(*)} ℓ I^½_{ℓ}$ decays through unitarity and lattice QCD

Electromagnetic and strong isospin-breaking corrections to the muon $g - 2$ from Lattice QCD+QED

What we can learn from the angular differential rates (only) in semileptonic $B \to D^{*} ℓ I^½_{ℓ}$ decays

Hypercubic effects in semileptonic decays of heavy mesons, toward $B \to I ¨ ℓ I^½$ , with $N_{f} = 2 + 1 + 1$ Twisted fermions

Hypercubic Effects in semileptonic $D \to I ¨ $ decays on the lattice

$K \to I ¨ $ matrix elements of the chromomagnetic operator on the lattice

Nucleon-Nucleon Correlations and Inclusive Electron Scattering off Few-Nucleon Systems at $x > 1$

Ratio of kaon and pion leptonic decay constants with $N_{f} = 2 + 1 + 1$ Wilson-clover twisted-mass fermions