14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Rome Tor VergataIT2.7k papers
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13 papers · 2 filters
Simulation of an ensemble of twisted mass clover-improved fermions at physical quark masses
Jacob Finkenrath, Constantia Alexandrou, Simone Bacchio +7
We present a general strategy aimed at generating configurations with quarks at their physical mass using maximally twisted mass fermions to ensure automatic imp…
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 and decay rates are evaluated for the first time on the lattice, followi…
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 matrix elements of the chromomagnetic operator , which appears i…
Non-perturbative determination of c_V, Z_V and Z_S/Z_P in N_f=3 lattice QCD
Jochen Heitger, Fabian Joswig, Anastassios Vladikas +1
We report on non-perturbative computations of the improvement coefficient c_V and the renormalization factor Z_V of the vector current in three-flavour O(a) improved lattice QCD wi…
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, , at small values of the four-momentum transfer ( GeV), based on the gauge c…
Testing a non-perturbative mechanism for elementary fermion mass generation: lattice setup
Stefano Capitani, Giulia Maria de Divitiis, Petros Dimopoulos +7
In this contribution we lay down a lattice setup that allows for the non-perturbative study of a field theoretical model where a SU(2) fermion doublet, subjected to non-Abelian gau…
Testing a non-perturbative mechanism for elementary fermion mass generation: numerical results
Stefano Capitani, Giulia Maria de Divitiis, Petros Dimopoulos +7
Based on a recent proposal according to which elementary particle masses could be generated by a non-perturbative dynamical phenomenon, alternative to the Higgs mechanism, we carry…
openQ*D simulation code for QCD+QED
Isabel Campos, Patrick Fritzsch, Martin Hansen +4
The openQ*D code for the simulation of QCD+QED with C boundary conditions is presented. This code is based on openQCD-1.6, from which it inherits the core features that ens…
Light meson form factors at high from lattice QCD
Jonna Koponen, André Zimermmane-Santos, Christine Davies +2
Measurements and theoretical calculations of meson form factors are essential for our understanding of internal hadron structure and QCD, the dynamics that bind the quarks in hadro…
Strong-isospin-breaking correction to the muon anomalous magnetic moment from lattice QCD at the physical point
Bipasha Chakraborty, C. T. H. Davies, C. DeTar +17
All lattice-QCD calculations of the hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment to-date have been performed with degenerate up- and down-quark…
Landau-Ginzburg-Wilson approach to critical phenomena in the presence of gauge symmetries
Andrea Pelissetto, Antonio Tripodo, Ettore Vicari
We critically reconsider the Landau-Ginzburg-Wilson (LGW) approach to critical phenomena in the presence of gauge symmetries. In the LGW framework, to obtain the universal features…
Nonperturbative comparison of clover and HISQ quarks in lattice QCD and the properties of the phi meson
Bipasha Chakraborty, C. T. H. Davies, G. C. Donald +2
We compare correlators for pseudoscalar and vector mesons made from valence strange quarks using the clover quark and highly improved staggered quark (HISQ) formalisms in full latt…
The pseudoscalar meson electromagnetic form factor at high from full lattice QCD
J. Koponen, A. C. Zimermmane-Santos, C. T. H. Davies +2
We give an accurate determination of the vector (electromagnetic) form factor, , for a light pseudoscalar meson up to squared momentum transfer values of 6 $\mathrm{G…