187 citations · 1.4k across the 60 of their papers we have counts for
12 papers · 1 filter
Lattice calculation of the R-ratio smeared with Gaussian kernel
Constantia Alexandrou, Simone Bacchio, Alessandro De Santis +15
The ratio of the cross-sections for hadrons and is a valuable energy-dependent probe of the hadronic sector of the Standard Model. Moreover, t…
Short \& intermediate distance HVP contributions to muon g-2: SM (lattice) prediction versus 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…
Pseudoscalar-pole contributions to the muon at the physical point
Sebastian Burri, Gurtej Kanwar, Constantia Alexandrou +14
Pseudoscalar-pole diagrams are an important component of estimates of the hadronic light-by-light (HLbL) contribution to the muon . We report on our computation of the transit…
Lattice gauge ensembles and data management
Gunnar Bali, Ryan Bignell, Anthony Francis +10
The generation of ensembles of gauge configurations is a considerable expense. The preservation and curation of these ensembles constitutes a valuable shared resource for the latti…
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, , in the so-called sho…
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…
Twisted mass ensemble generation on GPU machines
Bartosz Kostrzewa, Simone Bacchio, Jacob Finkenrath +4
We present how we ported the Hybrid Monte Carlo implementation in the tmLQCD software suite to GPUs through offloading its most expensive parts to the QUDA library. We discuss our…
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 -ratio between the cross-section into hadrons and that into muons. By using the method of Ref.[1], that a…
Nucleon transverse quark spin densities
Constantia Alexandrou, Simone Bacchio, Martha Constantinou +9
We present a calculation of the Mellin moments of the nucleon transverse quark spin densities extracted from the unpolarized and transversity generalized form factors. We use three…
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, , in the so-called sho…
First moments of the nucleon transverse quark spin densities using lattice QCD
C. Alexandrou, S. Bacchio, M. Constantinou +9
We present a calculation of the Mellin moments of the transverse quark spin densities in the nucleon using lattice QCD. The densities are extracted from the unpolarized and transve…
Twisted mass gauge ensembles at physical values of the light, strange and charm quark masses
Jacob Finkenrath, Constantia Alexandrou, Simone Bacchio +9
Lattice QCD simulations directly at physical masses of dynamical light, strange and charm quarks are highly desirable especially to remove systematic errors due to chiral extrapola…