A5010204307- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Pulsars and Gravitational Waves Research
- Nuclear physics research studies
- Rare-earth and actinide compounds
Temple University
2019-2022
Argonne National Laboratory
2019-2022
Cyprus Institute
2019-2022
University of Cyprus
2019-2022
Temple College
2019
Michigan State University
2019
John von Neumann Institute for Computing
2019
We present results for the moments of nucleon isovector vector and axial generalized parton distribution functions computed within lattice QCD. Three ensembles maximally twisted mass clover-improved fermions simulated with a physical value pion are analyzed. Two these generated using two degenerate light quarks. A third ensemble is used having, in addition to quarks, strange charm quarks sea. careful analysis convergence ground state carried out that shown be essential extracting correct...
We present a calculation of the pion and kaon Mellin moment $\langle x^3 \rangle$ extracted directly in lattice QCD using three-derivative local operator. use one ensemble gauge configurations with two degenerate light, strange charm quark ($N_f=2+1+1$) maximally twisted mass fermions clover improvement. The reproduces $\sim260$ MeV, $\sim530$ MeV. Excited-states contamination is evaluated four values source-sink time separation within range $1.12-1.67$ fm. an operator that free mixing,...
We present a calculation of the scalar, vector, and tensor form factors for pion kaon in lattice QCD. use an ensemble two degenerate light, strange charm quark ($N_f=2+1+1$) maximally twisted mass fermions with clover improvement. The corresponding masses are about 265 MeV 530 MeV, respectively. is done both rest boosted frames obtaining data four-vector momentum transfer squared up to $-q^2=2.5$ GeV$^2$ 3 kaon. excited-states effects studied by analyzing six values source-sink time...
We present a calculation of the pion quark momentum fraction, $\langle x \rangle$, and its third Mellin moment x^2 \rangle$. also obtain directly, for first time, \rangle$ kaon using local operators. use an ensemble two degenerate light, strange charm ($N_f=2+1+1$) maximally twisted mass fermions with clover improvement. The masses are chosen so that they reproduce about 260 MeV, 530 MeV. lattice spacing is 0.093 fm has spatial extent 3 fm. analyze several values source-sink time separation...
In this work we present preliminary results on the nucleon axial and tensor charges, quark momentum fraction first moment of helicity distribution. The simulations have been performed using two $N_f{=}2$ $N_f{=}2{+}1{+}1$ ensembles. Both ensembles a twisted mass action with clover term masses fixed at their physical values (physical point) volumes $64^3{\times}128$. extracted quantities are compared from an existing ($48^3{\times}96$) ensemble. This comparison allows one to address volume...
We present a calculation of the connected-diagram contributions to first three non-trivial Mellin moments for pion and kaon, extracted using local operators with up 3 covariant derivatives. use one ensemble gauge configurations two degenerate light, strange charm quark ($N_f$=2+1+1) maximally twisted mass fermions clover improvement. The has $\sim$260 MeV, kaon $\sim$530 MeV. reconstruct $x$-dependence PDFs via fits our results, find that lattice data favor $(1-x)^2$-behavior in large-$x$...
In this work we present preliminary results on the nucleon axial and tensor charges, quark momentum fraction first moment of helicity distribution. The simulations have been performed using two $N_f{=}2$ $N_f{=}2{+}1{+}1$ ensembles. Both ensembles a twisted mass action with clover term masses fixed at their physical values (physical point) volumes $64^3{\times}128$. extracted quantities are compared from an existing ($48^3{\times}96$) ensemble. This comparison allows one to address volume...
We present a calculation of the scalar, vector and tensor pion kaon form factors using one ensemble two degenerate light, strange charm quark (Nf=2+1+1) maximally twisted mass fermions with clover improvement. The masses are chosen so that they produce about 265 MeV, 530 MeV. lattice spacing is 0.093 fm has spatial extent 3 fm. use rest frame, as well boosted frame to obtain for wider denser set four-vector momentum transfer squared, $Q^2$. To assess eliminate excited-states contamination,...
We present a calculation of the connected-diagram contributions to first three non-trivial Mellin moments for pion and kaon, extracted using local operators with up 3 covariant derivatives. use one ensemble gauge configurations two degenerate light, strange charm quark ($N_f$=2+1+1) maximally twisted mass fermions clover improvement. The has $\sim$260 MeV, kaon $\sim$530 MeV. reconstruct $x$-dependence PDFs via fits our results, find that lattice data favor $(1-x)^2$-behavior in large-$x$...
We present a calculation of the scalar, vector and tensor pion kaon form factors using one ensemble two degenerate light, strange charm quark ($N_f=2+1+1$) maximally twisted mass fermions with clover improvement. The masses are chosen so that they produce about 265 MeV, 530 MeV. lattice spacing is 0.093 fm has spatial extent 3 fm. use rest frame, as well boosted frame to obtain for wider denser set four-vector momentum transfer squared, $Q^2$. To assess eliminate excited-states...