179 citations · 1.2k across the 44 of their papers we have counts for
14 papers · 1 filter
Lattice Calculation of Pion Form Factor with Overlap Fermions
Gen Wang, Jian Liang, Terrence Draper +2
We present a precise calculation of the pion form factor using overlap fermions on seven ensembles of 2+1-flavor domain-wall configurations with pion masses varying from 139 to 340…
Roper State from Overlap Fermions
Mingyang Sun, Ying Chen, Gen Wang +11
The Roper state is extracted with valence overlap fermions on a -flavor domain-wall fermion lattice (spacing fm and MeV) using both the Sequential Empi…
Towards the nucleon hadronic tensor from lattice QCD
Jian Liang, Terrence Draper, Keh-Fei Liu +2
We present the first calculation of the hadronic tensor on the lattice for the nucleon. The hadronic tensor can be used to extract the structure functions in deep inelastic scatter…
Ratio of strange to momentum fraction in disconnected insertions
Jian Liang, Mingyang Sun, Yi-Bo Yang +2
The ratio of the strange quark momentum fraction to that of light quark or in disconnected insertions (DI) is calculated on the lattice with…
Quark spins and Anomalous Ward Identity
Jian Liang, Yi-Bo Yang, Terrence Draper +2
We calculate the intrinsic quark spin contribution to the total proton spin using overlap valence quarks on three ensembles of -flavor RBC/UKQCD domain-wall configurations wit…
Glue spin and helicity in proton from lattice QCD
Yi-Bo Yang, Raza Sabbir Sufian, Andrei Alexandru +4
We report the first lattice QCD calculation of the glue spin in the nucleon. The lattice calculation is carried out with valence overlap fermions on 2+1 flavor DWF gauge configurat…
Strange Quark Magnetic Moment of the Nucleon at Physical Point
Raza Sabbir Sufian, Yi-Bo Yang, Andrei Alexandru +3
We report a lattice QCD calculation of the strange quark contribution to the nucleon's magnetic moment and charge radius. This analysis presents the first direct determination of s…
Glue Spin of the Proton
Yi-Bo Yang, Raza Sabbir Sufian, Andrei Alexandru +3
We report the progress on the lattice QCD calculation of the glue spin contribution to proton spin. This calculation is carried out with valence overlap fermion on 2+1 flavor DWF g…
Strange and Charm Quark Spins from Anomalous Ward Identity
Ming Gong, Yi-Bo Yang, Jian Liang +3
We present a calculation of the strange and charm quark contributions to the nucleon spin from the anomalous Ward identity (AWI). It is performed with overlap valence quarks on 2+1…
Anatomy of the resonance from lattice QCD at the physical point
Wei Sun, Andrei Alexandru, Ying Chen +3
We propose a strategy to access the component of the resonance in lattice QCD. Through a mixed action formalism (overlap valence on domain wall sea), the energy of t…
Quark Spin in Proton from Anomalous Ward Indentity
Yi-Bo Yang, Ming Gong, Keh-Fei Liu +1
We report a quark spin calculation from the anomalous Ward identity with overlap fermions on 2+1 flavor dynamical fermion configurations with light sea quark masses. Such a formula…
Meson Mass Decomposition from Lattice QCD
Yi-Bo Yang, Ying Chen, Terrence Draper +4
Hadron masses can be decomposed as a sum of quark and glue components which are defined through hadronic matrix elements of QCD operators. The components consist of the quark mass…
Quark and Glue Momenta and Angular Momenta in the Proton --- a Lattice Calculation
K. F. Liu, M. Deka, T. Doi +10
We report a complete calculation of the quark and glue momenta and angular momenta in the proton. These include the quark contributions from both the connected and disconnected ins…
Is Meson a Hybrid?
Yi-Bo Yang, Ying Chen, Gang Li +1
We calculate the vacuum to meson matrix elements of the dimension-4 operator $\barψγ_4\nblr_i ψ$ and dimension-5 operator $\barψ\epsγ_jψB_k$ of the meson on the lattice an…