Peng Sun

Pion Transition Form Factor in Lattice QCD

Shihao Su, Liuming Liu, Peng Sun

We investigate the neutral pion transition form factor $F_{π^{0} γ^{*} γ^{*}} (q_{1}^{2}, q_{2}^{2})$ in lattice QCD and confirm that the connected and disconnected contributions have the same…

Accurate B meson and Bottomonium masses and decay constants from the tadpole improved clover ensembles

Mengchu Cai, Hai-Yang Du, Xiangyu Jiang +4

We present a determination of the bottom quark mass, the masses of S-wave bottom mesons, and their decay constants using an anisotropic clover fermion discretization for the heavy…

Impact of Dynamical Charm Quark and Mixed Action Effect on Light Hadron Masses and Decay Constants

Tong-Wei Lin, Zun-Xian Zhang, Mengchu Cai +8

We investigate the impact of including a dynamical charm quark on the properties of light hadrons. Our study compares the calculations performed on 2+1+1 flavor (HISQ fermion) ense…

Total Gluon Helicity Contribution to the Proton Spin from Lattice QCD

Dian-Jun Zhao, Long Chen, Hongxin Dong +8

We report a state-of-the-art lattice QCD calculation of the total gluon helicity contribution to the proton spin, $Δ G$ . The calculation is done on ensembles with three different la…

Precision determination of nucleon iso-vector scalar and tensor charges at the physical point

Ji-Hao Wang, Zhi-Cheng Hu, Xiangdong Ji +4

We report a high precision calculation of the isospin vector charge $g_{S, T}$ of the nucleon using recently proposed ``blending" method which provides a high-precision stochastic e…

Unpolarized gluon PDF of the nucleon from lattice QCD at physical point in the continuum limit

Chen Chen, Chunhua Zeng, Hongxin Dong +8

We report a state-of-the-art lattice QCD calculation of the nucleon unpolarized gluon parton distribution function employing large-momentum effective theory. The calculation is car…

Realization of all-to-all fermion propagator for the first principle high accuracy strong interaction prediction

Zhi-Cheng Hu, Ji-Hao Wang, Xiangyu Jiang +4

We propose a ``blending" algorithm that projects the all-to-all fermion propagator onto spatial low-frequency modes (LFM) combines the projection with a stochastic estimate of spat…

Quark Transverse Spin-Momentum Correlation of the Nucleon from Lattice QCD: The Boer-Mulders Function

Lingquan Ma, Jun Hua, Andreas Schäfer +9

We present the first lattice QCD calculation of the quark transverse spin-momentum correlation, i.e., the naive time-reversal-odd Boer-Mulders function, of the nucleon, using large…

Quark Transverse Spin-Momentum Correlation of the Pion from Lattice QCD: The Boer-Mulders Function

Lisa Walter, Jun Hua, Sebastian Lahrtz +10

We present the first lattice QCD calculation of the quark transverse spin-momentum correlation, i.e., the T-odd Boer-Mulders function, of the pion, using large-momentum effective t…

Unveiling the Strong Interaction origin of Baryon Masses with Lattice QCD

Bolun Hu, Haiyang Du, Xiangyu Jiang +3

Both the Higgs mechanism and strong interactions contribute to the masses of visible matter, yet how the six Higgs-generated quark masses and uniform strong interaction strength de…

Parton Distribution Function of a Deuteron-like Dibaryon System from Lattice QCD

Chen Chen, Liuming Liu, Peng Sun +5

We report a lattice QCD calculation of the parton distribution function (PDF) of a deuteron-like dibaryon system using large-momentum effective theory. The calculation is done on t…

Charmed meson masses and decay constants in the continuum from the tadpole improved clover ensembles

Hai-Yang Du, Bolun Hu, Mengchu Cai +10

We present the determination of the charm quark mass, the masses, and decay constants of charmed mesons using thirteen 2+1 flavor gauge ensembles at five different lattice spacings…