Zobrazeno 1 - 10
of 133
pro vyhledávání: '"He, Fangcheng"'
We perform the first Lattice calculation about the charmed hadron spin decomposition using overlap fermions on a 2+1 flavor RBC/UKQCD domain-wall gauge configurations at 0.083 fm with 300 MeV pion mass. It is found that the contributions of quark spi
Externí odkaz:
http://arxiv.org/abs/2410.08046
Autor:
He, Fangcheng, Zahed, Ismail
We analyze threshold photoproduction of heavy mesons off a deuteron and Helium-4, using the QCD factorization method. Assuming large skewness, the production amplitude is dominated by the leading twist-2 gluonic energy-momentum tensor (EMT). We use o
Externí odkaz:
http://arxiv.org/abs/2407.09991
Autor:
He, Fangcheng, Zahed, Ismail
We evaluate the leading exchange corrections to the Helium-4 gravitational form factors (GFFs) upto momenta of the order of the nucleon mass. We use both the K-harmonic method with simple pair nucleon potential, and a Jastrow trial function using the
Externí odkaz:
http://arxiv.org/abs/2406.07412
We compute the one-loop contributions to spin-averaged generalized parton distributions (GPDs) in the proton from pseudoscalar mesons with intermediate octet and decuplet baryon states at nonzero skewness. Our framework is based on nonlocal covariant
Externí odkaz:
http://arxiv.org/abs/2406.03412
Autor:
Wang, Bigeng, He, Fangcheng, Wang, Gen, Draper, Terrence, Liang, Jian, Liu, Keh-Fei, Yang, Yi-Bo
The hadron mass can be obtained through the calculation of the trace of the energy-momentum tensor in the hadron which includes the trace anomaly and sigma terms. The anomaly due to conformal symmetry breaking is believed to be an important ingredien
Externí odkaz:
http://arxiv.org/abs/2401.05496
Autor:
He, Fangcheng, Abramczyk, Michael, Blum, Tom, Izubuchi, Taku, Ohki, Hiroshi, Syritsyn, Sergey
Measurements of nucleon and nuclei Electric Dipole Moments (EDMs) play an important role in probing CP violation and exploring physics beyond the Standard Model. We extract the neutron EDM by measuring the energy shift of the nucleon two-point correl
Externí odkaz:
http://arxiv.org/abs/2311.06106
Autor:
He, Fangcheng, Zahed, Ismail
The gravitational form factors of light nuclei are evaluated up to momenta of the order of the nucleon mass, using the impulse approximation. The nucleon gravitational form factors are reduced non-relativistically, and used to derive the gravitationa
Externí odkaz:
http://arxiv.org/abs/2310.12315
Autor:
Bi, Yujiang, Chen, Ying, Gong, Ming, He, Fangcheng, Liu, Keh-Fei, Liu, Zhaofeng, Yang, Yi-Bo, Zhao, Dian-Jun
Publikováno v:
Phys.Rev.D 108 (2023) 5, 054506
On configurations with 2+1-flavor dynamical domain-wall fermions, we calculate the RI/(S)MOM renormalization constants (RC) of overlap quark bilinears. Hypercubic (HYP) smearing is used to construct the overlap Dirac operator. We investigate the poss
Externí odkaz:
http://arxiv.org/abs/2302.01659
We present the leading order mixed-action effect $\Delta_{\rm mix}\equiv m_{\pi,{\rm vs}}^2-\frac{m_{\pi,{\rm vv}}^2+m_{\pi,{\rm ss}}^2}{2}$ using HISQ, clover or overlap valence fermion actions on gauge ensembles using various sea fermion actions ac
Externí odkaz:
http://arxiv.org/abs/2207.14132
We present a review of recent applications of nonlocal chiral effective theory to hadron structure studies. Starting from a nonlocal meson--baryon effective chiral Lagrangian, we show how the introduction of a correlation function representing the fi
Externí odkaz:
http://arxiv.org/abs/2206.09361