235 citations · 1.1k across the 47 of their papers we have counts for
6 papers · 1 filter
Leading order relativistic hyperon-nucleon interactions in chiral effective field theory
Kai-Wen Li, Xiu-Lei Ren, Li-Sheng Geng +1
We apply a recently proposed covariant power counting in nucleon-nucleon interactions to study strangeness interactions in chiral effective field theory. At leading…
Leading order relativistic chiral nucleon-nucleon interaction
Xiu-Lei Ren, Kai-Wen Li, Li-Sheng Geng +3
Motivated by the successes of relativistic theories in studies of atomic/molecular and nuclear systems and the need for a relativistic chiral force in relativistic nuclear structur…
-- interactions in finite volume and the
Jun-Xu Lu, Xiu-Lei Ren, Li-Sheng Geng
The recent observation of by the D0 Collaboration has aroused a lot of interest both theoretically and experimentally. In the present work, we first point out that $X(556…
Consistency between SU(3) and SU(2) chiral perturbation theory for the nucleon mass
Xiu-Lei Ren, L. Alvarez-Ruso, Li-Sheng Geng +3
Treating the strange quark mass as a heavy scale compared to the light quark mass, we perform a matching of the nucleon mass in the SU(3) sector to the two-flavor case in covariant…
Strangeness hyperon-nucleon scattering in covariant chiral effective field theory
Kai-Wen Li, Xiu-Lei Ren, Li-Sheng Geng +1
Motivated by the successes of covariant baryon chiral perturbation theory in one-baryon systems and in heavy-light systems, we study relevance of relativistic effects in hyperon-nu…
Octet baryon masses and sigma terms in covariant baryon chiral perturbation theory
Xiu-Lei Ren, Li-Sheng Geng, Jie Meng
We report on a recent study of the ground-state octet baryon masses and sigma terms in covariant baryon chiral perturbation theory with the extended-on-mass-shell scheme up to next…