4 papers
Two-Pion Exchange Contributions to the Nucleon-Nucleon Interaction from the Roper Resonance
Yang Xiao, Li-Sheng Geng, U. van Kolck
We derive the long-range components of the nucleon-nucleon (NN) two-pion-exchange potential with an intermediate Roper resonance. Leading-order interactions in heavy-baryon chiral…
Charge dependent nucleon-nucleon potentials in covariant chiral effective field theory
Yang Xiao, Jun-Xu Lu, Li-Sheng Geng +1
The charge-dependent nucleon-nucleon () interaction plays a crucial role in understanding the nuclear structure and reaction problems. In this work, we explore the charge-depen…
Relativistic chiral nuclear forces: status and prospects
Jun-Xu Lu, Yang Xiao, Zhi-Wei Liu +1
Understanding nuclear structure, reactions, and the properties of neutron stars from \textit{ab initio} calculations from the nucleon degrees of freedom has always been a primary g…
Reexamination of antinucleon-nucleon interactions in covariant chiral effective field theory
Yang Xiao, Jun-Xu Lu, Li-Sheng Geng
Motivated by the recent progress in developing high-precision relativistic chiral nucleon-nucleon interactions, we study the antinucleon-nucleon interaction in a hybrid approach wh…