We calculate the octet baryon magnetic moments in covariant baryon chiral perturbation theory with the extended-on-mass-shell renormalization scheme up to next-to-next-to-leading order. At this order, there are nine low-energy constants, which cannot be uniquely determined by the seven experimental data alone. We propose two strategies to circumvent this problem. First, we assume...
Liang 5 De-Min Li 4 Jun-Xu Lu 0 Vladymir K. Magas 6 Juan Nieves 3 Angels Ramos 6 Luis Roca 7 En Wang 4 Ju-Jun Xie 1 0 School of Physics and Nuclear Energy Engineering and International Research Center for
Lately, the LHCb Collaboration reported the discovery of two new states in the $$B^+\rightarrow D^+D^- K^+$$ decay, i.e., $$X_0(2866)$$ and $$X_1(2904)$$ . In the present work, we study whether these states can be understood as $${\bar{D}}^*K^*$$ molecules from the perspective of their two-body strong decays into $$D^-K^+$$ via triangle diagrams and three-body decays into $${\bar...
The recent observation of X(5568) by the D0 Collaboration has aroused a lot of interest both theoretically and experimentally. In the present work, we first point out that X(5568) and \(D_{s0}^*(2317)\) cannot simultaneously be of molecular nature, from the perspective of heavy-quark symmetry and chiral symmetry, based on a previous study of the lattice QCD scattering lengths of...
