Recently the LHCb collaboration observed five new narrow excited states in the $\bar{K}\Xi_c$ invariant mass spectrum: the $\Omega_c(3000)$, $\Omega_c(3050)$,$\Omega_c(3065)$, $\Omega_c(3090)$ and $\Omega_c(3119)$. Following this discovery, the Belle Collaboration confirmed four of these five narrow states. A popular interpretation is that the observed $\Omega_c^*$ states correspond to the...
The experimental observation of a number of excited charmed and bottom baryons has significantly enriched heavy-baryon spectroscopy and provides an important opportunity to study the nonperturbative dynamics of QCD. We classify the P-wave singly heavy baryons according to their flavor representations, internal orbital excitations, and the angular momenta of their light degrees of freedom....
We systematically investigate the spectrum and decay properties of charm-strange mesons using a chiral unitary approach that combines Weinberg-Tomozawa interactions with bare $c\bar{s}$ states from the constituent quark model. The S-wave interactions in the (S,I)=(1,0) sector produce a rich $D_{sJ}$ spectrum with $J^P$=$0^+$, $1^+$, $1^-$, $2^-$. In addition to the well-known $DK$ and $D^* K$...
