Mass and decay angles in the ${\Xi }_c$--${\Xi }_c^{\prime }$ mixing tension: Virtual hybrids and a single-direction criterion

Sanghoon Kim, Gihwan Nam, Jongheon Baek

We compare three definitions of ${\Xi }_c$--${\Xi }_c^{\prime }$ mixing within a constituent-quark model: a spin-component probability angle, a common-source overlap angle, and an SU(3)-breaking mass…