Speaker
Brian Colquhoun
(York University)
Description
The likelihood that doubly-heavy tetraquarks will be strong-interaction stable is already suggested by features of heavy baryon phenomenology, and confirmed by recent lattice results. Phenomenological input in this case is possible because the light-quark configurations present in a putative tetraquark state are also present in heavy baryons. There are, however, additional light-quark configurations possible in the field of a heavy quark source that are not accessible to ordinary heavy baryon or meson systems. Among these is the $ud\bar{s}\bar{b}$ channel. We present the results of our first investigations of this channel, including an investigation of whether it might support a strong-interaction stable tetraquark state.
Authors
Brian Colquhoun
(York University)
Anthony Sebastian Francis
(CERN)
Renwick James Hudspith
(Uni Mainz)
Randy Lewis
(York University)
Kim Maltman
(York University)
