Exotic spectroscopy in a diquark model with a little help from AdS/QCD

Abstract

Masses of heavy mesons, tetraquarks and pentaquarks computed in a potential model are shown. Tetraquarks are studied as bound states of a diquark and an antidiquark. Pentaquarks are constructed from a series of two-body interactions between the four quarks and the antiquark. New results on $Qs\bar Q \bar q$ and $QQ\bar Q \bar Q$ tetraquarks are also obtained.