Abstract
We combine lattice QCD results for the potential of two static antiquarks in the presence of two quarks of finite mass and quark model techniques to study possible existing tetraquarks within the Born-Oppenheimer approximation. While there is strong indication for a bound four-quark state for , i.e., isospin , which is stable with respect to QCD, i.e., can only decay weakly, we find clear evidence against the existence of corresponding tetraquarks with , i.e., isospin , , and .
- Received 13 May 2015
DOI:https://doi.org/10.1103/PhysRevD.92.014507
© 2015 American Physical Society