Comment on “Tetraquarks as diquark–antidiquark bound systems”
Department of Physics and Astronomy, Institute of Nuclear and Particle Physics, Ohio University, Athens, OH, 45701, USA
* e-mail: email@example.com
Accepted: 27 May 2015
Published online: 24 June 2015
We argue that the calculated masses of heavy tetraquarks obtained by solution of the spin-independent homogeneous Lippmann–Schwinger integral equation in a diquark–antidiquark picture reported by Monemzadeh et al. (Phys Lett B 741:124, 2015), are incorrect. We have reexamined all of the published results and we believe that not only the reported tetraquark masses for states with zero total angular momentum are incorrect, but the reported masses for states with non-zero total angular momentum are quite misleading, because these states cannot be predicted by a spin-independent formalism.
© The Author(s), 2015