Zb tetraquark channel from lattice QCD and Born-Oppenheimer approximation

S. Prelovsek, H. Bahtiyar, J. Petkovic

Two $Z_b$ hadrons with exotic quark structure $\bar{b}b\bar{d}u$ were discovered by Belle experiment. We present a lattice QCD study of the $\bar{b}b\bar{d}u$ system in the approximati…