Lifetime and dominant decay modes of the tetraquark with double beauty $bb\bar{u}\bar{d}$

Abstract

We briefly review the stability of the $QQ\bar{q}\bar{q}$-type of tetraquarks with two heavy quarks and two light antiquarks. We present the first comprehensive estimate of the lifetime and leading decay modes of the exotic meson $bb\bar{u}\bar{d}$ with double beauty.

Comments: 6 pages, 1 fig., Proceedings of the 18th International Conference on Hadron Spectroscopy and Structure (HADRON2019), Guilin, China, 16-21 Aug. 2019. Talk given by J.-M.~Richard