Seminarium "Teoria cząstek elementarnych i kosmologia"

I will discuss recent developments regarding new types of hadronsinvolving heavy quarks: hadronic molecules, doubly heavy baryons,stable tetraquarks and others. I will also explain how the discovery ofthe doubly heavy baryon leads to quark-level analogue of nuclear fusion,with energy release per reaction an order of magnitude greater than inordinary fusion.