Semileptonic Decays of Heavy Tetraquarks

الأصل · EN

There exist heavy tetraquark states QQ q q in the heavy quark limit. These states are stable with respect to strong interactions and hence must decay weakly. It is shown that the semileptonic decay depends on a single Isgur--Wise form factor, which can be expressed in term of the Isgur--Wise form factors which govern the semileptonic decays of the Qqq and QQq baryons.