Semileptonic Decays of Heavy Tetraquarks

Abstract

There exist heavy tetraquark states $QQ\bar{q}\bar{q}$ 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.

7 pages in REVTeX, no figures

References in corpus (2)

• Exotic QQ\qbar\qbar States in QCD
• New Universality of Baryon Isgur--Wise Form Factor in the Large $N_c$ limit

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