标题： 重四夸克的半轻子衰变 显示英文标题

标题： Semileptonic Decays of Heavy Tetraquarks

摘要： 存在重夸克极限中的重四夸克态$QQ \bar q \bar q$。这些态相对于强相互作用是稳定的，因此必须弱衰变。表明半轻子衰变依赖于一个单个的Isgur--Wise形式因子，该形式因子可以用控制$Qqq$和$QQq$重子半轻子衰变的Isgur--Wise形式因子来表示。 显示英文摘要

摘要： 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.