论文标题
重型外来hadron的非宗派主义有效野外理论
Nonrelativistic effective field theory for heavy exotic hadrons
论文作者
论文摘要
我们提出了一种有效的野外理论，可以描述两个重夸克的黑龙，而在典型的悬声相对于典型的标尺之间的典型距离没有任何假设。该构建基于非相关性QCD，并以潜在的非权威QCD的强耦合方式启发。我们以随意的量子数量的轻度自由度构建有效的理论，以逆夸克质量扩展中的领先和临近领先顺序构建。因此，我们的结果适用于杂种，四夸克人，双重重型重子和五夸克，为此，我们还以非相关性水平呈现相应的运营商。在领导顺序上，有效理论享有重夸克自旋对称性，并对应于Born-Oppenheimer近似。在接下来的领顺序中，出现了自旋和速度依赖性术语，这些术语会产生在繁重的Quark自旋对称多重上的分裂。伴随的纸张介绍了对双重重桶的混凝土应用。
We propose an effective field theory to describe hadrons with two heavy quarks without any assumption on the typical distance between the heavy quarks with respect to the typical hadronic scale. The construction is based on Non-Relativistic QCD and inspired in the strong coupling regime of Potential Non-Relativistic QCD. We construct the effective theory at leading and next-to-leading order in the inverse heavy-quark mass expansion for arbitrary quantum numbers of the light degrees of freedom. Hence our results hold for hybrids, tetraquarks, double heavy baryons and pentaquarks, for which we also present the corresponding operators at Non-Relativistic level. At leading order, the effective theory enjoys heavy quark spin symmetry and corresponds to the Born-Oppenheimer approximation. At next-to-leading order, spin and velocity dependent terms arise, which produce splittings in the heavy-quark spin symmetry multiplets. A concrete application to double heavy baryons is presented in an accompanying paper.
