论文标题
NJL模型中重型diquark和轻夸克的强调
Hadronization of heavy diquark and light quark within NJL-Model
论文作者
论文摘要
我们提出了双重重型重子的路径综合性强化。巴里昂中的两个重夸克被近似为标量或轴向矢量diquark，由重型diquark有效理论描述。 Gluon动力学由重型diquark和Light Quarks的NJL模型相互作用表示，这在夸克和diquark磁场被整合后导致了Baryon场的有效作用。这种有效的重型重鸡的有效动作包括电磁和电磁相互作用，以及与轻媒体的相互作用。我们还验证了巴属水平的沃德 - 塔卡哈西身份，获得弱转换的伊斯古尔函数，并计算偶发性重的baryon和pion的强耦合常数。还进行了数值研究。
We present a path-integral hadronization for doubly heavy baryons. The two heavy quarks in the baryon are approximated as a scalar or axial-vector diquark described by a heavy diquark effective theory. The gluon dynamics are represented by a NJL-Model interaction for the heavy diquarks and light quarks, which leads to an effective action of the baryon fields after the quark and diquark fields are integrated out. This effective action for doubly heavy baryon includes the electromagnetic and electroweak interactions, as well as the interaction with light mesons. We also verify the Ward-Takahashi identity at the baryon level, obtain the Isgur-Wise function for weak transitions, and calculate the strong coupling constant of the doubly heavy baryon and pion. Numerical studies are also performed.
