论文标题
在密集介质中对$ z（4430）$的参数进行修改
Modifications on parameters of $Z(4430)$ in a dense medium
论文作者
论文摘要
类似charmonium的共鸣$ z_c（3900）$及其激动的状态$ z（4430）$是对双重重型四夸克的严重候选者之一。在真空中和具有有限密度的介质中与这些状态相关的不同参数的计算非常重要。这样的调查有助于我们阐明其性质，内部夸克 - 格鲁恩组织和量子数。在此方面，我们将以前的分析扩展到基态$ z_c（3900）$上，以调查对激发$ z（4430）$ state的不同参数的介质修改。特别是，我们在密度方面计算了$ z（4430）$的质量，矢量自我能源和电流耦合，最大密度可与大型中子恒星的密度相当。获得的结果可能有助于实验组，以研究外来状态在较高密度下的行为。
The charmonium-like resonance $ Z_c(3900) $ and its excited state $ Z(4430) $ are among the particles that are serious candidates for double heavy tetraquarks. Calculations of different parameters associated with these states both in the vacuum and the medium with finite density are of great importance. Such investigations help us clarify their nature, internal quark-gluon organization and quantum numbers. In this accordance, we extend our previous analyses on the ground state $ Z_c(3900) $ to investigate the medium modifications on different parameters of the excited $ Z(4430) $ state. In particular, we calculate the mass, vector self-energy and current coupling of $ Z(4430) $ in terms of density, up to a density comparable to the density of the cores of massive neutron stars. The obtained results may help experimental groups aiming to study the behavior of exotic states at higher densities.
