论文标题
Quarkonium在有限温度下的自旋依赖性夸克反夸克电势
Quarkonium in a spin dependent quark anti-quark potential at finite temperature
论文作者
论文摘要
我们在有限温度下在非相关主义的A型旋转依赖性模型中研究$ c \ bar {c} $和$ b \ bar {b} $系统的状态。电位通过参数$μ$结合了色彩筛选效果。参数$μ$以及强耦合常数$α_s$和字符串张力$σ$取决于温度，其值适用于在不同温度值下可用的夸克反夸克电势的晶格数据。应用电位包括自旋旋转，自旋轨道，张量相互作用，使我们能够研究Quarkonia的自旋单线和三重态。通过求解非相关的schr {Ö} dinger方程，我们在不同温度下发现夸克状态的光谱，还确定了每个状态溶解的临界温度。我们发现，临界温度随轨道和径向激发而降低，但是，对于旋转单线和三重态状态而言，临界温度保持不变。
We study the states of $c\bar{c}$ and $b\bar{b}$ system in a non-relativistic a spin dependent potential model at finite temperature. The potential incorporate color screening effect through a parameter $μ$. The parameter $μ$ along with strong coupling constant $α_s$ and string tension $σ$ are taken temperature dependent and their values are fitted to the Lattice data of quark anti-quark potential available at different values of temperature. The applied potential include spin-spin, spin-orbital, tensor interactions which allow us to study spin singlet and triplet states of quarkonia. By solving non-relativistic Schr{ö}dinger equation, we find the spectrum of quarkonium states at different temperature and also determine the critical temperature at which each state is dissolved. We find the critical temperature is decreased with orbital and radial excitations, however, for spin singlet and triplet states it remains same.
