论文标题
热培养基对新观察到的$ z_ {cs}（3985）$ resonance及其$ b $ -partner的影响
Impact of a thermal medium on newly observed $Z_{cs}(3985)$ resonance and its $ b $-partner
论文作者
论文摘要
由于最近发现的奇怪的隐藏式异国情调状态$ z_ {cs}（3985）$的动机，我们研究了对这种异国情调状态的可能解释，无论是$ t = 0 $和$ t \ t \ neq 0 $。我们通过分析计算有限温度近似值的自旋 - 含量$ j^{pc} = 1^{+ - } $的共振的质量和中等耦合常数，最高为热算子维度的第六阶，包括非扰动贡献。提取热质量和中电流耦合常数总和规则，确定了$ z_ {cs}}（3985）$状态的属性的修改。作为一个产品，也估计了$ z_ {cs}（3985）$的底部合作伙伴的HADRONIC参数。此外，搜索温度对隐藏链中的介子$ z_ {cs}（3985）$的耐热参数的搜索和底部合作伙伴使我们了解了QCD中的相变，手性对称性破坏和热密密度物质的属性。
Motivated by the very recent discovery of the strange hidden-charm exotic state $Z_{cs}(3985)$ by the BESIII Collaboration, we study possible interpretation of this exotic state both at $ T= 0 $ and $ T\neq 0 $. We analytically compute the mass and meson-current coupling constant of this resonance with spin-parity $ J^{PC} = 1^{+-}$ at finite temperature approximation up to sixth order of the thermal operator dimension including non-perturbative contributions. Extracting thermal mass and meson-current coupling constant sum rules, the modifications on properties of $Z_{cs}(3985)$ state in hot medium is determined. As a by product, the hadronic parameters of the bottom partner of $Z_{cs}(3985)$ is estimated as well. Moreover the search of temperature effects on the hadronic parameters of hidden-charm meson $Z_{cs}(3985)$ and the bottom partner make us understand the phase transitions, chiral symmetry breaking and the properties of hot-dense matter in QCD.
