发表机构
University of Tehran; Dogus University; Bolu Abant İzzet Baysal University; Kocaeli University（德黑兰大学; 多乌斯大学; 博卢阿邦特伊泽特巴耶斯尔大学; 科贾埃利大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
研究热密介质对\(B_s^*\)和\(B^*\)多重态影响，用QCD求和规则分析其质量和衰变常数，发现质量抗性强，衰变常数敏感，重子密度主导响应，还揭示粒子 - 反粒子不对称，为相关重离子碰撞计划提供理论基础。
AI 中文摘要
我们利用有限温度和密度下的QCD求和规则，对\(B_s^*(5415)\)和\(B^*(5325)\)多重态的介质内质量和衰变常数进行了广泛分析，包括粒子和反粒子。算符乘积展开包含了夸克、胶子和混合凝聚态的完整温度和密度依赖贡献。计算奇异（\(B_s^{*0}\)，\(\bar{B}_s^{*0}\)）、带电（\(B^{*\pm}\)）和中性（\(B^{*0}\)，\(\bar{B}^{*0}\)）双重态性质，使我们能够研究味对称破缺、奇异数和重夸克解耦对介质中重味矢量介子的影响。我们的结果表明，整个多重态的质量对介质具有显著抗性：即使在\(T = T_c\)和\(n = 5n_0\)（这里探索的极端条件）下，没有状态损失超过其真空值的\(\sim 13\%\)。衰变常数则更为敏感，在同一点损失高达\(\sim 78\%\)。重子密度明显主导介质响应，而温度直到系统接近去禁闭交叉时才起次要作用。在零密度下，每个状态损失几乎相同比例的质量和衰变常数：质量位移在\(-(0.5 - 1.1)\%\)之间，衰变常数位移在\(-(3.9 - 5.3)\%\)之间，无论电荷或味如何，因此仅温度无法区分粒子与其反粒子。在有限重子密度下，出现明显的粒子 - 反粒子不对称：在\(T = 0\)和\(n = 5n_0\)时，\(\bar{B}^{*0}\)质量下降\(12.9\%\)，而\(B^{*0}\)质量仅位移\(6.1\%\)，近七个百分点的差距完全由矢量自能驱动。这为未来RHIC、LHC、FAIR和NICA的重离子碰撞计划提供了理论基础。
英文摘要
We present an extensive analysis of the in-medium masses and decay constants of the $B_s^*(5415)$ and $B^*(5325)$ multiplets, including both particles and antiparticles, using QCD sum rules at finite temperature and density. The OPE incorporates the full temperature- and density-dependent contributions from the quark, gluon, and mixed condensates. Computing the strange ($B_s^{*0}$, $\bar{B}_s^{*0}$), charged ($B^{*\pm}$), and neutral ($B^{*0}$, $\bar{B}^{*0}$) doublet properties allows us to study the effects of flavor symmetry breaking, strangeness, and heavy-quark decoupling on the beauty vector mesons in the medium. Our results indicate that the mass is remarkably resistant to the medium across the entire multiplet: no state loses more than $\sim 13\%$ of its vacuum value, even at $T = T_c$ and $n = 5n_0$, the extreme conditions explored here. The decay constant is far more sensitive, losing up to $\sim 78\%$ at the same point. Baryon density clearly dominates the medium response, while temperature plays a secondary role until the system approaches the deconfinement crossover. At zero density, every state loses almost the same fraction of its mass and decay constant: mass shifts lie between $-(0.5$-$1.1)\%$ and decay-constant shifts between $-(3.9$-$5.3)\%$, regardless of charge or flavor, so temperature alone does not distinguish a particle from its antiparticle. At finite baryon density, a clear particle-antiparticle asymmetry emerges: at $T = 0$ and $n = 5n_0$, the $\bar{B}^{*0}$ mass decreases by $12.9\%$, whereas the $B^{*0}$ mass shifts by only $6.1\%$, a gap of nearly seven percentage points driven entirely by the vector self-energy. This provides a theoretical basis for the future heavy-ion collision program at RHIC, LHC, FAIR, and NICA.
Comments19 pages, 16 figures, 7 tables
