论文标题
在高bary型化学势下的charmonium解离
Charmonium dissociation at high baryon chemical potential
论文作者
论文摘要
我们研究了有限的Baryon化学势$μ_b$的热介质中的炭分解。炭联结的状态通过色彩筛选效果和与热区的随机散射在培养基中分离，这些态度分别包括在电势的实际和虚部中。 $ j/ψ$分数在$ c \ bar c $对定义为波封和波函数之间的量子重叠，而$ j/ψ$特征态的波函数由于复杂的电位而随着时间而减小。当$μ_b$与中等温度相比，deybe质量显然会增加。我们考虑$μ_b$依赖性的deybe质量在静态培养基和Bjorken培养基中计算$ j/ψ$存活概率的潜力的实际和虚构部分。 $ j/ψ$生存概率显然通过$μ_b$效应在低温下可用的$ _b $效应降低，而在梁能量扫描实验中产生的培养基效果显然会降低，而在高温下，这种效果并不明显。
We study the charmonium dissociation in the hot medium with finite baryon chemical potential $μ_B$. Charmonium bound states are dissociated in the medium by the color screening effect and the random scatterings with thermal partons, which are included in the real and imaginary parts of the potential respectively. $J/ψ$ fraction in the $c\bar c$ pair defined to be the quantum overlap between the wave package and the wave function of $J/ψ$ eigenstate decreases with time due to the complex potentials. When $μ_B$ is large compared with the medium temperature, the Deybe mass is increased evidently. We consider $μ_B$-dependent Deybe mass in both real and imaginary parts of the potential to calculate the $J/ψ$ survival probability in the static medium and the Bjorken medium. $J/ψ$ survival probability is reduced evidently by the $μ_B$ effect at low temperatures available in the medium produced in Beam Energy Scan experiments, while this effect becomes not apparent at high temperatures.
