论文标题
$ \ sqrt {s_ {nn}} $ = 200 GEV
Hyperon productions from Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV
论文作者
论文摘要
我们评估了Hyperon，$λ，ξ，ω$和$ k $ MESON的中心性依赖性在$ \ sqrt {s_ {nn}} $ = 200 GEV使用速率方程式和与实验观察值相比。以中心性观察到每个参与核的产量增加。在中央碰撞的情况下，还观察到与单次击球相比，多分类生产的速率更高。使用速率方程或动量集成的玻尔兹曼方程，我们通过显微镜进行了归一化的产量，然后将其归一化，以获得产量比（$ h_s+\ bar {h_s} $）/（$π^++ππ^ - $）在各个核心处。我们还评估了各个中心的每个参与者的抗超子的相对产率，并与RHIC的观察结果进行了比较。与$λ$相比，在大多数中央碰撞中实现了$ξ$的收益率的增加。我们发现在非常接近$ t_c $和$λ的温度下，多奇怪的$ξ，ω$冻结，k $稍后再做。
We evaluate centrality dependence of hyperon, $Λ, Ξ, Ω$ and $K$ meson yields from Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV using rate equation and compare with experimental observations. An increase in the yield per participating nucleon is observed with centrality. Higher rate of multistrange productions compared to single-strange are also observed in case of central collisions. Using rate equation or momentum integrated Boltzmann equation we discuss the yield microscopically which are then normalised with thermal pions to get the yield ratio,($H_s+\bar{H_s}$)/($π^++π^-$) at various centralities. We have also evaluated the relative yield of anti hyperons per participant at various centralities and compared with observations made at RHIC. Increase in the rate of $Ξ$ yield compared to $Λ$ is realised in most central collisions. We find multi strange $Ξ,Ω$ freeze-out at a temperature very close to $T_c$ and $Λ, K$ do little later.
