论文标题
Au+au碰撞中的高级质子累积物，$ \ sqrt {s _ {\ rm nn}} $ = 3 GEV
Higher-order Proton Cumulants in Au+Au Collisions at $\sqrt{s_{\rm NN}}$ = 3 GeV from RHIC-STAR
论文作者
论文摘要
在这些程序中，我们介绍了在$ \ sqrt {s _ {\ rm nn}} $ = 3.0 GEV中以固定目标（fxt）运行的固定目标（fxt）的质子多数分布的高阶累积物。累积比率作为中心性和碰撞能量的函数。质子累积比C4/C2与BARYON数量保护驱动的波动一致，并表明以规际相互作用为主的能量状态。这些数据表明，如果在重型离子碰撞中产生，QCD临界点可能存在于3 GEV的能量。
In these proceedings, we present the higher-order cumulants of proton multiplicity distributions of the fixed-target (FXT) run in Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 3.0 GeV. The cumulant ratios are presented as a function of centrality and collision energy. The proton cumulant ratio C4/C2 is consistent with fluctuations driven by baryon number conservation and indicates an energy regime dominated by hadronic interactions. These data imply that the QCD critical point could exist at energies higher than 3 GeV if created in heavy-ion collisions.
