论文标题
部分可观测时空混沌系统的无模型预测
Possible origin of HADES data on proton number fluctuations in Au+Au collisions
论文作者
论文摘要
$ \ sqrt {s _ {\ rm nn}}} = 2.4 $ GEV表明，在AU+AU中央碰撞中，Hades合作的最新数据= 2.4 $ GEV表明，在额外差异周围的一个速度迅速的一个单位中，大型质子数波动。由于重子之间的强烈吸引人的相互作用，这可能是关键现象的签名。我们研究了另一种假设，即这些大波动是由裸质子数量的事件波动引起的，并且没有假定这些质子之间的相互作用。使用二项式接受程序计算了区域内$Δy$ $Δy$ $ΔY$的质子数波动$Δy$。该过程假设质子的独立（不相关）排放，并且似乎与Hades数据一致。为了检查此简单图片，我们建议在非重叠的速度间隔中计算质子多重性之间的相关性$Δy_1$和$Δy_2$放置在$Δy= 1 $的内部。
Recent data of the HADES Collaboration in Au+Au central collisions at $\sqrt{s_{\rm NN}}=2.4$ GeV indicate large proton number fluctuations inside one unit of rapidity around midrapidity. This can be a signature of critical phenomena due to the strong attractive interactions between baryons. We study an alternative hypothesis that these large fluctuations are caused by the event-by-event fluctuations of the number of bare protons, and no interactions between these protons are assumed. The proton number fluctuations in five symmetric rapidity intervals $Δy$ inside the region $ΔY=1$ are calculated using the binomial acceptance procedure. This procedure assumes the independent (uncorrelated) emission of protons, and it appears to be in agreement with the HADES data. To check this simple picture we suggest to calculate the correlation between proton multiplicities in non-overlapping rapidity intervals $Δy_1$ and $Δy_2$ placed inside $ΔY=1$.
