论文标题
$ \ sqrt {s_ {nn}} = 3 $ GEV的Au-au碰撞中的光核产生的不同合并来源
Different Coalescence Sources of Light Nuclei Production in Au-Au Collisions at $\sqrt{s_{NN}}=3$ GeV
论文作者
论文摘要
我们研究了$ \ sqrt {s_ {nn}} = 3 $ gev，在中等差异的Au-au碰撞中的聚核的产生。我们分别得出了两个物体，三个物体和四个核子的动量分布的分析公式，分别融合到光核中。我们自然地解释了Deuteron（$ D $），Triton（$ T $），氦3（$^3 $ HE）和Helium-4（$^4 $ HE）的横向动量光谱。我们重现了收益速度迅速密度和平均横向动量的数据，为$ d $，$ t $，$^3 $ He和$^4 $ He。我们以$ t $，$^3 $ He和$^4 $ He的作品中的不同结合来源提供了一定的贡献。我们发现，除了核子结合外，核子$+$ $ nucleus coleScence和nucleus $+$ $ $ nucleus coleScencen可能在$ \ sqrt {s_ {nn}} = 3 $ gev的Au-au碰撞中在光核产生中起必要的作用。
We study the production of light nuclei in the coalescence mechanism in Au-Au collisions at midrapidity at $\sqrt{s_{NN}}=3$ GeV. We derive analytic formulas of momentum distributions of two bodies, three bodies and four nucleons coalescing into light nuclei, respectively. We naturally explain the transverse momentum spectra of the deuteron ($d$), triton ($t$), helium-3 ($^3$He) and helium-4 ($^4$He). We reproduce the data of yield rapidity densities and averaged transverse momenta of $d$, $t$, $^3$He and $^4$He. We give proportions of contributions from different coalescence sources for $t$, $^3$He and $^4$He in their productions. We find that besides nucleon coalescence, nucleon$+$nucleus coalescence and nucleus$+$nucleus coalescence may play requisite roles in light nuclei production in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV.
