论文标题
观察重离子反应中簇簇发射中的同音自由度的乒乓度模态
Observing the Ping-pong Modality of Isospin Degree of Freedom in Cluster Emission from Heavy Ion Reactions
论文作者
论文摘要
同位素分辨光和重簇的两体相关性以$^{86} $ kr+$^{\ rm 208} $ 25 meV/u的$ PB反应进行测量。 $ a = 3 $ isobars，triton和$^3 $ He的产量和动力学变量与早期发出的$ 7 \ le a \ le 14 $的重量分析。尽管Triton和$^3 $的速度光谱在重簇的类型上都表现出缩放行为，而$ {\ rm t/^3he} $的产量比与中子与proton的比率$ n/z相关，后者是后者的ping-pong-pong模式，显示了$ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $ n/z $。残基的$ n/z $保持初始系统值的共同点扩展到重离子反应中的簇发射。讨论了传输模型计算与数据的比较。
Two-body correlations of the isotope-resolved light and heavy clusters are measured in $^{86}$Kr+$^{\rm 208}$Pb reactions at 25 MeV/u. The yield and kinetic variables of the $A=3$ isobars, triton and $^3$He, are analyzed in coincidence with the heavy clusters of $7\le A \le 14$ emitted at the earlier chance. While the velocity spectra of both triton and $^3$He exhibit scaling behavior over the type of the heavy clusters, the yield ratios of ${\rm t/^3He}$ correlate reversely to the neutron-to-proton ratio $N/Z$ of the latter, showing the ping-pong modality of the $N/Z$ of emitted clusters. The commonality that the $N/Z$ of the residues keeps the initial system value is extended to the cluster emission in heavy ion reactions. The comparison of transport model calculations to the data is discussed.
