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arXiv · 1511.02608

Correlations between the fragmentation modes and light charged particles emission in heavy ion collisions

Yingxun Zhang·Chengshuang Zhou·Jixian Chen·Ning Wang·Kai Zhao·Zhuxia Li
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Abstract

The correlations between the shape of rapidity distribution of the yield of light charged particles and the fragmentation modes in semi-peripheral collisions for $^{70}$Zn+$^{70}$Zn, $^{64}$Zn+$^{64}$Zn and $^{64}$Ni+$^{64}$Ni at the beam energy of 35MeV/nucleon are investigated based on ImQMD05 code. Our studies show there is an interplay between the binary, ternary and multi-fragmentation break-up modes. The binary and ternary break-up modes more prefer to emit light charged particles at middle rapidity and give larger values of $R_{yield}^{mid}$ compared with the multi-fragmentation break-up mode does. The reduced rapidity distribution for the normalized yields of p, d, t, $^3$He, $^4$He and $^6$He and the corresponding values of $R_{yield}^{mid}$ can be used to estimate the probability of multi-fragmentation break-up modes. By comparing to experimental data, our results illustrate that $\ge$40\% of the collisions events belong to the multi-fragmentation break-up mode for the reactions we studied.

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Yingxun Zhang, Chengshuang Zhou, Jixian Chen, Ning Wang, Kai Zhao, Zhuxia Li. 2015-11-09. Correlations between the fragmentation modes and light charged particles emission in heavy ion collisions. https://arxiv.org/abs/1511.02608

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