_version_ 1866918051333537792
author Wang, Yijie
Wan, Mengting
Diao, Xinyue
Xiao, Sheng
Qin, Yuhao
Qin, Zhi
Guo, Dong
Si, Dawei
Zhang, Boyuan
Tian, Baiting
Guan, Fenhai
Wu, Qianghua
Wei, Xianglun
Yang, Herun
Ma, Peng
Hu, Rongjiang
Duan, Limin
Duan, Fangfang
Ma, Junbing
Xu, Shiwei
Hu, Qiang
Bai, Zhen
Yang, Yanyun
Wang, Jiansong
Liu, Wenbo
Su, Wanqing
Wei, Xiaobao
Ma, Chunwang
Li, Xinxiang
Wang, Hongwei
Zhang, Yingxun
Warda, Michał
Dobrowolski, Arthur
Nerlo-Pomorska, Bożena
Pomorski, Krzysztof
Ou, Li
Xiao, Zhigang
author_facet Wang, Yijie
Wan, Mengting
Diao, Xinyue
Xiao, Sheng
Qin, Yuhao
Qin, Zhi
Guo, Dong
Si, Dawei
Zhang, Boyuan
Tian, Baiting
Guan, Fenhai
Wu, Qianghua
Wei, Xianglun
Yang, Herun
Ma, Peng
Hu, Rongjiang
Duan, Limin
Duan, Fangfang
Ma, Junbing
Xu, Shiwei
Hu, Qiang
Bai, Zhen
Yang, Yanyun
Wang, Jiansong
Liu, Wenbo
Su, Wanqing
Wei, Xiaobao
Ma, Chunwang
Li, Xinxiang
Wang, Hongwei
Zhang, Yingxun
Warda, Michał
Dobrowolski, Arthur
Nerlo-Pomorska, Bożena
Pomorski, Krzysztof
Ou, Li
Xiao, Zhigang
contents The neutron rich neck zone created in heavy ion reaction is experimentally probed by the production of the $A=3$ isobars. The energy spectra and angular distributions of triton and $^3$He are measured with the CSHINE detector in $^{86}$Kr +$^{208}$Pb reactions at 25 MeV/u. While the energy spectrum of $^{3}$He is harder than that of triton, known as "$^{3}$He-puzzle", the yield ratio $R({\rm t/^3He})$ presents a robust rising trend with the polar angle in laboratory. Using the fission fragments to reconstruct the fission plane, the enhancement of out-plane $R({\rm t/^3He})$ is confirmed in comparison to the in-plane ratios. Transport model simulations reproduce qualitatively the experimental trends, but the quantitative agreement is not achieved. The results demonstrate that a neutron rich neck zone is formed in the reactions. Further studies are called for to understand the clustering and the isospin dynamics related to neck formation.
format Preprint
id arxiv_https___arxiv_org_abs_2311_07095
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Revisit to the yield ratio of triton and $^3$He as an indicator of neutron-rich neck emission
Wang, Yijie
Wan, Mengting
Diao, Xinyue
Xiao, Sheng
Qin, Yuhao
Qin, Zhi
Guo, Dong
Si, Dawei
Zhang, Boyuan
Tian, Baiting
Guan, Fenhai
Wu, Qianghua
Wei, Xianglun
Yang, Herun
Ma, Peng
Hu, Rongjiang
Duan, Limin
Duan, Fangfang
Ma, Junbing
Xu, Shiwei
Hu, Qiang
Bai, Zhen
Yang, Yanyun
Wang, Jiansong
Liu, Wenbo
Su, Wanqing
Wei, Xiaobao
Ma, Chunwang
Li, Xinxiang
Wang, Hongwei
Zhang, Yingxun
Warda, Michał
Dobrowolski, Arthur
Nerlo-Pomorska, Bożena
Pomorski, Krzysztof
Ou, Li
Xiao, Zhigang
Nuclear Experiment
Nuclear Theory
The neutron rich neck zone created in heavy ion reaction is experimentally probed by the production of the $A=3$ isobars. The energy spectra and angular distributions of triton and $^3$He are measured with the CSHINE detector in $^{86}$Kr +$^{208}$Pb reactions at 25 MeV/u. While the energy spectrum of $^{3}$He is harder than that of triton, known as "$^{3}$He-puzzle", the yield ratio $R({\rm t/^3He})$ presents a robust rising trend with the polar angle in laboratory. Using the fission fragments to reconstruct the fission plane, the enhancement of out-plane $R({\rm t/^3He})$ is confirmed in comparison to the in-plane ratios. Transport model simulations reproduce qualitatively the experimental trends, but the quantitative agreement is not achieved. The results demonstrate that a neutron rich neck zone is formed in the reactions. Further studies are called for to understand the clustering and the isospin dynamics related to neck formation.
title Revisit to the yield ratio of triton and $^3$He as an indicator of neutron-rich neck emission
topic Nuclear Experiment
Nuclear Theory
url https://arxiv.org/abs/2311.07095