Probing spin-isospin excitations in proton-rich nuclei via the C11(p,n)N11 reaction
Probing spin-isospin excitations in proton-rich nuclei via the C11(p,n)N11 reaction
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通过 C11(p,n)N11 反应探测富质子核中的自旋-同位旋激发
DOI：
10.1103/physrevc.106.054323
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发表时间：
2022
影响因子：
3.1
通讯作者：
DeNudt, M.
中科院分区：
文献类型：
--
作者：
Schmitt, J.;King, G. B.;Zegers, R. G.;Ayyad, Y.;Bazin, D.;Brown, B. A.;Carls, A.;Chen, J.;Davis, A.;DeNudt, M.
跟踪核性质在远离稳定状态时的演变，是对核模型的一种有价值的测试。在本工作中，使用电荷交换反应来测试从富含质子的不稳定同位素中提取gamow - teller跃迁强度，并将结果值与壳模型和初始计算进行了比较。在国家超导回旋加速器实验室以95 MeV/u的速度进行逆运动学测量。在0.73 MeV和2.86 MeV时的状态值分别为和。这些结果与引入现象学猝灭因子后使用wbp相互作用的壳模型计算和使用无任何缩放的和相互作用的初始变分蒙特卡罗计算一致。此外，该结果与从镜像反应中提取的值一致。该实验证明了在逆运动学中使用探针提取富含质子的原子核的可行性，尽管在未来的实验中改进背景抑制将是重要的。
Tracking the evolution of nuclear properties away from stability serves as a valuable test for nuclear models. In the present work, thecharge-exchange reaction was used to test the extraction ofGamow-Teller transition strengths,, from proton-rich unstable isotopes, and the resultingvalues were compared to shell-model andab initiocalculations. Thereaction was measured in inverse kinematics at 95 MeV/u at the National Superconducting Cyclotron Laboratory. Thevalues to thestate at 0.73 MeV and thestate at 2.86 MeV inwere determined to beand, respectively. These results are consistent with shell-model calculations using thewbpinteraction after introducing a phenomenological quenching factor and withab initiovariational Monte Carlo calculations using theandinteractions without any scaling. Additionally, this result is consistent with thevalues extracted from mirrorandreactions. This experiment demonstrates the feasibility of using theprobe in inverse kinematics to extractfrom proton-rich nuclei, although improved background suppression will be important in future experiments.