Break-up channels in muon capture on 3He
Break-up channels in muon capture on 3He
复制标题
3He 上 μ 子捕获的分解通道
DOI：
10.1103/physrevc.90.024001
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发表时间：
2014
影响因子：
3.1
通讯作者：
L. Marcucci
中科院分区：
文献类型：
--
作者：
J. Golak;R. Skibiński;H. Witała;K. Topolnicki;A. Elmeshneb;H. Kamada;A. Nogga;L. Marcucci
在完全包含末态相互作用的条件下，用各种现实势能研究了Mu+2H-&Gt；nu+n+n，Mu+3He-&Gt；nu+3He-&Gt；nu+n+d和Mu+3He-&Gt；nu+n+n+p俘获反应。我们用各种核子-核子势计算了~3He的二体和三体分裂的结果，其中包括AV18势和Urbana~IX三核子势的增强。我们的大部分结果都是基于单核子弱电流算符的。作为第一步，我们对u+2H->；nu+n+n和u+3He->；nu+3H反应的计算结果进行了检验，在一个可比较的框架中得到了理论预测。此外，我们还首次得到了在分裂通道中~3He上的Muon俘获反应总速率的真实估计：n+d和n+n+p通道分别为5441/S和1541/S。我们的结果也与最新的实验数据进行了比较，发现总捕获率大致一致，但未能再现不同的捕获率。
The mu + 2H -> nu + n + n, mu + 3He -> nu + 3H, mu + 3He -> nu + n + d and mu + 3He -> nu + n + n + p capture reactions are studied with various realistic potentials under full inclusion of final state interactions. Our results for the two- and three-body break-up of 3He are calculated with a variety of nucleon-nucleon potentials, among which is the AV18 potential, augmented by the Urbana~IX three-nucleon potential. Most of our results are based on the single nucleon weak current operator. As a first step, we have tested our calculation in the case of the mu + 2H -> nu + n + n and mu + 3He -> nu + 3H reactions, for which theoretical predictions obtained in a comparable framework are available. Additionally, we have been able to obtain for the first time a realistic estimate for the total rates of the muon capture reactions on 3He in the break-up channels: 544 1/s and 154 1/s for the n + d and n + n + p channels, respectively. Our results have also been compared with the most recent experimental data, finding a rough agreement for the total capture rates, but failing to reproduce the differential capture rates.