论文标题
a = 8 nuclei:$α{ - }α$散射,$^8 $ He的变形,辐射捕获$^7 $ be和$^7 $ li和x17 boson
Ab initio investigations of A=8 nuclei: $α{-}α$ scattering, deformation in $^8$He, radiative capture of protons on $^7$Be and $^7$Li and the X17 boson
论文作者
论文摘要
我们将无核壳模型应用于连续体(NCSMC),该模型能够以统一的方式在光核中以手性的两种和三核子相互作用来描述绑定状态和未结合状态,这是唯一的输入。 NCSMC可以预测光核的结构和动力学,并通过比较可用的实验数据测试手性核力量的质量。我们讨论了NCSMC的应用到$α{ - }α$散射以及$^8 $ BE的结构,P+$^7 $ BE和P+$^7 $ LI辐射捕获以及在Atomki实验中声称的假设X17 Boson的产生。 $^7 $ BE(p,$γ$)$^8 $ b反应在太阳能核合成和太阳中微子物理学中起着作用,并且已经进行了众多实验研究。我们还强调了我们对最近在Triumf实验研究的富含中子的异国$^8 $ HE的调查,报告了意外的变形。
We apply the No-Core Shell Model with Continuum (NCSMC) that is capable of describing both bound and unbound states in light nuclei in a unified way with chiral two- and three-nucleon interactions as the only input. The NCSMC can predict structure and dynamics of light nuclei and, by comparing to available experimental data, test the quality of chiral nuclear forces. We discuss applications of NCSMC to the $α{-}α$ scattering and the structure of $^8$Be, the p+$^7$Be and p+$^7$Li radiative capture and the production of the hypothetical X17 boson claimed in ATOMKI experiments. The $^7$Be(p,$γ$)$^8$B reaction plays a role in Solar nucleosynthesis and Solar neutrino physics and has been subject of numerous experimental investigations. We also highlight our investigation of the neutron rich exotic $^8$He that has been recently studied experimentally at TRIUMF with an unexpected deformation reported.