论文标题
从$^{11} $从$β$ -Decay开始计算,为p $ {+}^{10} $ be resonance
Ab initio calculation of the $β$-decay from $^{11}$Be to a p${+}^{10}$Be resonance
论文作者
论文摘要
异国$β$删除的质子发射以$^{11} $计算的是使用手性的两核力和三核力量的第一原理。为了调查[PRL 123,082501(2019)]中测得的出乎意料的大型分支比率,我们使用无核心壳模型计算了$^{11} $ b中提出的$(1/2^+,1/2)$ proton共振。该计算有助于解决这种增强是由未知的黑暗衰减模式还是未观察到的质子共振引起的。我们报告了$ b_p =(1.3 \ pm0.5)\ times10^{ - 6} $的分支比率,这表明其出乎意料的很大值是由$^{11} $ b中未观察到的质子共振引起的。
The exotic $β$-delayed proton emission is calculated in $^{11}$Be from first principles using chiral two- and three-nucleon forces. To investigate the unexpectedly-large branching ratio measured in [PRL 123, 082501 (2019)] we calculate the proposed $(1/2^+,1/2)$ proton resonance in $^{11}$B using the no-core shell model with continuum. This calculation helps to address whether this enhancement is caused by unknown dark decay modes or an unobserved proton resonance. We report a branching ratio of $b_p = (1.3\pm0.5)\times10^{-6}$, suggesting that its unexpectedly-large value is caused by an unobserved proton resonance in $^{11}$B.