Weak decay of halo nuclei

Abstract

We investigate the weak decay of one-neutron halo nuclei into the proton-core continuum, i.e., beta-delayed proton emission from the halo nucleus using a cluster effective field theory for halo nuclei. On the one hand, we calculate the direct decay into the continuum. On the other hand, we consider the case of resonant final state interactions between the proton and the core. We present our formalism and discuss the application to the decay of ${}^{11}$Be in detail. Moreover, we compare to recent experimental results for the branching ratio and resonance parameters. As another example, we consider the case of ${}^{19}$C and predict the branching ratio for beta-delayed proton emission.

20 pages, 7 figures

References in corpus (6)

• Three-body forces: From cold atoms to nuclei
• Convenient location of a near-threshold proton-emitting resonance in ${}^{11}$B
• Rare $\beta$p decays in light nuclei
• ${\beta }^{-}\mathrm{p}$ and ${\beta }^{-}\alpha$ decay of the ${}^{11}$Be neutron halo ground state
• Single-particle properties of the near-threshold proton-emitting resonance in ${}^{11}$B
• Updated three-body model of ${}^6$He $\beta$ decay into the $\alpha$ + $d$ continuum