Li

The No Core Shell Model with Continuum (NCSMC) recently predicted an S-wave resonance just above the ⁶He+p decay threshold [1]. The ⁶He(d,n)⁷Li reaction was employed at the Texas A&M Cyclotron Institute to selectively populate this near-threshold resonance and search for its proton decay via the invariant-mass method. The energy and width were measured for the 3/2^- Isobaric analogue state in ⁷Li at 11.295 MeV and a new state above that in energy was found. No evidence of the predicted near-threshold resonance was found, leading to a discussion on the origin of the calculated state within the NCSMC. 

[1] M. Vorabbi, P. Navrátil, S. Quaglioni, and G. Hupin, Be-7 and Li-7 Nuclei within the No-Core Shell Model with Continuum, Phys. Rev. C 100, 024304 (2019).