I will present a rearrangement of the most commonly invoked version of the two-nucleon chiral potential so that the low-lying amplitude zero of the 1S0 partial wave is subsumed at first order in the effective expansion. Adopting other partial waves from the LENPIC interaction (Weinberg power counting), I will show through an ab initio no-core shell model calculation how such modification yields an improved description of ground-state energies and point-proton radii of three test light nuclei, namely 3H, 4He and 6He. I will discuss possible implications of this proposal and point out some future research lines.
https://ijclab.zoom.us/j/95208098766?pwd=cnFWWlZnYkVWZWJWMlU4SFUyUmRyUT09
Meeting ID : 952 0809 8766
Passcode : 668582