Phys.Rev. C 104, 054307 (2021)

R.J.Charity, T.B.Webb, L.G.Sobotka, K.W.Brown

Spectroscopy of ¹⁰N with the invariant-mass method

NUCLEAR REACTIONS ⁹Be(¹³O, ¹⁰N), E=65.4 MeV/nucleon; ⁹Be(⁹C, ¹⁰N), E=68 MeV/nucleon; measured charged particles, p(⁹C)-coin using the High Resolution Array (HiRA) of 14 ΔE-E (Si-CsI(Tl)) telescopes at NSCL-MSU facility; deduced invariant-mass distributions of the p+⁹C produced following knockout of one proton and two neutrons from ¹³O, and from one proton pickup from ⁹C, decay-energy distributions obtained from p+⁹C coincidences in the two experiments, with contamination from p+¹⁰C, p+¹¹C and 2p+⁹C events. ¹⁰N; deduced level, resonance, L-value, J, π, Γ using R-matrix analysis. Comparison of resonance energy and width with theoretical models, and with predictions from complex scaling and Gamow shell model calculations.

doi: 10.1103/PhysRevC.104.054307