Phys.Rev. C 109, L061602 (2024)

M.S.Golovkov, A.A.Bezbakh, A.S.Denikin, R.Wolski, S.G.Belogurov, D.Biare, V.Chudoba, E.M.Gazeeva, A.V.Gorshkov, G.Kaminski, B.R.Khamidullin, S.A.Krupko, B.Mauyey, I.A.Muzalevskii, W.Piatek, A.M.Quynh, R.S.Slepnev, A.Swiercz, P.Szymkiewicz, B.Zalewski

Observation of a positive-parity wave in the low-energy spectrum of ⁷He

NUCLEAR REACTIONS ²H(⁶He, p)⁷He, E=29 MeV/nucleon; measured reaction products, Ep, Ip, En , In, pn-coin; deduced excitation energy spectrum for ⁷He. ⁷He; deduced ground state width, resonances, J, π. The ACCULINNA-2 fragment separator at the U-400M cyclotron (FLNR, JINR).

RADIOACTIVITY ⁷He[from ²H(⁶He, p)⁷He, E=29 MeV/nucleon](n); measured En, In; deduced neutron angular distribution.

doi: 10.1103/PhysRevC.109.L061602