Phys. Rev. Lett. 92, 232502 (2004) [4 pages]Analog States of 7He Observed via the 6He(p,n) ReactionReceived 18 December 2003; published 11 June 2004 Isobaric analog states of 7He have been investigated by a novel technique involving the observation of the resonant yield of neutrons from the 6He(p,n) reaction in coincidence with γ rays from the decay of the (0+,T=1) state in 6Li. The γ rays provide a clean signature for the isospin-conserving neutron decay of the low-lying isobaric analog resonances. It is conclusively shown that the analog of the recently observed low-lying spin-orbit partner of the 7He ground state does not exist. Evidence is presented that this state lies at much higher energies, in agreement with microscopic calculations. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.232502
DOI:
10.1103/PhysRevLett.92.232502
PACS:
25.60.–t, 25.40.Kv, 27.20.+n
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