Analog states of 7He observed via the 6He(p,n) reaction. Academic Article uri icon

abstract

  • 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 gamma rays from the decay of the (0(+),T=1) state in 6Li. The gamma 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.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Rogachev, G. V., Boutachkov, P., Aprahamian, A., Becchetti, F. D., Bychowski, J. P., Chen, Y., ... Whr, A.

citation count

  • 41

complete list of authors

  • Rogachev, GV||Boutachkov, P||Aprahamian, A||Becchetti, FD||Bychowski, JP||Chen, Y||Chubarian, G||DeYoung, PA||Goldberg, VZ||Kolata, JJ||Lamm, LO||Peaslee, GF||Quinn, M||Skorodumov, BB||Wöhr, A

publication date

  • June 2004