par Grigorenko, Leonid;Golovkov, M.S.;Ter-Akopian, Gurgen;Fomichev, Andrey;Oganessian, Yu.Ts.;Gorshkov, V.A.;Krupko, S.A.;Rodin, AM;Sidorchuk, S.I.;Slepnev, R.S.;Stepantsov, S.V.;Wolski, Roman;Pang, Danyang;Chudoba, V.;Korsheninnikov, A.A.;Kuzmin, E.A.;Nikolskii, Yu;Novatskii, B.G.;Stepanov, D.N.;Roussel-Chomaz, Patricia;Mittig, Wolfgang;Ninane, A.;Hanappe, Francis 
;Stuttge, Louise;Yukhimchuk, Arkadiy;Perevozchikov, V.V.;Vinogradov, Yu;Grishechkin, S.K.;Zlatoustovskiy, S.V.
Référence Physics of Particles and Nuclei Letters, 6, 2, page (118-125)
Publication Publié, 2009
;Stuttge, Louise;Yukhimchuk, Arkadiy;Perevozchikov, V.V.;Vinogradov, Yu;Grishechkin, S.K.;Zlatoustovskiy, S.V.Référence Physics of Particles and Nuclei Letters, 6, 2, page (118-125)
Publication Publié, 2009
Article révisé par les pairs
| Résumé : | The low-lying spectrum of 8He was studied in the 3H(6He, p)8He transfer reaction for small center of mass angles. The 0+ ground state (g.s.) of 8He and excited states, 2+ at 3.6-3.9 MeV and (1+) at 5.3-5.5 MeV, were populated with cross sections of 200, 100-250, and 90-125 μb/sr. Some evidence for the excited state at about 7.5 MeV can be found in the data. The possible nature of the near-threshold anomaly above 2.14 MeV in 8He is related to the population of a 1- continuum (soft dipole excitation) with a peak energy value at about 3 MeV. This assumption can probably resolve the problem of a large uncertainty existing in the experimental data on the 8He 2+ state energy. © Pleiades Publishing, Ltd. 2009. |
