Halo Effects in the Low-energy Scattering of $^{15}$C with Heavy Targets
- Ovejas, J.D.
- Knyazev, A.
- Martel, I.
- Tengblad, O.
- Borge, M.J.G.
- Cederkäll, J.
- Keeley, N.
- Rusek, K.
- García-Ramos, C.
- Acosta, L.A.
- Arokiaraj, A.A.
- Babo, M.
- Cap, T.
- Ceylan, N.
- de Angelis, G.
- Di Pietro, A.
- Fernández, J.P.
- Figuera, P.
- Fraile, L.
- Fynbo, H.
- Galaviz, D.
- Jensen, J.H.
- Jonson, B.
- Kotak, R.
- Kurtukian, T.
- Madurga, M.
- Marquínez-Durán, G.
- Munch, M.
- Orduz, A.K.
- Honório, R.
- Pakou, A.
- Pérez, T.
- Peralta, L.
- Perea, A.
- Raabe, R.
- Renaud, M.
- Riisager, K.
- Sánchez-Benítez, A.M.
- Sánchez-Segovia, J.
- Sgouros, O.
- Soukeras, V.
- Teubig, P.
- Viñals, S.
- Wolińska-Cichocka, M.
- Wolski, R.
- Yang, J.
DOIAbstract
International audienceThe neutron-rich carbon isotope 15C was postulated to be a halo nucleus (Sn = 1215 keV, S2n = 9395 keV) according to different high-energy experiments. If so, it would be the only halo nucleus exhibiting a “pure” s-wave structure of the ground state. At low collision energies, the effect of this halo structure should manifest as a strong absorption pattern in the angular distribution of the elastic cross section, with a total suppression of the nuclear rainbow due to the large neutron transfer and breakup probabilities, enhanced by the halo configuration. The IS619 experiment, carried out at the HIE-ISOLDE facility at CERN (Switzerland), is the first dynamical study of this nucleus at energies around the Coulomb barrie...