Artículo
Observation of narrow states in nuclei beyond the proton drip line: 15F and 16Ne
Autor/es | Mukha, I.
Timofeyuk, N. K. Summerer, K. Acosta, Luis González Álvarez, Marcos Aurelio Casarejos, E. Espino Navas, José Manuel Gómez Camacho, Joaquín José Woods, P. J. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2009 |
Fecha de depósito | 2017-04-26 |
Publicado en |
|
Resumen | Two high-lying states in 15F and 16Ne, unbound with respect to one-proton (1p) and two-proton (2p) emissions, have been observed in the fragmentation of 17Ne at intermediate energies. They undergo mainly sequential emissions ... Two high-lying states in 15F and 16Ne, unbound with respect to one-proton (1p) and two-proton (2p) emissions, have been observed in the fragmentation of 17Ne at intermediate energies. They undergo mainly sequential emissions of protons via intermediate states in 14O and 15F and have decay energies of 7.8(2) and 7.6(2) MeV, respectively. The widths of the newly observed states in 15F and 16Ne are much smaller than the Wigner limits for single-particle configurations, of 0.4(4) and 0.8(+8-4) MeV, respectively. In addition, narrow widths of 0.2(2) MeV are derived for two other high-lying states in 15F with Qp of 4.9 and 6.4 MeV, which match features of the recently predicted narrow odd-parity 15F states with two valence protons in the sd shell. All energies and widths have been obtained by analyzing angular correlations of the decay products, p-p-14O and p-p-13N, whose trajectories have been measured by a tracking technique with silicon microstrip detectors. |
Agencias financiadoras | European Nuclear Structure Integrated Infrastructure Initiative (EURONS) |
Identificador del proyecto | FPA2006-13807-C02-01
EC-I3 |
Cita | Mukha, I., Timofeyuk, N.K., Summerer, K., Acosta, L., González Álvarez, M.A., Casarejos, E.,...,Woods, P.J. (2009). Observation of narrow states in nuclei beyond the proton drip line: 15F and 16Ne. Physical Review C - Nuclear Physics, 79 (6), 061301-1-061301-5. |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
Observation of narrow.pdf | 614.3Kb | [PDF] | Ver/ | |