Artículo
Low-lying single-particle structure of 17C and the N = 14 sub-shell closure
Autor/es | Pereira López, X.
Fernández Domínguez, B. Delaunay, F. Achouri, N. Lynda Orr, N. A. Catford, W. N. Lay Valera, José Antonio Moro Muñoz, Antonio Matías Wheldon, C. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2020 |
Fecha de depósito | 2022-01-21 |
Publicado en |
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Resumen | The first investigation of the single-particle structure of the bound states of 17C, via the d(16C, p) transfer
reaction, has been undertaken. The measured angular distributions confirm the spin-parity assignments
of ... The first investigation of the single-particle structure of the bound states of 17C, via the d(16C, p) transfer reaction, has been undertaken. The measured angular distributions confirm the spin-parity assignments of 1/2+ and 5/2+ for the excited states located at 217 and 335 keV, respectively. The spectroscopic factors deduced for these states exhibit a marked single-particle character, in agreement with shell model and particle-core model calculations, and combined with their near degeneracy in energy provide clear evidence for the absence of the N = 14 sub-shell closure. The very small spectroscopic factor found for the 3/2+ ground state is consistent with theoretical predictions and indicates that the ν1d3/2 strength is carried by unbound states. With a dominant = 0 valence neutron configuration and a very low separation energy, the 1/2+ excited state is a one-neutron halo candidate. |
Agencias financiadoras | Consejo de Instalaciones Científicas y Tecnológicas de UKRI. Reino Unido Agencia Estatal de Investigación. España Ministerio de Economia, Industria y Competitividad (MINECO). España Ministerio de Ciencia, Innovación y Universidades (MICINN). España European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) European Union (UE). H2020 |
Identificador del proyecto | P003885
RYC-2010-06484 RYC-2012-11585 FPA2013-46236-P FIS2017-88410-P RTI2018-098117-B-C21 (UE). H2020 No. 654002 |
Cita | Pereira López, X., Fernández Domínguez, B., Delaunay, F., Achouri, N.L., Orr, N.A., Catford, W.N.,...,Wheldon, C. (2020). Low-lying single-particle structure of 17C and the N = 14 sub-shell closure. Physics Letters B, 811, 135939. |
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