Published May 23, 2012 | Version v1
Journal article

New structures in the continuum of 15C populated by two-neutron transfer

  • 1. INFN, Laboratori Nazionali del Sud, Via S. Sofia 62, 95125 Catania (Italy)
  • 2. Dipartimento di Fisica e Astronomia, Università di Catania, Via S. Sofia 64, 95125 Catania (Italy)
  • 3. Dipartimento di Fisica, Università di Pisa, Largo Pontecorvo 3, 56127 Pisa (Italy)
  • 4. INFN, Sezione di Pisa, Largo Pontecorvo 3, 56127, Pisa (Italy)
  • 5. INFN, Sezione di Catania, Via S. Sofia 64, 95125 Catania (Italy)
  • 6. Instituto de Física Corpuscular, CSIC, Universidad de Valencia, 46071 Valencia (Spain)
  • 7. Instituto de Física, Universidade de São Paulo, C.P. 66318, 05315-970 São Paulo, SP (Brazil)

Description

The 13C(18O, 16O)15C reaction has been studied at 84 MeV incident energy. The ejectiles have been detected at forward angles and 15C excitation energy spectra have been obtained up to about 20 MeV. Several known bound and resonant states of 15C have been identified together with two unknown structures at 10.5 MeV (FWHM=2.5 MeV) and 13.6 MeV (FWHM=2.5 MeV). Calculations based on the removal of two uncorrelated neutrons from the projectile describe a significant part of the continuum observed in the energy spectra. In particular the structure at 10.5 MeV is dominated by a resonance of 15C near the 13C+n+n threshold. Similar structures are found in nearby nuclei such as 14C and 11Be.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2012.04.012

Additional details

Identifiers

DOI
10.1016/j.physletb.2012.04.012;
PII
S0370-2693(12)00404-2;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
711
Journal Issue
5
Journal Page Range
p. 347-352
ISSN
0370-2693
CODEN
PYLBAJ

Optional Information

Copyright
Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.