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Low-lying states in the unbound {sup 11}N nucleus

Journal Article · · Physical Review. C, Nuclear Physics
; ; ; ; ; ; ; ;  [1]; ; ; ; ; ;  [2];  [3];  [4];  [5]
  1. Centre de Recherches du Cyclotron and Institut de Physique Nucleaire, Universite Catholique de Louvain, B-1348 Louvain-la-Neuve (Belgium)
  2. School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ (United Kingdom)
  3. Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200 (Australia)
  4. Physique Nucleaire Theorique et Physique Mathematique CP229, Universite Libre de Bruxelles, B-1050 Brussels (Belgium)
  5. Laboratory for Nuclear Science, University of Connecticut, Storrs, Connecticut 06269-3046 (United States)
We have investigated the low-energy states of {sup 11}N by the resonant elastic-scattering method in inverse kinematics using a {sup 10}C beam and a (CH{sub 2}){sub n} target at the CYCLONE facility at Louvain-la-Neuve. Recoil protons were detected at laboratory angles {theta}{sub lab}=5.2 deg. -18.3 deg. in a {delta}E-E detector system. The absolute {sup 10}C+p elastic cross-section data were analyzed in the R-matrix framework. We found {sup 11}N to be unbound with respect to proton emission by 1.54{+-}0.02 MeV, with a decay width of 0.83{+-}0.03 MeV. These results are used to calculate the two-proton decay width of the {sup 12}O ground state.
OSTI ID:
20771197
Journal Information:
Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 73; ISSN 0556-2813; ISSN PRVCAN
Country of Publication:
United States
Language:
English

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