Search For C-21 And Constraints On C-22
Document Type
Article
Publication Date
7-2013
Publication Source
Nuclear Physics A
Volume Number
909
First Page
69
Last Page
78
Publisher
Elsevier Science BV
ISSN
0375-9474
Abstract
A search for the neutron-unbound nucleus 21C was performed via the single-proton removal reaction from a beam of 22N at 68 MeV/u. Neutrons were detected with the Modular Neutron Array (MoNA) in coincidence with 20C fragments. No evidence for a low-lying state was found, and the reconstructed decay-energy spectrum could be described with an s-wave line shape with a scattering length limit of |as|22C is bound by less than 70 keV.
Keywords
Nuclear reactions, View the MathML source, E=68 MeV/nucleon; measured, En, In(θ), E(20C fragment), I(20C fragment, θ); 21, 22C calculated, double neutron halo nucleus low-lying levels, J, π, spectrometric factor using shell model, Goldhaber model with friction term; 21C deduced, non-existence of bound state; View the MathML source deduced, scattering length
Recommended Citation
Mosby, S., N. S. Badger, T. Baumann, D. Bazin, M. Bennett, J. Brown, G. Christian, Paul A. DeYoung, J. E. Finck, M. Gardner, J. D. Hinnefeld, E. A. Hook, E. M. Lunderberg, B. Luther, D. A. Meyer, M. Mosby, Graham F. Peaslee, W. F. Rogers, J. K. Smith, J. Snyder, A. Spyrou, M. J. Strongman and M. Thoennessen. "Search for C-21 and Constraints on C-22." Nuclear Physics A 909 (2013). http://dx.doi.org/10.1016/j.nuclphysa.2013.04.004
