Observation of a low-lying neutron-unbound state in 19C
| Autor: | Thoennessen, M., Mosby, S., Badger, N. S., Baumann, T., Bazin, D., Bennett, M., Brown, J., Christian, G., DeYoung, P. A., Finck, J. E., Gardner, M., Hook, E. A., Luther, B., Meyer, D. A., Mosby, M., Rogers, W. F., Smith, J. K., Spyrou, A., Strongman, M. J. |
|---|---|
| Rok vydání: | 2013 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.nuclphysa.2013.05.001 |
| Popis: | Proton removal reactions from a secondary 22N beam were utilized to populate unbound states in neutron-rich carbon isotopes. Neutrons were measured with the Modular Neutron Array (MoNA) in coincidence with carbon fragments. A resonance with a decay energy of 76(14) keV was observed in the system 18C+n corresponding to a state in 19C at an excitation energy of 653(95)keV. This resonance could correspond to the first 5/2+ state which was recently speculated to be unbound in order to describe 1n and 2n removal cross section measurements from 20C. Comment: accepted for publication in Nucl. Phys. A |
| Databáze: | arXiv |
| Externí odkaz: |
|