Disappearance of the N=14 shell gap in the carbon isotopic chain
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Stanoiu, M, Sohler, D, Sorlin, O, Azaiez, F, Dombradi, Z, Brown, BA, Belleguic, M, Borcea, C, Bourgeois, C, Dlouhy, Z, Elekes, Z, Fulop, Z, Grevy, S, Guillemaud-Mueller, D, Ibrahim, F, Kerek, A, Krasznahorkay, A, Lewitowicz, M, Lukyanov, SM, Mandal, S, Mrazek, J, Negoita, F, Penionzhkevich, Y-E, Podolyak, Z, Roussel-Chomaz, P, Saint-Laurent, MG, Savajols, H, Sletten, G, Timar, J, Timis, C and Yamamoto, A (2008) Disappearance of the N=14 shell gap in the carbon isotopic chain PHYSICAL REVIEW C, 78 (3). ? - ?. ISSN 0556-2813
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Abstract
The structure of C-17-20(6) nuclei was investigated by means of the in-beam gamma-ray spectroscopy technique using fragmentation reactions of radioactive beams. Based on particle-gamma and particle-gamma gamma coincidence data, level schemes are constructed for the neutron-rich C17-20 nuclei. The systematics of the first excited 2(+) states in the carbon isotopes is extended for the first time to A = 20 showing that in contrast to the case of the oxygen isotopes, the N = 14 subshell closure disappears. Experimental results are compared with shell-model calculations. Agreement between them is found only if a reduced neutron-neutron effective interaction is used. Implications of this reduced interaction in some properties of weakly bound neutron-rich Carbon are discussed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Science & Technology, Physical Sciences, Physics, Nuclear, Physics, EXCITED-STATES, DRIP-LINE, NUCLEI, MODEL, C-17, B-17, MASS |
| Divisions: | Faculty of Engineering and Physical Sciences > Physics |
| Related URLs: | |
| ID Code: | 106 |
| Deposited By: | Mr Adam Field |
| Deposited On: | 27 May 2010 15:06 |
| Last Modified: | 21 Sep 2012 15:09 |
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