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Disappearance of the N=14 shell gap in the carbon isotopic chain

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
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmail
Stanoiu, MUNSPECIFIED
Sohler, DUNSPECIFIED
Sorlin, OUNSPECIFIED
Azaiez, FUNSPECIFIED
Dombradi, ZUNSPECIFIED
Brown, BAUNSPECIFIED
Belleguic, MUNSPECIFIED
Borcea, CUNSPECIFIED
Bourgeois, CUNSPECIFIED
Dlouhy, ZUNSPECIFIED
Elekes, ZUNSPECIFIED
Fulop, ZUNSPECIFIED
Grevy, SUNSPECIFIED
Guillemaud-Mueller, DUNSPECIFIED
Ibrahim, FUNSPECIFIED
Kerek, AUNSPECIFIED
Krasznahorkay, AUNSPECIFIED
Lewitowicz, MUNSPECIFIED
Lukyanov, SMUNSPECIFIED
Mandal, SUNSPECIFIED
Mrazek, JUNSPECIFIED
Negoita, FUNSPECIFIED
Penionzhkevich, Y-EUNSPECIFIED
Podolyak, ZUNSPECIFIED
Roussel-Chomaz, PUNSPECIFIED
Saint-Laurent, MGUNSPECIFIED
Savajols, HUNSPECIFIED
Sletten, GUNSPECIFIED
Timar, JUNSPECIFIED
Timis, CUNSPECIFIED
Yamamoto, AUNSPECIFIED
Date : 1 September 2008
Identification Number : 10.1103/PhysRevC.78.034315
Uncontrolled Keywords : Science & Technology, Physical Sciences, Physics, Nuclear, Physics, EXCITED-STATES, DRIP-LINE, NUCLEI, MODEL, C-17, B-17, MASS
Related URLs :
Depositing User : Mr Adam Field
Date Deposited : 27 May 2010 14:06
Last Modified : 23 Sep 2013 18:25
URI: http://epubs.surrey.ac.uk/id/eprint/106

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