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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), ARTN 0.

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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 :
AuthorsEmailORCID
Stanoiu, MUNSPECIFIEDUNSPECIFIED
Sohler, DUNSPECIFIEDUNSPECIFIED
Sorlin, OUNSPECIFIEDUNSPECIFIED
Azaiez, FUNSPECIFIEDUNSPECIFIED
Dombradi, ZUNSPECIFIEDUNSPECIFIED
Brown, BAUNSPECIFIEDUNSPECIFIED
Belleguic, MUNSPECIFIEDUNSPECIFIED
Borcea, CUNSPECIFIEDUNSPECIFIED
Bourgeois, CUNSPECIFIEDUNSPECIFIED
Dlouhy, ZUNSPECIFIEDUNSPECIFIED
Elekes, ZUNSPECIFIEDUNSPECIFIED
Fulop, ZUNSPECIFIEDUNSPECIFIED
Grevy, SUNSPECIFIEDUNSPECIFIED
Guillemaud-Mueller, DUNSPECIFIEDUNSPECIFIED
Ibrahim, FUNSPECIFIEDUNSPECIFIED
Kerek, AUNSPECIFIEDUNSPECIFIED
Krasznahorkay, AUNSPECIFIEDUNSPECIFIED
Lewitowicz, MUNSPECIFIEDUNSPECIFIED
Lukyanov, SMUNSPECIFIEDUNSPECIFIED
Mandal, SUNSPECIFIEDUNSPECIFIED
Mrazek, JUNSPECIFIEDUNSPECIFIED
Negoita, FUNSPECIFIEDUNSPECIFIED
Penionzhkevich, Y-EUNSPECIFIEDUNSPECIFIED
Podolyak, ZUNSPECIFIEDUNSPECIFIED
Roussel-Chomaz, PUNSPECIFIEDUNSPECIFIED
Saint-Laurent, MGUNSPECIFIEDUNSPECIFIED
Savajols, HUNSPECIFIEDUNSPECIFIED
Sletten, GUNSPECIFIEDUNSPECIFIED
Timar, JUNSPECIFIEDUNSPECIFIED
Timis, CUNSPECIFIEDUNSPECIFIED
Yamamoto, AUNSPECIFIEDUNSPECIFIED
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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