Shell evolution and the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>34</mml:mn></mml:mrow></mml:math>“magic number”
M. RejmundGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceS. BhattacharyyaGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceA. NavinGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceW. MittigGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceL. GaudefroyGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceM. GélinGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceG. MukherjeeGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceF. RejmundGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceP. Roussel‐ChomazGrand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, FranceCh. TheisenCEA-Saclay DSM/DAPNIA/SPhN, F-91191 Gif/Yvette Cedex, France
2007lv
ABI
Abstract
Measurements of de-excitation \ensuremath{\gamma} rays in coincidence with target-like residues produced in deep inelastic transfer reactions of $^{238}\mathrm{U}$ on a $^{48}\mathrm{Ca}$ target at an energy near the Coulomb barrier are presented. A systematic analysis, within a shell model approach, of the measured low-lying states in the odd and even neutron-rich Ca isotopes points toward a possible absence of a predicted shell closure at $N=34$.
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