Title: Orbital Dependent Nucleonic Pairing in the Lightest Known Isotopes of Tin
Authors: Darby, Iain ×
Grzywacz, R.K.
Batchelder, J.C.
Bingham, C.R.
Cartegni, L.
Gross, C.J.
Hjorth-Jensen, M.
Joss, D.T.
Liddick, S.N.
Nazarewicz, W.
Padgett, S.
Page, R.D.
Papenbrock, T.
Rajabali, Mustafa
Rotureau, J.
Rykaczewski, K.P. #
Issue Date: 15-Oct-2010
Publisher: American Physical Society
Series Title: Physical Review Letters vol:105 issue:16 pages:1-4
Article number: 162502
Abstract: By studying the 109Xe -> 105Te -> 101Sn superallowed alpha-decay chain, we observe low-lying states in
101Sn, the one-neutron system outside doubly magic 100Sn. We find that the spins of the ground state
(J=7/2) and first excited state (J=5/2) in 101Sn are reversed with respect to the traditional level
ordering postulated for 103Sn and the heavier tin isotopes. Through simple arguments and state-of-the-art
shell-model calculations we explain this unexpected switch in terms of a transition from the single-particle
regime to the collective mode in which orbital-dependent pairing correlations dominate.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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