Title: Experimental Study of the Two-Body Spin-Orbit Force in Nuclei
Authors: Burgunder, G ×
Sorlin, O
Nowacki, F
Giron, S
Hammache, F
Moukaddam, M
de Sereville, N
Beaumel, D
Caceres, L
Clement, E
Duchene, G
Ebran, J. P
Fernandez-Dominguez, B
Flavigny, Freddy
Franchoo, S
Gibelin, J
Gillibert, A
Grevy, S
Guillot, J
Lepailleur, A
Matea, I
Matta, A
Nalpas, L
Obertelli, A
Otsuka, T
Pancin, J
Poves, A
Raabe, Riccardo
Scarpaci, J. A
Stefan, I
Stodel, C
Suzuki, T
Thomas, J. C #
Issue Date: 2014
Publisher: American Physical Society
Series Title: Physical Review Letters vol:112 issue:4 pages:1-5
Abstract: Energies and spectroscopic factors of the first 7=2−, 3=2−, 1=2−, and 5=2− states in the 35Si21 nucleus
were determined by means of the (d, p) transfer reaction in inverse kinematics at GANIL using the MUST2
and EXOGAM detectors. By comparing the spectroscopic information on the 35Si and 37S isotones, a
reduction of the p3=2-p1=2 spin-orbit splitting by about 25% is proposed, while the f7=2-f5=2 spin-orbit
splitting seems to remain constant. These features, derived after having unfolded nuclear correlations using
shell model calculations, have been attributed to the properties of the two-body spin-orbit interaction, the
amplitude of which is derived for the first time in an atomic nucleus. The present results, remarkably well
reproduced by using several realistic nucleon-nucleon forces, provide a unique touchstone for the modeling
of the spin-orbit interaction in atomic nuclei.
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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