Experimental study of the two-body spin-orbit force
GRÉVY, S.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
Grand Accélérateur National d'Ions Lourds [GANIL]
< Leer menos
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
Grand Accélérateur National d'Ions Lourds [GANIL]
Idioma
en
Article de revue
Este ítem está publicado en
Physical Review Letters. 2014, vol. 112, p. 042502
American Physical Society
Resumen en inglés
Energies and spectroscopic factors of the first $7/2^-$, $3/2^-$, $1/2^-$ and $5/2^-$ states in the $^{35}$Si$_{21}$ nucleus were determined by means of the (d,p) transfer reaction in inverse kinematics at GANIL using the ...Leer más >
Energies and spectroscopic factors of the first $7/2^-$, $3/2^-$, $1/2^-$ and $5/2^-$ states in the $^{35}$Si$_{21}$ 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 $^{35}$Si and $^{37}$S isotones, a reduction of the $p_{3/2} - p_{1/2}$ spin-orbit splitting by about 25\% is proposed, while the $f_{7/2} -f_{5/2}$ 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 2-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.< Leer menos
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