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Evolution of the $N=28$ shell closure: a test bench for nuclear forces
Sorlin O., Porquet M.-G.
Dans Physica Scripta - Nobel Symposium: Physics with Radioactive Beams, Göteborg : Suède (2012) - http://hal.in2p3.fr/in2p3-00732159
Physique/Physique Nucléaire Expérimentale
Evolution of the $N=28$ shell closure: a test bench for nuclear forces
O. Sorlin1, M.-G. Porquet2
1 :  GANIL - Grand Accélérateur National d'Ions Lourds
http://www.ganil-spiral2.eu
CNRS : UPR3266 – IN2P3 – CEA : DSM/GANIL
Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5
France
2 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
http://www-csnsm.in2p3.fr/
CNRS : UMR8609 – IN2P3 – Université Paris XI - Paris Sud
batiments 104 et 108 - 91405 Orsay Campus
France
CSNSM SNO
The evolution of the $N=28$ shell closure is investigated far from stability. Using the latest results obtained from various experimental techniques, we discuss the main properties of the $N=28$ isotones, as well as those of the $N=27$ and $N=29$ isotones. Experimental results are confronted to various theoretical predictions. These studies pinpoint the effects of several terms of the nucleon-nucleon interaction, such as the central, the spin-orbit, the tensor and the three-body force components, to account for the modification of the $N=28$ shell gap and spin-orbit splittings. Analogies between the evolution of the $N=28$ shell closure and other magic numbers originating from the spin-orbit interaction are proposed ($N=14,50, 82$ and $90$). More generally, questions related to the evolution of nuclear forces towards the drip-line, in bubble nuclei, and for nuclei involved in the r-process nucleosynthesis are proposed and discussed.

Communications avec actes
2013
2012
Physica Scripta
internationale
T152
014003

Nobel Symposium: Physics with Radioactive Beams
Göteborg
Suède
09/06/2012
15/06/2012
O. Sorlin

GANIL P 2012-11, CSNSM SNO
21.10.-k, 21.30.-x, 21.60.-n, 27.30.+t, 27.40.+z}
40 pages,15 figures, Procceedings Nobel Symposium 2012, accepted for publication in Physica Scripta
Liste des fichiers attachés à ce document : 
TEX
N28_NS2012_13sept_mgp.tex(122.2 KB)
BE2Si_wtensor.png(48.6 KB)
charteN28_config.png(130.9 KB)
E13KClP.png(155 KB)
ESPEN_3body.png(43.3 KB)
ESPEN28.png(62.1 KB)
iopams.sty(3.1 KB)
iopart.cls(35.9 KB)
iopart10.clo(4.6 KB)
iopart12.clo(4.6 KB)
masses.png(105.9 KB)
N27.png(64.6 KB)
np_in_26F.png(47.7 KB)
proton_density_small.png(136.2 KB)
proton_occup_P.png(80.9 KB)
SOgeneral.png(125.4 KB)
SOinCaSSi.png(73.5 KB)
npforces_below42Si.png(59.9 KB)
BE2_Mg_to_Ca.jpg(14.3 KB)
binding_d3s1d5_exp_HFBGogny.jpg(23.8 KB)
E2plus_Mg_to_Ca.jpg(17.2 KB)
PDF
N28_NS2012_13sept_mgp.pdf(1.3 MB)