HAL : hal-00000615, version 1

arXiv : nucl-th/0309050

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Probing the shell valence structure underlying the B(E2: 0+->2+) for N,Z~40:preponderance of the p-n interaction over the sub-shell closures.

Isabelle Deloncle1, Brigitte Roussiere2

(19/09/2003)

The very simple product of the number of particles by the number of holes appearing in theexpression of the reduced B(E2:0+->2+) transition probability of even-even nuclei obtained fromthe extension of the seniority scheme is used to analyze the experimental B(E2:0+->2+) values in the Cr up to Se isotopes. A new interpretation is given to the B(E2:0+->2+) measured in 68Ni and 70Zn. The B(E2:0+->2+) features of the even-even nuclei between Ni and Se with neutron number ranging from 28 up to 50 fit in with a global scenario involving p-n interaction. The evolution of the B(E2:0+->2+) curves presenting very large values is amazingly reproduced by very schematic binomial calculations.

1 :	CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
2 :	IPNO - Institut de Physique Nucléaire d'Orsay

Domaine

:

Physique/Physique Nucléaire Théorique

hal-00000615, version 1

http://hal.archives-ouvertes.fr/hal-00000615

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Contributeur : Isabelle Deloncle <>

Soumis le : Vendredi 19 Septembre 2003, 12:13:30

Dernière modification le : Vendredi 19 Septembre 2003, 14:01:12