HAL : in2p3-00163331, version 1
 arXiv : 0707.0363
 Nuclear Physics A 800 (2008) 37-46
 Detecting bubbles in exotic nuclei
 E. Khan1, M. Grasso2, 3, J. Margueron1, N. Van Giai1
 (2008)
 The occurrence of a bubble, due to an inversion of s$_{1/2}$ state with the state usually located above, is investigated. Proton bubbles in neutron-rich Argon isotopes are optimal candidates, and the case of $^{46}$Ar is analyzed. Several experimental data favor the bubble hypothesis, such as the B(E2) value of the first 2$^+$ state, the energy level of the first 3$^-$ state as well as the ground state properties of $^{47}$K. Pairing effects which can play against the bubble formation are evaluated. They cannot prevent bubble formation in more neutron-rich argon isotopes such as $^{68}$Ar. This pleads for a measurement of the charge density of $^{46}$Ar in the forthcoming years, with the advent of electron scattering experiments in next generation exotic beam facilities such as FAIR or RIBF.
 Thème(s) : Physique/Physique Nucléaire ExpérimentalePhysique/Physique Nucléaire Théorique
 Lien vers le texte intégral : http://fr.arXiv.org/abs/0707.0363
 in2p3-00163331, version 1 http://hal.in2p3.fr/in2p3-00163331 oai:hal.in2p3.fr:in2p3-00163331 Contributeur : Suzanne Robert <> Soumis le : Mardi 17 Juillet 2007, 14:47:20 Dernière modification le : Mardi 18 Mars 2008, 17:18:12