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Shell Evolution and E2 Collectivity: New Spectroscopic Information

Authors :
Pietralla N.
Kremer C.
Beck T.
Witt W.
Gayer U.
von Neumann-Cosel P.
Werner V.
Source :
EPJ Web of Conferences, Vol 178, p 02007 (2018)
Publication Year :
2018
Publisher :
EDP Sciences, 2018.

Abstract

New spectroscopic information on electric quadrupole collectivity has recently been obtained. We report on our identification of a coexisting deformed structure in the quasi-doubly closed-shell nucleus 96Zr from our measurement of a corresponding absolute E2 intraband transition strength in electron scattering reactions and its small mixing matrix element with the spherical ground state structure. The even-mass zirconium isotopes exhibit a first order quantum shape phase transition between neutron numbers 58 and 60. We have used photon scattering reactions for a first measurement of the E2 decay strength of the nuclear 1+ scissors mode. Evidence for its 2+ rotational excitation and its extraordinarily large rotational moment of inertia are presented.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
2100014X
Volume :
178
Database :
Directory of Open Access Journals
Journal :
EPJ Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.9a8345df9af4737b066cad3ab7222fe
Document Type :
article
Full Text :
https://doi.org/10.1051/epjconf/201817802007