CAAMANO, M.; WALKER, P.M.; REGAN, P.H.; PFÜTZNER, M.; PODOLYÁK, Zs.; GERL, J.; HELLSTRÖM, M.; MAYET, P.; MINEVA, M.N.; APRAHAMIAN, A.; BENLLIURE, J.; BRUCE, A.M.; BUTLER, P.A.; CORTINA GIL, D.; CULLEN, D.M.; DÖRING, J.; ENQVIST, T.; FOX, C.; GARCÉS NARRO, J.; GEISSEL, H.; GELLETLY, W.; GIOVINAZZO, J.; GÓRSKA, M.; GRAWE, H.; GRZYWACZ, R.; KLEINBÖHL, A.; KORTEN, W.; LEWITOWICZ, M.; LUCAS, R.; MACH, H.; O'LEARY, C.D.; DE OLIVEIRA SANTOS, Francois; PEARSON, C.J.; REJMUND, F.; REJMUND, M.; SAWICKA, M.; SCHAFFNER, H.; SCHLEGEL, C.; SCHMIDT, K.; SCHMIDT, K.H.; STEVENSON, P.D.; THEISEN, Ch.; VIVÈS, F.; WARNER, D.D.; WHELDON, C.; WOLLERSHEIM, H.J.; WOODING, S.; XU, F.; YORDANOV, O.

doi:10.1140/epja/i2004-10079-7

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

Langue

Article de revue

Ce document a été publié dans

European Physical Journal A. 2005, vol. 23, p. 201-215

EDP Sciences

Résumé en anglais

Relativistic projectile fragmentation of 208Pb has been used to produce isomers in neutron-rich, A appro 190 nuclides. A forward-focusing spectrometer provided ion-by-ion mass and charge identification. The detection of γ-rays emitted by stopped ions has led to the assignment of isomers in 188Ta, 190W, 192}Re, 193Re, 195Os, 197r, 198Ir, 200Pt, 201Pt, 202Pt and 203Au, with half-lives ranging from approximately 10 ns to 1 ms. Tentative isomer information has been found also for 174Er,175Er, 185Hf, 191Re, 194Re and 199Ir. In most cases, time-correlated, singles γ-ray events provided the first spectroscopic daa on excited states for each nuclide. In 200Pt and 201Pt, the assignments are supported by γ-γ coincidences. Isomeric ratios provide additional information, such as half-life and transition energy constraints in particular cases. The level structures of the platinum isotopes are discussed, and comparisons are made with isomer systematics.< Réduire

Métadonnées

Licence d’utilisation du document

Isomers in neutron-rich A approx 190 nuclides from 208Pb fragmentation

Langue

Ce document a été publié dans

Résumé en anglais

DOI

Origine

Unités de recherche