Skip to Main content Skip to Navigation
Conference papers

Spectroscopy of the odd transfermium $^{251}$Md and $^{255}$Lr nuclei using $\gamma$, electron and $\alpha$ spectroscopy

Abstract : A rotational band has been observed in 251Md using RITU and the $\gamma$-ray spectrometer Jurogam at the University of Jyvaskyla. Interpreted as having a 1/2- configuration, this is the first firmly established rotational band in an odd-Z transfermium nucleus. In order to disentangle the single-particle structure, the $\alpha$ decay of 255Lr has been studied both at Jyvaskyla and at GANIL. From the preliminary analysis, we have observed for the first time the $\alpha$ decay fine structure of 251Md and two excited states in 247Es. Four $\alpha$ lines from the 255Lr decay have been observed, originating from two initial states, which establishes the ordering of the levels.
Document type :
Conference papers
Complete list of metadatas

Cited literature [6 references]  Display  Hide  Download
Contributor : Michel Lion <>
Submitted on : Friday, December 15, 2006 - 12:09:50 PM
Last modification on : Wednesday, September 16, 2020 - 4:17:35 PM
Long-term archiving on: : Saturday, April 3, 2010 - 9:35:22 PM


  • HAL Id : in2p3-00025447, version 1


A. Chatillon, Ch. Theissen, E. Bouchez, E. Clément, R. Dayras, et al.. Spectroscopy of the odd transfermium $^{251}$Md and $^{255}$Lr nuclei using $\gamma$, electron and $\alpha$ spectroscopy. International Symposium on Exotic Nuclei (EXON 2004), Jul 2004, Peterhof, Russia. pp.198-205. ⟨in2p3-00025447⟩



Record views


Files downloads