University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Low Energy Levels in Ni-72

Sawicka, M, Grzywacz, R, Matea, I, Grawe, H, Pfutzner, M, Daugas, J M, Lewitowicz, M, Balabanski, D L, Becker, F, Belier, G, Bingham, C, Borcea, C, Bouchez, E, Buta, A, La Commara, M, Dragulescu, E, de France, G, Georgiev, G, Giovinazzo, J, Gorska, M, Hammache, F, Hass, M, Hellstrom, M, Ibrahim, F, Janas, Z, Mach, H, Mayet, P, Meot, V, Negoita, F, Neyens, G, Santos, F D, Page, R D, Perru, O, Podolyak, Z, Roig, O, Rykaczewski, K P, Saint-Laurent, M G, Sauvestre, J E, Sorlin, O, Stanoiu, M, Stefan, I, Stodel, C, Theisen, C, Verney, D and Zylicz, J (2003) Low Energy Levels in Ni-72 Physical Review C, 68 (4). ISSN 0556-2813

[img]
Preview
PDF
fulltext.pdf

Download (82kB)

Abstract

The yrast J(pi)=8(+) states in neutron-rich Ni-70,Ni-72,Ni-74,Ni-76 nuclei are predicted to be isomeric. The present paper describes two GANIL experiments. In the first of them a search was made for the 8(+) isomeric states in Ni-72,Ni-74 nuclei via fragmentation of Ge-76 using the ion gamma-decay correlation technique. Although these states were not observed, limits for their lifetimes were determined. In the second experiment the decay spectroscopy of Co-70,Co-72 nuclei was performed using fragmentation of a Kr-86(36+) beam and the new LISE2000 spectrometer. The beta delayed gamma rays from the decay of Co-70,Co-72 to Ni-70,Ni-72 were observed using the EXOGAM germanium detectors. The half life of Co-72 was measured to be 62(3) ms and the level sequence of the lowest excited states in Ni-72 was suggested, with the 2(+) state at 1096 keV. An attempt to reproduce the level scheme in terms of shell-model calculations was undertaken. The reasons for the disappearance of the 8(+) isomer in Ni-72 are discussed.

Item Type: Article
Additional Information: Published in <i>Physical Review C,</i> Vol. 68, Iss. 4. Copyright 2003 American Physical Society. Click <a href=http://prc.aps.org/>here</a> to access the journal's website.
Divisions: Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:07
Last Modified: 23 Sep 2013 18:27
Authors:
AuthorsEmail
Sawicka, MUNSPECIFIED
Grzywacz, RUNSPECIFIED
Matea, IUNSPECIFIED
Grawe, HUNSPECIFIED
Pfutzner, MUNSPECIFIED
Daugas, J MUNSPECIFIED
Lewitowicz, MUNSPECIFIED
Balabanski, D LUNSPECIFIED
Becker, FUNSPECIFIED
Belier, GUNSPECIFIED
Bingham, CUNSPECIFIED
Borcea, CUNSPECIFIED
Bouchez, EUNSPECIFIED
Buta, AUNSPECIFIED
La Commara, MUNSPECIFIED
Dragulescu, EUNSPECIFIED
de France, GUNSPECIFIED
Georgiev, GUNSPECIFIED
Giovinazzo, JUNSPECIFIED
Gorska, MUNSPECIFIED
Hammache, FUNSPECIFIED
Hass, MUNSPECIFIED
Hellstrom, MUNSPECIFIED
Ibrahim, FUNSPECIFIED
Janas, ZUNSPECIFIED
Mach, HUNSPECIFIED
Mayet, PUNSPECIFIED
Meot, VUNSPECIFIED
Negoita, FUNSPECIFIED
Neyens, GUNSPECIFIED
Santos, F DUNSPECIFIED
Page, R DUNSPECIFIED
Perru, OUNSPECIFIED
Podolyak, Zz.podolyak@surrey.ac.uk
Roig, OUNSPECIFIED
Rykaczewski, K PUNSPECIFIED
Saint-Laurent, M GUNSPECIFIED
Sauvestre, J EUNSPECIFIED
Sorlin, OUNSPECIFIED
Stanoiu, MUNSPECIFIED
Stefan, IUNSPECIFIED
Stodel, CUNSPECIFIED
Theisen, CUNSPECIFIED
Verney, DUNSPECIFIED
Zylicz, JUNSPECIFIED
Date: 1 January 2003
URI: http://epubs.surrey.ac.uk/id/eprint/300

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800