Nuclear magnetic moment of Cu-59 with on-line beta-NMR on oriented nuclei

0105649 - UJF-V 20043220 RIV US eng J - Journal Article
Golovko, VV. - Kraev, I. - Phalet, T. - Severijns, N. - Delaure, B. - Beck, M. - Kozlov, V. Yu - Lindroth, A. - Versyk, S. - Zákoucký, Dalibor - Vénos, Drahoslav - Srnka, Dušan - Honusek, Milan - Herzog, P. - Tramm, C. - Köster, U. - Towner, IS.
Nuclear magnetic moment of Cu-59 with on-line beta-NMR on oriented nuclei.
[Jaderný magnetický moment Cu-59 s on-line beta-NMR na orientovyných jádrech.]
Physical Review. C. Roč. 70, č. 1 (2004), 014312. ISSN 0556-2813
R&D Projects: GA ČR GA202/02/0848
Institutional research plan: CEZ:AV0Z1048901
Keywords : matrix-elements * ionization * ISOLDE
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 3.125, year: 2004

The nuclear magnetic moment of the nucleus Cu-59, with one proton and two neutrons outside the closed N=Z=28 shells, was,measured in an on-line experiment combining beta-NMR with low temperature nuclear orientation and with particle detectors operating at a temperature of about 10 K. From the data the center frequency nu(B-ext=0)=209.51(22) MHz was derived. Using the hyperfine field of Cu in host iron from the literature the result for the moment is mu[Cu-59]=+1.891 (9) mu(N), which reveals a large deviation from the proton p(3/2) single-particle value. This provides strong experimental evidence for a massive shell breaking at Ni-56

Jaderný magnetický moment jádra Cu-159 s jedním protonem a dvěma neutrony mimo uzavřené slupky N=Z=28 byl měřen v on-line experimentu, kombinujícím beta-NMR s nízkoteplotní jadernou orientací a užívajícím detektory částic pracující při teplotách kolem 10 K.
Permanent Link: http://hdl.handle.net/11104/0012877