Decay properties of long-lived isomers in the odd-odd N=81 nucleus {sup 146}Tb compared to the {sup 148}Ho and {sup 150}Tm nuclei

Journal Article · Tue Feb 15 00:00:00 EST 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.027301· OSTI ID:21499452

Kownacki, J; Kisielinski, M ^[1]; Droste, Ch; Morek, T; Ruchowska, E; Grodner, E ^[2]; Lieder, R M ^[3]; Kowalczyk, M; Wrzosek-Lipska, K; Hadynska-KlePk, K; Mierzejewski, J ^[1]; Andrzejewski, J; Perkowski, J ^[4]; Napiorkowski, P J; Zielinska, M; Kordyasz, A; Srebrny, J ^[1]; Korman, A ^[5]

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1. Heavy Ion Laboratory, University of Warsaw, Warsaw (Poland)
2. Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw (Poland)
3. Institut fuer Kernphysik Forschungszentrum Juelich, Juelich (Germany)
4. Faculty of Physics, University of Lodz, Lodz Poland (Poland)
5. The Andrzej Soltan Institute for Nuclear Studies, Swierk (Poland)

Excited states of the {sup 146}Tb nucleus have been studied using {gamma}-ray and electron spectroscopy in off-beam and in-beam modes following {sup 112}Sn({sup 40}Ar,3n3p) reaction with the use of the OSIRIS-II, HPGe detector array and the conversion electron spectrometer. The multipolarity of the 343 keV transition deexciting the (7{sup -}) level in {sup 146}Tb shows mainly an E2 nature and the first excited state above the 23 s isomer is assigned as a (5{sup -},6{sup -}) state. The log ft values have been deduced for 11 {beta}{sup +}/EC transitions populating excited states in {sup 146}Gd. The systematic behavior of spins and parities of the long-lived levels at 0+x keV and the first excited states above them in the N=81 isotones {sup 146}Tb, {sup 148}Ho, and {sup 150}Tm is discussed.

• OSTI ID: 21499452
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 2; Other Information: DOI: 10.1103/PhysRevC.83.027301; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON 40 REACTIONS
COMPARATIVE EVALUATIONS
E2-TRANSITIONS
ELECTRON SPECTROSCOPY
EXCITED STATES
GADOLINIUM 146
GAMMA RADIATION
GAMMA SPECTROSCOPY
HIGH-PURITY GE DETECTORS
HOLMIUM 148
ISOMERS
ISOTONIC NUCLEI
MULTIPOLARITY
NEUTRON EMISSION
PARITY
PROTON-EMISSION DECAY
SPIN
TERBIUM 146
THULIUM 150
TIN 112 TARGET
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DECAY
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
EMISSION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVALUATION
EVEN-EVEN NUCLEI
GADOLINIUM ISOTOPES
GE SEMICONDUCTOR DETECTORS
HEAVY ION REACTIONS
HOLMIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
MILLISECONDS LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
PARTICLE PROPERTIES
RADIATION DETECTORS
RADIATIONS
RADIOISOTOPES
RARE EARTH NUCLEI
SECONDS LIVING RADIOISOTOPES
SEMICONDUCTOR DETECTORS
SPECTROSCOPY
TARGETS
TERBIUM ISOTOPES
THULIUM ISOTOPES