Evolution of collectivity along the N=Z line: The {sup 84}Mo nucleus

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.56.2497· OSTI ID:365359

Bucurescu, D; Ur, C A; Marginean, N; Ionescu-Bujor, M; Iordachescu, A; Petrache, C M ^[1]; Ur, C A; Bazzacco, D; Lunardi, S; Petrache, C M; Brandolini, F; Falconi, G; Lenzi, S M; Venturelli, R ^[2]; Napoli, D R; de Angelis, G; Gadea, A; Foltescu, D; Farnea, E; Podolyak, Zs ; De Poli, M ^[3]; Rao, M N ^[4]

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1. Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest (Romania)
2. Dipartimento di Fisica dellUniversita and INFN, Sezione di Padova, Padova (Italy)
3. INFN, Laboratori Nazionali di Legnaro, Legnaro (Italy)
4. Universidade de Sao Paolo, Sao Paolo, Brasil (Brazil)

The reaction {sup 58}Ni({sup 28}Si,2n{gamma}) at 90 MeV incident energy has been used to populate the N=Z nucleus {sup 84}Mo. The GASP array was used together with the ISIS Silicon ball, which allowed a subtraction of the charged particle channels in the {gamma}-{gamma} coincidences. The only known transition 2{sub 1}{sup +}{r_arrow}0{sub 1}{sup +} of 443.8 keV in {sup 84}Mo has been found in coincidence with a {gamma} ray of 673.5{plus_minus}0.4 keV which was assigned as the second (4{sub 1}{sup +}{r_arrow}2{sub 1}{sup +}) yrast transition. The behavior of the resulting yrast line indicates that {sup 84}Mo is a transitional nucleus. The correlation between the excitation energies of the 2{sub 1}{sup +} and 4{sub 1}{sup +} levels of the N=Z nuclei reveals a systematic deviation from the average behavior defined by all collective even-even nuclei. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 365359
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 56; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COINCIDENCE METHODS
COLLECTIVE MODEL
CORRELATIONS
EVEN-EVEN NUCLEI
EXCITATION
MOLYBDENUM 84
NICKEL 58 TARGET
PARTICLE PRODUCTION
SILICON 28 REACTIONS
YRAST STATES