Breakdown of vibrational structure in {sup 98}Ru

Journal Article · Fri Oct 01 04:00:00 EDT 2004 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.70.044312· OSTI ID:20695652

Cakirli, R B ^[1]; Casten, R F ^[1]; McCutchan, E A; Ai, H; Amro, H; Beausang, C W; Heinz, A; Meyer, D A; Plettner, C; Ressler, J J; Zamfir, N V ^[1]; Babilon, M ^[1]; Hughes, R O ^[1]

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1. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520-8124 (United States)

The nucleus {sup 98}Ru, the lightest collective Ru isotope with N>50, has been studied employing the ({alpha},2n) reaction using YRAST Ball detectors. The new data, as well as a systematic set of limits on the intensities of unobserved transitions, reveal a structure that resembles a near harmonic vibrator spectrum up through the two-phonon triplet but show an almost complete breakdown of vibrator structure thereafter. These results are not understood theoretically and are at variance with previous interpretations of this nucleus. A rare anomaly in yrast B(E2) values is also pointed out.

• OSTI ID: 20695652
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 70; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ALPHA REACTIONS
COLLECTIVE MODEL
E2-TRANSITIONS
GAMMA SPECTRA
NEUTRONS
PHONONS
RUTHENIUM 98
TRIPLETS
VIBRATIONAL STATES
YRAST STATES