Lifetime measurements in decoupled bands

Heits, B.; Friederichs, H. G.; Gelberg, A.; Lieb, Klaus; Perego, A.; Rascher, R.; Zell, K. O.; Brentano, P. von

doi:10.1016/0370-2693(76)90554-2

Cited by 37 publications

(8 citation statements)

References 6 publications

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“…Similar bands have been found in odd isotopes of which we investigated 71As [4,5], 73As [5,6], 8tRb [7,8], 83Rb [9], VSSe [10], VVSe [11] and 79Se [12]. For extending our survey on the odd Se isotopes we used the reaction 7~ to populate the high spin states of the 73Se nucleus.…”

Section: Introductionsupporting

confidence: 51%

High spin states in73Se observed by the reaction70Ge(?,n?)

et al. 1976

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V3Se has been investigated by the reaction 7~Gamma excitation functions (E~=10-16 MeV), gamma angular distributions (E~= 18 MeV) and gamma-gamma coincidences (E~=15 MeV) have been taken. A level scheme has been established, spins and partities have been assigned. States of a rotational band on the 151.2 keV (5/2-) state and an anomalous band have been identified. Nuclear Reaction 7~nT) E~= 15 and 18 MeV; measured E~, I,~, ~-7-coin., y-angular distribution, y-excitation function. 73Se deduced levels, J, ~. Enriched target, Ge(Li).

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Section: Introductionsupporting

confidence: 51%

High spin states in73Se observed by the reaction70Ge(?,n?)

et al. 1976

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“…The coincident p-p events were sorted into four two-dimensional matrices corresponding to the four pairs of detector angles. These matrices were analyzed by setting gates on the peaks of 1.09 (9) 1.06 (5) 0.44 (11) 0.28 (5) 0.36 (12) 0.80 (20) 0.74 (9) 0.76 (25) 1.04 (17) 1.06 (8) 0.98 (5) 0.34 (9) 0.17 (5) 0.62 (10) 0.92 (13) O. 54 (9) 1.10 (11) 1.O2 (7) 0.27 (8) 1.06 (7) 0.51 (10) 1.28 (22) 1.05 (9) 0.35 (10) 0.62 ( 1232.…”

Section: Experimental Techniquesmentioning

confidence: 99%

“…For comparison Table II also includes mean lifetimes reported in Refs. [8,10] for levels in~~A s deduced Rom Doppler-shift attenuation and recoil distance Doppler-shift measurements.…”

Section: Lifetime Measurements and Transition Strengthsmentioning

confidence: 99%

Negative-parity structures and lifetime measurements inAs71

et al. 1994

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High-spin states up to ( -+) and ( -) in As have been studied via the Ni(' F,n2p) reaction at 62 MeV using in-beam p-ray spectroscopic techniques. Based on a particle-p coincidence measurement a new decay sequence of negative parity has been assigned to As. Lifetimes for some E2 transitions were extracted from Doppler-shifted line shapes observed in coincidence mode, and experimental transition quadrupole moments were determined. They indicate a moderate to high collectivity in both the positive-parity yrast band and the new negative-parity decay sequence at high spins. Total Routhian surfaces calculated for states of both parities reveal strong triaxial shapes at high spins. A noncollective structure of '~and~states is interpreted as a three-quasiparticle excitation.PACS number(s): 21.10. Tg, 23.20.Lv, 27.50.+e

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“…In the course of a systematic investigation of odd arsenic, bromium and rubidium isotopes, it has been found that the positive parity high spin states associated with the gg/z proton orbit follow the pattern of rotational aligned bands [1][2][3][4][5]. Due to the triaxial shapes of the respective even-even "core" nuclei, the favored and unfavored yrast states appear as close lying doublets.…”

Section: Introductionmentioning

confidence: 99%

Yrast transition strengths in85Rb and85Sr

et al. 1983

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High spin states in 85Rb and 85Sr were populated in the reactions 76Ge(12C, p2n) and 76Ge(lZC,3n), respectively. The lifetimes of twelve states were measured via the recoil distance Doppler shift technique. The positive parity bands in both nuclei associated with the g9] 2 orbit exhibit decrasing E2 strengths for increasing spin value marking the onset of multiparticle excitation.Nuclear Reactions: V6Ge(tZC, p2n)85Rb; 76Ge(lZC, 3n)8SSr; E=42-52 MeV; measured E~, I~, recoil distance Doppler shift. 85Rb, 85Kr levels deduced 3. Enriched targets. Shell model and muli-partMe core coupling calculations.

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Lifetime measurements in decoupled bands

Cited by 37 publications

References 6 publications

High spin states in73Se observed by the reaction70Ge(?,n?)

High spin states in73Se observed by the reaction70Ge(?,n?)

Negative-parity structures and lifetime measurements inAs71

Yrast transition strengths in85Rb and85Sr

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