Directional correlations of gamma radiations emitted from nuclear states oriented by nuclear reactions or cryogenic methods

Krane, K. S.; Steffen, R.M.; Wheeler, R.M.

doi:10.1016/s0092-640x(73)80016-6

Cited by 519 publications

(202 citation statements)

References 9 publications

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“…For the lowest state of band 6, assigned as (21/2) in Ref. [1], the most important decay transitions are at 724 keV with a DCO ratio of 0.77 (9) to the 21/2 − state of band 10 and at 618 keV with a DCO ratio of 1.11 (7) to the 19/2 + level of band 3, consistent with the I π = 23/2 + assignment to this level. Furthermore, bands 6 and 8 are observed to be connected by ∆I = 2 transitions around I = 35/2, where the two bands come quite close in energy, interacting with each other, resulting in a measurable mixing which supports the fact that both pairs of bands have identical parity.…”

Section: Bands 56supporting

confidence: 73%

“…Both numbers are obtained from averages of experimental R Θ values for transitions of known multipolarity [2,4]. For strong transitions in the lower part of the decay scheme, DCO ratios [9] were also used and these agree for selected cases well with the assignments by Granderath [4] and Seiffert [2]. For further confirmation, we refer to the discussion of bands 5 -8 in chapter B where ratios around 0.6 and 1.0 for stretched dipole and stretched quadrupole transitions, respectively, are observed.…”

Section: Analysis and Resultsmentioning

confidence: 99%

See 1 more Smart Citation

High-spin spectroscopy inXe125

Al-Khatib

Hagemann²,

Sletten³

et al. 2011

Phys. Rev. C

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Section: Bands 56supporting

confidence: 73%

Section: Analysis and Resultsmentioning

confidence: 99%

High-spin spectroscopy inXe125

Al-Khatib

Hagemann²,

Sletten³

et al. 2011

Phys. Rev. C

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“…The radware band search routine was used extensively to look for weak high-spin bands. In addition, an analysis of γ-ray directional correlation from oriented states (DCO ratios) [25] was performed to determine the multipolarity of the γ rays. Gated DCO matrices, with detectors at 32 • , 37 • , 143 • , 148 • and 163 • along the x-axis, and detectors from 58 • through 122 • along the y-axis, were constructed for each γ-ray sequence.…”

Section: Experimental Details and Data Analysismentioning

confidence: 99%

Toward complete spectroscopy ofLu167

Roux¹,

Ma²,

Hagemann

et al. 2015

Phys. Rev. C

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Excited states in 167 Lu were populated in the 123 Sb( 48 Ca,4n) reaction at 203 MeV and decay γ-rays measured using the Gammasphere spectrometer array. Two triaxial strongly deformed bands were identified previously and interpreted as zero-and one-phonon wobbling excitations. As a result of more extensive band search, the level scheme has been considerably extended to include ten new rotational bands, and some 630 γ-ray transitions. A number of interband linking transitions were revealed, so that all but two bands could be connected with each other. Configurations are proposed for all new bands based on measured observables, with the help of Cranked Shell Model calculations. A γ-ray sequence, previously suggested as a triaxial strongly deformed band based on quasiparticle excitations coexisting with the wobbling excitation in the triaxial potential well, has now been determined to be a signature partner of a coupled band, associated with a normal deformed five-quasiparticle configuration. The possibility for two new bands being associated with triaxial deformation is discussed.

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“…Such complex approach is employed for the first time in the case of the investigation of chirality in nuclei. The angular correlation function for two successive transitions from oriented states depends on the spins of initial, intermediate and final levels, and on the multipole mixing ratios [34]. In the present work, the angular correlation analysis was carried out with the computer code CORLEONE [35].…”

Section: Rhmentioning

confidence: 99%

“…[36,41]. For the analysis of the DSAM data, we performed a Monte Carlo simulation of the slowing-down histories of the recoils using a modified [34,42] version of the program DESASTOP [43]. The analysis of the line shapes was carried out according to the DDCM for treating DSAM data [36,37].…”

Section: Prmentioning

confidence: 99%

Lifetime measurements in mass regions A=100 and A=130 as a test for chirality in nuclear systems

Tonev

Yavahchova

Angelis

et al. 2016

EPJ Web of Conferences

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Abstract. Two odd-odd nuclei from the A ∼ 100 and A ∼ 130 regions, namely 102 Rh and 134 Pr have been studied in search for chiral doublet bands via 94 Zr( 11 B,3n) 102 Rh and 119 Sn( 19 F,4n) 134 Pr reactions, respectively. Two nearly degenerate bands built on the πg 9/2 ⊗ νh 11/2 configuration have been identified in 102 Rh and on the πg 11/2 ⊗ νh 11/2 configuration for 134 Pr. Lifetimes of excited nuclear states were measured using Dopplershift attenuation method and recoil distance Doppler-shift method. The deexciting gamma rays were registered by the Indian National Gamma Array for 102 Rh and using the EUROBALL IV detector array with an inner Bismuth Germanate (BGO) ball for 134 Pr, respectively. Polarization and angular correlation measurements have been performed to establish the spin and parity assignments for these bands. The derived reduced transition probabilities are compared to the predicitons of the two quasiparticles + triaxial rotor and interacting boson fermion-fermion models.

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Directional correlations of gamma radiations emitted from nuclear states oriented by nuclear reactions or cryogenic methods

Cited by 519 publications

References 9 publications

High-spin spectroscopy inXe125

High-spin spectroscopy inXe125

Toward complete spectroscopy ofLu167

Lifetime measurements in mass regions A=100 and A=130 as a test for chirality in nuclear systems

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