Electromagnetic properties of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Th</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>230</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>studied by Coulomb excitation

Gerl, J.; Elze, Th. W.; Ower, H.; Böhn, H.; Kaffrell, Ν.; Trautmann, Ν.

doi:10.1103/physrevc.29.1684

Cited by 16 publications

(9 citation statements)

References 23 publications

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“…The values in the third column of Table 6 were calculated for z = 0.3. We notice that our experimental values differ subtantially from those obtained in [10]. In the present experiments, the values of the v-intensities were obtained using 3zS and heavier projectiles allowing to record spectra with better statistics.…”

Section: -20+mentioning

confidence: 80%

“…As it was discussed before, the mixing of the/?-and 7-bands in Z3~ is of especial importance. This would imply the importance of the terms proportional to b and c in (10).…”

Section: B(e2 I~ ~ I'g)= B(e2 I~ ~ I'g)ementioning

confidence: 97%

“…Recently the electromagnetic properties of Z3~ were studied by Coulomb excitation with 32S ions [10]. To obtain more details about the structure of side bands, and get additional information about the behaviour of the yrast band and the octupole vibrational band in 23~ at higher angular momenta, we have performed Coulomb excitation measurements with 3zS, 84Kr and 14ZNd ions.…”

Section: For Z3~mentioning

confidence: 99%

“…Using the experimental values for the reduced transition matrix elements <KglgIIM(E2)]IK~Ig) from [10] Without the term describing the direct coupling of the/?-and 7-bands in the electric quadrupole operator (4) (i.e. rap, s = 0) and using the earlier estimations for the parameters ~ps, z~(0), zs(2 ) and //~=0 one obtains from (8) the values which are almost two orders smaller than the experimentally found ratios.…”

Section: = B(e2 It ~(1--2)g)/b(e2 Ir ~ Ig ) Are Well Repro-mentioning

confidence: 99%

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Coulomb excitation of230Th with32S,84Kr and142Nd projectiles

Kulessa

Briançon

Lefèbvre

et al. 1989

Z. Physik A - Atomic Nuclei

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The Coulomb excitation measurements for the 23~ nucleus with 328, 84Kr and 142Nd projectiles are presented. The use of different projectiles allowed us to get information in the ground-state band and side bands. The energy spectrum of the ground-state band and of the lowest negative-parity band have been investigated up to the spin value I=24 + and I=19-(21), respectively. Five side bands (K~=0+,2+,2~, 1-,2-) were observed also. The branching ratios for a large number of transitions in the spin region I< 10 for ~= + l and 1<9 for re=-1 are analysed. The full set of experimental data contains information on the mixing of the adiabatic states and on the nuclear response to the electromagnetic field of ;:-radiation. It is shown that the experimental data may be explained taking into account the coupling of the ground-/3-and two 7-bands and also of the K~= 0-, 1-and 2-negative-parity bands. An enhancement of the transitions from the ~-to the/~-band in respect to the transitions from the 7 to the ground band and from the /~-to the ground band is reported. The mixing of the negative-parity bands is found to be typical for the alignment of the octupole-vibrational angular momentum. The strong spin dependence of the intrinsic matrix elements of the electric-dipole operator follows from the branching ratios of inter-and intra-band transitions from the K s=0 states.

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Section: -20+mentioning

confidence: 80%

“…As it was discussed before, the mixing of the/?-and 7-bands in Z3~ is of especial importance. This would imply the importance of the terms proportional to b and c in (10).…”

Section: B(e2 I~ ~ I'g)= B(e2 I~ ~ I'g)ementioning

confidence: 97%

Section: For Z3~mentioning

confidence: 99%

Section: = B(e2 It ~(1--2)g)/b(e2 Ir ~ Ig ) Are Well Repro-mentioning

confidence: 99%

See 2 more Smart Citations

Coulomb excitation of230Th with32S,84Kr and142Nd projectiles

Kulessa

Briançon

Lefèbvre

et al. 1989

Z. Physik A - Atomic Nuclei

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“…This transition has an energy of 146.5 keV and with the intensities quoted in [5] the 146.5 keV ),-ray should have an intensity of 15 (7) in the 23~ decay, whereas we obtain an upper limit of 0.4 (a similar discrepancy was found earlier [7] for a proposed 5-~3-transition with an energy of l l5keV). Gerl et al [16] obtained an estimate of B(E2,2 +~0~ +)/ B (E2, 2~ + ~0 + ) between 0 and ,-~ 7 from the impact-parameter dependence of the ),-ray intensities in their Coulomb-excitation study. This would yield I~ (147 keV)< 0.5 in the 23~ decay.…”

Section: M1=(2+im(ez Z)[o+)-4m2 Andmentioning

confidence: 98%

Experimental investigation of vibrational excitations in230Th

Ackermann

Baltzer

Freitag

et al. 1994

Z. Physik A - Hadrons and Nuclei

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Abstract. Nuclear levels in 23~ have been investigatedin the fl decay of 23~ the a3~ pnT) reaction and the 232Th(p, t) reaction. The K'=0~ -, 2 + , and 2 3 bands with band heads at 635, 781, and 1010 keV were observed up to the 8 +, 9 +, and 7 + levels, respectively. A second excited 0 + level was identified at 1297 keV which might be interpreted as the usual fl shape-oscillation. The branching ratios of the E2 transitions from the 0~-, 2~, and 2+ bands are explained in the framework of the rotational model by taking into account the coupling of these bands with the ground-state band, and the coupling between the 0~ + and 2~ + band. A strong enhancement of E2 transitions from the 2 + to the 0 + band reported earlier is not confirmed. For the octupole vibrations with K ~ = 0-, 1 -, and 2-the E 1 branching ratios are analyzed in terms of the Coriolis coupling of these bands. An almost complete experimental set of E1 transition moments from these negative-parity bands to the 0 § 0~, and 2~-bands was g obtained. It is suggested that octupole correlations might be important in explaining these E 1 moments.

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