Harmonic Two-Phonon γ-Vibrational State in Neutron-Rich<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>106</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Mo

Guessous, A.; Schulz, N.; Phillips, W. R.; Ahmad, I.; Bentaleb, M.; Durell, J. L.; Jones, M.A.; Leddy, M. J.; Lubkiewicz, E.; Morss, Lester R.; Piepenbring, R.; Smith, A. G.; Urban, W.; Varley, B. J.

doi:10.1103/physrevlett.75.2280

Cited by 95 publications

(57 citation statements)

References 13 publications

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“…Such an extra binding could be due to higher collective effects in 110 Ru, as compared to 112 Pd. Indeed in this region there are particularly strong triaxial correlations, evolving from γ softness and triaxiality in neutron-rich Mo isotopes [29][30][31][32][33], via triaxial effects in Tc isotopes [19,[34][35][36][37], towards triaxial deformation in Ru isotopes [23,24,38]. As summarized in Ref.…”

Section: Positive-parity Levelsmentioning

confidence: 95%

Neutron configurations inPd113

et al. 2014

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Excited states in113 Pd, populated in β − decay of 113 Rh and in spontaneous fission of 248 Cm and 252 Cf have been studied by means of γ spectroscopy at the IGISOL facility of Jyväskylä University and using large arrays of Ge detectors Eurogam2 and Gammasphere, respectively. The position of the 11/2 − yrast excitation in 113 Pd, proposed recently at 166.1 keV by other authors, have been corrected to 98.9 keV. The decay of this level has been discussed, to explain the observed transition intensities. The 7/2 − member of the yrast, unique-parity configuration has been identified at 84.9 keV and a band on top of this level proposed. On top of the 1/2+, first excited state a band has been built and a new 3/2+ band head has been proposed at 151.9 keV. A possible oblate-shape origin of these low-energy bands heads has been discussed.

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Section: Positive-parity Levelsmentioning

confidence: 95%

Neutron configurations inPd113

et al. 2014

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“…[2] Skalski et al pointed to strong shape variations due to the predicted coexistence of prolate and oblate potential minima and a γ softness expected in Mo-Pd nuclei. Many examples of these phenomena have been observed experimentally in the 100 < A < 120 region, especially effects related to γ softness and triaxiality in neutron-rich Mo-Pd isotopes [4][5][6][7][8][9][10][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 98%

Excited levels in the multishaped Pd117 nucleus studied via β decay of Rh117

et al. 2018

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Monoisotopic samples of exotic, neutron-rich 117 Rh nuclei, produced in the proton-induced fission of 238 U and separated using the IGISOL mass separator coupled to the JYFLTRAP Penning trap, were used to perform β and γ coincidence spectroscopy of 117 Pd. The spin parity of the ground state of 117 Pd was determined to be 1/2 + and the 19.1 ms isomer at 203.2 keV was assigned a spin-parity 7/2 − . The 117 Rh β − -decay scheme was considerably extended, and various sequences of the levels were interpreted as resulting from the prolate, oblate, and triaxial nuclear shapes. Some of the β − decays were considered as the allowed Gamow-Teller transitions. The experimental distribution of Gamow-Teller strength is discussed.

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“…One example is the ␥ degree of freedom in the Mo isotopes, which is manifest by the observation of a spin-dependent triaxial deformation [13] and a harmonic two-phonon ␥-vibrational motion [14,15]. While the yrast bands of the Zr and Mo isotopes were extended to higher-spin states, the yrast states of the Ru and Pd isotopes were extended to the band crossing regions for the first time [7], providing an opportunity to study the interplay between single-particle and the collective degrees of freedom.…”

Section: Introductionmentioning

confidence: 99%

Triaxiality and the alignedh11∕2neutron orbitals in neutron-rich Zr and Mo isotopes

et al. 2004

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Neutron-rich Zr and Mo isotopes were populated as fission fragments produced by the 238 U͑␣, f͒ fusionfission reaction. The level schemes of these nuclei have been extended beyond the first band crossing region, which can be ascribed to the h 11/2 neutron pair alignment. The spin alignment and signature splitting for the h 11/2 orbitals in term of triaxiality is addressed. The crossing frequency of the aligned bands in even Zr and Mo isotopes can be reproduced well by calculations using the cranked shell model. Compared to the Zr isotopes, band crossings in Mo isotopes shift to a lower rotational frequency due to the emerging importance of the ␥ degree of freedom. Within the framework of particle-rotor model, the difference in the signature splitting observed for the h 11/2 bands between the odd Zr and Mo isotopes can be attributed to the triaxial degree of freedom in the Mo isotopes. The surprising shift of the band crossing to a higher rotational frequency in 106 Mo is interpreted as a manifestation of the deformed subshell closure at N = 64.

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Harmonic Two-Phonon γ-Vibrational State in Neutron-Rich106Mo

Cited by 95 publications

References 13 publications

Neutron configurations inPd113

Neutron configurations inPd113

Excited levels in the multishaped Pd117 nucleus studied via β decay of Rh117

Triaxiality and the alignedh11∕2neutron orbitals in neutron-rich Zr and Mo isotopes

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