Excitations of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Sm</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>144</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>in (<i>p</i>,<i>p</i>’)

Müller-Zanotti, E.; Hertenberger, R.; Kader, H.; Hofer, Donald C.; Graw, G.; Cǎta-Danil, G.; Lazzari, G.; Pf, Bortignon

doi:10.1103/physrevc.47.2524

Cited by 11 publications

(3 citation statements)

References 14 publications

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“…[1].The B(E3) $ values themselves were either taken directly from the references, or calculated from the deformation parameter P (or the deformation length 8= PR). The expression for this calculation is [34] B(E3)$Z A ' = KE3 (8) B(E3)T=(3ZR p/47'), (10) XB(E3) $ XE XB(E3) T (9) and obtain the constants K and r/ given in Eq. (8) Table I).…”

Section: Details Of the Analysismentioning

confidence: 99%

Are octupole vibrations harmonic?

et al. 1995

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The anharmonicity of octupole vibrations is deduced over a wide range of Z and A through the examination of summed B(E3) 1' values for all 3 states in a given nuclide versus the centroid energy for those states. Data obtained with the (p, p'), (d, d'), and (nn') , reactions are used, as opposed to an earlier study based on Coulomb excitation and lifetime data. Results of the new analysis support earlier observations of significant anharmonicity, but leave open the possibility of greater harmonicity than was previously supposed. Fits to the experimental data are discussed within the framework of the hydrodynamical model and possible mechanisms for the observed behavior are suggested. PACS number(s): 21.10.Re, 23.20.Js, 21.60.Ev

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Section: Details Of the Analysismentioning

confidence: 99%

Are octupole vibrations harmonic?

et al. 1995

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“…However, double-phonon excitations have been found in the neighbouring nuclei, i.e. 144 Sm [38,39,40,41], 146 Sm [43], and 147 Sm [42]. We therefore repeat the same calculations by assuming the double-octupole excitations in 148 Sm (the solid lines).…”

Section: O + 148 Sm Reaction: Comparison With Experimental Datamentioning

confidence: 95%

“…Consequently despite the fact that the first 3 − state of 208 Pb has a large quadrupole moment, which indicates a significant anharmonic effect in octupole vibrations [33,34,35,36], a direct study of the anharmonic properties in multi-octupole phonon spectra has not been possible for a long time. Only in recent years, convincing evidence have been reported for doubleoctupole-phonon states, as well as double-phonon states built from single octupole and quadrupole phonon states, in some nuclei, e.g., 208 Pb [37], 144 Sm [38,39,40,41 [43], and 148 Gd [44,45].…”

Section: Introductionmentioning

confidence: 99%

Excitation of nuclear anharmonic vibrations in heavy-ion fusion reactions

1998

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We discuss the effects of multi-phonon excitations on heavy-ion fusion reactions at energies near and below the Coulomb barrier, focusing especially on the role of anharmonicities. We carry out a systematic study of those effects on the excitation function of the fusion cross section and on the fusion barrier distribution, by using the vibrational limit of the interacting boson model. We also analyze the recently measured high-precision data of the 16 O + 148 Sm fusion reaction with this model and discuss the anharmonic properties of the quadrupole as well as the octupole vibrations in 148 Sm. Negative and positive static quadrupole moments are deduced for the first 2 + and 3 − states in 148 Sm, respectively. It is shown that the fusion barrier distribution strongly depends on the sign of the quadrupole moments, suggesting that subbarrier fusion reactions offer an alternative method to extract the static quadrupole moments of phonon states in spherical nuclei.PACS number(s): 25.70. Jj, 21.60.Fw, 21.10.Ky, 27.60.+j

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62-Samarium

Sukhoruchkin

Soroko

Landolt-Börnstein - Group I Elementary Particles, Nuclei and Atoms

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Excitations ofSm144in (p,p’)

Cited by 11 publications

References 14 publications

Are octupole vibrations harmonic?

Are octupole vibrations harmonic?

Excitation of nuclear anharmonic vibrations in heavy-ion fusion reactions

62-Samarium

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