Multiphonon longitudinal wobbling in 127Xe

Chakraborty, S.; Sharma, H. P.; Tiwary, S. S.; Majumder, Chiranjib; Gupta, A. K.; Banerjee, P.; Ganguly, S.; Rai, S.; Pragati,; Mayank, .; Kumar, Suresh; Kumar, Ashok; Palit, R.; Bhattacharjee, S. S.; Singh, R. P.; Muralithar, S.

doi:10.1016/j.physletb.2020.135854

Cited by 36 publications

(19 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Frauendorf and Dönau [16] interpreted this behavior as the odd particle aligned perpendicular to the principal axis with the largest MOI, which was defined as the transverse wobbling (TW). In addition, 127 Xe [17],…”

Section: Introductionmentioning

confidence: 99%

Influence of moments of inertia on transverse wobbling mode in odd-mass nuclei

Zhang,

Qi,

Wang

et al. 2022

Preprint

View full text Add to dashboard Cite

The reported transverse wobbling band in odd-mass 105 Pd has been reinvestigated by the triaxial particle rotor model. Employing several different parameter sets of moment of inertia (MOI), all of the calculations could be in good agreement with the experimental data, which show distinct modes of rotational excitation, respectively. These modes are sensitive to the ratio between the MOI at intermediate and short axis. With the increase of this ratio, the axis which the total angular momentum wobbles about is changed from the short axis to the intermediate axis. The obtained oscillation modes from calculations are found to be the quantum tunneling between two orientations of angular momentum, which is different from the expected precession. The mechanism of rotational bands in 105 Pd might be a competition between different modes, which show the complexity of the transverse wobbling mode in real odd-mass nuclei.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of moments of inertia on transverse wobbling mode in odd-mass nuclei

Zhang,

Qi,

Wang

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…More recent experiments have shown new evidence for wobbling bands in odd-mass nuclei of several other mass regions, observed in the low-spin regime, e.g., 135 Pr [10,11], 133 La [12], 105 Pd [13], 127 Xe [14], 187 Au [15], and 183 Au [16], as well as two-quasiparticle wobbling bands at medium spins in 130 Ba [17] and 136 Nd [18]. The wobbling interpretation of these newly found bands was based on the prediction by the quasiparticle-plus-triaxialrotor (QTR) model, in which the moment of inertia of the triaxial core is assumed to be hydrodynamic and the odd quasiparticle aligned with principal axes, within the so-called frozen approximation [19].…”

mentioning

confidence: 98%

“…There are two types of wobbling motion that can occur in odd-mass nuclei [19]: longitudinal wobbling (LW), where an odd particle is aligned parallel to the axis of largest moment of inertia, and transverse wobbling (TW), with the odd particle aligned perpendicular to that axis. This wobbling picture has been applied to interpret the observed low-spin yrare bands in the aforementioned nuclei, e.g., bands in 135 Pr [10,11], 105 Pd [13], and 183 Au [16] were attributed to TW bands, and those in 133 La [12], 127 Xe [14], and 187 Au [15] to LW bands. At higher spins, the triaxial deformation can become stable to such a degree that the wobbling motion is realized, for instance, in the two-quasiparticle TW bands in the even-even nuclei 130 Ba [17] and 136 Nd [18].…”

mentioning

confidence: 99%

“…The low-lying structure of 127 Xe consists of the yrast band with bandhead energy E x (11/2 − 1 ) = 12 keV, band 2 built on the 9/2 − 1 state, which is the lowest negativeparity state, and the second excited band 3 built on the 13/2 − 1 state at E x = 495 keV, which was assigned to be LW band [14]. Band B2 in the IBFM consisting of the 9/2 the theoretical counterpart of band 3.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Questioning the wobbling interpretation of low-spin bands in $γ$-soft nuclei within the interacting boson-fermion model

Nomura,

Petrache

2021

Preprint

View full text Add to dashboard Cite

The interpretation of the recently reported low-lying excited bands in γ-soft odd-mass nuclei as wobbling bands is examined in terms of the interacting boson-fermion model that is based on the universal nuclear energy density functional. The predicted mixing ratios of the ∆I = 1 electric quadrupole (E2) to magnetic dipole (M 1) transition rates between yrast bands and those yrare bands previously interpreted as wobbling bands in 135 Pr, 133 La, 127 Xe, and 105 Pd nuclei are consistently smaller in magnitude than the experimental values on which the wobbling interpretation is based. These calculated mixing ratios indicate the predominant M 1 character of the transitions from the yrare bands under consideration to the yrast bands, being in agreement with the new experimental data, which involve both the angular distribution and linear polarization measurements. The earlier wobbling assignments are severely questioned.

show abstract

“…The common view on these bands is that the alignment of the odd-proton angular momentum, i 13/2 drives the system to very large stable deformation [17]. In the meantime, several neighboring odd-nuclei were identified as wobblers i. e., 161,165,167 Lu [3][4][5][6][7]10], and recently the nuclei 135 Pr [8,9], 167 Ta [10,11], 187 Au [12], 130 Ba [13], 105 Pd [14], 127 Xe [15], and 183 Au [16].…”

mentioning

confidence: 99%

Parity Partner Bands in $^{163}$Lu: A novel approach for describing the negative parity states from a triaxial super-deformed band

Poenaru,

Raduta

2021

Preprint

View full text Add to dashboard Cite

The wobbling spectrum of 163 Lu is described through a novel approach, starting from a triaxial rotor model within a semi-classical picture, and obtaining a new set of equations for all four rotational bands that have wobbling character. Redefining the band structure in the present model is done by adopting the concepts of Signature Partner Bands and Parity Partner Bands. Indeed, describing a wobbling spectrum in an even-odd nucleus through signature and parity quantum numbers is an inedited interpretation of the triaxial super-deformed bands.

show abstract

Multiphonon longitudinal wobbling in 127Xe

Cited by 36 publications

References 41 publications

Influence of moments of inertia on transverse wobbling mode in odd-mass nuclei

Influence of moments of inertia on transverse wobbling mode in odd-mass nuclei

Questioning the wobbling interpretation of low-spin bands in $γ$-soft nuclei within the interacting boson-fermion model

Parity Partner Bands in $^{163}$Lu: A novel approach for describing the negative parity states from a triaxial super-deformed band

Contact Info

Product

Resources

About