Medium- and high-spin band structure of the chiral-candidate nucleus<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>134</mml:mn></mml:msup></mml:math>Pr

Tímár, J.; Starosta, K.; Kuti, I.; Sohler, D.; Fossan, D. B.; Koike, T.; Paul, E. S.; Boston, A. J.; Chantler, H. J.; Descovich, M.; Clark, R. M.; Cromaz, M.; Fallon, P.; Lee, I. Y.; Macchiavelli, A. O.; Chiara, C. J.; Wadsworth, R.; Hecht, A. A.; Almehed, D.; Frauendorf, S.

doi:10.1103/physrevc.84.044302

Cited by 19 publications

(12 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been found that the negative-parity band structure of 132 La is rather similar to that of its isotone 134 Pr, recently reported in Ref. [15]. This similarity can be used to assist in the determination of the band configurations in 132 La, and also to draw further conclusions for the level scheme of this nucleus.…”

Section: Discussionsupporting

confidence: 68%

“…In both nuclei, the ground-state spin-parity is 2 − , and a short I = 1 band (band 4 in 132 La and band 12 in 134 Pr [15]) is built on it. Also, in both nuclei a 6 − isomeric state exists close to the ground state with bands built on them.…”

Section: A Comparison With the Neighboring 134 Prmentioning

confidence: 99%

“…For 134 Pr, several new theoretical attempts have been made to explain the nature of the observed doublet structure [9,[12][13][14], but these have led to different conclusions. They all have concentrated on the doublet structure; however, very recently a third πh 11/2 νh −1 11/2 band was observed in 134 Pr [15] which could be a chiral partner of the previously known πh 11/2 νh −1 11/2 side band. This observation may initiate a rethinking of the present explanations.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Medium- and high-spin band structure of the chiral candidate132La

et al. 2013

Self Cite

View full text Add to dashboard Cite

Medium-and high-spin states of 132 La have been studied based on the data obtained from 100 Mo( 36 S, p3n) and 116 Cd( 23 Na, α3n) fusion-evaporation reactions using the EUROBALL and Gammasphere detector arrays, respectively. Triple-γ coincidence relations, angular correlations, and linear polarizations of the observed γ transitions have been deduced. The level scheme of 132 La has been considerably extended, and unambiguous spin and parity values have been assigned to most of the excited states. The configuration of one of the bands is πg 7/2 (h 11/2 ) 2 νh 11/2 instead of the previously thought πh 11/2 νh 11/2 ; thus its previously suggested magnetic rotational character cannot be upheld. The observed similarities between the level structures of 132 La and 134 Pr suggest the possible existence of a third πh 11/2 νh 11/2 band in 132 La that may show chiral features.

show abstract

Section: Discussionsupporting

confidence: 68%

Section: A Comparison With the Neighboring 134 Prmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Medium- and high-spin band structure of the chiral candidate132La

et al. 2013

Self Cite

View full text Add to dashboard Cite

show abstract

“…One of the most striking features was the observation of the nearly degenerate doublet bands built on the πh 11/2 ⊗ νh 11/2 configuration, interpreted as the manifestation of chiral symmetry breaking [1]. This phenomenon has been rather intensively investigated in recent years both experimentally [2][3][4][5][6][7][8] and theoretically [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Structure ofLa130at low and medium spins

et al. 2014

View full text Add to dashboard Cite

Low-and medium-spin states of the odd-odd nucleus 130 La were studied by in-beam and pulsed-beam γ -ray spectroscopy using the 121 Sb( 12 C,3n) and 116 Sn( 16 O,pn) fusion-evaporation reactions. The decay out of the πh 11/2 ⊗ νh 11/2 and πh 11/2 ⊗ νg 7/2 rotational structures to the ground state has been elucidated. Spin and parity values have been assigned to most of the newly observed states, as well as to the bandheads of the rotational bands. Two isomeric states were identified and placed in the level scheme, with the characteristics J π = 5 + , E x = 214.0 keV, T 1/2 = 0.76(9) μs and J π = 6 + , E x = 319.1 keV, T 1/2 = 33(1) ns. The magnetic and quadrupole interactions of the 6 + isomeric state have been investigated by the time-differential perturbed γ -ray angular distribution method. The g factor value, g(6 + ) = +0.48(3), and the quadrupole coupling constant in polycrystalline metallic Sn lattice, ν Q (6 + ) = 37(4) MHz, have been derived. The experimental data are compared with the predictions of two-quasiparticles plus rotor model calculations.

show abstract

“…3 identified in the recent Gammasphere study of 134 Pr. 5 The interpretation of the doublet bands in this nucleus is a debated and still an open question. The chiral interpretation proposed originally in Ref.…”

Section: Axial Rotation Of a Triaxial Rotormentioning

confidence: 99%

Opportunities for Collective Model and Chirality Studies at Triumf

Starosta

Chester

Hamamoto³

et al. 2011

Int. J. Mod. Phys. E

View full text Add to dashboard Cite

First predictions for a specific case of the particle-hole-core coupling model which takes advantage of symmetries of a triaxial rotor with γ = 90 • are reviewed. Results of the model calculations point towards existence of stable chiral geometry in specific configurations involving high-j orbitals. Next, experimental information on doublet bands built on unique parity, πh 11/2 νh 11/2 intruder states in odd-odd 134 Pr is discussed; in particular observed disagreements between electromagnetic transitions within the doublet structures which is pointed out as inconsistent with the simplest models. Finally, the unique experimental infrastructure developed at the Tri-University Meson Facility (TRIUMF) Canada's National Laboratory for Particle and Nuclear Physics is presented including a range of isotopes in the mass 130 region that are accessible as beams and which can possibly yield significant new information in investigations of nuclear chirality.

show abstract

Medium- and high-spin band structure of the chiral-candidate nucleus134Pr

Cited by 19 publications

References 59 publications

Medium- and high-spin band structure of the chiral candidate132La

Medium- and high-spin band structure of the chiral candidate132La

Structure ofLa130at low and medium spins

Opportunities for Collective Model and Chirality Studies at Triumf

Contact Info

Product

Resources

About