Decreasing Collectivity in Smoothly Terminating Bands in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">A</mml:mi><mml:mspace/><mml:mi>∼</mml:mi><mml:mn>110</mml:mn></mml:math>Region

Wadsworth, R.; Clark, R. M.; Cameron, J. A.; Fossan, D. B.; Hibbert, I. M.; Janzen, V. P.; Krücken, R.; Lane, G. J.; Lee, I. Y.; Macchiavelli, A. O.; Parry, C. M.; Sears, J. M.; Smith, J. F.; Afanasjev, A. V.; Ragnarsson, I.

doi:10.1103/physrevlett.80.1174

Cited by 50 publications

(26 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These bands have been theoretically explained as representing a slow drift of the nuclear shape from collective prolate (γ ∼ 0 • ) to noncollective oblate (γ ∼ 60 • ) over many units of spin. This interpretation has been experimentally verified following the measurement of lifetimes of levels in the N = 58 isotones 108 Sn and 109 Sb [6]. Similar measurements in 112 Te [7] have also confirmed the concept of particle-hole induced collectivity in this mass region.…”

Section: Introductionsupporting

confidence: 69%

γ-ray spectroscopy of neutron-deficientTe110. II. High-spin smooth-terminating structures

et al. 2007

Self Cite

View full text Add to dashboard Cite

High-spin states have been populated in 110 52 Te via 58 Ni( 58 Ni,α2pγ ) reactions at 240 and 250 MeV. The Gammasphere γ -ray spectrometer was used in conjunction with the Microball charged-particle detector. The high-spin (I > 30) collective level scheme of 110 Te, up to ∼45h, is discussed in this paper. Four new decoupled ( I = 2) high-spin structures have been observed for the first time, together with two strongly coupled ( I = 1) bands. These bands all show the characteristics of smooth band termination, and are discussed within the framework of the cranked Nilsson-Strutinsky approach.

show abstract

Section: Introductionsupporting

confidence: 69%

γ-ray spectroscopy of neutron-deficientTe110. II. High-spin smooth-terminating structures

et al. 2007

Self Cite

View full text Add to dashboard Cite

show abstract

“…These rotational bands show marginal decrease of Q t with increasing spin. This decrease is much smaller [5] in comparison with other smooth terminating bands, like 62 Zn [16] and 109 Sb [17,18]. The Q top t value obtained in the fitting procedure of F(τ) is the smallest one which provides agreement with the experimental curve.…”

Section: Methodssupporting

confidence: 72%

Lifetimes of high-spin states in 74Kr

Valiente-Dobón¹,

Svensson

Steinhardt³

et al. 2006

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. High-spin states in 74 36 Kr 38 were studied using the 40 Ca( 40 Ca,α2p) 74 Kr fusion evaporation reaction at a beam energy of 165 MeV with GAMMASPHERE and MICROBALL and at a beam energy of 185 MeV with EUROBALL and ISIS multi-detector arrays. Lifetimes of the high-spin states for the ground-state band and the favoured negative-parity band have been determined using the Doppler-shift attenuation method. The deduced transition quadrupole moments show a marginal decrease as a function of spin, suggesting that the rotational bands do not terminate at the maximum spin I max .

show abstract

“…A characteristic feature of such bands is a large decrease in their dynamic moment of inertia (J (2) ), to approximately a third of the rigid-body value, as the rotational frequencies approach 1 MeV/ . More recently, lifetime studies in 108 Sn and 109 Sb have shown a smooth decline in B(E2) values with spin for the higher lying states [5]. This has been interpreted as due to a gradual change in the shape of the nucleus from collective prolate at low spins to a noncollective oblate at high spins, associated with the alignment of the angular momentum vectors of the valance nucleons with the rotational axis.…”

Section: Introductionmentioning

confidence: 95%

Experimental study of the πh 11/2 band in 113Sb

Ganguly¹,

Banerjee

Dey

et al. 2011

Pramana - J Phys

View full text Add to dashboard Cite

In the present work, the excited states of 113 Sb were populated in the 100 Mo( 20 Ne, p6n) reaction at a beam energy of 136 MeV. States only up to 59/2 − were observed in the J = 2 band. Mean lifetimes for the five states (from 4460 to 7998 keV) were measured for the first time using Doppler shift attenuation method. An upper limit of the lifetime (0.14 ps) was estimated for the 9061 keV, 47/2 − state. The B(E2) values, derived from the present lifetime results, correspond to a large quadrupole deformation of β 2 = 0.32. The observed reduction in the experimental B(E2) values for the 918.4 keV (spin 39/2 − → 35/2 − ) and 985 keV (spin 43/2 − → 39/2 − ) transitions may be interpreted as due to the proton alignement in the g 7/2 orbital. The dynamic moment of inertia was observed to be about half of the rigid body value at the highest observed frequency.

show abstract

Decreasing Collectivity in Smoothly Terminating Bands in theA∼110Region

Cited by 50 publications

References 15 publications

γ-ray spectroscopy of neutron-deficientTe110. II. High-spin smooth-terminating structures

γ-ray spectroscopy of neutron-deficientTe110. II. High-spin smooth-terminating structures

Lifetimes of high-spin states in 74Kr

Experimental study of the πh 11/2 band in 113Sb

Contact Info

Product

Resources

About