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Evidence of oblate-...
Evidence of oblate-prolate shape coexistence in the strongly-deformed nucleus Cs-119
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- Zheng, K. K. (författare)
- Univ Paris Saclay, CNRS, IN2P3, IJCLab, F-91405 Orsay, France.;Chinese Acad Sci, Inst Modern Phys, Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China.;Chinese Acad Sci, Inst Modern Phys, Ctr Nucl Matter Sci, Lanzhou 730000, Peoples R China.
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- Petrache, C. M. (författare)
- Univ Paris Saclay, CNRS, IN2P3, IJCLab, F-91405 Orsay, France.
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- Cederwall, Bo, 1964- (författare)
- KTH,Kärnfysik
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- Aktas, Özge (författare)
- KTH,Kärnfysik
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- Ertoprak, Aysegul (författare)
- KTH,Kärnfysik
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- Zhang, Wei (författare)
- KTH,Fysik
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- Page, R. D. (författare)
- Univ Liverpool, Dept Phys, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
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Univ Paris Saclay, CNRS, IN2P3, IJCLab, F-91405 Orsay, France;Chinese Acad Sci, Inst Modern Phys, Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China.;Chinese Acad Sci, Inst Modern Phys, Ctr Nucl Matter Sci, Lanzhou 730000, Peoples R China. Univ Paris Saclay, CNRS, IN2P3, IJCLab, F-91405 Orsay, France. (creator_code:org_t)
- Elsevier BV, 2021
- 2021
- Engelska.
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 822
- Relaterad länk:
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Prolate-oblate shape coexistence close to the ground state in the strongly-deformed proton-rich A approximate to 120nuclei is reported for the first time. One of the four reported bands in Cs-119, built on a 11/2- state at 670 keV, consists of nearly degenerate signature partners, and has properties which unequivocally indicate the strongly-coupled pi h(11/2)[505]11/2(-) configuration associated with oblate shape. Together with the decoupled pi h(11/2[)541]3/2(-) band built on the 11/2- prolate state at 110 keV, for which a half-life of T-1/2 = 55(5) mu shas been measured, the new bands bring evidence of shape coexistence at low spin in the proton-rich strongly deformed A approximate to 120 nuclei, a phenomenon predicted since long time, but not yet observed. Calculations using the particle-number conserving cranked shell model and two dimensional tilted axis cranking covariant density functional theory support and well reproduce the observed oblate and prolate coexisting low-energy states in Cs-119.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- Nuclear reaction:Ni-58(Zn-64
- 3p)Cs-119
- Measured gamma gamma gamma-coincidences
- Angular correlations
- Linear polarization
- Model calculation
- Oblate-prolate coexistence
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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