Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins

Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins

Rotation-aligned isomeric states and associated oblate collective sequences are established in even Pt isotopes. Reduced E2 transition probabilities for the deexcitation of the 12+ isomers indicate an abrupt and unexpected quenching of oblate collectivity around neutron number N=120. Structure and s...

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Main Authors: S.K. Tandel, S.G. Wahid, P. Chowdhury, R.V.F. Janssens, M.P. Carpenter, T.L. Khoo, F.G. Kondev, T. Lauritsen, C.J. Lister, D. Seweryniak, S. Zhu
Format: Article
Language:English
Published: Elsevier 2015-11-01
Series:Physics Letters B
Subjects:
Isomers
Shape evolution
Oblate
Collectivity
Rotation alignment
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315006942
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spelling doaj-6536f5c9aa7e432ba83880d5e9e795812020-11-25T00:32:40ZengElsevierPhysics Letters B0370-26931873-24452015-11-01750C22522910.1016/j.physletb.2015.09.019Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spinsS.K. Tandel0S.G. Wahid1P. Chowdhury2R.V.F. Janssens3M.P. Carpenter4T.L. Khoo5F.G. Kondev6T. Lauritsen7C.J. Lister8D. Seweryniak9S. Zhu10UM-DAE Centre for Excellence in Basic Sciences, Mumbai 400098, IndiaUM-DAE Centre for Excellence in Basic Sciences, Mumbai 400098, IndiaDepartment of Physics, University of Massachusetts Lowell, Lowell, MA 01854, USAArgonne National Laboratory, Argonne, IL 60439, USAArgonne National Laboratory, Argonne, IL 60439, USAArgonne National Laboratory, Argonne, IL 60439, USAArgonne National Laboratory, Argonne, IL 60439, USAArgonne National Laboratory, Argonne, IL 60439, USADepartment of Physics, University of Massachusetts Lowell, Lowell, MA 01854, USAArgonne National Laboratory, Argonne, IL 60439, USAArgonne National Laboratory, Argonne, IL 60439, USARotation-aligned isomeric states and associated oblate collective sequences are established in even Pt isotopes. Reduced E2 transition probabilities for the deexcitation of the 12+ isomers indicate an abrupt and unexpected quenching of oblate collectivity around neutron number N=120. Structure and shape evolution at high spin in the heaviest stable isotopes is found to be markedly different from observations in the lighter ones.http://www.sciencedirect.com/science/article/pii/S0370269315006942IsomersShape evolutionOblateCollectivityRotation alignment
collection DOAJ
language English
format Article
sources DOAJ
author S.K. Tandel
S.G. Wahid
P. Chowdhury
R.V.F. Janssens
M.P. Carpenter
T.L. Khoo
F.G. Kondev
T. Lauritsen
C.J. Lister
D. Seweryniak
S. Zhu
spellingShingle S.K. Tandel
S.G. Wahid
P. Chowdhury
R.V.F. Janssens
M.P. Carpenter
T.L. Khoo
F.G. Kondev
T. Lauritsen
C.J. Lister
D. Seweryniak
S. Zhu
Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins
Physics Letters B
Isomers
Shape evolution
Oblate
Collectivity
Rotation alignment
author_facet S.K. Tandel
S.G. Wahid
P. Chowdhury
R.V.F. Janssens
M.P. Carpenter
T.L. Khoo
F.G. Kondev
T. Lauritsen
C.J. Lister
D. Seweryniak
S. Zhu
author_sort S.K. Tandel
title Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins
title_short Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins
title_full Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins
title_fullStr Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins
title_full_unstemmed Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins
title_sort isomers and oblate rotation in pt isotopes: delineating the limit for collectivity at high spins
publisher Elsevier
series Physics Letters B
issn 0370-2693
1873-2445
publishDate 2015-11-01
description Rotation-aligned isomeric states and associated oblate collective sequences are established in even Pt isotopes. Reduced E2 transition probabilities for the deexcitation of the 12+ isomers indicate an abrupt and unexpected quenching of oblate collectivity around neutron number N=120. Structure and shape evolution at high spin in the heaviest stable isotopes is found to be markedly different from observations in the lighter ones.
topic Isomers
Shape evolution
Oblate
Collectivity
Rotation alignment
url http://www.sciencedirect.com/science/article/pii/S0370269315006942
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