Diverse collective excitations in Er-159 up to high spin

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Diverse collective excitations in Er-159 up to high spin. / Mustafa, M.; Ollier, J.; Simpson, J.; Riley, M. A.; Paul, E. S.; Wang, X.; Aguilar, A.; Carpenter, M. P.; Darby, I. G.; Hartley, D. J.; Janssens, R. V. F.; Kondev, F. G.; Lauritsen, T.; Nolan, P. J.; Petri, M.; Rees, J. M.; Revill, J. P.; Rigby, S. V.; Teal, C.; Thomson, J.; Unsworth, C.; Zhu, S.; Carlsson, Gillis; Ma, Hailiang; Mufti, Tajdar; Ragnarsson, Ingemar.

In: Physical Review C (Nuclear Physics), Vol. 84, No. 5, 2011.

Research output: Contribution to journalArticle

Harvard

Mustafa, M, Ollier, J, Simpson, J, Riley, MA, Paul, ES, Wang, X, Aguilar, A, Carpenter, MP, Darby, IG, Hartley, DJ, Janssens, RVF, Kondev, FG, Lauritsen, T, Nolan, PJ, Petri, M, Rees, JM, Revill, JP, Rigby, SV, Teal, C, Thomson, J, Unsworth, C, Zhu, S, Carlsson, G, Ma, H, Mufti, T & Ragnarsson, I 2011, 'Diverse collective excitations in Er-159 up to high spin', Physical Review C (Nuclear Physics), vol. 84, no. 5. https://doi.org/10.1103/PhysRevC.84.054320

APA

CBE

Mustafa M, Ollier J, Simpson J, Riley MA, Paul ES, Wang X, Aguilar A, Carpenter MP, Darby IG, Hartley DJ, Janssens RVF, Kondev FG, Lauritsen T, Nolan PJ, Petri M, Rees JM, Revill JP, Rigby SV, Teal C, Thomson J, Unsworth C, Zhu S, Carlsson G, Ma H, Mufti T, Ragnarsson I. 2011. Diverse collective excitations in Er-159 up to high spin. Physical Review C (Nuclear Physics). 84(5). https://doi.org/10.1103/PhysRevC.84.054320

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Author

Mustafa, M. ; Ollier, J. ; Simpson, J. ; Riley, M. A. ; Paul, E. S. ; Wang, X. ; Aguilar, A. ; Carpenter, M. P. ; Darby, I. G. ; Hartley, D. J. ; Janssens, R. V. F. ; Kondev, F. G. ; Lauritsen, T. ; Nolan, P. J. ; Petri, M. ; Rees, J. M. ; Revill, J. P. ; Rigby, S. V. ; Teal, C. ; Thomson, J. ; Unsworth, C. ; Zhu, S. ; Carlsson, Gillis ; Ma, Hailiang ; Mufti, Tajdar ; Ragnarsson, Ingemar. / Diverse collective excitations in Er-159 up to high spin. In: Physical Review C (Nuclear Physics). 2011 ; Vol. 84, No. 5.

RIS

TY - JOUR

T1 - Diverse collective excitations in Er-159 up to high spin

AU - Mustafa, M.

AU - Ollier, J.

AU - Simpson, J.

AU - Riley, M. A.

AU - Paul, E. S.

AU - Wang, X.

AU - Aguilar, A.

AU - Carpenter, M. P.

AU - Darby, I. G.

AU - Hartley, D. J.

AU - Janssens, R. V. F.

AU - Kondev, F. G.

AU - Lauritsen, T.

AU - Nolan, P. J.

AU - Petri, M.

AU - Rees, J. M.

AU - Revill, J. P.

AU - Rigby, S. V.

AU - Teal, C.

AU - Thomson, J.

AU - Unsworth, C.

AU - Zhu, S.

AU - Carlsson, Gillis

AU - Ma, Hailiang

AU - Mufti, Tajdar

AU - Ragnarsson, Ingemar

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

PY - 2011

Y1 - 2011

N2 - A spectroscopic investigation of the gamma decays from excited states in Er-159 has been performed to study the changing structural properties exhibited as ultrahigh spins (I > 60 (h) over bar) are approached. The nucleus of Er-159 was populated by the reaction Cd-116(Ca-48, 5n gamma) at a beam energy of 215 MeV, and the resulting gamma decays were studied using the Gammasphere spectrometer. New rotational bands and extensions to existing sequences were observed, which are discussed in terms of the cranked shell model, revealing a diverse range of quasiparticle configurations. At spins around 50 (h) over bar, there is evidence for a change from dominant prolate collective motion at the yrast line to oblate non-collective structures via the mechanism of band termination. A possible strongly deformed triaxial band occurs at these high spins, which indicates collectivity beyond 50 (h) over bar. The high-spin data are interpreted within the framework of cranked Nilsson-Strutinsky calculations.

AB - A spectroscopic investigation of the gamma decays from excited states in Er-159 has been performed to study the changing structural properties exhibited as ultrahigh spins (I > 60 (h) over bar) are approached. The nucleus of Er-159 was populated by the reaction Cd-116(Ca-48, 5n gamma) at a beam energy of 215 MeV, and the resulting gamma decays were studied using the Gammasphere spectrometer. New rotational bands and extensions to existing sequences were observed, which are discussed in terms of the cranked shell model, revealing a diverse range of quasiparticle configurations. At spins around 50 (h) over bar, there is evidence for a change from dominant prolate collective motion at the yrast line to oblate non-collective structures via the mechanism of band termination. A possible strongly deformed triaxial band occurs at these high spins, which indicates collectivity beyond 50 (h) over bar. The high-spin data are interpreted within the framework of cranked Nilsson-Strutinsky calculations.

U2 - 10.1103/PhysRevC.84.054320

DO - 10.1103/PhysRevC.84.054320

M3 - Article

VL - 84

JO - Physical Review C: covering nuclear physics

JF - Physical Review C: covering nuclear physics

SN - 2469-9985

IS - 5

ER -