High-spin spectroscopy and quasiparticle alignments in 124,125Ce

J. F. Smith; V. Medina-Chico; C. J. Chiara; M. P. Carpenter; C. N. Davids; M. Devlin; J. L. Durell; D. B. Fossan; S. J. Freeman; R. V.F. Janssens; D. R. LaFosse; M. J. Leddy; P. Reiter; D. G. Sarantites; D. Seweryniak; K. Starosta; R. Wadsworth; A. N. Wilson; J. N. Wilson

doi:10.1103/PhysRevC.69.034339

High-spin spectroscopy and quasiparticle alignments in ^124,125Ce

J. F. Smith^*, V. Medina-Chico, C. J. Chiara, M. P. Carpenter, C. N. Davids, M. Devlin, J. L. Durell, D. B. Fossan, S. J. Freeman, R. V.F. Janssens, D. R. LaFosse, M. J. Leddy, P. Reiter, D. G. Sarantites, D. Seweryniak, K. Starosta, R. Wadsworth, A. N. Wilson, J. N. Wilson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

Rotational bands have been studied to high spins in the neutron-deficient ^124,125Ce nuclei. The nuclei were populated using the ⁶⁴Zn(⁶⁴Zn,2p2n)¹²⁴Ce and ⁶⁴Zn( ⁶⁴Zn,2pn)¹²⁵Ce reactions, with a beam energy of 260 MeV. High-fold γ-ray coincidence data were collected using the Gammasphere germanium-detector array. The Microball charged-particle detector array was used to provide channel selection. The previously established level structures of both ^124,125Ce have been extended to high spins (∼30ℏ), In addition, several new bands have been identified. The alignments of pairs of h_11/0/2 neutrons and protons are observed in both nuclei. The alignments are compared to the predictions of Woods-Saxon cranked shell model calculations and to the systematics of h_11/2 quasiparticle alignments in neighboring nuclei. The apparent ability of the cranked shell model to explain the h_11/2 neutron alignments in ^124,125Ce highlights the previously reported discrepancies between experiment and theory for the ¹²⁸Ce isotope and, to a lesser extent, ¹²⁶Ce.

Original language	English
Article number	034339
Pages (from-to)	034339-1-034339-20
Journal	Physical Review C - Nuclear Physics
Volume	69
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.69.034339
Publication status	Published - Mar 2004

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Smith, J. F., Medina-Chico, V., Chiara, C. J., Carpenter, M. P., Davids, C. N., Devlin, M., Durell, J. L., Fossan, D. B., Freeman, S. J., Janssens, R. V. F., LaFosse, D. R., Leddy, M. J., Reiter, P., Sarantites, D. G., Seweryniak, D., Starosta, K., Wadsworth, R., Wilson, A. N., & Wilson, J. N. (2004). High-spin spectroscopy and quasiparticle alignments in ^124,125Ce. Physical Review C - Nuclear Physics, 69(3), 034339-1-034339-20. Article 034339. https://doi.org/10.1103/PhysRevC.69.034339

@article{59c804195706468490014168f43ebc07,

title = "High-spin spectroscopy and quasiparticle alignments in 124,125Ce",

abstract = "Rotational bands have been studied to high spins in the neutron-deficient 124,125Ce nuclei. The nuclei were populated using the 64Zn(64Zn,2p2n)124Ce and 64Zn( 64Zn,2pn)125Ce reactions, with a beam energy of 260 MeV. High-fold γ-ray coincidence data were collected using the Gammasphere germanium-detector array. The Microball charged-particle detector array was used to provide channel selection. The previously established level structures of both 124,125Ce have been extended to high spins (∼30ℏ), In addition, several new bands have been identified. The alignments of pairs of h11/0/2 neutrons and protons are observed in both nuclei. The alignments are compared to the predictions of Woods-Saxon cranked shell model calculations and to the systematics of h11/2 quasiparticle alignments in neighboring nuclei. The apparent ability of the cranked shell model to explain the h11/2 neutron alignments in 124,125Ce highlights the previously reported discrepancies between experiment and theory for the 128Ce isotope and, to a lesser extent, 126Ce.",

author = "Smith, {J. F.} and V. Medina-Chico and Chiara, {C. J.} and Carpenter, {M. P.} and Davids, {C. N.} and M. Devlin and Durell, {J. L.} and Fossan, {D. B.} and Freeman, {S. J.} and Janssens, {R. V.F.} and LaFosse, {D. R.} and Leddy, {M. J.} and P. Reiter and Sarantites, {D. G.} and D. Seweryniak and K. Starosta and R. Wadsworth and Wilson, {A. N.} and Wilson, {J. N.}",

year = "2004",

month = mar,

doi = "10.1103/PhysRevC.69.034339",

language = "English",

volume = "69",

pages = "034339--1--034339--20",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

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Smith, JF, Medina-Chico, V, Chiara, CJ, Carpenter, MP, Davids, CN, Devlin, M, Durell, JL, Fossan, DB, Freeman, SJ, Janssens, RVF, LaFosse, DR, Leddy, MJ, Reiter, P, Sarantites, DG, Seweryniak, D, Starosta, K, Wadsworth, R, Wilson, AN & Wilson, JN 2004, 'High-spin spectroscopy and quasiparticle alignments in ^124,125Ce', Physical Review C - Nuclear Physics, vol. 69, no. 3, 034339, pp. 034339-1-034339-20. https://doi.org/10.1103/PhysRevC.69.034339

TY - JOUR

T1 - High-spin spectroscopy and quasiparticle alignments in 124,125Ce

AU - Smith, J. F.

AU - Medina-Chico, V.

AU - Chiara, C. J.

AU - Carpenter, M. P.

AU - Davids, C. N.

AU - Devlin, M.

AU - Durell, J. L.

AU - Fossan, D. B.

AU - Freeman, S. J.

AU - Janssens, R. V.F.

AU - LaFosse, D. R.

AU - Leddy, M. J.

AU - Reiter, P.

AU - Sarantites, D. G.

AU - Seweryniak, D.

AU - Starosta, K.

AU - Wadsworth, R.

AU - Wilson, A. N.

AU - Wilson, J. N.

PY - 2004/3

Y1 - 2004/3

N2 - Rotational bands have been studied to high spins in the neutron-deficient 124,125Ce nuclei. The nuclei were populated using the 64Zn(64Zn,2p2n)124Ce and 64Zn( 64Zn,2pn)125Ce reactions, with a beam energy of 260 MeV. High-fold γ-ray coincidence data were collected using the Gammasphere germanium-detector array. The Microball charged-particle detector array was used to provide channel selection. The previously established level structures of both 124,125Ce have been extended to high spins (∼30ℏ), In addition, several new bands have been identified. The alignments of pairs of h11/0/2 neutrons and protons are observed in both nuclei. The alignments are compared to the predictions of Woods-Saxon cranked shell model calculations and to the systematics of h11/2 quasiparticle alignments in neighboring nuclei. The apparent ability of the cranked shell model to explain the h11/2 neutron alignments in 124,125Ce highlights the previously reported discrepancies between experiment and theory for the 128Ce isotope and, to a lesser extent, 126Ce.

AB - Rotational bands have been studied to high spins in the neutron-deficient 124,125Ce nuclei. The nuclei were populated using the 64Zn(64Zn,2p2n)124Ce and 64Zn( 64Zn,2pn)125Ce reactions, with a beam energy of 260 MeV. High-fold γ-ray coincidence data were collected using the Gammasphere germanium-detector array. The Microball charged-particle detector array was used to provide channel selection. The previously established level structures of both 124,125Ce have been extended to high spins (∼30ℏ), In addition, several new bands have been identified. The alignments of pairs of h11/0/2 neutrons and protons are observed in both nuclei. The alignments are compared to the predictions of Woods-Saxon cranked shell model calculations and to the systematics of h11/2 quasiparticle alignments in neighboring nuclei. The apparent ability of the cranked shell model to explain the h11/2 neutron alignments in 124,125Ce highlights the previously reported discrepancies between experiment and theory for the 128Ce isotope and, to a lesser extent, 126Ce.

UR - http://www.scopus.com/inward/record.url?scp=2442585606&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.69.034339

DO - 10.1103/PhysRevC.69.034339

M3 - Article

SN - 0556-2813

VL - 69

SP - 034339-1-034339-20

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 034339

ER -

High-spin spectroscopy and quasiparticle alignments in ^124,125Ce

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