First observation of very neutron-deficient Ce-122

J.F. Smith; CJ Chiara; MP Carpenter; HJ Chantler; PTW Choy; CN Davids; M Devlin; JL Durell; DB Fossan; SJ Freeman; RVF Janssens; NS Kelsall; T Koike; DR LaFosse; ES Paul; P Reiter; DG Sarantites; D Seweryniak; K Starosta; R Wadsworth; AN Wilson; PH Heenen

doi:10.1016/j.physletb.2005.08.035

First observation of very neutron-deficient Ce-122

J.F. Smith, CJ Chiara, MP Carpenter, HJ Chantler, PTW Choy, CN Davids, M Devlin, JL Durell, DB Fossan, SJ Freeman, RVF Janssens, NS Kelsall, T Koike, DR LaFosse, ES Paul, P Reiter, DG Sarantites, D Seweryniak, K Starosta, R WadsworthAN Wilson, PH Heenen

Physics

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

Abstract

Excited states have been identified in the very neutron-deficient Ce-122 nucleus. This is the first observation of this nucleus and its excited states. The ground-state rotational band has been observed up to spin 14 h. The band has been assigned to 122Ce by detecting gamma rays in coincidence with evaporated charged particles and neutrons. The E(2(1)+) value suggests a rather large ground-state deformation of beta(2) = 0.35, in good agreement with Hartree-Fock-Bogoliubov (HFB) mean-field calculations. The aligned angular momentum of the band has been studied and is compared with those of the neighboring even-even cerium isotopes, and to Woods-Saxon cranking calculations. The non-observation of the pi(h(11/2))(2) alignment until at least 0.4 MeV/h is consistent with the extracted value of beta(2.) (c) 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	203-211
Number of pages	9
Journal	Physics Letters B
Volume	625
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2005.08.035
Publication status	Published - 13 Oct 2005

Keywords

STATES
ISOTOPES
MASS REGION
DEFORMATION
DETECTORS
GAMMASPHERE
QUADRUPOLE
HIGH-SPIN
EVEN-EVEN NUCLEI
BANDS

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10.1016/j.physletb.2005.08.035

Cite this

Smith, J. F., Chiara, CJ., Carpenter, MP., Chantler, HJ., Choy, PTW., Davids, CN., Devlin, M., Durell, JL., Fossan, DB., Freeman, SJ., Janssens, RVF., Kelsall, NS., Koike, T., LaFosse, DR., Paul, ES., Reiter, P., Sarantites, DG., Seweryniak, D., Starosta, K., ... Heenen, PH. (2005). First observation of very neutron-deficient Ce-122. Physics Letters B, 625(3-4), 203-211. https://doi.org/10.1016/j.physletb.2005.08.035

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title = "First observation of very neutron-deficient Ce-122",

abstract = "Excited states have been identified in the very neutron-deficient Ce-122 nucleus. This is the first observation of this nucleus and its excited states. The ground-state rotational band has been observed up to spin 14 h. The band has been assigned to 122Ce by detecting gamma rays in coincidence with evaporated charged particles and neutrons. The E(2(1)+) value suggests a rather large ground-state deformation of beta(2) = 0.35, in good agreement with Hartree-Fock-Bogoliubov (HFB) mean-field calculations. The aligned angular momentum of the band has been studied and is compared with those of the neighboring even-even cerium isotopes, and to Woods-Saxon cranking calculations. The non-observation of the pi(h(11/2))(2) alignment until at least 0.4 MeV/h is consistent with the extracted value of beta(2.) (c) 2005 Elsevier B.V. All rights reserved.",

keywords = "STATES, ISOTOPES, MASS REGION, DEFORMATION, DETECTORS, GAMMASPHERE, QUADRUPOLE, HIGH-SPIN, EVEN-EVEN NUCLEI, BANDS",

author = "J.F. Smith and CJ Chiara and MP Carpenter and HJ Chantler and PTW Choy and CN Davids and M Devlin and JL Durell and DB Fossan and SJ Freeman and RVF Janssens and NS Kelsall and T Koike and DR LaFosse and ES Paul and P Reiter and DG Sarantites and D Seweryniak and K Starosta and R Wadsworth and AN Wilson and PH Heenen",

year = "2005",

month = oct,

day = "13",

doi = "10.1016/j.physletb.2005.08.035",

language = "English",

volume = "625",

pages = "203--211",

journal = "Physics Letters B",

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Smith, JF, Chiara, CJ, Carpenter, MP, Chantler, HJ, Choy, PTW, Davids, CN, Devlin, M, Durell, JL, Fossan, DB, Freeman, SJ, Janssens, RVF, Kelsall, NS, Koike, T, LaFosse, DR, Paul, ES, Reiter, P, Sarantites, DG, Seweryniak, D, Starosta, K, Wadsworth, R, Wilson, AN & Heenen, PH 2005, 'First observation of very neutron-deficient Ce-122', Physics Letters B, vol. 625, no. 3-4, pp. 203-211. https://doi.org/10.1016/j.physletb.2005.08.035

TY - JOUR

T1 - First observation of very neutron-deficient Ce-122

AU - Smith, J.F.

AU - Chiara, CJ

AU - Carpenter, MP

AU - Chantler, HJ

AU - Choy, PTW

AU - Davids, CN

AU - Devlin, M

AU - Durell, JL

AU - Fossan, DB

AU - Freeman, SJ

AU - Janssens, RVF

AU - Kelsall, NS

AU - Koike, T

AU - LaFosse, DR

AU - Paul, ES

AU - Reiter, P

AU - Sarantites, DG

AU - Seweryniak, D

AU - Starosta, K

AU - Wadsworth, R

AU - Wilson, AN

AU - Heenen, PH

PY - 2005/10/13

Y1 - 2005/10/13

N2 - Excited states have been identified in the very neutron-deficient Ce-122 nucleus. This is the first observation of this nucleus and its excited states. The ground-state rotational band has been observed up to spin 14 h. The band has been assigned to 122Ce by detecting gamma rays in coincidence with evaporated charged particles and neutrons. The E(2(1)+) value suggests a rather large ground-state deformation of beta(2) = 0.35, in good agreement with Hartree-Fock-Bogoliubov (HFB) mean-field calculations. The aligned angular momentum of the band has been studied and is compared with those of the neighboring even-even cerium isotopes, and to Woods-Saxon cranking calculations. The non-observation of the pi(h(11/2))(2) alignment until at least 0.4 MeV/h is consistent with the extracted value of beta(2.) (c) 2005 Elsevier B.V. All rights reserved.

AB - Excited states have been identified in the very neutron-deficient Ce-122 nucleus. This is the first observation of this nucleus and its excited states. The ground-state rotational band has been observed up to spin 14 h. The band has been assigned to 122Ce by detecting gamma rays in coincidence with evaporated charged particles and neutrons. The E(2(1)+) value suggests a rather large ground-state deformation of beta(2) = 0.35, in good agreement with Hartree-Fock-Bogoliubov (HFB) mean-field calculations. The aligned angular momentum of the band has been studied and is compared with those of the neighboring even-even cerium isotopes, and to Woods-Saxon cranking calculations. The non-observation of the pi(h(11/2))(2) alignment until at least 0.4 MeV/h is consistent with the extracted value of beta(2.) (c) 2005 Elsevier B.V. All rights reserved.

KW - STATES

KW - ISOTOPES

KW - MASS REGION

KW - DEFORMATION

KW - DETECTORS

KW - GAMMASPHERE

KW - QUADRUPOLE

KW - HIGH-SPIN

KW - EVEN-EVEN NUCLEI

KW - BANDS

U2 - 10.1016/j.physletb.2005.08.035

DO - 10.1016/j.physletb.2005.08.035

M3 - Article

SN - 0370-2693

VL - 625

SP - 203

EP - 211

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -