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First Evidence of Axial Shape Asymmetry and Configuration Coexistence in <math display="inline"><mrow><mmultiscripts><mrow><mi>Zn</mi></mrow><mprescripts/><none/><mrow><mn>74</mn></mrow></mmultiscripts></mrow></math>: Suggestion for a Northern Extension of the <math display="inline"><mi>N</mi><mo>=</mo><mn>40</mn></math> Island of Inversion
/ Rocchini, M. (Guelph U.) ; Garrett, P.E. (Guelph U.) ; Zielínska, M. (IRFU, Saclay) ; Lenzi, S.M. (Padua U. ; INFN, Padua) ; Dao, D.D. (Strasbourg, IPHC) ; Nowacki, F. (Strasbourg, IPHC) ; Bildstein, V. (Guelph U.) ; MacLean, A.D. (Guelph U.) ; Olaizola, B. (TRIUMF ; CERN) ; Ahmed, Z.T. (Guelph U.) et al.
The excited states of $N=44$$^{74}$Zn were investigated via $\gamma$-ray spectroscopy following $^{74}$Cu $\beta$ decay. By exploiting $\gamma$-$\gamma$ angular correlation analysis, the $2_2^+$, $3_1^+$, $0_2^+$ and $2_3^+$ states in $^{74}$Zn were firmly established. [...]
arXiv:2302.07394.-
2023-03-24 - 6 p.
- Published in : Phys. Rev. Lett. 130 (2023) 122502
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Coulomb excitation of $^{222}$Rn
/ Spagnoletti, P (West Scotland U. ; Simon Fraser U., Dept. Chem.) ; Butler, P A (Liverpool U.) ; Gaffney, L P (Liverpool U. ; CERN) ; Abrahams, K (Western Cape U.) ; Bowry, M (West Scotland U. ; TRIUMF) ; Cederkäll, J (Lund U.) ; Chupp, T (U. Michigan, Ann Arbor) ; de Angelis, G (INFN, Legnaro) ; De Witte, H (Leuven U.) ; Garrett, P E (Guelph U.) et al.
The nature of quadrupole and octupole collectivity in $^{222}$Rn was investigated by determining the electric-quadrupole (E2) and octupole (E3) matrix elements using subbarrier, multistep Coulomb excitation. The radioactive $^{222}$Rn beam, accelerated to 4.23 MeV/u, was provided by the HIE-ISOLDE facility at CERN. [...]
2022 - 10 p.
- Published in : Phys. Rev. C 105 (2022) 024323
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Publisher Correction: The observation of vibrating pear-shapes in radon nuclei [doi: 10.1038/s41467-019-10494-5]
/ Butler, P A (Liverpool U.) ; Gaffney, L P (Liverpool U. ; CERN) ; Spagnoletti, P (West Scotland U.) ; Konki, J (CERN) ; Scheck, M (West Scotland U.) ; Smith, J F (West Scotland U.) ; Abrahams, K (Western Cape U.) ; Bowry, M (TRIUMF) ; Cederkäll, J (Lund U.) ; Chupp, T et al.
An amendment to this paper has been published and can be accessed via a link at the top of the paper..
2020 - 1 p.
- Published in : Nature Commun. 11 (2020) 5185
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Investigating shape coexistence in $^{80,82}$Sr \\with $\beta^+/EC$ decay spectroscopy
/ Bernier, Nikita (University of the Western Cape, South Africa ; University of Zululand, South Africa) ; Bucher, Daphney (University of the Western Cape, South Africa ; University of Zululand, South Africa) ; Orce, Nico (University of the Western Cape, South Africa) ; Evitts, L.J. (Bangor University, United Kingdom) ; Kibédi, T. (Australian National University, Australia) ; Garrett, P.E. (University of Guelph, Canada ; University of the Western Cape, South Africa) ; Rodrguez, T.R. (Universidad Autónoma de Madrid, E-28049 Madrid, Spain) ; Abrahams, K.J. (University of the Western Cape, South Africa) ; Akakpo, E.H. (University of the Western Cape, South Africa) ; Algora, A. (Instituto de Fsica Corpuscular, CSIC - Univ. Valencia, Spain) et al.
CERN-INTC-2020-071 ; INTC-P-586.
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2020.
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Addendum: The observation of vibrating pear-shapes in radon nuclei
/ Butler, P A (Liverpool U.) ; Gaffney, L P (Liverpool U. ; CERN) ; Spagnoletti, P (West Scotland U.) ; Konki, J (CERN) ; Scheck, M (West Scotland U.) ; Smith, J F (West Scotland U.) ; Abrahams, K (Western Cape U.) ; Bowry, M (TRIUMF) ; Cederkäll, J (Lund U.) ; Chupp, T (Michigan U.) et al.
2020
- Published in : Nature Commun. 11 (2020) 3560
Fulltext: PDF; External link: Fulltext from publisher
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Evolution of Octupole Deformation in Radium Nuclei from Coulomb Excitation of Radioactive $^{222}\mathrm{Ra}$ and $^{228}\mathrm{Ra}$ Beams
/ Butler, P.A. (U. Liverpool (main)) ; Gaffney, L.P. (U. Liverpool (main) ; CERN) ; Spagnoletti, P. (Paisley U.) ; Abrahams, K. (Western Cape U.) ; Bowry, M. (Paisley U. ; TRIUMF) ; Cederkäll, J. (Lund U.) ; de Angelis, G. (INFN, Legnaro) ; De Witte, H. (Leuven U.) ; Garrett, P.E. (Guelph U.) ; Goldkuhle, A. (Cologne U.) et al.
There is sparse direct experimental evidence that atomic nuclei can exhibit stable pear shapes arising from strong octupole correlations. In order to investigate the nature of octupole collectivity in radium isotopes, electric octupole ($E3$) matrix elements have been determined for transitions in $^{222,228}$Ra nuclei using the method of sub-barrier, multi-step Coulomb excitation. [...]
arXiv:2001.09681.-
2020-02-01 - 6 p.
- Published in : Phys. Rev. Lett. 124 (2020) 042503
Fulltext: PDF; Fulltext from publisher: PDF;
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7.
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The observation of vibrating pear-shapes in radon nuclei
/ Butler, P.A. (Liverpool U.) ; Gaffney, L.P. (Liverpool U. ; CERN) ; Spagnoletti, P. (West Scotland U.) ; Konki, J. (CERN) ; Scheck, M. (West Scotland U.) ; Smith, J.F. (West Scotland U.) ; Abrahams, K. (Western Cape U.) ; Bowry, M. (TRIUMF) ; Cederkäll, J. (Lund U.) ; Chupp, T. (Michigan U.) et al.
There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the standard model of particle physics. [...]
arXiv:2003.10147.-
2019-06-06 - 6 p.
- Published in : Nature Commun. 10 (2019) 2473
Fulltext: 2003.10147 - PDF; 7a6aa522dd658653207485bc1ee38876 - PDF; s41467-019-10494-5 - PDF;
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High-spin rotational structures in $^{76}Kr$
/ Valiente-Dobón, J J ; Svensson, C E ; Leary, C D O ; Ragnarsson, I ; Andreoiu, C ; Appelbe, D E ; Austin, R A E ; Ball, G C ; Cameron, J A ; Carpenter, M P et al.
DAPNIA-2005-35.-
Saclay : DAPNIA, 2005 - 13 p.
- Published in : Phys. Rev. C 71 (2005) 034311
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Lifetimes of high-spin states in 74Kr
/ Valiente-Dobón, J J ; Svensson, C E ; Steinhardt, T ; Afanasjev, A V ; Ragnarsson, I ; Andreoiu, C ; Austin, R A E ; Carpenter, M P ; Dashdorj, D ; De Angelis, G et al.
2006
- Published in : AIP Conf. Proc.: 831 (2006) , pp. 283-287
External link: Published version from AIP
In : International Conference on Frontiers in Nuclear Structures, Astrophysics and Reactions, Kos, Greece, 12 - 17 Sep 2005, pp.283-287
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Nuclear physics with fast neutrons at LANSCE/WNR: GEANIE and FIGARO
/ Devlin, M ; Aprahamian, A ; Becker, J A ; Bernstein, L A ; Fotiades, N ; Garrett, P E ; Haight, R C ; Johns, G D ; McGrath, C A ; McNabb, D P et al.
2000
In : 16th International Conference on the Application of Accelerators in Research and Industry, Denton, TX, USA, 1 - 5 Nov 2000, pp.309-312
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