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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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Cross sections of the <math><mrow><mmultiscripts><mi>Rb</mi><mprescripts/><none/><mn>83</mn></mmultiscripts><mo>(</mo><mi>p</mi><mo>,</mo><mi>γ</mi><mo>)</mo><mmultiscripts><mi>Sr</mi><mprescripts/><none/><mn>84</mn></mmultiscripts></mrow></math> and <math><mrow><mmultiscripts><mi>Kr</mi><mprescripts/><none/><mn>84</mn></mmultiscripts><mo>(</mo><mi>p</mi><mo>,</mo><mi>γ</mi><mo>)</mo><mmultiscripts><mi>Rb</mi><mprescripts/><none/><mn>85</mn></mmultiscripts></mrow></math> reactions at energies characteristic of the astrophysical <math><mi>γ</mi></math> process
/ Williams, M. (TRIUMF ; York U., England) ; Davids, B. (TRIUMF ; Simon Fraser U.) ; Lotay, G. (Surrey U.) ; Nishimura, N. (Wako, RIKEN ; Nishina Ctr., RIKEN) ; Rauscher, T. (Basel U. ; Hertfordshire U.) ; Gillespie, S.A. (TRIUMF ; Michigan State U.) ; Alcorta, M. (TRIUMF) ; Amthor, A.M. (Bucknell U.) ; Ball, G.C. (TRIUMF) ; Bhattacharjee, S.S. (TRIUMF) et al.
We have measured the cross section of the $^{83}$Rb(p,$\gamma)^{84}$Sr radiative capture reaction in inverse kinematics using a radioactive beam of $^{83}$Rb at incident energies of 2.4 and $2.7 A$ MeV. Prior to the radioactive beam measurement, the $^{84}$Kr(p,$\gamma)^{85}$Rb radiative capture reaction was measured in inverse kinematics using a stable beam of $^{84}$Kr at an incident energy of $2.7 A$ MeV. [...]
arXiv:2303.10282.-
2023-03-13 - 10 p.
- Published in : Phys. Rev. C 107 (2023) 035803
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Axial and triaxial degrees of freedom in $^{72}$Zn
/ Hellgartner, S (Munich, Tech. U.) ; Mücher, D (Cologne U. ; Guelph U. ; TRIUMF) ; Wimmer, K (Darmstadt, GSI ; Madrid, Inst. Estructura Materia ; Tokyo U.) ; Bildstein, V (Guelph U.) ; Egido, J L (Madrid, Autonoma U.) ; Gernhäuser, R (Munich, Tech. U.) ; Krücken, R (LBNL, NSD) ; Nowak, A K (Munich, Tech. U.) ; Zielinska, M (IRFU, Saclay) ; Bauer, C (Darmstadt, Tech. U.) et al.
The unstable N=42 nucleus 72Zn has been studied using multiple safe Coulomb excitation in inverse kinematics. The experiment was performed at the REX-ISOLDE facility at CERN making first use of the silicon detector array C-REX in combination with the γ-ray spectrometer Miniball. [...]
2023 - 8 p.
- Published in : Phys. Lett. B 841 (2023) 137933
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High-precision half-life determination of $^{14}$O via direct $\beta $ counting
/ Sharma, S. (Regina U.) ; Grinyer, G.F. (Regina U.) ; Ball, G.C. (TRIUMF) ; Leslie, J.R. (Queen's U., Kingston) ; Svensson, C.E. (Guelph U.) ; Ali, F.A. (Guelph U. ; Sulaimaniya U.) ; Andreoiu, C. (Simon Fraser U., Dept. Chem.) ; Bernier, N. (TRIUMF ; British Columbia U. ; Western Cape U. ; Zululand U.) ; Bhattacharjee, S.S. (TRIUMF) ; Bildstein, V. (Guelph U.) et al.
The half-life of the superallowed Fermi $\beta^+$ emitter $^{14}$O was determined to high precision via a direct $\beta$ counting experiment performed at the Isotope Separator and Accelerator (ISAC) facility at TRIUMF. The result, $T_{1/2}$($^{14}$O) = 70619.2(76) ms, is consistent with, but is more precise than, the world average obtained from 11 previous measurements. [...]
arXiv:2204.06668.-
2022-05-03 - 8 p.
- Published in : Eur. Phys. J. A 58 (2022) 83
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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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Shape dynamics in neutron-rich Kr isotopes: Coulomb excitation of $^{92}Kr$, $^{94}Kr$ and $^{96}Kr$
/ Albers, M (Cologne U.) ; Nomura, K (Cologne U.) ; Warr, N (Cologne U.) ; Blazhev, A (Cologne U.) ; Jolie, J (Cologne U.) ; Mücher, D (Munich, Tech. U.) ; Bastin, B (KU Leuven, FET) ; Bauer, C (Darmstadt, Tech. U.) ; Bernards, C (Yale U.) ; Bettermann, L (Cologne U.) et al.
We report on the study of excited states in $^{92,94,96}Kr$ populated via projectile Coulomb excitation at safe energies. The radioactive ion beams at energies of 2.85 MeV/u were delivered by the REX-ISOLDE facility at CERN and impinged on self-supporting $^{194,196}Pt$ targets. [...]
Elsevier, Elsevier, 2013 - 28 p.
- Published in : Nucl. Phys. A 899 (2013) 1-28
- Published in : Nucl. Phys. A 947 (2016) 260-262
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Microscopic structure of coexisting $0^+$ states in $^{68}$Ni probed via two-neutron transfer
/ Flavigny, F (Orsay, IPN ; KU Leuven, Dept. Phys. Astron.) ; Elseviers, J (KU Leuven, Dept. Phys. Astron.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Bauer, C (Darmstadt, Tech. Hochsch.) ; Bildstein, V (Guelph U.) ; Blazhev, A (Cologne U.) ; Brown, B A (Michigan State U., NSCL) ; De Witte, H (KU Leuven, Dept. Phys. Astron.) ; Diriken, J (KU Leuven, Dept. Phys. Astron. ; SCK-CEN, Mol) ; Fedosseev, V N (CERN) et al.
The structure of low-spin states originating from shape-coexisting configurations in $^{68}_{40}$Ni$_{28}$ was directly probed via the two-neutron transfer reaction $^{66}$Ni$(t,p)^{68}$Ni in inverse kinematics using a radioactive ion beam on a radioactive target. The direct feeding to the first excited 0$^+$ state was measured for center-of-mass angles 4°–16° and amounts to an integral of 4.2(16)% relative to the ground state. [...]
2019 - 6 p.
- Published in : Phys. Rev. C 99 (2019) 054332
Article from SCOAP3: PDF;
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Coulomb Excitation of $^{142}$Xe
/ Henrich, C (Darmstadt, Tech. U.) ; Kröll, Th (Darmstadt, Tech. U.) ; Arnswald, K (Cologne U.) ; Berger, C (Munich, Tech. U.) ; Berner, C (Munich, Tech. U.) ; Berry, T (Surrey U.) ; Bildstein, V (Guelph U.) ; Cederkäll, J (Lund U. (main)) ; Cox, D (Jyvaskyla U.) ; de Angelis, G (INFN, Legnaro) et al.
The even–even nucleus $^{142}$Xe lies north-east of the doubly magic $^{132}$Sn on the neutron-rich side of the nuclear chart. In order to gain further information on the octupole collectivity and the evolution of quadrupole collectivity in this region, a “safe” Coulomb excitation experiment was carried out at the new HIE-ISOLDE facility (CERN) at the end of 2016. [...]
2018 - 5 p.
- Published in : Acta Phys. Pol. B 49 (2018) 529-533
Fulltext: PDF;
In : 35th Mazurian Lakes Conference on Physics : Exotic Nuclei : Laboratories for Fundamental Laws of Nature, Piaski, Poland, 3 - 9 Sep 2017, pp.529-533
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Coulomb excitation of (31)Mg
/ Seidlitz, M ; Mucher, D ; Reiter, P ; Bildstein, V ; Blazhev, A ; Bree, N ; Bruyneel, B ; Cederkall, J ; Clement, E ; Davinson, T et al.
/MINIBALL ; REX-ISOLDE
The ground state properties of 31 Mg indicate a change of nuclear shape at N=19 with a deformed Jπ=1/2+ intruder state as a ground state, implying that 31 Mg is part of the “island of inversion”. The collective properties of excited states were the subject of a Coulomb excitation experiment at REX-ISOLDE, CERN, employing a radioactive 31 Mg beam. [...]
2011 - 6 p.
- Published in : Phys. Lett. B 700 (2011) 181-186
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Study of bound states in $^{10}Be$ by one neutron removal reactions of $^{11}Be$
/ Johansen, Jacob G (Aarhus U.) ; Bildstein, V (Munich, Tech. U.) ; Borge, M J G (CERN ; Madrid, Inst. Estructura Materia) ; Cubero, M (Madrid, Inst. Estructura Materia) ; Diriken, J (Leuven U.) ; Elseviers, J (Leuven U.) ; Fraile, L M (Madrid U.) ; Fynbo, H O U (Aarhus U.) ; Gaffney, L P (Liverpool U.) ; Gernhäuser, R (Munich, Tech. U.) et al.
The bound states of (10)Be have been studied by removing single neutrons from $^{11}Be$ nuclei. A 2.8 MeV $u^{–1}$ beam of $^{11}Be$was produced at ISOLDE, CERN and directed on to both proton and deuteron targets inducing one-neutron removal reactions. [...]
2017 - 12 p.
- Published in : J. Phys. G 44 (2017) 044009
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