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Excited states in $^{217}$Ra populated in the α decay of $^{221}$Th
/ Parr, E (West Scotland U. ; SUPA, UK) ; Smith, J F (West Scotland U. ; SUPA, UK) ; Greenlees, P T (Jyvaskyla U.) ; Auranen, K (Jyvaskyla U.) ; Chapman, R (West Scotland U. ; SUPA, UK) ; Cullen, D M (Manchester U.) ; Grahn, T (Jyvaskyla U.) ; Grocutt, L (West Scotland U. ; SUPA, UK) ; Herzáň, A (Jyvaskyla U. ; Bratislava, Inst. Phys.) ; Herzberg, R D (Liverpool U.) et al.
Fine structure in the α decay of $^{221}_{90}$Th, populating excited states in $^{217}_{88}$Ra, was studied using αγ-coincidence spectroscopy. Two α-decay branches from $^{221}$Th have been newly observed, with $E_{\alpha} \mathrm{(keV)} [b_{\alpha}(\%)]=7951(8)[0.14(3)]$ and $8247(3)[1.51(12)]$, together with three previously known branches. [...]
2020 - 12 p.
- Published in : Phys. Rev. C 102 (2020) 054335
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2.
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In-beam γ -ray and electron spectroscopy of $^{249,251}$Md
/ Briselet, R. (IRFU, Saclay) ; Theisen, Ch. (IRFU, Saclay) ; Sulignano, B. (IRFU, Saclay) ; Airiau, M. (IRFU, Saclay) ; Auranen, K. (Jyvaskyla U.) ; Cox, D.M. (Jyvaskyla U. ; Liverpool U.) ; Déchery, F. (IRFU, Saclay ; Strasbourg, IPHC) ; Drouart, A. (IRFU, Saclay) ; Favier, Z. (IRFU, Saclay) ; Gall, B. (Strasbourg, IPHC) et al.
The odd-$Z$ $^{251}$Md nucleus was studied using combined $\gamma$-ray and conversion-electron in-beam spectroscopy. Besides the previously observed rotational band based on the $[521]1/2^-$ configuration, another rotational structure has been identified using $\gamma$-$\gamma$ coincidences. [...]
arXiv:2001.10235.-
2020-07-09 - 16 p.
- Published in : Phys. Rev. C 102 (2020) 014307
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3.
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First observation of high-K isomeric states in $^{249}$Md and $^{251}$Md
/ Goigoux, T. (IRFU, Saclay) ; Theisen, Ch. (IRFU, Saclay) ; Sulignano, B. (IRFU, Saclay) ; Airiau, M. (IRFU, Saclay) ; Auranen, K. (Jyvaskyla U.) ; Badran, H. (Jyvaskyla U. ; STUK, Helsinki) ; Briselet, R. (IRFU, Saclay) ; Calverley, T. (Jyvaskyla U. ; Liverpool U.) ; Cox, D. (Jyvaskyla U. ; Liverpool U. ; Lund U.) ; Déchery, F. (IRFU, Saclay) et al.
Decay spectroscopy of the odd-proton nuclei $^{249}$Md and $^{251}$Md has been performed. High-$K$ isomeric states were identified for the first time in these two nuclei through the measurement of their electromagnetic decay. [...]
arXiv:2107.00517.-
2021-12-01 - 14 p.
- Published in : Eur. Phys. J. A 57 (2021) 321
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4.
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Nuclear structure of $^{181}$Au studied via $\beta^+$/EC decay of $^{181}$Hg at ISOLDE
/ Sedlák, M (Bratislava, Inst. Phys.) ; Venhart, M (Bratislava, Inst. Phys.) ; Wood, J L (Bratislava, Inst. Phys.) ; Matoušek, V (Bratislava, Inst. Phys.) ; Balogh, M (Bratislava, Inst. Phys.) ; Boston, A J (Liverpool U.) ; Cocolios, T E (Liverpool U.) ; Harkness-Brennan, L J (Liverpool U.) ; Herzberg, R D (Liverpool U.) ; Joss, D T (Liverpool U.) et al.
The $\beta ^+$/EC decay of mass separated samples of $^{181}$Hg was studied employing the TATRA spectrometer at the ISOLDE facility at CERN. The decay scheme was constructed for the first time. [...]
2020 - 10 p.
- Published in : Eur. Phys. J. A 56 (2020) 161
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5.
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Probing intruder configurations in 188Pb using Coulomb excitation
/ Kibedi, Tibor (ANU Canberra) ; Lane, Greg (ANU Canberra) ; Konki, Joonas (CERN-ISOLDE) ; Stora, Thierry (CERN-ISOLDE) ; Rodriguez, Jose Alberto (CERN-ISOLDE) ; Labiche, Marc (STFC Daresbury Laboratory) ; Papadakis, Philippos (STFC Daresbury Laboratory) ; Kröll, Thorsten (TU Darmstadt) ; Davinson, Tom (University of Edinburgh) ; Bastin, Beyhan (GANIL) et al.
CERN-INTC-2019-023 ; INTC-SR-080.
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2019.
Fulltext
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Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of $^{182}$Hg, $^{184}$Hg, $^{186}$Hg and $^{188}$Hg
/ Wrzosek-Lipska, K (Warsaw U., Heavy Ion Lab ; Leuven U.) ; Rezynkina, K (Leuven U. ; U. Strasbourg) ; Bree, N (Leuven U.) ; Zielińska, M (Warsaw U., Heavy Ion Lab ; IRFU, Saclay) ; Gaffney, L P (Liverpool U. ; Leuven U. ; CERN ; West Scotland U.) ; Petts, A (Liverpool U.) ; Andreyev, A (Leuven U. ; York U., England) ; Bastin, B (Leuven U. ; GANIL) ; Bender, M (Lyon, IPN) ; Blazhev, A (Cologne U.) et al.
The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass $^{182-188}$ Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. [...]
2019 - 23 p.
- Published in : Eur. Phys. J. A 55 (2019) 130
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7.
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The SPEDE spectrometer
/ Papadakis, P. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Cox, D.M. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; O'Neill, G.G. (Liverpool U. ; Western Cape U.) ; Borge, M.J.G. (CERN) ; Butler, P.A. (Liverpool U.) ; Gaffney, L.P. (CERN) ; Greenlees, P.T. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Herzberg, R.D. (Liverpool U.) ; Illana, A. (Leuven U.) ; Joss, D.T. (Liverpool U.) et al.
The electron spectrometer, SPEDE, has been developed and will be employed in conjunction with the Miniball spectrometer at the HIE-ISOLDE facility, CERN. SPEDE allows for direct measurement of internal conversion electrons emitted in-flight, without employing magnetic fields to transport or momentum filter the electrons. [...]
arXiv:1709.07449.-
2018-03-12 - 8 p.
- Published in : Eur. Phys. J. A 54 (2018) 42
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New systematic features in the neutron-deficient Au isotopes
/ Venhart, M (Bratislava, Inst. Phys.) ; Wood, J L (Georgia Tech., Atlanta) ; Sedlák, M (Bratislava, Inst. Phys.) ; Balogh, M (Bratislava, Inst. Phys.) ; Bírová, M (Bratislava, Inst. Phys.) ; Boston, A J (Liverpool U.) ; Cocolios, T E (Manchester U. ; KU Leuven, Dept. Phys. Astron.) ; Harkness-Brennan, L J (Liverpool U.) ; Herzberg, R D (Liverpool U.) ; Holub, L (Bratislava, Inst. Phys.) et al.
A recently developed portable, on-line capability for γ-ray and conversion-electron spectroscopy, HIGH-TATRA is demonstrated with its application to the study of (183)Hg $\to $ (183)Au at ISOLDE. Key details of the low-energy level scheme of the neutron-deficient nuclide (183)Au populated in this decay are presented. [...]
2017 - 20 p.
- Published in : J. Phys. G 44 (2017) 074003
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Measurement of the E1/E3 phase in 226 Ra
/ Amzal, N (U. Liverpool (main)) ; Butler, P A (U. Liverpool (main)) ; Hawcroft, D (U. Liverpool (main)) ; Hammond, N J (U. Liverpool (main)) ; Herzberg, R -D (U. Liverpool (main)) ; Jones, G D (U. Liverpool (main)) ; Scholey, C (U. Liverpool (main)) ; Stezowski, O (U. Liverpool (main)) ; Czosnyka, T (Warsaw U., Heavy Ion Lab) ; Iwanicki, J (Warsaw U., Heavy Ion Lab) et al.
/ISOLDE
We report experimental attempts to determine the sign of the electric dipole moment (relative to the electric octupole moment) in the octupole deformed nucleus 226 Ra. Sensitivity to this quantity is observed in the measured yields of γ-ray transitions following very low energy Coulomb excitation..
2004 - 4 p.
- Published in : Nucl. Phys. A 734 (2004) 465-468
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10.
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Determination of the $B(E3,0^+ \rightarrow 3^-)$ strength in the octupole-correlated nuclei $^{142,144}$Ba using Coulomb excitation
/ Andreyev, Andrei (University of York) ; Barton, Charles (University of York) ; Blazhev, Andrey (University of Cologne) ; Butler, Peter Anthony (University of Liverpool) ; Cederkäll, Joakim (Lund University) ; Cline, Douglas (University of Rochester) ; Cocolios, Thomas Elias (KU Leuven) ; Danchev, Miroslav (Sofia University) ; Van Duppen, Piet (KU Leuven) ; Gaffney, Liam Paul (ISOLDE-CERN) et al.
CERN-INTC-2017-002 ; INTC-CLL-027.
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2017.
Fulltext - Original Document (INTC-P-348)
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