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$^{178}\mathrm{Hg}$ and asymmetric fission of neutron-deficient pre-actinides
/ Jhingan, A. (IUCAA, Pune) ; Schmitt, C. (Strasbourg, IPHC) ; Lemasson, A. (GANIL) ; Biswas, S. (GANIL) ; Kim, Y.H. (IBS, Daejeon, CENS) ; Ramos, D. (GANIL) ; Andreyev, A.N. (York U., England ; CERN ; JAERI, Tokai) ; Curien, D. (Strasbourg, IPHC) ; Ciemała, M. (Cracow, INP) ; Clément, E. (GANIL) et al.
Fission at low excitation energy is an ideal playground to probe the impact of nuclear structure on nuclear dynamics. While the importance of structural effects in the nascent fragments is well-established in the (trans-)actinide region, the observation of asymmetric fission in several neutron-deficient pre-actinides can be explained by various mechanisms. [...]
arXiv:2211.01879.-
2022-10-19 - 9 p.
- Published in : Phys. Rev. C 106 (2022) 044607
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Experimental Evidence for Common Driving Effects in Low-Energy Fission from Sublead to Actinides
/ Schmitt, C (Strasbourg, IPHC) ; Lemasson, A (GANIL) ; Schmidt, K H (Erzhausen, Germany) ; Jhingan, A (IUAC, New Delhi) ; Biswas, S (GANIL) ; Kim, Y H (Laue-Langevin Inst.) ; Ramos, D (GANIL) ; Andreyev, A N (York U., England ; JAERI, Tokai ; CERN) ; Curien, D (Strasbourg, IPHC) ; Ciemala, M (Cracow, INP) et al.
Isotopic distributions of fragments from fission of the neutron-deficient $^{178}$Hg nuclide are reported. This experimental observable is obtained for the first time in the region around lead using an innovative approach based on inverse kinematics and the coincidence between the large acceptance magnetic spectrometer VAMOS++ and a new detection arm close to the target. [...]
2021 - 6 p.
- Published in : Phys. Rev. Lett. 126 (2021) 132502
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3.
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$β$-delayed fission of $^{180}$Tl
/ Elseviers, J ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Huyse, M (Leuven U.) ; Van Duppen, P (Leuven U.) ; Antalic, S (Comenius U.) ; Barzakh, A (St. Petersburg, INP) ; Bree, N (Leuven U.) ; Cocolios, T E (CERN ; Leuven U.) ; Comas, V F (Darmstadt, GSI) ; Diriken, J (Leuven U.) et al.
The detailed analysis of the β-delayed fission data of $^{180}$Tl is presented. The experiment was performed by producing a pure beam of $^{180}$Tl by means of highly selective resonance laser ionization followed by mass separation with the ISOLDE (CERN, Geneva) isotope separator. [...]
2013 - 13 p.
- Published in : Phys. Rev. C
- Published in : Phys. Rev. C
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4.
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First observation of the competing fission modes in the neutron-deficient sub-lead region
/ Tsekhanovich, I. (CENBG, Gradignan) ; Andreyev, A.N. (York U., England ; JAEA, Ibaraki ; CERN) ; Nishio, K. (JAEA, Ibaraki) ; Denis-Petit, D. (CENBG, Gradignan) ; Hirose, K. (JAEA, Ibaraki) ; Makii, H. (JAEA, Ibaraki) ; Matheson, Z. (Michigan State U., East Lansing (main)) ; Morimoto, K. (Nishina Ctr., RIKEN) ; Morita, K. (Nishina Ctr., RIKEN ; Kyushu U., Fukuoka (main)) ; Nazarewicz, W. (Michigan State U., East Lansing (main)) et al.
Fragment mass distributions from fission of excited compound nucleus $^{178}$Pt have been deduced from the measured fragment velocities. The $^{178}$Pt nucleus was created at the JAEA tandem facility in a complete fusion reaction $^{36}$Ar + $^{142}$Nd, at beam energies of 155, 170 and 180 MeV. [...]
arXiv:1804.01832.-
2019-03-10 - 6 p.
- Published in : Phys. Lett. B 790 (2019) 583-588
Article from SCOAP3: PDF; Fulltext: PDF;
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5.
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Detailed $\alpha$-decay study of $^{180}\mathrm{Tl}$
/ Andel, B (Comenius U.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki ; CERN) ; Antalic, S (Comenius U.) ; Barzakh, A (St. Petersburg, INP) ; Bree, N (Leuven U.) ; Cocolios, T E (Leuven U. ; CERN) ; Comas, V F (Darmstadt, GSI) ; Diriken, J (Leuven U.) ; Elseviers, J (Leuven U.) ; Fedorov, D V (St. Petersburg, INP) et al.
A detailed $\alpha$-decay spectroscopy study of $^{180}\mathrm{Tl}$ has been performed at ISOLDE (CERN). $Z$-selective ionization by the Resonance Ionization Laser Ion Source (RILIS) coupled to mass separation provided a high-purity beam of $^{180}\mathrm{Tl}$. [...]
2017 - 11 p.
- Published in : Phys. Rev. C 96 (2017) 054327
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6.
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Strengths and limitations of the surrogate reaction method to access neutron-induced cross sections of actinides
/ Marini, P (CENBG, Gradignan) ; Ducasse, Q (CENBG, Gradignan ; CEA Cadarache) ; Jurado, B (CENBG, Gradignan) ; Aiche, M (CENBG, Gradignan) ; Mathieu, L (CENBG, Gradignan) ; Barreau, G (CENBG, Gradignan) ; Czajkowski, S (CENBG, Gradignan) ; Tsekhanovich, I (CENBG, Gradignan) ; Tornyi, T (Oslo U.) ; Gorgen, A (Oslo U.) et al.
Geneva : CERN, 2015
Published version from CERN: PDF;
In : 14th International Conference on Nuclear Reaction Mechanisms, Villa Monastero, Varenna, Italy, 15 - 19 Jun 2015, pp.195
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7.
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In-source laser spectroscopy of mercury isotopes
/ Gaffney, Liam Paul (KU Leuven) ; Day Goodacre, Thomas (CERN-ISOLDE ; The University of Manchester) ; Andreyev, Andrei (The University of York) ; Seliverstov, Maxim (PNPI, Gatchina ; CERN-ISOLDE) ; Althubiti, N (The University of Manchester) ; Andel, B (Comenius University, Bratislava) ; Antalic, S (Comenius University, Bratislava) ; Atanasov, D (Max-Planck-Institut für Kernphysik, Heidelberg) ; Barzakh, A E (PNPI, Gatchina) ; Blaum, K (Max-Planck-Institut für Kernphysik, Heidelberg) et al.
CERN-INTC-2014-060 ; INTC-P-424.
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2014.
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8.
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$\gamma$-ray Energy Spectra and Multiplicities from the Neutron-induced Fission of $^{235}$U using STEFF.
/ Smith, Gavin (The University of Manchester) ; Wright, Tobias (The University of Manchester) ; Billowes, Jon (The University of Manchester) ; Ryan, James (The University of Manchester) ; Warren, Stuart (The University of Manchester) ; Gurrrero, Carlos (CERN, Universidad de Sevilla, Sevilla, Spain) ; Tassan-Got, Laurent (IPN, Université Paris-Sud, ORSAY, France) ; Pollitt, Andrew (Institut Laue-Langevin, Grenoble, France) ; Serot, Olivier (CEA-Cadarache, France) ; Tsekhanovich, Igor (Université de Bordeaux, France)
CERN-INTC-2014-004 ; INTC-P-405.
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2014.
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9.
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Shape coexistence in $^{180}$Hg studied through the $\beta$ decay of $^{180}$Tl
/ Elseviers, J (Leuven U.) ; Tsekhanovich, I (CENBG, Gradignan) ; Diriken, J (Leuven U.) ; Patronis, N (Leuven U. ; Ioannina U.) ; Koster, U (Laue-Langevin Inst.) ; Franchoo, S (Orsay, IPN) ; Vermote, S (Gent U.) ; Bree, N (Leuven U.) ; Veselsky, M (Bratislava, Inst. Phys.) ; Huyse, M (Leuven U.) et al.
The beta(+)/EC decay of (180)Tl and excited states in the daughter nucleus (180)Hg have been investigated at the CERN On-Line Isotope Mass Separator (ISOLDE) facility. Many new low-lying energy levels were observed in (180)Hg, of which the most significant are the 0(2)(+) at 419.6 keV and the 2(2)(+) at 601.3 keV. [...]
2011
- Published in : Phys. Rev. C 84 (2011) 034307
APS Published version, local copy: PDF;
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10.
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New type of asymmetric fission in proton-rich nuclei
/ Andreyev, A N (Leuven U. ; West Scotland U. ; Scottish U. Research Reactor Ctr.) ; Elseviers, J (Leuven U.) ; Huyse, M (Leuven U.) ; Van Duppen, P (Leuven U.) ; Antalic, S (Comenius U.) ; Barzakh, A (St. Petersburg, INP) ; Bree, N (Leuven U.) ; Cocolios, T E (Leuven U.) ; Comas, V F (Darmstadt, GSI) ; Diriken, J (Leuven U.) et al.
A very exotic process of ${\beta}$-delayed fission of $^{180}$Tl is studied in detail by using resonant laser ionization with subsequent mass separation at ISOLDE (CERN). In contrast to common expectations, the fission-fragment mass distribution of the post-${\beta}$-decay daughter nucleus $^{180}$Hg (N/Z=1.25) is asymmetric. [...]
2010 - 5 p.
- Published in : Phys. Rev. Lett. 105 (2010) 252502
APS Published version, local copy: PDF;
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