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The half-life of $^{221}$Fr in Si and Au at 4K and at mK temperatures
/ Wauters, F. (Leuven U.) ; Verstichel, B. (Leuven U. ; CERN) ; Breitenfeldt, M. (Leuven U.) ; De Leebeeck, V. (Leuven U.) ; Kozlov, V.Yu. (Leuven U.) ; Kraev, I. (Leuven U.) ; Roccia, S. (Leuven U.) ; Soti, G. (Leuven U.) ; Tandecki, M. (Leuven U.) ; Traykov, E. (Leuven U.) et al.
The half-life of the $\alpha$ decaying nucleus $^{221}$Fr was determined in different environments, i.e. embedded in Si at 4 K, and embedded in Au at 4 K and about 20 mK. [...]
arXiv:1010.6250.-
2010 - 6 p.
- Published in : Phys. Rev. C 82 (2010) 064317
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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First detection and energy measurement of recoil ions following beta decay in a Penning trap with the WITCH experiment
/ Beck, M. (Munster U.) ; Coeck, S. (Leuven U.) ; Kozlov, V.Yu. (KIT, Karlsruhe) ; Breitenfeldt, M. (Leuven U.) ; Delahaye, P. (CERN) ; Friedag, P. (Munster U.) ; Herbane, M. (Leuven U.) ; Herlert, A. (CERN) ; Kraev, I.S. (Leuven U.) ; Mader, J. (Munster U.) et al.
The WITCH experiment (Weak Interaction Trap for CHarged particles) will search for exotic interactions by investigating the beta-neutrino angular correlation via the measurement of the recoil energy spectrum after beta decay. As a first step the recoil ions from the beta-minus decay of 124In stored in a Penning trap have been detected. [...]
arXiv:1008.0207.-
2011 - 9 p.
- Published in : Eur. Phys. J. A 47 (2011) 45
Fulltext: PDF; External link: Preprint
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Magnetic moment of $^{104}$Ag$^m$ and the hyperfine magnetic field of Ag in Fe using nuclear magnetic resonance on oriented nuclei
/ Golovko, V.V. (Leuven U.) ; Kraev, I.S. (Leuven U.) ; Phalet, T. (Leuven U.) ; Delaure, B. (Leuven U.) ; Beck, M. (Leuven U.) ; Kozlov, V.Yu. (Leuven U.) ; Coeck, S. (Leuven U.) ; Wauters, F. (Leuven U.) ; Herzog, P. (Bonn U., HISKP) ; Tramm, Ch. (Bonn U., HISKP) et al.
Nuclear magnetic resonance (NMR/ON) measurements with beta- and gamma-ray detection have been performed on oriented Ag-104(g,m) nuclei with the NICOLE He-3-He-4 dilution refrigerator setup at ISOLDE/CERN. For Ag-104(g) (I-pi = 5(+)) the gamma-NMR/ON resonance signal was found at nu = 266.70(5) MHz. [...]
arXiv:1006.5885.-
2010 - 12 p.
- Published in : Phys. Rev. C 81 (2010) 054323
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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Precision measurements of the $^{60}$Co $\beta$-asymmetry parameter in search for tensor currents in weak interactions
/ Wauters, F (Leuven U.) ; Kraev, I S (Leuven U.) ; Zákoucký, D (Rez, Nucl. Phys. Inst.) ; Beck, M (Leuven U.) ; Breitenfeldt, M (Leuven U.) ; De Leebeeck, V (Leuven U.) ; Golovko, V V (Leuven U.) ; Kozlov, V Yu (Leuven U.) ; Phalet, T (Leuven U.) ; Roccia, S (Leuven U.) et al.
The $\beta$-asymmetry parameter $\widetilde{A}$ for the Gamow-Teller decay of $^{60}$Co was measured by polarizing the radioactive nuclei with the brute force low-temperature nuclear-orientation method. The $^{60}$Co activity was cooled down to milliKelvin temperatures in a $^3$He-$^4$He dilution refrigerator in an external 13 T magnetic field. [...]
arXiv:1005.5034.-
2010 - 20 p.
- Published in : Phys. Rev. C 82 (2010) 055502
External link: Preprint
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The WITCH experiment : Acquiring the first recoil ion spectrum
/ Kozlov, V.Yu. (Leuven U.) ; Beck, M. (Munster U.) ; Coeck, S. (Leuven U.) ; Delahaye, P. (CERN) ; Friedag, P. (Munster U.) ; Herbane, M. (Leuven U.) ; Herlert, A. (CERN) ; Kraev, I.S. (Leuven U.) ; Tandecki, M. (Leuven U.) ; Van Gorp, S. (Leuven U.) et al.
The standard model of the electroweak interaction describes beta-decay in the well-known V-A form. Nevertheless, the most general Hamiltonian of a beta-decay includes also other possible interaction types, e.g. [...]
arXiv:0807.3421.-
2008 - 11 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 266 (2008) 4515-4520
Fulltext: PDF; External link: Preprint
In : 15th International Conference on Electromagnetic Isotope Separators and Techiques Related to their Applications, Deauville, France, 24 - 29 Jun 2007, pp.4515-4520
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Ab initio simulations on the behavior of small ion clouds in the WITCH Penning trap system
/ Coeck, S ; Delauré, B ; Herbane, M ; Kozlov, V Yu ; Kraev, I S ; Tandecki, M ; Wauters, F ; Beck, M ; Delahaye, P (CERN) ; Herlert, A (CERN) et al.
Various ab initio simulations on the behavior of ion clouds consisting of a small number of positively charged ions stored in the WITCH double Penning trap system are described. A general description of the simulation code used is presented and the expected behavior of the particles in the first of the two Penning traps is discussed. [...]
2007
- Published in : Nucl. Instrum. Methods Phys. Res., A 574 (2007) 370-384
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Nuclear spin-lattice relaxation of Cu-62 at low temperatures in iron
/ Golovko, V V ; Golovko, V V (K.U.Leuven, Instituut voor Kern-en Stralingsfysica, Leuven, Belgium) ; Kraev, I S (K.U.Leuven, Instituut voor Kern-en Stralingsfysica, Leuven, Belgium) ; Phalet, T (K.U.Leuven, Instituut voor Kern-en Stralingsfysica, Leuven, Belgium) ; Severijns, N (K.U.Leuven, Instituut voor Kern-en Stralingsfysica, Leuven, Belgium) ; Vénos, D (Nuclear Physics Institute, ASCR, Czech Republic) ; Zakoucky, D (Nuclear Physics Institute, ASCR, Czech Republic) ; Herzog, P (Helmholtz-Institut fur Strahlen-und Kernphysik, Bonn, Germany) ; Tramm, C (Helmholtz-Institut fur Strahlen-und Kernphysik, Bonn, Germany) ; Köster, U (CERN) et al.
2006
- Published in : Phys. Rev. C 74 (2006) 044313
APS Published version, local copy: PDF;
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