NSR Query Results
Output year order : Descending NSR database version of May 2, 2024. Search: Author = V.De Leebeeck Found 5 matches. 2023SE01 Phys.Rev. C 107, 015502 (2023) N.Severijns, L.Hayen, V.De Leebeeck, S.Vanlangendonck, K.Bodek, D.Rozpedzik, I.S.Towner Ft values of the mirror β transitions and the weak-magnetism-induced current in allowed nuclear β decay RADIOACTIVITY 1n, 3H(β-); 11C, 13N, 15O, 17F, 19Ne, 21Na, 23Mg, 25Al, 27Si, 29P, 31S, 33Cl, 35Ar, 37K, 39Ca, 41Sc, 43Ti, 45V, 47Cr, 49Mn, 51Fe, 53Co, 55Ni, 57Cu, 59Zn, 61Ga, 63Ge, 65As, 67Se, 69Br, 71Kr, 73Rb, 75Sr, 77Y, 79Zr, 81Nb, 83Mo, 85Tc, 89Rh, 91Pd, 93Ag, 95Cd, 97In, 99Sn(EC), (β+); analyzed and evaluated measured half-lives for decays of all the listed nuclei, and ground-state branching ratios for decays of 1n to 75Sr, T=1/2 mirror β decays; deduced adopted T1/2, ground-state branching ratios for decays of 1n to 83Mo, except 69Br, 73Rb and 81Nb. 1n, 3H(β-); 11C, 13N, 15O, 17F, 19Ne, 21Na, 23Mg, 25Al, 27Si, 29P, 31S, 33Cl, 35Ar, 37K, 39Ca, 41Sc, 43Ti, 45V, 47Cr, 49Mn, 51Fe, 53Co, 55Ni, 57Cu, 59Zn, 61Ga, 67Se, 71Kr, 75Sr(EC), (β+); calculated quantities and relevant corrections leading to the Ft values for mirror β transitions, and compared with available experimental values; comparison of experimental and theoretical values for the Gamow-Teller matrix element (MGT) and the orbital current matrix element (ML) for mirror β transitions from 1n to 45V decays. 6He, 9Li, 12,13B, 14,15C, 16N, 19O, 20F, 23Ne, 24,24mNa, 28Al, 32Si(β-); 9,10C, 12N, 13,14O, 18F, 18Ne, 20,22Na, 22Mg, 24,24mAl, 26Si, 28,30P, 30S, 32Cl, 34Ar, 36K, 38Ca, 42Ti, 53Ni(EC), (β+); analyzed logft values and other data for β transitions for T=1, 3/2 and 2 multiplet states for radiative corrections; comparison of the experimental values for the MGT and ML, and the form factors with the theoretical values calculated using shell model. 1n, 3H, 6He, 8,9Li, 12B, 16N, 20F, 23,24Ne, 24,24mNa(β-); 8Be, 9,10,11C, 12,13N, 15O, 17,18F, 18,19Ne, 20,21Na, 23Mg, 24,24m,25Al, 27Si, 29,30P, 30,31S, 33Cl, 35Ar, 36,37K, 39Ca(EC), (β+); analyzed overview of values of experimental form factors for all ground-state to ground-state and ground-state to first-excited 2+ or 4+ state T=1 and 3/2 transitions with A<39, and comparison with theoretical shell model calculations. 6He, 9Li, 12,13B, 14,15C, 16N, 19O, 20F, 23Ne, 24,24mNa, 28Al, 32Si(β-); 9,10C, 12N, 13,14O, 18Ne, 18F, 20,22Na, 22Mg, 24,24mAl, 26Si, 28,30P, 30S, 32Cl, 34Ar, 36K, 38Ca, 42Ti, 53Ni(β+); analyzed decay schemes for T=1 and T=3/2 mirror β transitions. Update of the Ft values of the isospin T=1/2 mirror β decays determine the Vud quark-mixing matrix element, taking into account recoil terms, weak magnetism, for the mirror β decays and a large set of β decays in higher isospin multiplets. Relevance to reactor neutrino problem and reactor neutrino anomaly. NUCLEAR MOMENTS 1n, 1,3H, 3He, 11,13C, 11B, 13,15N, 15,17O, 17,19F, 19,21Ne, 21,23Na, 23,25Mg, 25,27Al, 27,29Si, 29,31P, 31,33S, 33,35Cl, 35,37Ar, 37,39K, 39,41Ca, 41,43Sc, 43,45Ti, 45,47V, 47,49Cr, 49,51Mn, 51,53Fe, 53,55Co, 55,57Ni, 57,59Cu, 59,61Zn, 61,63Ga, 67As, 67Se, 71Br, 71Kr, 75Rb, 75,77Sr; analyzed and evaluated measured magnetic dipole moments of T=1/2 mirror nuclei; deduced adopted values, and calculated magnetic moments for which no experimental data available; deduced conserved vector current (CVC) form factors, and compared with theoretical shell-model calculations.
doi: 10.1103/PhysRevC.107.015502
2011GO17 Phys.Rev. C 84, 014323 (2011) V.V.Golovko, F.Wauters, S.Cottenier, M.Breitenfeldt, V.De Leebeeck, S.Roccia, G.Soti, M.Tandecki, E.Traykov, S.Van Gorp, D.Zakoucky, N.Severijns Hyperfine field and hyperfine anomalies of copper impurities in iron NUCLEAR MOMENTS 59,67,69,71Cu; analyzed magnetic moments obtained from laser spectroscopy and nuclear magnetic resonance frequencies from β-NMR experiments; deduced hyperfine anomalies, and hyperfine magnetic field of Cu in Fe host.
doi: 10.1103/PhysRevC.84.014323
2010WA40 Phys.Rev. C 82, 055502 (2010) F.Wauters, I.Kraev, D.Zakoucky, M.Beck, M.Breitenfeldt, V.De Leebeeck, V.V.Golovko, V.Yu.Kozlov, T.Phalet, S.Roccia, G.Soti, M.Tandecki, I.S.Towner, E.Traykov, S.Van Gorp, N.Severijns Precision measurements of the 60Co β-asymmetry parameter in search for tensor currents in weak interactions RADIOACTIVITY 60Co(β-); measured E(β), I(β), γ(θ), β asymmetry parameter using a polarized 60Co source with low-temperature nuclear orientation method. 57Co, 54Mn(EC); measured γ(θ) and used as references for temperature measurement. Systematics of β-asymmetry parameters for Gamow-Teller transitions and for T=1/2 mirror nuclei. Tensor currents in weak interactions.
doi: 10.1103/PhysRevC.82.055502
2010WA42 Phys.Rev. C 82, 064317 (2010) F.Wauters, B.Verstichel, M.Breitenfeldt, V.De Leebeeck, V.Yu.Kozlov, I.Kraev, S.Roccia, G.Soti, M.Tandecki, E.Traykov, S.Van Gorp, D.Zakoucky, N.Severijns Half-life of 221Fr in Si and Au at 4 K and at millikelvin temperatures RADIOACTIVITY 221Fr(α)[from U(p, X), E=1.4 GeV]; measured Eα, Iα, Eγ, Iγ parent half-life at 20 mK and 4 K in Si and Au host media. No dependency on the solid-state environment and temperature of this α decaying isotope is observed up to a level of 0.1%.
doi: 10.1103/PhysRevC.82.064317
2009WA22 Phys.Rev. C 80, 062501 (2009) F.Wauters, V.De Leebeeck, I.Kraev, M.Tandecki, E.Traykov, S.Van Gorp, N.Severijns, D.Zakoucky β asymmetry parameter in the decay of 114In RADIOACTIVITY 114In(β-); measured β spectra, β(θ, T, H), and ce; using low-temperature nuclear orientation technique; deduced β-asymmetry parameter. Comparison with GEANT4-based simulation code and predictions of Standard model.
doi: 10.1103/PhysRevC.80.062501
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