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HK: Fachverband Hadronen und Kerne
HK 67: Poster Session
HK 67.46: Poster
Thursday, March 19, 2009, 14:00–16:00, Audi-Max
Relativistic calculation of the beta decay probabilities in the optimized Dirac-Kohn-Sham atom model and a chemical environment effect — •Alexander Glushkov1,2, Olga Khetselius1, Yuliya Dubrovskaya1, and Ludmila Lovett3 — 1Odessa University, P.O.Box 24a, Odessa-9, 65009, ukraine — 2Russian Academy of Sciences, Troitsk, Moscow reg., 142090, Russia — 3UK National Academy of Sciences and Bookdata Co., London SW1Y 5AG, UK
New theoretical scheme for calculating the beta decay characteristics and an account for chemical environment effect on the beta decay ones is developed. As method of calculation of the relativistic fields and electron wave functions, the gauge invariant Dirac-Fock and Dirac-Kohn-Sham approaches are used [1,2]. The results of calculating the decay probabilities for the beta decays: 33P-33S, 35S-35Cl, 63Ni-63Cu, 241Pu-241Am are presented. Comparison of the Fermi function values is carried out for different approximations of an exchange effect account, calculation with using wave functions on the boundary of the charged spherical nucleus and with using squires of the amplitudes of expansion of these functions near zero. References. A.V.Glushkov etal, In: New Projects and New lines of research in Nuclear Physics, eds.Fazio G., Hanappe F. (World Sci.. Singapore,2003); Nucl.Phys.A. 734S,21 (2004). 2. A.V.Glushkov et al, Int. Journ. Quant.Chem. 99, 936 (2004); 104, 512 (2005); J.Phys.CS.35,425 (2005); Recent Adv. in Theory of Phys.and Chem.Syst.(Springer) 15, 285 (2006); In: Low Energy Antiproton Phys.(AIP)796, 206,211(2005).