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HK: Fachverband Hadronen und Kerne

HK 67: Poster Session

HK 67.45: Poster

Thursday, March 19, 2009, 14:00–16:00, Audi-Max

Nuclear moments and hyperfine structure parameters for heavy isotopes within QED and relativistic mean field theory — •Olga Khetselius — Odessa University, P.O.Box 24a, Odessa-9, Ukraine, 65009

Consistent calculation of the nuclear electric quadrupole moments Q and hyperfine structure parameters for heavy elements is carried out within the gauge-invariant QED [1]perturbation theory and relativistic mean field approach [2]. The results of calculating the nuclear moments and hfs constants are presented for 201Hg, 207Pb, 223Ra. For element 201Hg we have received Q= 380,5 mbarn. It is agreed the best of all with experimental value, received by group Ulm etal (general interval of the experimental values is 300-600 mb). For element of 223Ra our value is Q=1,22 barn. It is in the limits of last experimental measurements values by Wendt group (ISOLDE Collaboration). The role of the nuclear effects contribution (core-polarization ones, which are induced by valent protons of a nucleus), temporal distribution of magnetization in a nucleus (effect of Bohr-Weisskopf) and non-accounted high order QED corrections is analyzed.

References [1] A. Glushkov, O.Khetselius, et al, Nucl.Phys.A. 734S, 21 (2004); J.Phys.CS. 35 430 (2006); Recent Adv. In Theory of Phys. and Chem Systems (Springer). 15, 285 (2006); Europ.Phys.Journ.ST. 160,195 (2008); Proc.MENU-08, SLAC (2008). [2] T.Nagasawa, A.Haga, M.Nakano, Phys.Rev.C.69,0934322 (2004).