Influence of Traxiality on the Signature Inversion in Odd--Odd Nuclei

Chin. Phys. Lett.

2004, Vol. 21

Issue (8): 1475-1478 DOI:

Original Articles

Influence of Traxiality on the Signature Inversion in Odd--Odd Nuclei

ZHENG Ren-Rong¹;ZHU Shun-Quan^1,2;LUO Xiang-Dong¹;Janos Timar³;Andree Gizon⁴;Jean Gizon⁴;D.Sohler³,B.M.Nyako³;L.Zolnai³;E.S.Paul⁵

¹Department of Physics, Shanghai Normal University,Shanghai 200234 ²Shanghai Commercial Polytechnic, Shanghai 201400 ³Institute of Nuclear Research, H-4001 Debrecen, PO Box 51, Hungary ⁴Laboratoire de Physique Subatomique et de Cosmologie, IN2P3-CNRS/UJF, F-38026 Grenoble-Cedex, France ⁵Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, United Kingdom

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ZHENG Ren-Rong, ZHU Shun-Quan, LUO Xiang-Dong et al 2004 Chin. Phys. Lett. 21 1475-1478

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Abstract The nature of signature inversion in the πg9/2^vh11/2 bands of odd--odd^98,102Rh nuclei is studied. Calculations are performed by using a triaxial rotor plus two-quasiparticle model and are compared with the experimentally observed signature inversions. The calculations reproduce well the observations and suggest that, in these bands, the signature inversion can be interpreted mainly as a competition between the Coriolis and the proton--neutron residual interactions in low K space. The triaxiality applied in the Hamiltonian enlarges the amplitudes of high spin signature zigzags at small triaxial deformation and might push the signature inversion point to higher spin at large triaxial deformation.

Keywords: 21.60.Ev 21.10.Re 23.20.Lv 27.60.+j

Published: 01 August 2004

PACS:	21.60.Ev	(Collective models)
	21.10.Re	(Collective levels)
	23.20.Lv	(γ-transitions and level energies)
	27.60.+j	(90 ≤ A ≤ 149)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I8/01475

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	ZHENG Ren-Rong
	ZHU Shun-Quan
	LUO Xiang-Dong
	Janos Timar
	Andree Gizon
	Jean Gizon
	D.Sohler
	B.M.Nyako
	L.Zolnai
	E.S.Paul

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