Nuclear quadrupole moments of 5/2<Superscript>-</Superscript> and 9/2<Superscript>-</Superscript> states in <Superscript>169</Superscript>Ta期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Nuclear quadrupole moments of 5/2- and 9/2- states in 169Ta

Authors:	Vivek?Kumar,P.?Thakur,A.?K.?Bhati mailto:akbhati@pu.ac.in" title=" akbhati@pu.ac.in" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,R.?P.?Singh,R.?K.?Bhowmik

Affiliation:	(1) Centre for Advanced Studies in Physics, Panjab University, 160 014 Chandigarh, India;(2) Inter-University Accelerator Centre, JNU Campus, 110 067 New Delhi, India

Abstract:	The nuclear spectroscopic quadrupole moments for the πh_9/25/2^-, 1/2^-[541] and the πh_11/29/2^-, 9/2^-[514] isomeric states in ¹⁶⁹Ta have been measured employing the time differential perturbed angular-distribution technique following the nuclear reaction ¹⁵⁹Tb(¹⁶O, 6nγ)¹⁶⁹Ta at beam energy 104 MeV. The ratio of the intrinsic quadrupole moments $Q_{0}(K^{ensuremath{pi}} = 5/2^{-})/Q_{0}(K^{ensuremath{pi}} = 9/2^{-})$ has been derived as 1.87(13) from the measured quadrupole precession frequencies of the corresponding states. The model-independent analysis of the equilibrium deformation indicates strong prolate- and oblate-driving nature of the 1/2^-[541] and 9/2^-[514] orbitals in ^169,171Ta isotopes, respectively.

Keywords:	21.10.Hw Spin, parity, and isobaric spin 21.10.Ky Electromagnetic moment 27.70.+q 150 ⩽ A ⩽ 189
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