Eur. Phys. J. A (2016) 52: 31
https://doi.org/10.1140/epja/i2016-16031-4

Regular Article - Theoretical Physics

Level structures in odd-odd deformed nucleus ¹⁸⁴Ta

Department of Physics, Sri Sathya Sai Institute of Higher Learning, 515134, Prasanthinilayam, (AP), India

^* e-mail: sood.prakash@gmail.com

Received: 5 November 2015
Accepted: 13 January 2016
Published online: 19 February 2016

Abstract

A detailed low-energy level scheme of the odd-odd n-rich nucleus ¹⁸⁴ ₇₃Ta₁₁₁ is constructed using the well tested Two-Quasiparticle Rotor Model (TQRM) for calculating the bandhead energies of physically admissible 2qp configurations with the inclusion of residual n-p interaction contribution. The presently available data on this level scheme from ¹⁸⁴Hf decay are shown to be in agreement with these calculations. Our analysis concludes that ¹⁸⁴Hf ( keV) decay admits of 7 additional (to the 3 presently reported) -branches to ¹⁸⁴Ta with or 1 and 8 more physically admissible weak ( -branches populating levels in ¹⁸⁴Ta. Further, a close examination of our level scheme clearly indicates the existence of a low-lying ( keV) high-spin () long-lived isomer in this nucleus.