Eur. Phys. J. A (2009) 39: 263-266
https://doi.org/10.1140/epja/i2008-10730-3

Letter

A 3-quasiparticle isomer in neutron-rich ¹⁸³Ta

¹ Kansai Photon Science Institute, Japan Atomic Energy Agency, 619-0215, Kyoto, Japan
² Advanced Science Research Center, Japan Atomic Energy Agency, 319-1195, Tokai, Ibaraki, Japan
³ Department of Research Reactor and Tandem Accelerator, Japan Atomic Energy Agency, 319-1195, Tokai, Ibaraki, Japan

^* e-mail: shizuma.toshiyuki@jaea.go.jp

Received: 24 August 2008
Revised: 18 November 2008
Accepted: 23 January 2009
Published online: 10 February 2009

Abstract

Excited states in neutron-rich ¹⁸³Ta have been studied using a two-neutron transfer reaction of ¹⁸¹Ta(¹⁸O,¹⁶O) . In-beam -rays were measured in coincidence with scattered ions detected by a high-resolution E -E Si telescope for reaction channel selection. Previously known 1-quasiparticle bands are extended to higher spins, and several levels including a T _1/2 = 0.9(3) μs 3-quasiparticle isomer are identified.