Eur. Phys. J. A (2005) 25: 453-454
https://doi.org/10.1140/epjad/i2005-06-129-6

ENAM 2004

A measure for triaxiality from K (shape) invariants

¹ Wright Nuclear Structure Laboratory, Yale University, 272 Whitney Ave., 06520-8124, New Haven, CT, USA
² Institut für Kernphysik, Universität zu Köln, Zülpicher Str. 77, D-50937, Köln, Germany

^* e-mail: vw@mirage.physics.yale.edu

Received: 29 November 2004
Accepted: 1 March 2005
Published online: 13 July 2005

Abstract

We show that the cubic shape invariant K₃, which provides a measure for triaxiality for β-rigid nuclei, can be obtained from a small number of observables. This affords approximations which have been tested to hold within a few percent in the rigid triaxial rotor model and the interacting boson model.