Eur. Phys. J. A (2005) 25: 455-456
https://doi.org/10.1140/epjad/i2005-06-092-2

ENAM 2004

Alternative interpretation of E0 strengths in transitional regions

¹ Institut für Kernphysik, Universität zu Köln, Zülpicher Str. 77, D-50937, Köln, Germany
² Wright Nuclear Structure Laboratory, Yale University, 272 Whitney Ave., CT 06520-8124, New Haven, USA
³ Physik Department E12, Technische Universität München, James-Franck-Str., 85748, Garching, Germany

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

Received: 5 October 2004
Accepted: 18 February 2005
Published online: 13 May 2005

Abstract

A strong rise of E0 transition strengths between the first excited 0⁺ state and the ground state is predicted in shape transitional regions within the Interacting Boson Model (IBM). This rise matches well existing data and is not connected to a large mixing amplitude between both states. Moreover, a coherence of amplitudes in the wave functions causes the strong transition, without a requirement of explicit mixing of normal and intruder configurations.