Eur. Phys. J. A (2005) 25: 459-462
https://doi.org/10.1140/epjad/i2005-06-204-0

ENAM 2004

Soft chiral vibrations in ¹⁰⁶Mo

¹ Physics Department, Vanderbilt University, TN 37235, Nashville, USA
² Department of Physics, Tsinghua University, 100084, Beijing, PRC
³ Joint Institute for Heavy Ion Research, TN 37835, Oak Ridge, USA
⁴ Lawrence Berkeley National Laboratory, CA 94720, Berkeley, USA
⁵ Department of Physics, University of Notre Dame, IN 46556, Notre Dame, USA
⁶ IKH, FZ-Rossendorf, Postfach 510119, D-01314, Dresden, Germany
⁷ Department of Physics, Mississippi State University, MS 39762, USA
⁸ Idaho National Laboratory, ID 83415, Idaho Falls, USA
⁹ Lawrence Livermore National Laboratory, CA 94550, Livermore, USA
¹⁰ Flerov Laboratory for Nuclear Reactions, Joint Institute for Nuclear Research, 141980, Dubna, Russia

Received: 12 September 2004
Accepted: 23 April 2005
Published online: 15 August 2005

Abstract

High-spin states in neutron-rich ¹⁰⁶Mo were investigated by detecting the prompt γ-rays in the spontaneous fission of ²⁵²Cf with Gammasphere. Several new bands are observed. Two sets of ΔI = 1 bands in ¹⁰⁶Mo are found to have all the characteristics of a new class of chiral vibrational doublets. Tilted axis cranking calculations support the chiral assignment and indicate that the chirality is generated by neutron h _11/2 particle and mixed d _5/2, g _7/2 hole coupled to the short and long axis, repectively.