Eur. Phys. J. A (2011) 47: 126
https://doi.org/10.1140/epja/i2011-11126-0

Regular Article - Theoretical Physics

Cluster pre-existence probability

Department of Physics, Bharathiar University, 641046, Coimbatore, India

^* e-mail: m.balou@gmail.com

Received: 1 August 2011
Revised: 20 September 2011
Accepted: 11 October 2011
Published online: 24 October 2011

Abstract

Pre-existence probability of the fragments for the complete binary spectrum of different systems such as ⁵⁶Ni, ¹¹⁶Ba, ²²⁶Ra and ²⁵⁶Fm are calculated, from the overlapping part of the interaction potential using the WKB approximation. The role of reduced mass as well as the classical hydrodynamical mass in the WKB method is analysed. Within WKB, even for negative Q -value systems, the pre-existence probability is calculated. The calculations reveal rich structural information. The calculated results are compared with the values of preformed cluster model of Gupta and collaborators. The mass asymmetry motion is shown here for the first time as a part of relative separation motion.