Eur. Phys. J. Plus (2016) 131: 240
https://doi.org/10.1140/epjp/i2016-16240-2

Regular Article

RETRACTED ARTICLE: Six-body bound system calculations in the case of effective -core structure

Physics Department, Shahrood University of Technology, P.O. Box 3619995161-316, Shahrood, Iran

^* e-mail: E.Ahmady.ph@ut.ac.ir

Received: 8 February 2016
Accepted: 17 June 2016
Published online: 25 July 2016

Abstract

The Yakubovsky formalism for the six-nucleon bound-state problem leads to five coupled equations in terms of five independent structures, which can be reduced to two coupled ones, for the case of effective 3-body model, namely -core, and two loosely bound neutrons. In order to calculate the binding energy of the six-nucleon bound system, the reduced coupled Yakubovsky equations are represented in momentum space for a separable nucleon-nucleon interaction. This is the first step toward the calculations of the six-nucleon bound-state problem in the Yakubovsky approach. Comparison of our numerical results for binding energies of six-nucleon and four-nucleon problems with respect to the regarded Yamaguchi separable potential confirms that the six-nucleon bound system, in the case of effective -core structure, is a halo structure.