NUCLEI AS SUPERPOSITION OF TOPOLOGICAL SOLITONS

Author:

ACUS A.12,NORVAIŠAS E.12,RISKA D. O3

Affiliation:

1. VU Institute of Theoretical Physics and Astronomy, Vilnius 01108, Lithuania

2. Department of Physics and Technology, Vilnius Pedagogical University, Lithuania

3. Helsinki Institute of Physics POB 64, 00014 University of Helsinki, Finland

Abstract

The rational map approximation provides an opportunity to describe light nuclei as classical solitons with baryon number B > 1 in the framework of the Skyrme model. The rational map ansatz yields a possibility of factorization of S3 baryon charge into S1 and S2 parts, the phenomenology of the model being strongly affected by the chosen factorization. Moreover, in the fundamental representation superposition of two different soliton factorizations can be used as solution ansatz. The canonical quantization procedure applied to collective degrees of freedom of the classical soliton leads to anomalous breaking of the chiral symmetry and exponential falloff of the energy density of the soliton at large distance, without explicit symmetry breaking terms included. The evolution of the shape of electric form factor as a function of two different factorization soliton mix ratio is investigated. Numerical results are presented.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

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