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Low energy Yang-Mills effective theories and solitons

Grant number: 09/05356-2
Support type:Research Grants - Visiting Researcher Grant - International
Duration: August 18, 2009 - September 28, 2009
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal Investigator:Luiz Agostinho Ferreira
Grantee:Luiz Agostinho Ferreira
Visiting researcher: Kouichi Toda
Visiting researcher institution: Toyama Prefectural University, Japan
Home Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

The objective of the visit is to develop research on soliton solutions, vortices and Hopfions, for the extended Skyrme-Faddeev model. The importance of such work is twofold: first we are interested in developing techniques for the study of non-perturbative aspects of field theories describing the fundamental interactions of Nature. Second that model is a candidate to describe the low energy limit of the SU(2) Yang-Mills theory without matter fields, and their soliton solutions play a crucial role in the structure of the theory in that regime. (AU)