Soliton solutions of the sigma-model and disoriented chiral condensates

Citation
Pk. Panigrahi et Cn. Kumar, Soliton solutions of the sigma-model and disoriented chiral condensates, CRM S MA PH, 2000, pp. 163-166
Citations number
13
Categorie Soggetti
Current Book Contents
Year of publication
2000
Pages
163 - 166
Database
ISI
SICI code
Abstract
We derive traveling soliton solutions of the sigma model, relevant for the description of dynamics of pions, in the high-energy, heavy-ion collisions. These extended objects are analogs of Neel and Bloch-type defects in ferro magnetic systems and could possibly describe the disoriented chiral condens ates. It is shown that these solutions are metastable and can naturally pro duce an asymmetry between pi(0) and pi(+), pi(-) mesons in the soft-pion em issions from heavy-ion collisons.