Phase transition in linear sigma model and disoriented chiral condensate
A. K. Chaudhuri
Abstract
We have investigated the phase transition and disoriented chiral condensate domain formation in linear sigma model. Solving the equation of motion for the sigma model fields in contact with a heat bath, we have shown that the fields undergo phase transition above a certain critical temperature(Tc). It was also shown that when the fields thermalised at temperature above Tc are cooled down sufficiently rapidly, disoriented chiral condensate domains are formed quite late in the evolution.
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