HOW TO MAKE LARGE DOMAINS OF DISORIENTED CHIRAL CONDENSATE

Rajagopal and Wilczek have proposed that relativistic nuclear. collisi ons can generate domains in which the chiral condensate is disoriented . If sufficiently large (i.e., nucleus sized), such domains can yield measurable fluctuations in the number of neutral and charged pions. Ho wever, by numerical simulation of the zero-temperature two-flavor line ar sigma model, we find that domains are essentially pion sized. Never theless, we show that large domains can occur if the effective mesons masses are much lighter.