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On possible $Θ$ vacua states in heavy ion collisions

A. K. Chaudhuri
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Abstract

We have simulated the possible $Θ$ vacua states in heavy ion collisions. In a quench like scenario, random phases of the chiral fields were evolved in a zero temperature potential incorporating the breaking of $U_A(1)$ symmetry. Initial random phases very quickly settles into oscillation around the values dictated by the potential. The simulation indicate that $Θ$ vacua states that can be populated in heavy ion collisions is a coherent superposition of a number of modes.

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A. K. Chaudhuri. 2000-12-06. On possible $Θ$ vacua states in heavy ion collisions. https://doi.org/10.1103/physrevc.64.054902

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