Induced theta-vacuum states in heavy ion collisions: a possible signature

Abstract

It has been suggested recently that an arbitrary induced theta-vacuum state could be created in heavy ion collisions. If such a state can be created, it would decay by various mechanisms to the fundamental theta=0 state which is the true ground state of our world. In the following we will discuss the possibility of studying this unusual state through the emission of pions, eta-mesons, and eta'-mesons. We will also present the spectrum of the produced particles in this non-zero theta background. We use the instantaneous perturbation theory for our estimates.

16 pages, 6 figures, Latex, reference added, corrections made

References in corpus (4)

• Pionic Measures of Parity and CP Violation in High Energy Nuclear Collisions
• Last Call for RHIC Predictions
• Can Induced Theta Vacua be Created in Heavy Ion Collisions?
• Resonant decay of parity odd bubbles in hot hadronic matter

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• Observing Spontaneous Strong Parity Violation in Heavy-Ion Collisions
• P odd fluctuations and Long Range Order in Heavy Ion Collisions. Deformed QCD as a Toy Model
• Mesoscopic QCD and the Theta Vacua
• Domain Wall Bubbles in High Energy Heavy Ion Collisions
• ${\eta }^{\prime }$ Production in Nucleus-Nucleus collisions as a probe of chiral dynamics
• Analysis Tools for Discovering Strong Parity Violation at Hadron Colliders