Quantum Phenomenology for the Disoriented Chiral
نویسندگان
چکیده
We consider the quantum state describing the Disoriented Chiral Condensate (DCC), which may be produced in high energy collisions. We show how a mean eld treatment of the quantum equations corresponding to the classical linear sigma model leads to a squeezed state description of the pions emerging from the DCC. We examine various squeezed and coherent state descriptions of those pions with particular attention to charge and number uctuations. We also study the phenomenology of multiple DCC domains.
منابع مشابه
Quantum phenomenology for the disoriented chiral condensate.
We consider the quantum state describing the Disoriented Chiral Condensate (DCC), which may be produced in high energy collisions. We show how a mean field treatment of the quantum equations corresponding to the classical linear sigma model leads to a squeezed state description of the pions emerging from the DCC. We examine various squeezed and coherent state descriptions of those pions with pa...
متن کاملDisoriented Chiral Condensate: Theory and Phenomenology
The basic ideas underlying the production dynamics and search techniques for disoriented chiral condensate are described. Presented at the XXXVII Cracow School of Theoretical Physics \Dynamics of Strong Interactions" Zakopane, Poland 30 May{10 June 1997 Work supported by the Department of Energy, contract DE{AC03{76SF00515. (1) DISORIENTED CHIRAL CONDENSATE: THEORY AND PHENOMENOLOGY
متن کاملDissipation, noise and DCC domain formation
The possibility of forming disoriented chiral condensate (DCC) in relativistic heavy ion collisions has generated considerable research activities in recent years. The idea was first proposed by Rajagopal and Wilczek [1–4]. They argued that for a second order chiral phase transition, the chiral condensate can become temporarily disoriented in the nonequilibrium conditions encountered in heavy i...
متن کاملObserving Disoriented Chiral Condensates
We speculate that, in very high energy hadronic collisions, large fireballs may be produced with interiors which have anomalous chiral order parameters. Such a process would result in radiation of pions with distinctive momentum and isospin distributions, and may provide an explanation of Centauro and related phenomena in cosmic-ray events. The phenomenology of such events is reviewed, with emp...
متن کاملDisoriented Chiral Condensates in Hadron-Hadron Collisions
We review recent progress in the description and understanding of disoriented chiral condensates. Certain important unsolved issues are underlined, and the preliminary results of our program of investigation of these issues in the framework of the classical linear sigma model are reported. We also briefly review a formalism which could be useful at the full non-equilibrium quantum field theory ...
متن کامل