Anomalous production of $\Omega$ and is evidence of the formation of disoriented chiral condensates?
نویسندگان
چکیده
منابع مشابه
Disoriented Chiral Condensates and Anomalous Production of Pions
The leading-particle effect and the factorization property of the scattering amplitude in the impact parameter space are used to study semiclassical production of pions in the central region. The mechanism is related to the isospin-uniform solution of the nonlinear σ-model coupled to quark degrees of freedom. The multipion exchange potential between two quarks is derived. It is shown that the s...
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15 صفحه اولBaryon number conservation and the formation of disoriented chiral condensates
Conservation of baryon number as topological charge in effective chiral field theories imposes a local constraint on the time evolution of field configurations in the commonly used O(4) model. Possible consequences for the formation of chiral condensates after a quench from random initial configurations are discussed. It is argued that efficient dissipative terms are necessary but not sufficien...
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...
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The idea that a bubble of misaligned vacuum is sometimes produced in high energy collisions is reviewed. Talk at XXIX Rencontres de Moriond, Méribel, March 1994 E-mail : [email protected] Laboratoire associé au C.N.R.S.
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ژورنال
عنوان ژورنال: Journal of Physics G: Nuclear and Particle Physics
سال: 2002
ISSN: 0954-3899
DOI: 10.1088/0954-3899/28/7/348