Net baryon number probability distribution near the chiral phase transition
نویسندگان
چکیده
منابع مشابه
Chiral phase transition and baryon number conservation
In the standard R4 embedding of the chiral O(4) model in 3+1 dimensions the winding number is not conserved near the chiral phase transition and thus no longer can be identified with baryon number. In order to reestablish conserved baryon number in effective low-energy models near and above the critical temperature Tc it is argued that insisting in O(N) models on the angular nature of the chira...
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b We discuss the baryon-number susceptibility χ B and related topics which include the density fluctuations around the critical point of the chiral transition at finite temperature T and baryon density ρ B. Phenomenological implications of the density fluctuations near the first-order chiral transition at finite density are also discussed.
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An enhancement of dielectron mass spectra below ρ/ω resonance observed at CERN SPS3) can be explained by the dropping mass of ρ meson4) following the Brown-Rho scaling.5) There is a scenario which certainly requires the dropping mass of the vector meson and supprots the Brown-Rho scaling, named the vector manifestation (VM)6) where the massless vector meson becomes the chiral partner of pion at...
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It is shown that in the large Nc limit the light baryon spectrum exhibits the chiral restoration phase transition at high enough excitation energy. Such a phase transition is evidenced by the systematical parity doublets observed in the upper part of N and ∆ spectra. At low temperature and density the almost perfect SU(2)L × SU(2)R global chiral symmetry of the QCD Lagrangian in the u, d sector...
متن کاملSI-TH-97-6, hep-ph/9712431 Chiral phase transition and baryon number conservation
In the standard R4 embedding of the chiral O(4) model in 3+1 dimensions the winding number is not conserved near the chiral phase transition and thus no longer can be identified with baryon number. In order to reestablish conserved baryon number in effective low-energy models near and above the critical temperature Tc it is argued that insisting in O(N) models on the angular nature of the chira...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2014
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-013-2706-1