2011
DOI: 10.1103/physrevd.83.076005
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Isospin breaking and chiral symmetry restoration

Abstract: We analyze quark condensates and chiral (scalar) susceptibilities including isospin-breaking effects at finite temperature T. These include m u Þ m d contributions as well as electromagnetic (e Þ 0) corrections, both treated in a consistent chiral Lagrangian framework to leading order in SUð2Þ and SUð3Þ chiral perturbation theory, so that our predictions are model-independent. The chiral restoration temperature extracted from h " qqi ¼ h " uu þ " ddi is almost unaffected, while the isospin-breaking order param… Show more

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Cited by 15 publications
(22 citation statements)
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References 36 publications
(117 reference statements)
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“…Consequently, its connected part χ con S would also peak at Oð4Þ × Uð1Þ A restoration. Actually, in the physical massive case, χ con S ¼ χ δ S =2 grows with T below the transition [5,37,40] and, because χ π P decreases like hqqi l [31], their degeneracy would give rise to a maximum for χ δ S near U A ð1Þ restoration. A hint of that behavior for χ con S is seen at around T ∼ 190 MeV in the lattice [4].…”
Section: B I = 0 1 Sectors: Connection With Lattice Resultsmentioning
confidence: 99%
“…Consequently, its connected part χ con S would also peak at Oð4Þ × Uð1Þ A restoration. Actually, in the physical massive case, χ con S ¼ χ δ S =2 grows with T below the transition [5,37,40] and, because χ π P decreases like hqqi l [31], their degeneracy would give rise to a maximum for χ δ S near U A ð1Þ restoration. A hint of that behavior for χ con S is seen at around T ∼ 190 MeV in the lattice [4].…”
Section: B I = 0 1 Sectors: Connection With Lattice Resultsmentioning
confidence: 99%
“…being p the external pion three-momentum, Z = C/F 4 and Σ γEx ( p) the self energy contribution from the one-photon exchange on the mass shell [18,16]. The differences between considering the static limit ( p = 0) and values of the three-momentum compatible with the temperature range considered are tiny [16], so that we will restrict ourselves to this limit to define the pion masses.…”
Section: Pos(confinement X)190mentioning
confidence: 99%
“…The differences between considering the static limit ( p = 0) and values of the three-momentum compatible with the temperature range considered are tiny [16], so that we will restrict ourselves to this limit to define the pion masses.…”
Section: Pos(confinement X)190mentioning
confidence: 99%
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