Composite two-Higgs models and chiral symmetry restoration
نویسندگان
چکیده
منابع مشابه
Deconfinement and Chiral Symmetry Restoration
We discuss the critical behaviour of strongly interacting matter close to the QCD phase transition. Emphasis is put on a presentation of results from lattice calculations that illustrate deconfining as well as chiral symmetry restoring features of the phase transition. We show that both transitions coincide in QCD while they fall apart in an SU(3) gauge theory coupled to adjoint fermions. We al...
متن کاملDeconfinement and Chiral Symmetry Restoration
We illustrate why color deconfines when chiral symmetry is restored in gauge theories with quarks in the fundamental representation, and while these transitions do not need to coincide when quarks are in the adjoint representation, entanglement between them is still present. Introduction. One of the long-standing puzzles in theoretical physics is the relation between confinement and chiral symm...
متن کاملChiral Symmetry Restoration in Hadron
The evidence and the theoretical justification of chiral symmetry restoration in high-lying hadrons is presented. I. CHIRAL SYMMETRY RESTORATION OF THE SECOND KIND It has recently been suggested that the parity doublet structure seen in the spectrum of highly excited baryons may be due to effective chiral symmetry restoration for these states [1]. This phenomenon can be understood in very gener...
متن کاملChiral and U(1) axial symmetry restoration in linear sigma models with two quark flavors
We study the restoration of chiral symmetry in linear sigma models with two quark flavors. The models taken into consideration have a U(2) × U(2) and an O(N) internal symmetry. The physical mesons of these models are σ, pion, η and a0 where the latter two are not present in the O(N) model. Including two-loop contributions through sunset graphs we calculate the temperature behavior of the order ...
متن کاملDeconfinement through Chiral Symmetry Restoration in Two-Flavour QCD
We propose that in QCD with dynamical quarks, colour deconfinement occurs when an external field induced by the chiral condensate strongly aligns the Polyakov loop. This effect sets in at the chiral symmetry restoration temperature Tχ and thus makes deconfinement and chiral symmetry restoration coincide. The predicted singular behaviour of Polyakov loop susceptibilities at Tχ is shown to be sup...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 1999
ISSN: 1029-8479
DOI: 10.1088/1126-6708/1999/06/003