The dilated chiral quark model
نویسندگان
چکیده
منابع مشابه
The Dilated Chiral Quark Model
It is argued that constituent quarks live in an effective theory that possesses an approximate conformal invariance. An effective lagrangian is constructed which in the large-Nc approximation incorporates Regge asymptotic constraints. The resulting picture explains why linear-sigma models provide successful constituent quark descriptions, both at zero and finite temperature. Our analysis sugges...
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We calculate perturbatively the effect of density on hadronic properties using the chiral quark model implemented by the QCD trace anomaly. We calculate the density dependent masses of the constituent quark (mQ), the scalar field (mχ) and the pion (mπ) in oneloop order using the technique of thermo field dynamics. In the chiral limit, the pion remains massless at finite density. It is found tha...
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We calculate the finite-temperature corrections in the dilated chiral quark model using the effective potential formalism. Assuming that the dilaton limit is applicable at some short length scale, we interpret the results to represent the behavior of hadrons in dense and hot matter. We obtain the scaling law, fπ(T ) fπ = mQ(T ) mQ ≃ mσ(T ) mσ while we argue, using PCAC, that pion mass does not ...
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Abstract. In this talk I review studies of hadron properties in bosonized chiral quark models for the quark flavor dynamics. Mesons are constructed from Bethe–Salpeter equations and baryons emerge as chiral solitons. Such models require regularization and I show that the two–fold Pauli–Villars regularization scheme not only fully regularizes the effective action but also leads the scaling laws ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1994
ISSN: 0370-2693
DOI: 10.1016/0370-2693(94)90441-3