Quasilocal Quark Models as Effective Theory of Non-perturbative QCD

Details Quasilocal Quark Models as Effective Theory of Non-perturbative QCD Quasilocal Quark Models as Effective Theory of Non-perturbative QCD

2005-01-02

arxiv.org/abs/hep-ph/0501005v1

Int.J.Mod.Phys. A20 (2005) 1850-1854

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, Talk at the International Symposium "MENU 2004", 29.August-4.September, Beijing,China

Scientific paper

10.1142/S0217751X05023475

We consider the Quasilocal Quark Model of NJL type (QNJLM) as an effective theory of non-perturbative QCD including scalar (S), pseudoscalar (P), vector (V) and axial-vector (A) four-fermion interaction with derivatives. In the presence of a strong attraction in the scalar channel the chiral symmetry is spontaneously broken and as a consequence the composite meson states are generated in all channels. With the help of Operator Product Expansion the appropriate set of Chiral Symmetry Restoration (CSR) Sum Rules in these channels are imposed as matching conditions to QCD at intermediate energies. The mass spectrum and some decay constants for ground and excited meson states are calculated.

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