OPE of Green Functions of Chiral Currents
نویسندگان
چکیده
منابع مشابه
Chiral symmetry breaking via multifermion Green functions.
Previous results on fermion chirality-flipping four-point functions are extended to SU(N) gauge theories. The problem is purely non-perturbative, and it is approached by truncating the Schwinger-Dyson hierarchy. The large-N limit also simplifies the problem substantially. The resulting equation is solved numerically by relaxation techniques and an estimate of the critical coupling and momentum ...
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OPE–RχT matching at order αs: hard gluonic corrections to three–point Green functions
In this work we push the matching between the QCD operator product expansion (OPE) and resonance chiral theory (RχT) to order αs. To this end we compute two– and three–point QCD Green functions (GFs) in both theories and compare the results. GFs which are order parameters of chiral symmetry breaking make this matching more transparent and thus we concentrate on those. On the OPE side one needs ...
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ژورنال
عنوان ژورنال: Nuclear and Particle Physics Proceedings
سال: 2020
ISSN: 2405-6014
DOI: 10.1016/j.nuclphysbps.2019.11.020