Fermionic green function and functional determinant in QCD2

Autor:	K.D. Rothe, N.K. Nielsen, Bert Schroer
Rok vydání:	1979
Předmět:	Physics Quantum chromodynamics Nuclear and High Energy Physics symbols.namesake Quantum mechanics Euclidean geometry symbols Feynman diagram Perturbation (astronomy) Functional determinant Fermion Resummation Mathematical physics
Zdroj:	Nuclear Physics B. 160:330-348
ISSN:	0550-3213
DOI:	10.1016/0550-3213(79)90063-4
Popis:	We obtain a closed representation for the QCD 2 fermion determinant, euclidean Green functions and induced current in generic external fields. In the absence of zero modes the results are representable as sums over tree diagrams which as we show, can also be obtained from the original Feynman perturbation series via resummation and integration over loop variables. We also investigate the modifications due to the presence of zero modes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e27001e9d918b4f4303a5a3aaa0f5966 https://doi.org/10.1016/0550-3213(79)90063-4 Zobrazit plný text záznamu