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Titolo:
MESONIC CORRELATION-FUNCTIONS IN THE NJL MODEL WITH VECTOR-MESONS
Autore:
DAVIDSON RM; ARRIOLA ER;
Indirizzi:
NATL INST NUCL PHYS & HIGH ENERGY PHYS,NATL INST NUCL & HIGH ENERGY PHYS 1009 DB AMSTERDAM NETHERLANDS UNIV GRANADA,DEPT FIS MODERNA E-18071 GRANADA SPAIN
Titolo Testata:
Physics letters. Section B
fascicolo: 3-4, volume: 359, anno: 1995,
pagine: 273 - 280
SICI:
0370-2693(1995)359:3-4<273:MCITNM>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
JONA-LASINIO MODEL; RANDOM INSTANTON VACUUM; QCD VACUUM; NAMBU; INSTABILITY; HADRONS; FIELD;
Keywords:
EUCLIDEAN CORRELATION FUNCTIONS; NJL MODEL; PAULI-VILLARS REGULARIZATION; DISPERSION RELATIONS; VECTOR AND AXIAL-VECTOR MESONS; CHIRAL SYMMETRY; VECTOR COUPLING CONSTANT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
R.M. Davidson e E.R. Arriola, "MESONIC CORRELATION-FUNCTIONS IN THE NJL MODEL WITH VECTOR-MESONS", Physics letters. Section B, 359(3-4), 1995, pp. 273-280

Abstract

We compute mesonic correlation functions in Euclidean coordinate space within the Nambu and Jona-Lasinio model with explicit scalar, pseudoscalar, vector and axial-vector couplings. After bosonization and application of the Pauli-Villars regularization method, we verify that therelevant dispersion relations are satisfied in the model, and use them to evaluate the point to point correlators in several channels, namely sigma, pi, p and A. The results are not very sensitive to the particular value of the vector coupling constant, G(v). We also discuss andcompare with the corresponding calculations in lattice QCD in the quenched approximation and the random instanton liquid model.

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Documento generato il 22/09/20 alle ore 20:49:22