Quark Schwinger-Dyson evaluation of the l(1),l(2) coefficients in the chiral Lagrangian

Llanes Estrada, Felipe José; Bicudo, PD

Quark Schwinger-Dyson evaluation of the l(1),l(2) coefficients in the chiral Lagrangian

dc.contributor.author	Llanes Estrada, Felipe José
dc.contributor.author	Bicudo, PD
dc.date.accessioned	2023-06-20T18:52:07Z
dc.date.available	2023-06-20T18:52:07Z
dc.date.issued	2003
dc.description	© 2003 The American Physical Society. The authors acknowledge useful discussions with S. Cotanch, F. Kleefeld, B. Hiller, P. Maris, J. R. Pelaez, A. Dobado, A. Gomez Nicola, and specially E. Ribeiro. This work was partially supported by Univ. Complutense on a travel grant, and by grants FPA 2000-0956 and BFM 2002-01003 (Spain), F.J.L.-E. is thankful for the hospitality and scholarly atmosphere at IST Lisbon.
dc.description.abstract	Using a systematic expansion of the quark-antiquark Bethe Salpeter wave functions in the relativistic quark model and working to O(P-4) in the chiral limit, we are able to derive theoretical expressions relating the coefficients of the chiral Lagrangian l(1),l(2) to the underlying quark-antiquark wave functions and interaction kernels. This is accomplished by using a novel technique based on a Ward identity for the quark-antiquark ladder kernel which greatly simplifies the required effort. Numerical evaluations are performed in two simple specific models.
dc.description.department	Depto. de Física Teórica
dc.description.faculty	Fac. de Ciencias Físicas
dc.description.refereed	TRUE
dc.description.sponsorship	Univ. Complutense
dc.description.status	pub
dc.eprint.id	https://eprints.ucm.es/id/eprint/23372
dc.identifier.doi	10.1103/PhysRevD.68.094014
dc.identifier.issn	0556-2821
dc.identifier.officialurl	http://dx.doi.org/10.1103/PhysRevD.68.094014
dc.identifier.relatedurl	http://prd.aps.org
dc.identifier.uri	https://hdl.handle.net/20.500.14352/58813
dc.issue.number	9
dc.journal.title	Physical Review D
dc.language.iso	eng
dc.publisher	American Physical Soc
dc.relation.projectID	FPA 2000-0956
dc.relation.projectID	BFM 2002-01003
dc.rights.accessRights	open access
dc.subject.cdu	53
dc.subject.keyword	P-3(0) Condensed Vacuum
dc.subject.keyword	Perturbation-Theory
dc.subject.keyword	Symmetry
dc.subject.keyword	Model
dc.subject.keyword	Qcd
dc.subject.keyword	Mesons
dc.subject.keyword	Scattering
dc.subject.keyword	Resonances
dc.subject.keyword	Expansion
dc.subject.keyword	Breaking
dc.subject.ucm	Física (Física)
dc.subject.unesco	22 Física
dc.title	Quark Schwinger-Dyson evaluation of the l(1),l(2) coefficients in the chiral Lagrangian
dc.type	journal article
dc.volume.number	68
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relation.isAuthorOfPublication.latestForDiscovery	6290fe55-04e6-4532-91e6-1df735bdbdca

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