Matching Chiral Perturbation Theory and the Dispersive Representation of the Scalar Kpi Form Factor

Simple item page
dc.creatorBernard, Veronique
dc.creatorPassemar, Emilie
dc.date2007-11-21
dc.date2008-03-13
dc.date.accessioned2026-07-07T11:54:21Z
dc.date.available2026-07-07T11:54:21Z
dc.descriptionWe perform a matching of the two loop-chiral perturbation theory representation of the scalar Kpi form factor to a dispersive one. Knowing the value of F_K/F_pi and f_+(0) in the Standard Model (SM) allows to determine two O(p^6) LECs, the slope of the scalar form factor and the deviation of the Callan-Treiman theorem. Going beyond the SM and assuming the knowledge of the slope of the scalar form factor from experiment, the matching allows us to determine the ratio of F_K/F_pi, f_+(0), a certain combination of non-standard couplings, the deviation of the Callan-Treiman theorem and the two O(p^6) LECs.
dc.description13 pages, 1 figure, typos corrected, discussion slightly extended, accepted for publication in Phys. Lett. B
dc.identifierhttps://arxiv.org/abs/0711.3450
dc.identifierhttp://arxiv.org/abs/0711.3450
dc.identifierPhys.Lett.B661:95-102,2008
dc.identifierdoi:10.1016/j.physletb.2008.02.004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204865
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Lattice
dc.subjectNuclear Experiment
dc.subjectNuclear Theory
dc.titleMatching Chiral Perturbation Theory and the Dispersive Representation of the Scalar Kpi Form Factor
dc.typetext

Files

Collections

arXiv