Evidence for a scalar kappa(900) resonance in pi-K scattering

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dc.creatorBlack, D.
dc.creatorFariborz, A. H.
dc.creatorSannino, F.
dc.creatorSchechter, J.
dc.date1998-04-10
dc.date.accessioned2026-07-07T10:33:40Z
dc.date.available2026-07-07T10:33:40Z
dc.descriptionMotivated by the $1/N_c$ expansion, we study a simple model in which the pi-K scattering amplitude is the sum of a current-algebra contact term and resonance pole exchanges. This phenomenological model is crossing symmetric and, when a putative light strange scalar meson, kappa, is included, satisfies the unitarity bounds to well above 1 GeV. The model also features chiral dynamics, vector meson dominance and appropriate interference between the established scalar K*(1430) resonance and its predicted background. We briefly discuss the physical significance of the results and directions for further work.
dc.description28 pages, 17 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/9804273
dc.identifierhttp://arxiv.org/abs/hep-ph/9804273
dc.identifierPhys.Rev.D58:054012,1998
dc.identifierdoi:10.1103/PhysRevD.58.054012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179194
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleEvidence for a scalar kappa(900) resonance in pi-K scattering
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