Calculation of strange resonances from K pi scattering

Rodas, A.; Peláez, J.R.; Ruiz de Elvira, J. (20 March 2018). Calculation of strange resonances from K pi scattering. PoS - proceedings of science. Trieste, Italy: Scuola Internazionale Superiore di Studi Avanzati SISSA 10.22323/1.310.0043

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We present a determination of the mass, width and coupling of the strange resonances appear- ing in pion-kaon scattering below 1.8 GeV, namely the much debated K0∗(800) or κ, the scalar K0∗(1430), the K∗(892) and K∗(1410) vectors, the spin-two K2∗(1430) as well as the spin-three K3∗(1780). The parameters of each resonance are determined using a direct analytic continua- tion of the pion-kaon partial waves by means of Padé approximants, thus avoiding any particular model description of their pole positions and residues, while taking into account the analytic requirements imposed by dispersion relations.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Ruiz de Elvira Carrascal, Jacobo

Subjects:

500 Science > 530 Physics

ISSN:

1824-8039

Publisher:

Scuola Internazionale Superiore di Studi Avanzati SISSA

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

30 Aug 2018 16:04

Last Modified:

28 Oct 2019 08:32

Publisher DOI:

10.22323/1.310.0043

ArXiv ID:

1711.09688

BORIS DOI:

10.7892/boris.119661

URI:

https://boris.unibe.ch/id/eprint/119661

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