Dispersive analysis of the κ/K0*(700) meson and other light strange resonances

Peláez, José R.; Rodas, Arkaitz; Ruiz de Elvira Carrascal, Jacobo; Achasov, M.N.; Ignatov, F.V.; Krokovny, P.P. (17 June 2019). Dispersive analysis of the κ/K0*(700) meson and other light strange resonances. EPJ Web of Conferences, 212(03003), 03003. 10.1051/epjconf/201921203003

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We briefly review our recent works where we use dispersion rela- tions to constrain fits to data on πK → πK and ππ → KK providing a simple but consistent description of these processes. Then, simple analytic methods allow to extract parameters of poles associated to light strange resonances without assuming a particular model. We also present preliminary results on a model-independent determination of the controversial κ or K0∗(700) resonance parameters, by using those constrained parameterizations as input for partial- wave hyperbolic dispersion relations that allow to perform a rigorous analytic continuation to determine its associated pole.

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:

2100-014X

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

31 Jul 2019 16:21

Last Modified:

04 Aug 2019 02:41

Publisher DOI:

10.1051/epjconf/201921203003

BORIS DOI:

10.7892/boris.132106

URI:

https://boris.unibe.ch/id/eprint/132106

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