EPJ Web Conf.
Volume 212, 2019The 12th International Workshop on e+e- Collisions from Phi to Psi (PhiPsi 2019)
|Number of page(s)||6|
|Section||Mesons of Light Quarks|
|Published online||17 June 2019|
Dispersive analysis of the κ/K0*(700) meson and other light strange resonances
Departamento de Física Teórica and IPARCOS. Universidad Complutense, 28040, Madrid, Spain
2 Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
Published online: 17 June 2019
We briefly review our recent works where we use dispersion relations to constrain fits to data on πK → πK and 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 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.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.