Publications
Publication Information
| Title | Determination of the lightest strange resonance $K_0^*(700)$ or $\kappa$, from a dispersive data analysis |
| Authors | J. Pelaez, A. Rodas |
| JLAB number | JLAB-THY-20-3166 |
| LANL number | arXiv:2001.08153 |
| Other number | DOE/OR/23177-4948 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review Letters Volume 124 Page(s) 172001 Refereed | |
| Publication Abstract: | In this work we present a precise and model-independent dispersive determination from data of the existence and parameters of the lightest strange resonance \kap. We use both subtracted and unsubtracted partial-wave hyperbolic and fixed-$t$ dispersion relations as constraints on combined fits to $\pi K\rightarrow\pi K$ and $\pi\pi\rightarrow K\bar K$ data. We then use the hyperbolic equations for the analytic continuation of the isospin $I=1/2$ scalar partial wave to the complex plane, in order to determine the $\kappa/K_0^*(700)$ and $K^*(892)$ associated pole parameters and residues. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevLett.124.172001 |
| Accepted Manuscript: | PhysRevLett.124.172001.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |