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Publication Information
Title Dispersive $\pi K$ and $\pi \pi \to K \bar{K}$ amplitudes from scattering data, threshold parameters and the lightest strange resonance $\kappa$ or $K^*_0(700)$.
Abstract We discuss the simultaneous dispersive analyses of $\pi K$ and $\pi \pi \to K br K$ scattering data and the $\kappa/K^*_0(700)$ resonance. The unprecedented statistics of present and future Hadron Experiments, modern Lattice QCD calculations, and the wealth of new states and decays, require such precise and model-independent analyses to describe final state interactions. We review the existing and often conflicting data and explain in detail the derivation of the relevant dispersion relations, maximizing their applicability range. Next, we review and extend the caveats on some data, showing their inconsistency with dispersion relations. Our main result is the derivation and compilation of precise amplitude parameterizations constrained by several $\pi K$ and $\pi \pi K bar K$ dispersion relations. These constrained parameterizations are easily implementable and provide the rigor and accuracy needed for modern experimental and phenomenological Hadron Physics. As applications, after revi
Author(s) Arkaitz Rodas, José Ramón Peláez
Publication Date July 2022
Document Type Journal Article
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Theory & Comp Physics / THEORY CENTER / THEORY CENTER
Funding Source Nuclear Physics (NP), PID2019-106080GB-C21, No 824093 (STRONG2020), DE-SC0018416
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-THY-20-3276 OSTI Number: 1874808
LANL Number: arXiv:2010.11222 Other Number: DOE/OR/23177-5068
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Journal Article
Journal Name Phys. Rept.
Refereed Yes
Volume 969
Issue
Page(s) 1-126
Attachments/Datasets/DOI Link
Document(s)
PhysRep_piK-72.pdf (STI Document)
1-s2.0-S0370157322001053-main.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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