Probing Scalar Mesons Below and Above 1 GeV
Amir H. Fariborz
TL;DR
This paper uses a generalized linear sigma model with multiple nonets to analyze scalar and pseudoscalar mesons below and above 1 GeV, exploring their quark structures and predicting pi pi scattering amplitudes.
Contribution
It introduces a comprehensive model including two-quark and four-quark nonets for scalar and pseudoscalar mesons, providing new insights into their quark content and scattering behaviors.
Findings
Estimated quark components of mesons
Predicted pi pi scattering amplitude
Unified description of mesons below and above 1 GeV
Abstract
Within the context of a generalized linear sigma model that includes two nonets of scalar mesons (a two-quark nonet and a four-quark nonet) and two nonets of pseudoscalar mesons (a two-quark nonet and a four-quark nonet) a collective description of scalar and pseudoscalar mesons below and above 1 GeV is studied. The quark contents of these states are probed; estimates on their quark components are extracted; and prediction for pi pi scattering amplitude is made. An overview of these studies is presented here.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Physics of Superconductivity and Magnetism