Form Factor Fit for e^+e^- to pi^+pi^-pi^+pi^-
Y. Weng, H. Hu
TL;DR
This paper measures the e^+e^- to pi^+pi^-pi^+pi^- cross section and fits it using an extended VMD model to extract parameters and the isovector form factor.
Contribution
It introduces a fit of experimental cross section data with an extended VMD model to determine relevant parameters and form factors.
Findings
Successful fit of experimental data with the extended VMD model
Extraction of isovector form factor parameters
Validation of the theoretical model against measurements
Abstract
The cross section of e^+e^- to pi^+pi^-pi^+pi^- has been measured by BABAR collaboration. We apply the theoretical cross section deduced from the extended VMD (VectorMeson Dominance) model to fit these experimental data. The relevant parameters and the isovector form factor are obtained
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Advanced Algebra and Geometry · Quantum Chromodynamics and Particle Interactions