[Jef] [EXTERNAL] abstract for HADRON2023

[Susan Schadmand]

Dear JEF-ers,

I discussed with Lipong at the APS meeting and now plan to present JEF / 
light meson decays at HADRON2023. Below is my abstract which I may 
submit post deadline.
Best,
Su.
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Precision tests of fundamental physics with light meson decays

Decays of the neutral and long-lived η and η′ mesons provide a unique, 
flavor-conserving laboratory to test low-energy Quantum Chromodynamics 
and search for new physics beyond the Standard Model. The program will 
be realized with the Jefferson Lab Eta Factory (JEF), scheduled to run 
in 2024 in Hall D at Jefferson Lab.  The experiment will use the 
upgraded GlueX experiment to study the different decay modes of the η 
and η' mesons.
The determination of electromagnetic transition form factors of light 
mesons contributes to the interpretation of the measurement of the 
anomalous magnetic moment of the muon. Here, an analysis of data from 
CLAS experiments in Hall B at Jefferson Lab is beginning and will 
provide information on time-like transition form factors for η, ω, and 
η' mesons. In addition, an approved proposal for Hall B aims to 
determine the space-like transition form factor for the neutral pion.
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