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Hi,<br>
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Here is a draft of the APS abstract, please take a look. I'll link it to the wiki page shortly.</div>
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Thanks,<br>
Sasha</div>
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JLab Eta Factory experiment in Hall D
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<div>The new experiment, JLab Eta Factory (JEF), in the experimental Hall-D at Jefferson Lab
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<div>will extend the physics potential of the GlueX beyond the main spectroscopy program
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<div>and study rare decays of eta mesons. Among various physics topics, the </div>
<div>experiment will focus on decays of eta mesons to the $\eta\to\pi^0\gamma\gamma$ final
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<div>state. This decay mode provides an important information for higher-order calculations
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<div>in chiral perturbation theory. The final state is ideal for the search of the leptophobic
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<div>dark $B$ boson in the reactions $\eta\to\B\gamma$, $B\to\pi^0\gamma$ and </div>
<div>the scaler dark matter mediator $S$ in the channel $\eta\to\pi^0S$, $S\to\gamma\gamma$.
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<div>The experiment requires to upgrade the inner part of the forward lead glass calorimeter of the GlueX detector with high-granularity, high-resolution lead tungstate $\rm PbWO_{\rm 4}$ scintillating crystals. The detector will be ready to take data in 2023.
I will give an overview of the JEF project.</div>
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