Publications
Publication Information
| Title | Eta Decay Program at GlueX |
| Authors | Alexander Somov |
| JLAB number | JLAB-PHY-19-3116 |
| LANL number | (None) |
| Other number | DOE/OR/23177-4860 |
| Document Type(s) | (Book) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Book Proceedings of HADRON2019 conference | |
| Publication Abstract: | The GlueX detector in the experimental Hall D at Jefferson Lab provides a unique capability to perform a precision measurement of the $\eta \to \gamma \gamma$ decay width via the Primakoff effect and study rare decays of $\eta$ mesons. Measurement of the $\eta$ decay width is essential for the determination of fundamental properties, such as the ratios of the light quark masses and the $\eta$-$\eta^\prime$ mixing angle, and will provide an important test of chiral symmetry breaking in QCD. Physics of rare $\eta$ decays ranges from critical tests of the chiral perturbation theory to the search for lepto-phobic dark matter candidates. We will give an overview of the ongoing PrimEx $\eta$ experiment and physics program of rare $\eta$ decays. |
| Experiment Numbers: | E12-10-011, E12-06-102, E12-13-003 |
| Group: | Hall D |
| Document: | |
| DOI: | |
| Accepted Manuscript: | |
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