| Issue |
EPJ Web of Conf.
Volume 290, 2023
European Nuclear Physics Conference (EuNPC 2022)
|
|
|---|---|---|
| Article Number | 06002 | |
| Number of page(s) | 4 | |
| Section | P6 Hadron Structure, Spectroscopy and Dynamics | |
| DOI | https://doi.org/10.1051/epjconf/202329006002 | |
| Published online | 08 December 2023 | |
https://doi.org/10.1051/epjconf/202329006002
J/ψ Near-Threshold Photoproduction off the Proton and Neutron with CLAS12
1 SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
* e-mail: r.tyson.1@research.gla.ac.uk
Published online: 8 December 2023
Near-threshold J/ψ photoproduction is a key aspect of the physics program at the Thomas Jefferson National Accelerator Facility (JLab) 12 GeV upgrade due to the wealth of information it has to offer. J/ψ photoproduction proceeds through the exchange of gluons in the t-channel and is expected to provide unique insight about the nucleon gravitational form factors and the nucleon mass radius. The JLab based CLAS Collaboration, which uses the CEBAF Large Acceptance Spectrometer (CLAS12), aims to measure the J/ψ near threshold photoproduction cross section using both a proton and a deuteron target, from threshold up to 10.6 GeV. The deuteron target further offers the possibility of comparing the proton and neutron gluonic form factors and mass radii in a first measurement of the cross sections off a proton or neutron within the deuteron target. The analysis towards these measurements is ongoing and well advanced, with machine learning based techniques for particle identification already designed and validated with CLAS12 data.
© The Authors, published by EDP Sciences, 2023
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