[clas_members] [LOI to PAC 52] Measurement of the coherent J/psi Electroproduction off He-4 with the ALERT at 11 GeV

[Sangbaek Lee]

Dear colleagues,

I am pleased to circulate this PAC 52 Letter of Intent (LOI) "Measurement of the coherent J/psi Electroproduction off He-4 with the ALERT at 11 GeV" after review.

The letter can be found at the following link: https://www.jlab.org/Hall-B/shifts/admin/paper_reviews/2024/Coherent_jpsi_electroproduction_pac52_without_beamtime_estimate.pdf-4616787-2024-04-29-v4.pdf <https://urldefense.us/v3/__https://www.jlab.org/Hall-B/shifts/admin/paper_reviews/2024/Coherent_jpsi_electroproduction_pac52_without_beamtime_estimate.pdf-4616787-2024-04-29-v4.pdf__;!!G_uCfscf7eWS!cq0F4mbvGzEv5YLig16xzqXKop_s0fJ5-KculAIZcMWNsT7QfxChwVujJqSqchTvZDBqi_-9y4pp5GNbfcmfxx52NZMK7g$> 
We aim to measure the location of a diffraction minimum in the differential cross section to compare the gluonic gravitational form factor and charge form factor. The secondary goal is to extract the gluonic gravitational form factors of He-4.

Please let us know if you would like to opt-in, by contacting me at sangbaek.lee at anl.gov <mailto:sangbaek.lee at anl.gov> and Whitney Armstrong at warmstrong at anl.gov <mailto:warmstrong at anl.gov>.
Also, if you have any comments or questions, please send them to me and to Whitney Armstrong.
The letter will be submitted to the PAC 52 by 9 a.m. JLab time on Wednesday, 5/1/2024.

Sincerely,
Sangbaek and Whitney
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