E+ @ JLab Sub-Group

In the line of PAC46 recommendations, we wish to propose to PAC48 indisputable high-impact physics case experiments supporting the development of polarized positron beams at CEBAF. With the expectation of significant experimental signals and a strong physics output, deeply virtual Compton scattering off the proton (p-DVCS) is the golden physics case for positron beams. Based on the PAC46 Letter-of-Intent, we consequently intend to submit two proposals: high precision mesurements of selected unpolarized cross sections with the NPS (Neutral Photon Spectrometer) in Hall C, and a wide kinematical survey of moderate precisions measurements of cross sections and beam spin asymmetries with CLAS12.

Meetings

• CLAS12 - 5/27/2020 Minutes Silvia's slides
• CLAS12 - 5/20/2020 Minutes
• CLAS12 - 5/13/2020 Minutes
• CLAS12 - 5/06/2020 Minutes
• CLAS12 - 4/15/2020 Minutes
• CLAS12 - 4/07/2020 Minutes
• CLAS12 - 3/10/2020 Minutes
• CLAS12 - 2/20/2020 Minutes

e+@NPS proposal

• Final version of the proposal - Proposal

e+@CLAS12 proposal

• Time-table

 Abstracts for all new proposals due to CLAS chair: May 11, 2020.
 Full proposal due to CLAS reviewers: May 25, 2020.
 First response by review committee: June 1, 2020.
 Revised proposal due to reviewers: June 8, 2020.
 Final committee recommendation: June 15, 2020.
 Proposal submission due to PAC48: June 22, 2020.
 PAC48 Meeting: August 10-14, 2020.

• Abstract for the CLAS Review Committee - Abstract
• Proposal overleaf link - Proposal
• Final version of the proposal - Proposal