General Meeting Summary 5/17/18

DISCUSSION TCS PAC46 DRAFT

• Overall looks good, physics motivation good, but work remains to be done to include, e.g.:

• Executive summary (1-4 pages) with plot(s) that show the power of the measurement - Fig. 12 and Fig. 38 seem best
• Strengthen motivation for universality and quantify
• check and fix inconsistencies of Fig. 34ff, e.g. t<0.2 not possible, correct calculation of luminosity, NPS description update
• update projections with experimental acceptance, CPS, target, etc.
• Discussion about measurement of observables with sufficient precision to show consistent framework exists vs. measuring directly universality

• Technical questions

• Design of proton recoil detector
• Final trigger rates - high rates may be addressed with adjusting segmentation

• Discussion about including neutron data

• targets in principle feasible
• dealing with exclusivity more difficult

• Discussion and recommendations for proceeding with full proposal vs. LOI at PAC46

• Physics case nice, good precision experiment, however, much work still to be done in limited time
• An LOI could be very strong, requires updates, but not as much as full proposal would
• Likely outcomes for full proposal limited to: conditional approval pending CPS review, deferral

NPS SUBSYSTEMS

• HV bases (update from Julie)

• first HV boards with connectors (instead of cables off the board) were received: Pic1, PIC2
• Chris Stanislav tested four of them and found them to be passing specs
• Remaining 1170 ones will be ordered shortly

• Magnet assembly schedule - to be discussed in next meeting

• Update on crystals in next meeting

• Update on 10x10 prototype (ComCal) design/assembly postponed to next meeting

NEXT MEETING: THURSDAY 31 MAY AT 9:00 AM (EDT)