Present: Stepan, Maurik, Nathan, Raphael, John

Please send comments/corrections to the whole EC.

1. Author lists. John received updated lists of 2016 authors from the institutional representatives. Several noted shortcomings in the 2015 author list as well.

After some consideration, EC decided to add the following to the author list for 2015: Mariangela Bondi, Greg Kalicy, Ani Simonyan, and Bradley Yale.

For the 2016 list, two of the 2015 authors were deleted: Ken Livingston and Ken Moffeit. All the new additions to the 2015 list were included. After some consideration, the EC decided to add Luca Colaneri, a student at Rome for the 2015 list and now finally at Orsay as a postdoc, since he is continuing support of HPS with his calculations of the trident background.

2. Czar for the HPS Detector Paper

Holly was the only volunteer for the position. EC decided that with the support of her advisor, Larry Weinstein, she is an excellent candidate for the job.

3. Run Plan. Stepan presented slides reviewing our run plan issues. We have to consider both a short term (1.5-2 yr) plan to submit to the lab in July, and a longer term plan aimed at utilizing our approved 165 PAC days. Most of the discussion centered on our next major run of 30 PAC days in 2018. Details will need to be worked out, but everyone imagines a significant amount of 4.4 GeV running.  There are plusses and minuses to including running at 2.2 GeV in addition, TBD.  Clearly we'd like to take the bulk of our running post Layer 0 upgrade, and this could be possible in 2018.

It may also be wise to be ready to take advantage of running next summer, 2017. The present schedule calls for 1 GeV/pass running the first three weeks of June. HPS could conceivably get run time if CLAS 12 has satisfied its KPP performance requirements. This could be a time to finish up at 1 GeV. More discussion is needed.

4. Discussion of HPS Priorities. There was general agreement that our highest priority is completing home work for the 2015 results and getting out our first physics results. This is already under the guidance of the analysis group and moving ahead. We did not assign priorities to the other activities, but viewed several as important. The analysis group will soon organize preparations for processing the 2016 data (calibrations, good run lists, alignment, beam positions, etc.) and thereafter develop actual data processing plans. We discussed the need to improve the simulation, adding more detailed ECal geometry, more inclusive dead material in the SVT, vac chamber, and ECal, and devising a scheme to mix actual background data (in place of simulated beam backgrounds) with MC events. The software group will undertake these tasks. Moving ahead with the upgrade expeditiously is clearly important if we are to have it available for the 2018 run. That said, some of the simulation work needed for an upgrade proposal will be deferred until real progress has been made getting the physics out.

  • No labels