Present: Stepan, Maurik, Takashi, Tim, John, Bryan Mackinnon
Please send corrections/additions to the entire EC mail list.

 

1. Preparing for Scheduling Shifts

John showed slides Planning HPS Shifts.pptx showing who's left HPS. With the exceptions of Karl Slifer and Youri  Sharabian, whose status is uncertain, the membership list is complete.

Bill Cooper remains a collaboration member, but will not be asked to take shifts because he's retired and has no travel funds.

Alexandre Deur will remain a member  but will not be asked to take shifts in 2014. He will be expected to take his share of shifts over the 2014-2015 time period.

We agreed, slightly counter to what's on the slides, that RC's will have 2 week stints, and be credited 2 (5 day) shift periods for their time. Subsystem experts will have 1 week stints, credited as 1 (5 day) shift period.

Stepan will propose how to man the beam commissioning shifts. We'll ask subsystem leaders to schedule subsystem experts for the Nov. 22-Dec. 22 run and make the results known to Bryan, who will account them in figuring out how many shifts to assign to each institution. We decided that JLAB (Stepan) will serve as RC for the beam commissioning period ( Oct 10-Nov 21) and SLAC (John and Takashi) for the HPS commissioning period (Nov 22-Dec 22). Bryan will also take those shifts into account.

Stepan has prepared a list of all HPS members, showing who is expert and who is worker, which he'll distribute to EC and Bryan.

Stepan and Bryan will develop a procedure for assigning expert and worker shifts.

3. RR Review in August--HPS role

Stepan showed us the draft charge for the ARR to be held Aug 26-28 at JLAB. Stepan has been tentatively assigned some number of talks. One talk has been requested from an HPS collaborator, and Maurik may be able to attend to present it. Stepan will consider if other collaborators are needed for presentations--perhaps the locals?--and if additional homework on our part is needed.

4. Keith Griffioen has requested that his graduate student, Sebouh Paul,  be made an HPS collaboration member. Please see his email attached below, and please let me know if you approve his request.

I saw that you listed two shift-takers for W&M-Sebouh and me.  This is great.  Since we are local, we can be counted on to fill in shifts as needed on short notice.  I've been waiting to apply for membership for Sebouh until he's done enough work to know that he'd like to do an HPS thesis. Sebouh is committed to HPS, so perhaps we should talk about possible thesis topics.  Then we can make a formal application for him.

If a muon-lite detector makes sense, the data from such a wide-angle detector would make for a nice thesis.    But it's also possible to use calibration data with C and CH2 targets to measure nuclear radii.  Regardless of the topic, Sebouh, as part of his training,  could be counted on to assist with details of getting the experimental apparatus working on the floor, both of the primary apparatus and also for potential muon counters.  He's been doing simulations of the coverage for (old) wide-angle detectors that would detect particles with hits in the first 2-3 SVT layers.  We get about an octave in mass coverage.  The simulation still needs to be improved by adding absorbers in front of the muon-detection system.  Given summer schedules, it may be a few weeks before we have full enough simulations to make the case for muon-lite.

What do you think?  How should we proceed?

 Thanks,

 Keith

 

 

 

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