Weekly Minutes 2007-09-21

From PrimExWiki

Present: Aron, Pawel, Eugene, Mark, Liping, Dustin, Xin Qiao Li, Liyang Jiang, Ashot.
On phone: Dan Sober, Tulio

1. Eugene asked to be released from the chair of the analysis committee because of upcoming experiments in Hall B. Decided to discuss in the coming "Seniors" meeting.

2. Was expressed a common request to ask Eric to present his recent results.

3. Pawel presented his new results for the Compton cross section:

a) suggested to show all errors on the experimental points;
b) more work needs to be done on resolution and fitting;
c) the validity of NIST results was discussed, we need to use them as a reference but we need to make our own simulations;
d) Aron suggested to look at Be/C ratio;

4) what and how to improve for a new Compton run:

a) for better error on Ng take more "clock" triggers;
b) make veto counters effective;
c) run with thinest Be target (Eugene)
d) solve the permanent magnet problem (Liping)

6) How to average the pion results?

a) Ashot suggested to look on his suggestions done two week ago on this question;
b) Eugene suggested that math. averaging will not work in this case. We may average only results for different targets.
c) more discussion is needed.

7) Tulio updated his recent results for NI double differential cross sections.

8) next secretary is Liyang.

Minutes recorded by Ashot.