[Frost] Followup on today's meeting

[Steffen Strauch]

Dear Colleagues,

In today's meeting Igor Senderovich has presented his nice study of the hydrogen contamination of the 12C target in g9a.  His missing-mass distributions did not agree with the ones I have shown earlier.  Looking through my analysis of the hydrogen contamination I found that I made an additional cut on the data.  I have selected only events where the pion momentum is larger than 0.4 GeV/c.  For this particular study I did not want to worry about additional complications through energy loss corrections, particularly for the contaminated 12C target.  The corrections were made, but only the large momentum particles used.  Relaxing this cut brings the missing-mass distributions into nice agreement.

All the best,
Steffen Strauch