Log entry time 19:35:51 on March 05, 2012

Entry number 363840

Followups:

• 365485 03/10/12 20:23 mhuang a closer look at CH2 runs

Jixie and I looked at the dp spectrum of CH2 central hole rays (to get
rid of the momentum uncertainty from angles). 

For reference, first plot is C foil target in LHe #2725, we can see C12
and LHe (probably combined with C12 first excited state) elastic peaks.
The next one is CH2 target also in LHe, but with 1x1mm beam size #2753.
Both at p0=2.251GeV. 

Comparing to the first one, we think the highest peak is from LHe, and
the most right-side small peak is C, and H peak smeared by quasi events
are quite broad there.

Figure 1

Figure 2