[Clas_cascades] Comments to normalization note and response

[Elton Smith]

HI Lewis,

I have read over the analysis note and your response. Here are a few
comments:

Analysis Note:
==============

p. 14, Fig 9 Caption, suggestion:
"Vertex time DIFFERENCE in ns between the following particle pairs:
p+pi+...."

p. 26, table, bottom
I assume you should replace the "~" on the eg3 bottom row for a "-"?

p. 26, last full sentence, suggestion if I understand it:
"....G11 independent of EG3, and the 2ns tagger and vertex cuts that were
only applied to the G11 data."

p. 27, confusion between Fig. 14 and 19, as well as explanatory text. You
need to clarify the following sentence: Once this correction was applied
it was solely responsible for the cross sections becoming higher for each
data set and this is shown in Figure 14 and Figure 19.".

>From Figures 14 and 19, I see changes in the cross section from about 20%
at low energies to almost a factor of 2 at higher energies. From Table 2,
the multiple photon correction is about 10%, so the text and Figures to
not match up. Generraly, what is the difference between Figs 14 and 19?

p. 29, middle second paragraph:
"...study. WE previously assumed..."

p. 34, Table, eliminate decimals, which falsely implies accuracy. Remove
all decimals, e.g. 29.9% -> 30%, 31.62% -> 32%...

p. 38. Once all numbers are final, you may wish to work on a crisp
conclusion. Examples:

I'm not sure what the last part of this sentence means: "The current
analysis provides complementary infomration into the trigger efficiency of
the EG3 trigger and is comparable to existing CLAS data." (Do you mean
that EG3 and G11 measure the same cross section?)

Last sentence in first paragraph:
"..., but it IS ALSO dependent..."

Next to last sentence: "...and 20% to 30% agreement ofr the inclusive
Lambda skim..." This numbers need to be consistent with final numbers in
Table 3.

Response to Comments
====================
(6) See suggestion to caption in previous section. For this response, I
suggest the following: Figure 9 is a plot of the time differences between
the three different pairs of particles in the final state. The red line
indicates the 2ns cut that was done at the skim level. Figure 7 is the
maximum time difference of the three combinations.
(9) Add the following to the end of the response:"The trigger bit 5 rate
is also consistent with the extrapolation of bit 6 to zero current".
(10) Bottom lines and text on the following page: Why the colors -
suggest revert to black.
- On the next to bottom line: "...and implemented into this REVISED
analysis."
- On p. 3. For the EG3 analysis... you need to add the size of the
correction (10%?) to the response for completeness.
- The Figure 1: I do not see a reference to it. It should be connected to
explanatory text to give it context.


Thanks, Elton.


Elton Smith
Jefferson Lab MS 12H5
12000 Jefferson Ave
Suite # 16
Newport News, VA 23606
elton at jlab.org
(757) 269-7625
(757) 269-6331 fax