[Clas_cascades] Notes phone conference April 21

[Elton Smith]

Present: Elton, Hovanes, Stepan, Kijun
On the phone: Lewis, Ralf, Zhiwen, Haiyun <br>
Notes by Elton.

== Announcements==
# We discussed a new day/time for the phone conference. It was decided to
move to Thursday at 9:00 AM.

== Comments on Phi-- Note ==
# Hovanes has updated the response draft made by Elton and checked into
cvs.
# Elton will continue edits to response
# Hovanes started editing the analysis note, nor realizing that Elton had
already made corrections. Will need to merge updates. Should have updated
draft this weekend.
# Main issues that need work are #9 and #13.

== Comments on Normalization Note ==
# Lewis has no new plots. Last week reported 70% completion on reanalysis,
which resulted in 40-50% larger cross section. Thjis has been traced to
several changes that should be taken back out. Should now be able to
reproduce original analysis data, and produced updated plots with multiple
photons. Expect new plots this week.
# Kijun will have new multihit corrections (run-by-run) for the g11 data
set, which can be used for the new cross section comparison.

== Data vs simulation ==
# [[Eg3 simulation]]: Zhiwen presented comparison of data and Monte Carlo
of interaction vertex time.
# Zhiwen has checked in all scripts into cvs for future reference.
# Stepan: Suggested to plot times eliminating the vertexz corrections from
the formula.
# Elton: In general it is best to let the K0 decay in GSIM so that
vertices are correctly generated in space.

== Next Meeting April 29, 10:00 am ==
# Phi-- response to committee
#* Updated response to comments (Elton and Hovanes).
#* Updated analysis note (Hovanes).
#* Review issues that need further work
# Normalization note
#* eg3 cross sections using multiple photons (Lewis)
#* g11 cross section using multiple photons (Kijun)
# K0Lambda(1520)
#* Updated comparison of data and MC vertex times (Zhiwen)


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