[Clas_cascades] Minutes 9/9/2010

[Elton Smith]

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

== Announcements==
# Hovanes will run the next meeting, 8:00 am Sep 9

== Draft of Phi-- Paper (Hovanes) ==
# Started including sections of the analysis note and submitted to cvs,
but not yet ready for other input
# There will be quite a long sections included, but they can then be cut
back
# Asked whether there should be discussions of two sets of cuts (liberal
and conservative): Elton: Focus on the set of cuts used for the upper
limit. It makes the paper simpler and easier to read.
# Stepan: Compare results to normal cascade cross sections

== Theta+ (Zhiwen) ==
# Started looking at g n -> K-K0p(p), with Theta+ -> K0p.
# Advantages of eg3 are better acceptance for K- in forward direction, and
larger overlap with LEPS kinematics compared to other CLAS analyses
# Invariant mass plots of (K0p) shown. No indication of a peak in the
region close to 1530-1540.
# Stepan: list of cuts to consider are a) Missing mass peak b) photon
energy cuts c) t-cuts.
# Elton: Suggests to only use missing mass cut for primary mass spectrum,
and use t-ranges as a selection only to compare to LEPS data.
# Elton: Try to get an estimate of an upper limit to see if it is
competitive with LEPS published results.

== Next Meeting Sep 9, 8:00 am ==
# Phi-- Draft of paper (Hovanes)
# Theta+ update (Zhiwen)
# Analysis note for Lambda(1520)?


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