Minutes of the E00-102 Meeting
Monday, May 3 2004

Fissum

MA/KF/BR/RR/AS/LW

o old news:  no comments so far from the referee
regarding the e89003 legacy article

o MA has spent the last week familiarizing himself
with paw and paw++.  Some data from kina+- (just off
qvec) and king+- (pmiss = 350 MeV/c) have been analyzed.
The cuts presently being used are:  T5 (coincidences),
e89003 legacy (theta, phi, and delta), and central
target foil (both spectrometers recreate the same
central-foil vertex).  We clicked through several
of these spectra and discussed what we saw.  Other
than some hydrogen leaking into kina+, there was
nothing really unexpected.

o Nilanga has provided the legacy phase-space code
and MA and KF have gone through it in some detail.
We will use this code rather than MCEEP to generate
the phase-space volumes for the LIC analysis.  Lots
of Euler rotations and coordinate transformations
for those of you who enjoy such things.  Otherwise
rather straightforward.  MA will place high priority
on getting the program to link and compile before
KF leaves.

o Nilanga has also provided a tutorial in the legacy
cross-section code which takes the .ntuple generated
by the phase-space code and the .ntuple generated by
ESPACE and essentially divides these .ntuples subject
to user-defined cuts and binning e t c.  KF will make
the code available to all once Nilanga provides it
(Nilanga wanted some time to clean it up a bit first).

o MA will now also examine coincidence time spectra
such as t_c versus t_cor, and then install cuts on this
time-of-flight variable and extract some foreground and
background Emiss spectra, and then try to subtract
them in a controlled fashion.

o RR showed the results of the BeO/H2O target-thickness
analysis.  There were some puzzling effects which
resulted from collimators, pump speed, and rastering.
We believe the ensuing discussion ironed out these
problems.

o LW and RR will have a summer student from ODU look
in detail at the H(e,e) and H(e,ep) cross sections.
In addition to providing the absolute normalization
for the experiment, this will hopefully result in a
good algorithm for testing the tracking efficiency
for the 16O data.

o longer term, the goal is for MA et al. to extract
at least kina+- relative cross sections before he
leaves in mid-May.

o next meetings:  Thursday 6 May at ODU at 13.00;
Monday 10 May at ODU at 14.00, and Thursday 13 May at
13.00 at JLab.  All welcome.