Minutes of the E00-102 Meeting
Monday, April 26 2004

Fissum

MA/KF/DH/BR/RR/AS/LW

o KF went over the status of the e89003 article
for PRC.  A second-pass version has been placed
at the arxiv in which various typos and mistakes
in the equations have been cleaned up.  A
second-pass version has been submitted to PRC in
which the data tables have been relegated to an
EPAPS submission (both a formatted version for
easy reading and a .txt version for easy downloading
and use).  In accordance with the wishes of the
referee, the theory formalism section has been
moved to an appendix.  The paper is presently
with the referee.  Stay tuned.

o the remainder of the meeting was spent
discussing the plan-of-attack for performing the
data analysis MA needs for his LIC.  A summary
follows.

o the timeline and availabilites:  KF leaves the
project as of 19 May 2004.  MA leaves the project
as of 31 December 2004.  Further, MA is unavailable
in July and RR is unavailable as of July.

o the goal:  relative cross sections for proton
knockout from the 1p12 state of 16O for
pmiss < 350 MeV/c for the restricted acceptance
examined by Nilanga and Juncai in e89003.

  - analysis of only the 1p12 state greatly
    simplifies the amount of work to be done on
    radiative corrections.

 - analysis of 0 < pmiss < 350 MeV/c greatly
    reduces the amount of data that needs to be
    processed while at the same time "reproduces"
    the world data at highest-ever Q2.

  - the restricted acceptance analysis "ensures"
    that everything we learned about the HRS2
    applies.  We hope.

o the milestones:  the LIC analysis should be
finished by mid-October and must be defended
before Xmas.

o the status of the e00102 analysis:

  - first-pass "cook" of the data is finished.
    .hbook files exists for every run.   The
    analysis of these cooked files will suffice
    for the LIC but at least a second-pass cook
    will be required for the production analysis.

  - various well-understood scripts for
    extracting scaler-based information exist.

o the short-term goal is to generate the relative
  cross section for pmiss = 70 MeV/c while both
  KF and MA are onsite and can work closely
  together.  MA will then propagate this analysis
  procedure through the other data after KF has
  left, and continue the analysis remotely from
  Lund.

o yield:

  - MA will dig out the e89003 cuts from KF's
    work on evaluating the systematic uncertainties
    in e89003 and apply these cuts to the first-pass
    .hbooks that RR has generated.

  - BR has performed a detailed analysis of the
    tracking efficiency for his analysis.  We have
    judged a tracking efficiency analysis to be
    beyond the scope of the LIC and will refer to
    BR's work and the corrections he suggests for
    the 16O yield.

  - computer deadtime and electronics deadtime
    corrections result essentially from running
    well-defined scripts which pull the information
    from the scaler files.

  - relative focal-plane efficiencies are unity
    given the restrictive phase-space cuts -- this
    is also known from e89003.

o luminosity:

  - RR is looking at the target thickness by
    examining the spectra from BeO and 16O.  There
    are some peculiarities that need investigation.
    The number of electrons comes from a script
    which examines scaler events.

  - hydrogen will serve as a cross check.  Let
    this sit as "pending" for now.

o phase space and radiative corrections:

  - KF and MA will work together on setting up a
    MCEEP suite for this kinematic point.  Turning
    on/off radiative corrections within MCEEP will
    suffice for the LIC.  We may resort to the
    phase space program used in e89003.