[G12] Minutes from today's meeting (11/11)

[Craig Bookwalter]

Hello folks,
  Minutes from today's g12 meeting can be found at the following link, and
pasted below:

http://clasweb.jlab.org/rungroups/g12/wiki/index.php/11Nov09#Minutes

Agenda

    * Pass 1 status
          o FSU
          o JLab
    * 64/32 bit benchmarking results
    * Yield estimates for charged 3pi
    * Media:mmkk_tofecut_7percent.png
    * Media:mmkk_7percent.png
    * Media:p_beta_tofecut10.5.png

[edit]
Minutes

    * Attending: Ben, Johann, Mukesh, Carlos, Dennis, Mike, Diane, Craig
    * Current pass1 completion date: 1/2/2010 -- Ben wants to push this
back into 2009.
    * FSU has mostly given up on cooking after the HVAC failure -- there
is a motion to transfer the files already cooked at FSU to the JLab
silo to save a few days of cooking.
    * Johann shows a couple plots of the missing mass off K+K+. Dennis
doesn't like the background levels. We would like to see p v beta for
K+, with all cuts and
          o a cut around the cascade
          o a cut below the cascade, to see the background
          o as well as similar plots for events with a particle of an
additional flavor included (a pion or proton)
    * Craig will compare cut by cut with Mina's result to try and debug
why we're only getting a factor of 2 over g6c. Something has to be
wrong with the angles.
    * Diane is having trouble with MC. The lab phi from the missing eta
and the eta reconstructed by two-gamma in the EC do not agree. Dennis
has metaphysical certainty that this is a problem with genr8.
    * Mukesh is just getting started skimming and getting his analysis
code working. Dennis would like to see some physics, specifically the
missing mass off the K+K-.
    * Mike has been keeping g7 folks up to date on his analysis but not
us. Mike's rho-omega interference plot shows a wide and lower-mass
rho, but Dennis suggests that there is a missing factor in Mike's fit
function. Mike will include this factor and do another fit for next
week.
    * The 32/64 bit benchmark shows a less than 1% difference in runtimes
between 32 bit on 64 bit processor vs native 64 bit.
    * No meeting next week due to the collaboration meeting.