E895 Meeting Minutes                 18 March, 1997

Attending:  Gulshan Rai, Nathan Stone, Dieter Best, Heng Liu, Jerry Chance,
	    Mark Gilkes, Hans Georg Ritter, Doug Olson

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News & Status Report:

HGR -   Purdue's paper is available for comments, deadline is Apr. 1.

JC  -   Juan Romero asked about the Hall probe readings for 2 & 4 GeV run,
	the data is in the camac table, but we need to understand the
	calibration factor in order to interpret them.

NS  -   drift velocity vs. run number (from Jim) has been packed into a
	KUIP vector.
    -   The hit removal efficiency is about 40% for 2 & 4 GeV. 6 & 8 GeV
	jobs are still running. The hitfinder switches I used are
	trff=1 and decon=1.

HL  -   did comparison between old EOS code and E895 TAS2 code. Both codes
	did well for old EOS data, the point removal efficiency is about
	70%. For E895 data (about 20k hits for 8GeV central events), the
	performance of TAS2 code deteriorated, the point removal efficiency
	dropped to 30% while the old EOS code still gives about 57%.

GR  -   I fixed the global t0 problem. I could align the beam with the
	normal event for 2 and 4 GeV. The new survey position of the beam
	appears to be in the wrong place. The t0 number is reflected in
	the kumac files in CVS. Essentially we finished all the calibrations
	for 6 and 8 GeV.

MG  -   A prototype pass1 code has been built on UNIX using Tasgen.  With
	the new system structure, there are some problems (like padrow
	from hitfinder is always zero), this problem may have nothing to
	do with Tasgen since this problem has been seen in some other
	context. Tasgen works fine in Stony Brook. To get to the bottom of
	this problem, we can try to build a toy version of TAS to see if
	it's working.

DB  -   showed particle spectra from DST for 6 and 8 GeV data.
    -   The EOS tape stackers are mounted on PDSF.

HL  -   showed some results from RQMD events. Rapidity distribution and Mt
	spectra for protons and pions and particle production predicted by
	RQMD for all energies, and some flow results. The flow seems to be
	too small (I believe this is because the default mode for RQMD is
	cascade), I have to figure out how to turn on the mean field.



                                        Prepared by Heng Liu