[BLAST_ANAWARE] vertex for "good" d(e,e'p)n events

From: vitaliy ziskin (vziskin@mit.edu)
Date: Tue May 04 2004 - 12:28:52 EDT

I include the vertex reconstructed for 60 cm cell (red) and 40 cm cell
(black) normalized to charge. I seems that we are only gaining 25% not
a factor of 2. What has changed? Are the cerenkov efficiecies still
the same? Should we adjust the nozzle to maximize the gas flow into the
cell? Is the reconstruction efficiency the same?

                                                                Cheers,
Vitaliy


vertex_40cm_60cm.gif

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