Vitaly:
Why is that the vertex reconstructed for 60 cm (red) goes to 0 near
+/-20 cm? instead of +/-30 cm, and is very much similar to the 40 cm
target? I thought this morning in the counting bay I saw the on line Z-
distribution vanishing at +/-30.
Manouchehr
vitaliy ziskin wrote:
>
> 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
>
> ------------------------------------------------------------------------
> [Image]
--____________________________________________________________________ Manouchehr Farkhondeh manouch@mit.edu Principal Research Scientist Division Head of Physics, Accelerator MIT, Bates Linear Accelerator Center tel (617)253-9298 Middleton, MA 01949 fax (617) 253-9599 ____________________________________________________________________
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