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more on time-of-flight systematics

Hi,

I've attached a plot of the resolution in the difference between the true
flight time to either the BCAL or the TOF and the reconstructed time using
the path length for 1.0 GeV/c pions and protons.  For particles in the
barrel I find that there is no difference between pions and protons at
this momentum, but the resolution is a factor of 2 worse for protons in
the forward region.

Simon

timing_res_1gev_pions_protons.gif