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Re: Dirc+TOF [message #7179 is a reply to message #7178] Wed, 06 August 2008 13:16 Go to previous messageGo to previous message
asanchez is currently offline  asanchez
Messages: 350
Registered: March 2006
first-grade participant
From: *gsi.de
Hi Stephano, i see you are using the Phi value you get by extrapolating to the tof radius for calculating the path length
in the XY plane. Be careful because in this way you are assuming that all particles are primaries, (coming from the vertex).

Is it not better to take the difference between the phi value in tof and the first hit of the track?

If you do that you will consider also the particles
which are secondaries(decay products).

best regards
Alicia.
 
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