Re: BrModuleMatchTrack update

From: videbaek (videbaek@sgs1.hirg.bnl.gov)
Date: Sat Jun 17 2000 - 21:05:27 EDT

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    This deserves  a comment.
The units that is used in BRAT are the following, namely
GeV/c , nsec and cm. 
What Djamel has run into I believe is that the BrUnits still assumes 
Mev as the base unit. I would like to change this.It has not been done because some code assumes MeV from Gerant. This will imply that the de/dx from Geant Hits will be in GeV and not Mev as e.g. the Tof digitization code assumes. By using the BrUnits::MeV and BrUnit::Gev as done e g. in BrmoduleMatch correctlyup til now now it will be trivial to change the units correctly by one modification in BrUnits.

ragards
         Flemming
------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory
tlf: 631-344-4106
fax: 631-344-1334 
videbaek@bnl.gov
 


  ----- Original Message ----- 
  From: Djamel Ouerdane 
  To: brahms-dev-l@bnl.gov 
  Sent: Saturday, June 17, 2000 6:10 PM
  Subject: BrModuleMatchTrack update


  Hi all,

  I have done a minor change in this matching module, that is removed the
  BrUnits::GeV in the evaluation of p_xz. I got some values higher by a
  factor of 1000.

  This should NOT be removed !!!
  Djam

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