Re: [Brahms-dev-l] tpc drift velocity

Hi Djamel,

I am confused as Bjoern, and do in fact not see the problem
even your interface gives values of ~0.0016 for TPM1 for runs say 8720 and a
considerable number
too the brat code picks up the same values (you can set the tpccalmodule
debug level and it prints the par)
-so how did you see the values 1000 times bigger !?

I believe this values were all committed by EunJoo who did a carafull
analysis of all dA and pp runs in run-3
for tpm1 and tmp2

/fv


----------------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory

e-mail: videbaek@bnl.gov
phone: 631-344-4106
----- Original Message ----- 
From: "Bjorn H Samset" <bjornhs@rcf2.rhic.bnl.gov>
To: "BRAHMS Software list" <brahms-dev-l@lists.bnl.gov>
Sent: Wednesday, April 28, 2004 6:10 AM
Subject: Re: [Brahms-dev-l] tpc drift velocity


> On Wed, 28 Apr 2004, Peter H.L. Christiansen wrote:
>
> > Hej Bjorn,
> >
> > There should be added a BrTpcCalModule for each TPC to the main module
and
> > then a call to SetUseDriftVelocity(kTRUE) or something like that in the
> > bratmain script. Typically it was added in the same loop where the local
> > tracking packages are added.
>
> That's what I suspected, and with this guidance I found it quickly. The
> module is added and seems to set the dv correctly from the calibration db.
> (SetUseDriftVelocity isn't called, but it's kTRUE by default...)
>
> This still leaves me wondering why I see such nice MRS results if the dv
> is off by three orders of magnitude...
>
> Thanks, Peter.
>
> --
> Bjorn H. Samset                           Phone: 22856465/92051998
> PhD student, heavy ion physics            Adr:   Schouterrassen 6
> Inst. of Physics, University of Oslo             0573 Oslo
>                               \|/
> ----------------------------> -*- <-----------------------------
>                               /|\
>
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