Re: [Brahms-dev-l] MRS momentum distribution

Hi

This is unusual, I have certainly not seen anything like that before. To check where stuff went bad, check the histograms in the gtr 
production (for Mrstracking and the refitting). In general the MRS.fP comes from the global track ie. refitting while the fD5.fP 
from the initial matching.
Hopefully this helps. Please when you send out pleas for help indicate what runs, and dst versions,, your are looking at.

Flemming

--------------------------------------------
Flemming Videbaek
Physics Department
Bldg 510-D
Brookhaven National Laboratory
Upton, NY11973

phone: 631-344-4106
cell:       631-681-1596
fax:        631-344-1334
e-mail: videbaek @ bnl gov
----- Original Message ----- 
From: "Bekele, Selemon" <bekeleku_at_ku.edu>
To: <brahms-dev-l_at_lists.bnl.gov>
Sent: Thursday, January 04, 2007 7:05 PM
Subject: [Brahms-dev-l] MRS momentum distribution


>
> Hi Brahms,
>
>    I started looking into the MRS spectra. I ran into
> a problem when trying to access the momentum distribution:
>
>  MRS_fP gives 0
>  MRS_fD5_fP gives both positive and negative values
>
> could this be a problem in the dst production?
>
> Please have a look at
>
>   http://www4.rcf.bnl.gov/~tigist/MrsCheck/
>
>
> Thanks
>
> Selemon,
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> Brahms-dev-l mailing list
> Brahms-dev-l_at_lists.bnl.gov
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> 

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