Re: [Brahms-dev-l] new 63 GeV centrality calibration

dear steve
I am running into the usual mac problem. The pictures are apprently tiff's
and do not show on my windows.
the text is ok Coul you make a pdf file out of this ?

flemming

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

e-mail: videbaek@bnl.gov
phone: 631-344-4106
----- Original Message ----- 
From: "Stephen J. Sanders" <ssanders@ku.edu>
To: <brahms-dev-l@lists.bnl.gov>
Sent: Friday, June 18, 2004 12:48 PM
Subject: [Brahms-dev-l] new 63 GeV centrality calibration


> Hi,
> Yesterday I committed a new multiplicity to centrality calibration for
> the 63 GeV AuAu runs.
> Djamel had noted that my previous calibration led to an increase in the
> centrality spectrum for
> more central events when the BB trigger was added in addition to the
> ZDC trigger, even if there
> was no downscaling of the ZDC.  The previous calibration was based on
> the false assumption that
> the ZDC would be efficient for central events.  The new calibration
> assumes the ZDC is efficient for
> those peripheral events where the tile multiplicity is >=4, but is NOT
> efficient for the more central
> events.
>
> I've put some details on the ZDC inefficiency at
> http://kunuc6.phsx.ukans.edu/~sanders/63GeV_Centrality/
> CentCalibrationAt63GeV.ppt
>
> At this point there should be reasonably good year 2004 calibrations
> for both 200 GeV AuAu and
> 63 GeV AuAu corresponding to runs (200 GeV) 9389, 9701, (63 GeV) 11298,
>   11523.
>
> We will now start a systematic calibration of the other runs for 04.
>
> Regards,
> Steve
>
>
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> Brahms-dev-l@lists.bnl.gov
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>


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