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

I've placed a .pdf version of the slides referenced below at
http://kunuc6.phsx.ukans.edu/~sanders/63GeV_Centrality/ 
CentCalibrationAt63GeV.pdf

...Flemming tells me that the unfortunate non-Mac users out there can't  
read my
ppt file...
...steve

On Friday, June 18, 2004, at 11:48 AM, Stephen J. Sanders wrote:

> 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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