Re: Centrality Cut Variations (RE: [Brahms-dev-l] dAu dst varsion 08)

From: Stephen Sanders <ssanders@ku.edu>
Date: Thu Jan 01 2004 - 20:43:35 EST
OK, These are runs that were not on the earlier list of runs to check.
I've looked at a couple and they all seem to
correspond to the Si array going into oscillation.  I've added them
to the hardcoded list of runs in BrMultCentModule.cxx where we
only use the TMA multiplicity.

I notice that all of the runs of JH's list of "could be improved"
correspond to runs where we only use the TMA.  At the moment
the mult to cent calibration is not changed for the TMA only runs
as compared to the runs where we use the average of the TMA and
SiMA results.  This suggest we might need a "special" mult-to-cent
calibration to correspond to runs without the SiMA.   I'll look into it.
(This is probably also not too surprising considering the Landau
tails found with the SiMA.)

..steve

On Tuesday, December 30, 2003, at 12:38 PM, J.H. Lee wrote:

> Hi, Bjorn,
>
> I've looked at variations on centrality selections in DSTv08.
> There still seems to be a few runs not really calibrated:
> 8309,8310,8316,(small runs: 8452,8453,8454),8494,8506
> And some runs might be benefited from recalibration:
> 8307-8345, 8501-8503.
> I also would like to come up with trigger inefficiency correction
> factors (function) as a function of centrality. When Steve comes
> here tomorrow, we can discuss about that.
>
> Attached: R(0-20%/0-100%) vs. run number.
> I've also attached .C file.
>
> JH
>
>
>> -----Original Message-----
>> From: brahms-dev-l-bounces@lists.bnl.gov
>> [mailto:brahms-dev-l-bounces@lists.bnl.gov] On Behalf Of
>> Bjorn H Samset
>> Sent: Monday, December 29, 2003 5:41 AM
>> To: BRAHMS Software list
>> Subject: [Brahms-dev-l] dAu dst varsion 08
>>
>>
>>
>> Hi Zhongbao and others.
>>
>> I've finally been able to produce a set of dAu dsts that
>> shoud contain all the latest calibs etc. and match the pp
>> version from just before christmas.
>>
>> Files:
>> ltr: /brahms/data13/data/run03/dau/200 (ver 4)
>> gtr: /brahms/data09/data/run03/dau/200 (ver 8)
>> dst: /brahms/data09/data/run03/dau/200 (ver 8)
>>
>> I hope they are OK (I can still not view plots from where I
>> am...) and maybe remove a problem or two... Mathcing calibs
>> have been redone based on the latest local tracks.
>>
>> Good luck :-)
>>
>> --
>> Bjorn H. Samset                           Phone: 22856465/92051998
>> PhD student, heavy ion physics            Adr:   Schouterrassen 6
>> Inst. of Physics, University of Oslo             0573 Oslo
>>                               \|/
>> ----------------------------> -*- <-----------------------------
>>                               /|\
>>
>> _______________________________________________
>> Brahms-dev-l mailing list
>> Brahms-dev-l@lists.bnl.gov
>> http://lists.bnl.gov/mailman/listinfo/brahms-> dev-l
>>
> <cen_variation_v08.gif><cen_variation_v08.C>


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Received on Thu Jan 1 20:44:06 2004

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