Re: [Brahms-dev-l] new efficiency maps

From: Pawel Staszel <ufstasze@if.uj.edu.pl>
Date: Fri Jun 02 2006 - 10:15:15 EDT
Hi,

Hongyan Yang wrote:

> Hi Pawel,
>   thanks a lot! Just before you wrote the mail, I noticed this file is 
> at its place. I am working on testing it right now - but by the way, I 
> noticed you put an extra comments like "Fiducial cuts on y in T5 
> +-14cm" - could you tell me what the reason for doing it specifically 
> is? And this cut may related to the generation of the acceptance map. 

To the acceptance maps and data maps. The efficiency maps are averaged 
over y coordinate, so we have to do average
over the same range as used for data. Note, that +-14cm refer to global 
coordinate system and not to local system of T5 volume.
Any way because detector efficiencies look quite flat in y is does not 
make any significant difference.

Cheers,
Pawel.

>
>
> Thanks again,
> Hongyan
>
> Pawel Staszel wrote:
>
>> Hi,
>> I put file with new efficiency maps for runs requested by Hongyan 
>> (dau, run03) in to the official place 
>> (/brahms/data08/corrections/trackEff). The file name is built 
>> according to the modified convention:
>> (MappedEffic_run03_dau_200_PSv1.root). I also added method 
>> SetSuffix() in EfficiencyCalculator (banapp)
>> that allow to  select map creator string ("PSv1").
>>
>> Hongyan, could you test the maps and tell me whether the stuff works 
>> right?
>> Thanks,
>> Pawel.
>>
>
>

-- 
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| Pawel Staszel                                                        |
| Jagiellonian University                                              |
| Institute of Physics            email:      ufstasze@if.uj.edu.pl    |
| Reymonta 4                      phone:      (+48) 12 663 5705        |
| Krakow 30059                    FAX:        (+48) 12 633 7086        |
| Poland                                                               |
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Received on Fri Jun 2 10:15:43 2006

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