sPHENIX EMCal discussion

["Huang, Jin" <jhuang AT bnl.gov>]

Hi, Gabor

Thank you for the introducing the fast hadron model, which is a nice upgrade 
coming to our fast simulation. 

For your request on hadron shower shape, it is one of the primary goal (at 
least for me) from the test beam. As you mentioned, without the final 
calibration, we do not have a final hadron line shape from the 2016 test yet. 
But there are three information source to get an approximate shape to start 
your tuning:

1. Final 2014 eRD 1 test beam data from Oleg Tsai, which was used for our 
initial Geant4 verification: see sPHENIX pre-CDR Figure 5.19
2. 2016 sPHENIX beam test full simulation: 
https://wiki.bnl.gov/sPHENIX/index.php/T-1044/EMCal_good_run_note#Simulation_Expectation_2
 
3. 2016 sPHENIX beam test data with MIP calibration, which is histograms like 
this one (blue - green): 
https://wiki.bnl.gov/sPHENIX/index.php/File:T1044_2609_Energy_sum.png . It is 
definitely going to change after the final calibration. (we have 700 
histograms from online production QA, $$  ;-)

If you need ROOT histogram file of any of these choices, I will be happy to 
dig them out.

Cheers,

Jin


______________________________

Jin HUANG

Brookhaven National Laboratory
Physics Department, Bldg 510 C
Upton, NY 11973-5000

Office: 631-344-5898
Cell:   757-604-9946
______________________________


> -----Original Message-----
> From: sphenix-emcal-l-bounces AT lists.bnl.gov [mailto:sphenix-emcal-l-
> bounces AT lists.bnl.gov] On Behalf Of Gabor David
> Sent: Monday, May 16, 2016 9:48 PM
> To: sphenix-emcal-l AT lists.bnl.gov
> Subject: [Sphenix-emcal-l] Offer: 10c per testbeam charged pion plot :-)
> 
> 
>       Dear All,
> 
>       in order to tune the model that does fast hadron energy deposit in
> the sPHENIX ECAL I would need plots of energy deposit by known
> momentum pions from the Fermilab testbeam.  The only thing I could find so
> far war a few histoes in Abhisek's April 21 presentation, but there the ECAL
> was only an afterthought.
> 
>       Yes, I know, the ECAL is not fully calibrated yet - but even
> approximate shapes as function of momentum would help at this stage.
> 
>       Thanks,
> 
>       Gabor
> 
> --
> Gabor David  (david AT bnl.gov)
> Brookhaven National Laboratory
> Physics Department, Bldg 510/c
> UPTON NY 11973
> Tel: (631)344-3016
> FAX: (631)344-3253
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