sPHENIX HCal discussion

[Abhisek Sen <sen.abhisek AT gmail.com>]

Hello HCALers,

   Anne's IEEE talk is next week. So I have added "sPHENIX preliminary" label to HCAL plots for everyone to review. Please let me know if you have comments. 

HCAL Standalone plots:

http://www.phenix.bnl.gov/WWW/publish/abhisek/sphenix/preliminary/HCAL_standalone_signal.pdf

http://www.phenix.bnl.gov/WWW/publish/abhisek/sphenix/preliminary/HCAL_standalone_res.pdf

http://www.phenix.bnl.gov/WWW/publish/abhisek/sphenix/preliminary/HCAL_standalone_linearity.pdf

http://www.phenix.bnl.gov/WWW/publish/abhisek/sphenix/preliminary/HCAL_standalone_eoverpi.pdf

HCAL+EMCAL hadron measurement plots:

http://www.phenix.bnl.gov/WWW/publish/abhisek/sphenix/preliminary/sPHENIX_hadron_signal.pdf

http://www.phenix.bnl.gov/WWW/publish/abhisek/sphenix/preliminary/sPHENIX_hadron_res.pdf

http://www.phenix.bnl.gov/WWW/publish/abhisek/sphenix/preliminary/sPHENIX_hadron_linearity.pdf

Please refer to testbeam paper for analysis details. Few comments:

1/ The nonlinearity observed in HCAL is a preamp saturation effect. A suggestion during the HCAL workfest was to remove the saturation points and rerun the analysis to improve the linearity. We made a new production but results were same. I think the fitting changes were not included. Jin is looking more into it. We will likely have one more new production.

2/ I intentionally did not add e/pi plot for sPHENIX configuration. That needs more internal discussion. 

Please let me know if you have any comments.

Cheers,

Abhisek