sPHENIX EMCal discussion

[Edward Kistenev <kistenev AT bnl.gov>]

Craig, nice talk. One caveat - I would be very much worried showing the 
picture with positive second derivative as EMCal  linearity plot. There can't 
be any explanation to this behavior except misrepresentation of unknown 
(artifact of analysis). You need a very short attenuation length in the 
calorimeter and certainly above 18X0 depth of the calorimeter to even start 
thinking of such picture. It is absolutely inconsistent with measured att. 
length of 200cm. In fact - I would include that picture (at least have it as 
a backup) - this will be the first question asked when people will see this 
linearity plot. 

                        Edward


On May 11, 2016, at 11:31 AM, Craig Woody <woody AT bnl.gov> wrote:

Dear All,
 Here is a draft of my talk for the CALOR 2016 conference coming up next 
week. I've included some plots on the results of our recent beam test at 
Fermilab which we discussed at our EMCAL meeting yesterday, but of course not 
everybody was there for that discussion. The results certainly look very 
encouraging and I think we can definitely claim that they achieve our design 
goals for sPHENIX, but we clearly don't want to overstate any of these 
results yet since we're still at a very early stage of the analysis. I think 
we came up with a reasonable way to present them during our meeting 
yesterday, but please have a look at the slides and let me know if you have 
any comments.

Many thanks,
Craig
<CALOR_2016_sPHENIX_draft.pdf>_______________________________________________
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