[Frost] Carbon Update

[Stuart Fegan]

Hi,

Just sending a follow-up plot illustrating what I was talking about in 
yesterday's meeting.  The basic details are in my presentation from last 
week, and the attached plot shows a Kaon missing mass spectrum with a 
carbon function of the form /pol(3) + Gaussian + Gaussian /subtracted.  
This over-subtracts in a similar way to the single Gaussian version from 
last week, so I add back a pol(3) function that would describe the 
smaller non-carbon background.  This is all done in the range MMK = 0.9 
- 1.475 GeV, hence the discontinuity at those points.  Right now, I 
can't describe this as anything other than cheating, but if there were a 
way to simultaneously fit the two polynomials before subtraction, it 
might be possible to avoid this, or at least explain why the second 
polynomial needs to be added back after fitting the first one.

Cheers,
Stuart

-- 
Dr Stuart Fegan
Honourary Research Associate
Nuclear Physics Group
University of Glasgow
(Currently at INFN - Sezione di Genova)

E-mail: s.fegan.glasgow at gmail.com

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