[BDXlist] Catania measurements: Data vs MC comparison

[Andrea Celentano]

Dear all,
just want to share with you the newest result from Catania Data vs MC 
comparison: the comparison has been made by selecting events with 
signals from 4 crystals in a column in the matrix above threshold (to 
select vertical cosmic rays): note that in data (blue) and mc (Red) 
histograms the scale is absolute (Hz/MeV), i.e. no "ad-hoc" 
normalization has been used.
Main issues that have been fixed in MC are:

1) Distribution of primary cosmic rays and their normalization - 
according to the proper definition of "flux" as "fluence differential 
wrt time"
2) Spread induced in the charge collection due to the finite crystals 
attenuation length.

I'll talk more about these results next Tuesday meeting, but I'd like to 
share this good result with you.

Bests
Andrea

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