more radiative MC plots

From: Adrian T Sindile (asindile@cisunix.unh.edu)
Date: Mon Feb 13 2006 - 22:07:31 EST


Hi,
Please take a look at the comparison between real data, unradiated MC and
radiated MC for yield as a function of Q^2 (after all cuts, in one plot):

http://einstein.unh.edu/~adrian/normYieldsComp.gif

and as a function of W (with no cuts):

http://einstein.unh.edu/~adrian/wComp2.gif

The histograms have been again normalized to the integral of counts.
In both plots, blue is unradiated MC, black is real data, and red is
radiated MC.

For the W plot, the agreement between radiated MC and real data is very
good up to W = 0.9 GeV/c^2, it is a little worse after that. The radiative
tails are pretty similar, in my opinion (note that no cuts were applied,
so there might still be junk in the real data used for this plot).

I was in the middle of addressing Michael's third item below (actually, I
was trying to plot A(born)-A(born + MASCARAD)/A(born with error bars) -
suggested by Vitaliy last time) when the network started to crawl... hope
to have it by Wednesday.

Adrian

> -Status of radiated MC (ASUNH)
> Shown was the normalized yield as measured compared with the
> MASCARAD-MC result (with Hoehler form factors). Very good
> agreement. Suggested to plot
> 1) Unradiated and radiated MC result vs. Q2 after all cuts in one plot
> 2) Measured and MC yield as a function of W (without W-cut!)
> 3) The ratio of measured/MC yields (with errors) to spot details of the
> agreement
>



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