[G12] e+e- resolution

[Michael C. Kunkel]

Greetings,

I am attaching a plot of the e+e- resolution. The method to determine 
the resolution is to fit the phi meson, mass ~ 1GeV, to a Voigtian 
function and let the fit determine the width. With the knowledge of the 
width, the resolution can be determine by width/m_phi ~ width.

 From the plot attached, it can be seen that with a kinematic fitting 
procedure performed the e+e- resolution get better by a factor ~ 2. The 
resolution as I calculate ~ 4.2 MeV.

BR
MK
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