Ciao Riccardo.
I have few questions about your study.
1) Why is delta_e of the B-reco correlated with the M_nu resolution ?
2) You do not seem to have statistical problems. Why not using higher
purity sample ?
3) The structure of the m_nu distribution seems to be more complicated
than a double gaussian: you maybe need to describe it better befor you
can draw conclusions on the resolution.
Cheers
Franco
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