Print

Print


Hi all,

I have updated the table in
http://www.slac.stanford.edu/~sacco/efficiency/eff.html
with some of  Daniele's suggestions. I'm still working on the old
production with no killing nor neutral smearing.

All the best,

Roberto

>
> Ciao Roberto,
>
>  this page is very nice and helpful.
>
>  Few comments:
>
>  - lepton ID looks different but it should be somehow expected since we
>    are not doing any killing
>  - there is something really wrong with q2 that should be fixed in the
>    code
>  - mm2 for B0 looks suspicious
>  - track selection looks less efficient
>
>  Then lepton ID and q2 distributions probably explain half of the
> discrepancy.
>
>  I propose three other checks:
>
>  1) recalculate the eff numbers with no cut on q2 and nle
>  2) rerun the old signal production with no killing and no neutral
>     smearing at all and compare again
>  3) recalculate the table with a tight cut on the purity, i.e. intpur>0.5
>     (here you are not fitting mes and the different combinatorics between the old and new
>     Beta production can play a role).
>
>    Daniele
>