[PRad] efficiency and checklist

gasparan at jlab.org gasparan at jlab.org
Fri Dec 9 08:58:47 EST 2016


  Hi Maxime,

 One addition to your check-list, before physics:
 1) demonstrate detection capability of HyCal for electron(s)
    and radiated hard photons;
 2)show improvement on event selection efficiency when applying
   this method (2d plots).

 Ashot


> Dear colleagues,
>
> I have updated a slide of one of my presentation of last friday to make
> the formula for efficiency more understandable. You can find it here:
> https://wiki.jlab.org/pcrewiki/images/5/54/161202_eff.pdf
> This analysis is closely related to the one done in primex by Victor
> Tarasov: https://www.jlab.org/primex/primex_notes/trig_eff.pdf; with some
> changes in the cuts since the beam and detector conditions were different.
>
> I've also written a small checklist:
> https://wiki.jlab.org/pcrewiki/images/0/0c/Checklist.pdf. Let me know if
> there are some things to add, remove or correct.
>
> Best regards,
> Maxime
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