[Hps-analysis] mad5VSdata!

[Sho Uemura]

Looks weird. Can you send your code again? You should be requiring 
p(e-)<0.8 but I think there must be some other problem as well.

On Wed, 27 Jul 2016, Luca Colaneri wrote:

> I removed all info from Ecal, now it's just |p| everywhere....now everything 
> looks wierder..
>
>
> Il 26/07/16 17:44, Sho Uemura ha scritto:
>> Yes, the comparison is consistent. But changing to SVT momentum (and 
>> getting rid of the E(e-)+E(e+)<1.05 cut you have) will make the plots 
>> consistent with everyone else's.
>> 
>> Luca: The ECal energy is not completely corrected for edge effects (that is 
>> impossible). So the (large) fraction of pair events near the edges of the 
>> ECal often have ECal energies that are lower than the SVT momenta, so an 
>> Esum distribution made with the ECal will always be missing a lot of stuff 
>> at high Esum.
>> 
>> Maurik: Luca's plots do not have a tight fiducial cut. It is 55 mrad >= 
>> |theta_y| >= 15 mrad.
>> 
>> On Tue, 26 Jul 2016, Luca Colaneri wrote:
>> 
>>> ok, good to know. Still, I did the same on MC, so at least the comparison 
>>> is consistent.
>>> 
>>> Why using Ecal rather tha svt makes it so different?
>>> 
>>> 
>>> Il 26/07/16 16:10, Sho Uemura ha scritto:
>>>> I think I see a problem - you're histogramming the electron and positron 
>>>> energies (which come from the ECal) instead of the momentum magnitude. 
>>>> That explains why your esum distribution for data looks funny.
>>>> 
>>>> On Tue, 26 Jul 2016, Luca Colaneri wrote:
>>>> 
>>>>> 
>>>>> Good news everyone!
>>>>> 
>>>>> mad5 recon data looks good! pdf in attachment
>>>>> 
>>>>> I also attach the piece of code I've been using so far to read recon 
>>>>> data (both exp and MC)  using the slcio c++ api.
>>>>> 
>>>>> 
>>>>> Bests
>>>>> 
>>>>> L.
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>> 
>>> -- 
>>> Luca Colaneri, PhD
>>> Post-doctorant/ Computational Platforms Consultant
>>> Institut de Physique Nucléaire d'Orsay / University of Connecticut
>>> Contacts: luca.colaneri at roma2.infn.it
>>>          colaneri at jlab.org
>>>          colaneri at ipno.i2p3.fr
>>> 
>
> -- 
> Luca Colaneri, PhD
> Post-doctorant/ Computational Platforms Consultant
> Institut de Physique Nucléaire d'Orsay / University of Connecticut
> Contacts: luca.colaneri at roma2.infn.it
>          colaneri at jlab.org
>          colaneri at ipno.i2p3.fr
>
>