[Hps-analysis] MOUSE cuts

[Nelson, Timothy Knight]

Thanks Rafo,

I think these are the right questions.  Going a bit looser is OK as long as it doesn’t blow up volume.  The key questions for me were:

1) I had thought there were more FEE contributing so that it would up the V0 collection. The fact that this didn’t happen made me wonder whether there was a problem somewhere in Rafo’s procedure relative to how these cuts were supposed to be applied. 
2) If it’s really true there are no FEE collected here, then isn’t that a problem in itself?  I thought the OtherElectrons would be useful for FEE studies.  Again… this doesn’t fit with what I expected based on previous presentations.

Hopefully Miriam can illuminate this when she comes up for air.

Cheers,
Tim

> On Dec 4, 2018, at 12:43 PM, Rafayel Paremuzyan <rafopar at jlab.org> wrote:
> 
> Hi Miriam,
> 
> Today in the analysis meeting, I was trying to justify that we can loosen some of MOUSE cuts to be safer in the future analysis step,
> while these cut loosening together increase number of events about 10%.
> 
> There was comments that in particular making electron momentum looser would pick up a lot of FEE events, making
> file size to be significantly larger, however when I apply loose MOUSE cuts on pass1 data (which doesn't have MOUSE cuts),
> there is tiny contribution from FEE peak.
> 
> I think this happens because other MOUSE cuts already cut out most of FEE peaks (Mostly e-e+ be in opposite half and P_sum < 2.8 cuts),
> however you are the best person to comment on this, whether the figure shown in Slide 3 of the following document is reasonable for you?
> https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_presentation_d_1rZJZLh8H0QCzEUCnDxTxFjbMnRhoawH6rxMlTUxbzAs_edit-3Fusp-3Dsharing&d=DwIGaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=J4PP6Zl8IyGHpsqWaKegORCYw8hoCHePTw5O95a5lqQ&m=0dVNsLcdPOX3Hbr8J_9mkRTm6PSXmpRa2yT7U5tJG10&s=EMlJ1rXp5X2q3LwiHg6s_6BngEKv2Y7XJUdLRrFpbaM&e= 
> 
> In these slides blue histograms are from pass1, when I applied loosened MOUSE cuts, and the red one represents tpass2 which is reconstructed
> with Original MOUSE cuts.
> 
> Other's please comment, if I didn't describe questions accurately.
> 
> Rafo
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