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Hi Miriam,<br>
<br>
<blockquote type="cite">The other MOUSE cuts on FinalStateParticles
do indeed help cut out FEEs from this collection. In other words,
the electron momentum cut is just one of the cuts that
discriminates against the FEEs, so if you loosen it, you still
won't have many FEEs sneaking in.</blockquote>
Thanks I agree with the above statement.<br>
<br>
<blockquote type="cite">all the FEEs are in the OtherElectrons
collection. There are no momentum cuts on the OtherElectrons. </blockquote>
A question about above statement: <br>
There is a cut on the electron momentum for the
"FinalStateParticles", and as I understand if electron passes <br>
"FinalStateParticles" cuts, then there is no way it to be in the
"OtherElectrons" in other word's <br>
there is effectively a cut on "OtherElectrons" Is that right?<br>
<br>
Now in this loose MOUSE cuts, I want to put this electron momentum
cut high like 2.1 or high, and I think<br>
this means in the "OtherElectrons" there will not be electrons below
2.1 GeV, am I right?<br>
<br>
If so, then what I am thinking "OtherElectrons" will not be very
effective for FEE studies, since for FEEs analyzer<br>
would like to have the whole (3\sigma+) of Gaussian part. Therefore
In iss361, I put the electron momentum cut 2.6,<br>
that all (most of) electrons will be in the "FinalStateParticles"
collection.<br>
<br>
<blockquote type="cite">
<p style="margin-top:0;margin-bottom:0">I thought I emphasized
this several times in multiple summary talks, but I'll state it
again here: FinalStateParticles are for making V0s out of.
OtherElectrons are for FEEs and Mollers.</p>
</blockquote>
I understand this statement that "FinalStateParticles" are for v0s,
and "OtherElectrons" for Moeller ans FEEs, however, <br>
in my understanding loose cut on electron momentum in the
"FinalStateParticles" doesn't allow to have All FEEs electrons to be
in "OtherElectrons".<br>
<br>
Rafo<br>
<br>
<br>
<div class="moz-cite-prefix">On 12/9/18 8:14 PM, Diamond, Miriam
wrote:<br>
</div>
<blockquote type="cite"
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<p style="margin-top:0;margin-bottom:0">Hi,</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">V0s are made out of
electrons and positrons in the FinalStateParticles collection.
There shouldn't be any FEEs at all in this collection -- all
the FEEs are in the OtherElectrons collection. There are no
momentum cuts on the OtherElectrons. Note, there is no
overlap between the FinalStateParticles collection and the
OtherElectrons collection.</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">The other MOUSE cuts on
FinalStateParticles do indeed help cut out FEEs from this
collection. In other words, the electron momentum cut is just
one of the cuts that discriminates against the FEEs, so if you
loosen it, you still won't have many FEEs sneaking in.</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">I thought I emphasized
this several times in multiple summary talks, but I'll state
it again here: FinalStateParticles are for making V0s out of.
OtherElectrons are for FEEs and Mollers.</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">-- Miriam</p>
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<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b>
Nelson, Timothy Knight<br>
<b>Sent:</b> Wednesday, December 5, 2018 10:15:40 PM<br>
<b>To:</b> Rafayel Paremuzyan<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:hps-analysis@jlab.org">hps-analysis@jlab.org</a>; Diamond, Miriam<br>
<b>Subject:</b> Re: [Hps-analysis] MOUSE cuts</font>
<div> </div>
</div>
<div class="BodyFragment"><font size="2"><span
style="font-size:11pt;">
<div class="PlainText">Thanks Rafo,<br>
<br>
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:<br>
<br>
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.
<br>
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.<br>
<br>
Hopefully Miriam can illuminate this when she comes up for
air.<br>
<br>
Cheers,<br>
Tim<br>
<br>
> On Dec 4, 2018, at 12:43 PM, Rafayel Paremuzyan
<a class="moz-txt-link-rfc2396E" href="mailto:rafopar@jlab.org"><rafopar@jlab.org></a> wrote:<br>
> <br>
> Hi Miriam,<br>
> <br>
> 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,<br>
> while these cut loosening together increase number of
events about 10%.<br>
> <br>
> There was comments that in particular making electron
momentum looser would pick up a lot of FEE events, making<br>
> file size to be significantly larger, however when I
apply loose MOUSE cuts on pass1 data (which doesn't have
MOUSE cuts),<br>
> there is tiny contribution from FEE peak.<br>
> <br>
> 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),<br>
> 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?<br>
> <a
href="https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_presentation_d_1rZJZLh8H0QCzEUCnDxTxFjbMnRhoawH6rxMlTUxbzAs_edit-3Fusp-3Dsharing&d=DwMF-g&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=0HDJrGO9TZQTE97J9Abt2A&m=YFc2llMTWRBBMx2a3SENxP0V6jBW_KGnP3C-xca_imU&s=egcClPd12dF0PxTZUuBfk4X6Jowm-xgSUDtbWubSDeg&e="
moz-do-not-send="true">
https://docs.google.com/presentation/d/1rZJZLh8H0QCzEUCnDxTxFjbMnRhoawH6rxMlTUxbzAs/edit?usp=sharing</a><br>
> <br>
> In these slides blue histograms are from pass1, when
I applied loosened MOUSE cuts, and the red one represents
tpass2 which is reconstructed<br>
> with Original MOUSE cuts.<br>
> <br>
> Other's please comment, if I didn't describe
questions accurately.<br>
> <br>
> Rafo<br>
> _______________________________________________<br>
> Hps-analysis mailing list<br>
> <a class="moz-txt-link-abbreviated" href="mailto:Hps-analysis@jlab.org">Hps-analysis@jlab.org</a><br>
> <a
href="https://mailman.jlab.org/mailman/listinfo/hps-analysis"
moz-do-not-send="true">https://mailman.jlab.org/mailman/listinfo/hps-analysis</a><br>
<br>
</div>
</span></font></div>
</blockquote>
<br>
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