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Thanks Miriam,<br>
<br>
<blockquote type="cite"><span style="font-size: 12pt;"><span>It
depends how many FEEs pass the other FinalStateParticles cuts
-- and when the other cuts are set to their default
values, this number is very low, so the statement is basically
false.</span></span></blockquote>
<br>
Other two cuts in the FinalStateParticle, are "GoodnessOfPID <
10" and |t_trk - t_cl - offset| < 6ns,<br>
both of these are quite loose cuts, and I think they should not cut
most of FEEs;<br>
Any way these other two cuts are just particle quality cuts, if
particle fails "GoodnessOfPID" or "Delta_tr trk_clust", then<br>
most probably they will not be used for FEEs too.<br>
<br>
To try to demonstrate it, I run over pass1 dsts where
finalstateparticles have all particles in them.<br>
<br>
In the plot below by blue shown electrons that pass Both the
|GoodnessOfPID < 10.| and |t_trk - t_cl - offset| < 6ns.<br>
and by red shown electrons that failed one of above cuts.<br>
<br>
This show that around 70%+ of FEEs will go into "FinalStatParticles"
collection.<br>
<br>
Rafo<br>
<br>
<br>
<img src="cid:part1.AF37B661.9CE282C3@jlab.org" alt=""><br>
Rafo<br>
<br>
<br>
<div class="moz-cite-prefix">On 12/9/18 9:15 PM, Diamond, Miriam
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:MW2PR07MB401060074B5175A0E2FB78118DA50@MW2PR07MB4010.namprd07.prod.outlook.com">
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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">It is correct that<span
style="font-size: 12pt;"> if an electron passes all the </span><span
style="font-size: 12pt;">"FinalStateParticles" cuts, then
there is no way for it to be in the "OtherElectrons".</span></p>
<p style="margin-top:0;margin-bottom:0"><span style="font-size:
12pt;"><br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><span style="font-size:
12pt;">If you put the electron momentum cut very high (e.g.
at 2.1): it is still very possible that a 2.0 GeV electron
will fail the *other* FinalStateParticles cuts. Then it will
*not* go into the FinalStateParticles collection, and it
*will* still appear in OtherElectrons. So, the statement "<span>loose
cut on electron momentum in the FinalStateParticles
doesn't allow to have all FEEs electrons to be in
OtherElectrons" is not necessarily true. It depends how
many FEEs pass the other FinalStateParticles cuts -- and
when the other cuts are set to their default values, this
number is very low, so the statement is basically false.</span></span></p>
<p style="margin-top:0;margin-bottom:0"><span style="font-size:
12pt;"><span><br>
</span></span></p>
<p style="margin-top:0;margin-bottom:0"><span style="font-size:
12pt;"><span>-- Miriam</span></span></p>
</div>
<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>
Rafayel Paremuzyan <a class="moz-txt-link-rfc2396E" href="mailto:rafopar@jlab.org"><rafopar@jlab.org></a><br>
<b>Sent:</b> Sunday, December 9, 2018 6:07:08 PM<br>
<b>To:</b> Diamond, Miriam; Nelson, Timothy Knight<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:hps-analysis@jlab.org">hps-analysis@jlab.org</a><br>
<b>Subject:</b> Re: [Hps-analysis] MOUSE cuts</font>
<div> </div>
</div>
<div style="background-color:#FFFFFF">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="x_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>
</div>
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="x_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="x_moz-txt-link-abbreviated"
href="mailto:hps-analysis@jlab.org"
moz-do-not-send="true">
hps-analysis@jlab.org</a>; Diamond, Miriam<br>
<b>Subject:</b> Re: [Hps-analysis] MOUSE cuts</font>
<div> </div>
</div>
<div class="x_BodyFragment"><font size="2"><span
style="font-size:11pt">
<div class="x_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="x_moz-txt-link-rfc2396E"
href="mailto:rafopar@jlab.org"
moz-do-not-send="true">
<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="x_moz-txt-link-abbreviated"
href="mailto:Hps-analysis@jlab.org"
moz-do-not-send="true">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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