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<div style="line-break:after-white-space">Hi Gregory,

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<div>this looks already quite (more) beautiful - I’m sure Harut (among others) will appreciate this. MAYBE it would even be possible to add the results from Noémie’s analysis on top of yours (additional data points with both horizontal and vertical “error”

 bars)? She posted some results and her method at <a href="https://clasweb.jlab.org/wiki/index.php/Elastic_Analysis_for_PbPt_Extraction">https://clasweb.jlab.org/wiki/index.php/Elastic_Analysis_for_PbPt_Extraction</a></div>

<div>(Noémie, can you add the results for Pt for the proton?)</div>

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<div>- Sebastian<br id="x_lineBreakAtBeginningOfMessage">

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<div>On Apr 23, 2024, at 11:23 AM, Gregory Matousek <gregory.matousek@duke.edu> wrote:</div>

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Hi Sebastian,</div>

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To address your concern about the Pt blocks, I attached a few slides showing the same PbPt's for NH3 and ND3, now adding the run start dates and the corresponding RCDB Tpol. My explanation is that, when I made these asymmetry plots originally, the cooking was

 (and I think is?) still in progress. It looks like the Tpols I measure with A_LL match with the Tpol blocks of the RCDB. I am rerunning this analysis again one week later, hoping that more of the NH3 and ND3 runs since then have been cooked. I also see that

 the 2<sup>nd</sup> block of NH3 runs does not look as "erratic" after rescaling the y-axis, and it seems nicely in line with the RCDB Tpol.</div>

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I will also look into making that A1(x) vs. x plot and get it back to you by the end of the day.</div>

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Best,</div>

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Greg</div>

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<font face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b><span class="x_Apple-converted-space"> </span>Sebastian Kuhn <kuhn@jlab.org><br>

<b>Sent:</b><span class="x_Apple-converted-space"> </span>Tuesday, April 16, 2024 5:45 PM<br>

<b>To:</b><span class="x_Apple-converted-space"> </span>Gregory Matousek <gregory.matousek@duke.edu><br>

<b>Cc:</b><span class="x_Apple-converted-space"> </span>rgc_analysis@jlab.org <rgc_analysis@jlab.org>; Anselm Vossen, Ph.D. <anselm.vossen@duke.edu><br>

<b>Subject:</b><span class="x_Apple-converted-space"> </span>Re: [Rgc_analysis] [EXTERNAL] A_LL PbPt for pass1</font>

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Hi Gregory,

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<div>this is a very nice and comprehensive study. Eventually, we should do the following:</div>

<div>- Simplify the plots by showing ONLY FC-corrected PbPt values (I think the C target “polarizations” show that those give the best agreement with the expected value of 0)</div>

<div>- If possible, put ALL runs for a given target type (NH3, ND3) on a single plot </div>

<div>- Further down the line: Once we have all C, MT, CH2 etc. runs analyzed, recalculate the dilution factors based on the full equations and the full statistics.</div>

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<div>Meanwhile, just a couple questions just to make sure I am interpreting the results correctly:</div>

<div>1) NH3: Part 1/2 seems to show rather stable PbPt for each of the 2 halfs (Pt > 0 and Pt < 0). Do you agree? Meanwhile, Part 2/2 shows a bit more scatter (but that may be partially due to the zoomed-in vertical scale. However, from Part 1 and 2 it appears

 that we only had 3 blocks - one with Pt > 0, one with Pt <0, and then again one with Pt>0. This is a bit confusing to me, as the monitoring plot seems to show several positive Pt periods (5 if I count correctly) interspersed with 3 negative Pt periods, even

 when discounting the runs before July. See attached plot. Can you explain the discrepancy?</div>

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<div>2) ND3: Again, if I read Parts 1/3, 2/3 and 3/3 in sequence, it appears to me that you count only 1 positive Pt, 1 negative Pt, then again 1 positive Pt, followed by just 3 runs with negative Pt. Actually, the 4 blocks agree with 4 blocks I see in the

 monitoring plot, but those seem to have a lot more runs, especially for the last negative Pt block. Did you not have all of these runs available when you ran your analysis?</div>

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<div>Maybe I misunderstood something - it would help if we could translate run number into date…</div>

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<div>Thanks - Sebastian</div>

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<div>On Apr 16, 2024, at 2:00 PM, Gregory Matousek via Rgc_analysis <rgc_analysis@jlab.org> wrote:</div>

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Hi all,</div>

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Here is a PDF compiling the pass1 PbPt as of today. I broke this apart into the NH3, ND3, and C cooking. I also showed the raw count asymmetry for the individual runs, and the FCup asymmetries. Please let me know if you have any questions or need clarification!</div>

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Best,</div>

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Greg</div>

<span id="x_x_cid:923CF0F4-7EBF-494C-9DD0-011DD136B6D3"><RG-C Summer2022 DIS A_LL's.pdf></span><span style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">_______________________________________________</span><br style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">

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