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<p style="margin-top:0;margin-bottom:0">HI, all,</p>
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<p style="margin-top:0;margin-bottom:0">Here is my estimated eta production.</p>
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<p style="margin-top:0;margin-bottom:0">Liping</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Primexd <primexd-bounces@jlab.org> on behalf of Ilya Larin <ilarin@jlab.org><br>
<b>Sent:</b> Thursday, March 14, 2019 9:46:02 PM<br>
<b>To:</b> Ashot Gasparian<br>
<b>Cc:</b> primexd@jlab.org<br>
<b>Subject:</b> [Primexd] eta yield per number of events</font>
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<div> Hi Ashot</div>
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<span>below is my estimation of the numbers of etas as you asked<br>
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<span>and event selection for them.</span></div>
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<span> Ilya<br>
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<div>He runs with the new beam energy and w/o CDC:<br>
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<div>61465 61468 61469 61470 61471 61472 61473 61474 61475 61476 61477 61478 61479 61480 61481 61482.<br>
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<div>The total number of events according to Sasha 2.307B.</div>
<div>Total run time (most of the time beam on) 27.5hr<br>
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<div>The number of etas:<br>
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<div>(3 FCAL outer/inner layers excluded)<br>
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<div>Eg>1 & Egg>6 264.4K+/-1.3K<br>
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<div>Eg>1 & Egg>9 23.1K+/-0.3K<br>
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<div>Number of exclusive etas:<br>
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<div>(3 FCAL outer/inner layers excluded,<br>
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<div> |Egg-Ebeam|<2, |Cluster1_time-Cluster2_time|<3.5, <br>
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<div> 15<(Cluster1_time+Cluster2_time)/2-beam_time<24,<br>
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<div> |rf_time-beam_time|<2)<br>
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<div>Eg>0.5 & Egg>6 8307+/-267<br>
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<div>Eg>0.5 & Egg>9 3285+/-146<br>
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<div>Thus per 1B events, we have<br>
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<div>3.6K+/-0.11K exclusive eta (Eg 0.5/Egg 6)<br>
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<div>1.4K+/-0.06K exclusive eta (Eg 0.5/Egg 9)<br>
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