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<p style="margin-top:0;margin-bottom:0">I meant "phi vs. theta vs. p"</p>
<p style="margin-top:0;margin-bottom:0">and not "phi vs. electron"</p>
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<p style="margin-top:0;margin-bottom:0">- Mac<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Clas12_software <clas12_software-bounces@jlab.org> on behalf of Mac Mestayer <mestayer@jlab.org><br>
<b>Sent:</b> Friday, August 23, 2019 11:29:03 AM<br>
<b>To:</b> Harut Avagyan <avakian@jlab.org>; clas12_software@jlab.org <clas12_software@jlab.org><br>
<b>Subject:</b> Re: [Clas12_software] Updated slides for CLAS12 software meeting, tomorrow August 22</font>
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<p style="margin-top:0; margin-bottom:0">Hello Harut;</p>
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<p style="margin-top:0; margin-bottom:0">Very nice studies.</p>
<p style="margin-top:0; margin-bottom:0">I would like to comment on your statement that the
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<p style="margin-top:0; margin-bottom:0">large phi-dependence of the acceptance will necessitate</p>
<p style="margin-top:0; margin-bottom:0">fiducial cuts.</p>
<p style="margin-top:0; margin-bottom:0">I agree, but I think that the fiducial cuts should be in</p>
<p style="margin-top:0; margin-bottom:0">actual geometrical space (for example, the distance of the</p>
<p style="margin-top:0; margin-bottom:0">track's cross position from the endplate) rather than</p>
<p style="margin-top:0; margin-bottom:0">in kinematical space (for example, phi vs. electron).</p>
<p style="margin-top:0; margin-bottom:0">I think this would result in simpler cuts and more reliable</p>
<p style="margin-top:0; margin-bottom:0">simulations.</p>
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<p style="margin-top:0; margin-bottom:0">- Mac<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Clas12_software <clas12_software-bounces@jlab.org> on behalf of Harut Avakian <avakian@jlab.org><br>
<b>Sent:</b> Friday, August 23, 2019 10:29:13 AM<br>
<b>To:</b> clas12_software@jlab.org <clas12_software@jlab.org><br>
<b>Subject:</b> [Clas12_software] Updated slides for CLAS12 software meeting, tomorrow August 22</font>
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<div class="x_x_moz-cite-prefix">On 8/21/19 5:08 PM, Veronique Ziegler wrote:<br>
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<span class="" style="font-variant-ligatures:no-common-ligatures; background-color:rgb(254,254,254); font-size:14px"><font class="" color="#000000">- MC vertex reconstruction studies (Harut)</font></span></div>
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<p>Dear All,</p>
<p>Following Aug 22 discussion I updated the slides in <a class="x_x_moz-txt-link-freetext" href="https://userweb.jlab.org/~avakian/tmp/clasdis-mc-vertex.pdf">
https://userweb.jlab.org/~avakian/tmp/clasdis-mc-vertex.pdf</a> ( see slides from 12-15)
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<p>with plots for fixed momentum and Vz=-3. Things look more clear, but tendencies didn't change.</p>
<p>The acceptance reduction in phi with energy of electrons, indicates the need of all kind of fiducial cuts in fine momentum bins.</p>
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<p>Some more detailed plots for momentum range 2.4<P_pion<2.6 for for piplus (pip) and pimunus (pim) are in </p>
<p><a class="x_x_moz-txt-link-freetext" href="https://userweb.jlab.org/~avakian/tmp/clasdis-pip.pdf">https://userweb.jlab.org/~avakian/tmp/clasdis-pip.pdf</a></p>
<p><a class="x_x_moz-txt-link-freetext" href="https://userweb.jlab.org/~avakian/tmp/clasdis-pip.pdf">https://userweb.jlab.org/~avakian/tmp/clasdis-pip.pdf</a></p>
<p>The plots on the differences in energy, polar angle and azimuthal angle from duiffere of generated and reconstructed quantities, shows
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<p>some dependence on the azimuthal angle.</p>
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<p>Regards,</p>
<p>Harut<br>
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