<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div>Well, if we were to fit the polarization many different times within a run, we would need a mechanism for storing, and then looking up, the fit results relevant for each given range of events. Do we have a mechanism that can do this yet? Or am I thinking about this wrong? </div><div><br></div><div> - Paul</div><div><br></div><div><div>On Feb 22, 2016, at 8:30 PM, Curtis A. Meyer <<a href="mailto:cmeyer@cmu.edu">cmeyer@cmu.edu</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="Content-Type" content="text/html charset=us-ascii"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Yes, but it does depend on the photon energy. E.g. how far away from the coherent edge are you?<div class="">Events near the edge will have the highest degree of linear polarization, while those far away will</div><div class="">have less. If the edge is stable, the function is pretty simple., but we still need to be able to assign</div><div class="">both a polarization and a polarization direction to our photons on an event-by -event basis.</div><div class=""><br class=""></div><div class="">Curtis<br class=""><div class="">
<span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div class=""><div class="">---------</div><div class="">Curtis A. Meyer<span class="Apple-tab-span" style="white-space: pre; "> </span>MCS Associate Dean for Faculty and Graduate Affairs</div><div class="">Wean: (412) 268-2745<span class="Apple-tab-span" style="white-space: pre; "> </span>Professor of Physics</div><div class="">Doherty: (412) 268-3090<span class="Apple-tab-span" style="white-space: pre; "> </span>Carnegie Mellon University</div><div class="">Fax: (412) 681-0648<span class="Apple-tab-span" style="white-space: pre; "> </span>Pittsburgh, PA 15213</div><div class=""><a href="mailto:curtis.meyer@cmu.edu" class="">curtis.meyer@cmu.edu</a><span class="Apple-tab-span" style="white-space: pre; "> </span><a href="http://www.curtismeyer.com/">http://www.curtismeyer.com/</a></div></div><div class=""><br class=""></div></span><br class="Apple-interchange-newline">
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<br class=""><div><blockquote type="cite" class=""><div class="">On Feb 22, 2016, at 8:25 PM, Paul Mattione <<a href="mailto:pmatt@jlab.org" class="">pmatt@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">I was under the impression that, for a given beam energy, the polarization would be relatively constant over the course of a run. </div><div class=""><br class=""></div><div class=""> - Paul</div><br class=""><div class=""><div class="">On Feb 22, 2016, at 8:22 PM, Curtis A. Meyer <<a href="mailto:cmeyer@cmu.edu" class="">cmeyer@cmu.edu</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite" class=""><meta http-equiv="Content-Type" content="text/html charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Everyone,<div class=""><br class=""></div><div class=""> I am not sure if we have this capability yet, but as we move forward we are going to</div><div class="">want the REST files to contain the photon polarization. This is likely a function that</div><div class="">we have to call when we have decided what the correct photon is, but we should have</div><div class="">the hooks in place to do this on an event-by-event basis.</div><div class=""><br class=""></div><div class="">Curtis<br class=""><div class="">
<span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div class=""><div class="">---------</div><div class="">Curtis A. Meyer<span class="Apple-tab-span" style="white-space: pre; "> </span>MCS Associate Dean for Faculty and Graduate Affairs</div><div class="">Wean: (412) 268-2745<span class="Apple-tab-span" style="white-space: pre; "> </span>Professor of Physics</div><div class="">Doherty: (412) 268-3090<span class="Apple-tab-span" style="white-space: pre; "> </span>Carnegie Mellon University</div><div class="">Fax: (412) 681-0648<span class="Apple-tab-span" style="white-space: pre; "> </span>Pittsburgh, PA 15213</div><div class=""><a href="mailto:curtis.meyer@cmu.edu" class="">curtis.meyer@cmu.edu</a><span class="Apple-tab-span" style="white-space: pre; "> </span><a href="http://www.curtismeyer.com/" class="">http://www.curtismeyer.com/</a></div></div><div class=""><br class=""></div></span><br class="Apple-interchange-newline">
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