<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hi</div><div><br></div>Michael, You are right, we don't gain much in an event-by-event (compare to Gluex),<div>just different method= different systematics, we will have to wait and see who does it</div><div>with small systematic errors.<div><br><div>Here are some points where we can do better</div><div><br></div><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">Particle ID</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">Q2 dependence </font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">Thin targets </font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">Polarized targets</font></div></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">Nuclear Targets</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">Detached vertices</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">...</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3"><br></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">Are those relevant to Cascades?</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3">-Carlos</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 24px/normal Arial; "><font class="Apple-style-span" size="3"><br></font></div><div><br><div><div>On Jun 14, 2012, at 5:02 PM, Michael Dugger wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><br>Perhaps I am thinking about this all wrong, but I don't see how we gain <br>much -if anything- by measuring the polarization on an event basis.<br><br>-Michael<br><br>On Thu, 14 Jun 2012, Lei Guo wrote:<br><br><blockquote type="cite">We expected this question, and it was discussed at our weekly meeting.<br></blockquote><blockquote type="cite">Basically, if it comes up, we should stress that it IS normal that<br></blockquote><blockquote type="cite">different experiments will do similar yet complimentary measurements,<br></blockquote><blockquote type="cite">such as STAR and PHENIX, and CLAS12 and GLUEX (Meson spectroscopy,<br></blockquote><blockquote type="cite">e.g.). Gluex obviously has the advantage of acceptance, but CLAS12 has<br></blockquote><blockquote type="cite">the advantage of resolution and PID. We also have the advantage of<br></blockquote><blockquote type="cite">measuring the beam polarization on an event basis, while GLUEX beam<br></blockquote><blockquote type="cite">polarization is obtained from calculation.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">In any case, our physics goals are similar, and it should be desirable<br></blockquote><blockquote type="cite">that two experiment can cross check each other.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Lei<br></blockquote><blockquote type="cite">On Jun 14, 2012, at 3:50 PM, Carlos Salgado wrote:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><blockquote type="cite">Igor<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Yes, of course the question should go both ways.... just interested<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">in how we can answer it.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">(It seems that Gluex is not proposing a measure of omega?)<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">-Carlos<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">On Jun 14, 2012, at 9:54 AM, Igor Strakovsky wrote:<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Carlos,<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">How is about alternative question addressed to GluEx?<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Igor<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">On Thu, 14 Jun 2012 09:10:52 -0400 (EDT), Carlos Salgado <<a href="mailto:salgado@jlab.org">salgado@jlab.org</a><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">wrote:<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Lei<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">As you will know well (being a GluEx member), GluEx is sending a<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Cascade/Strange-hybrid proposal to PAC39.<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">How is the CLAS12/FWT compare with them? What can we do better?<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Perhaps PAC will be interested to know.<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">-Carlos<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">----- Original Message -----<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">From: "Lei Guo" <<a href="mailto:lguo@jlab.org">lguo@jlab.org</a>><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">To: "Johann Goetz" <<a href="mailto:jgoetz@ucla.edu">jgoetz@ucla.edu</a>><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Cc: "clas12 verystrange" <<a href="mailto:clas12_verystrange@jlab.org">clas12_verystrange@jlab.org</a>><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Sent: Monday, June 11, 2012 6:05:47 PM<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Subject: Re: [Clas12_verystrange] just some numbers to throw at ya<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">What about the moments for the accepted events?<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">On Jun 11, 2012, at 5:05 PM, Johann Goetz wrote:<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">distributions were certainly isotropic in the CM frame of the parent<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">particles.<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Do you mean the helicity frame of the Xi(1820) and Lambda? I'm<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">supposed to<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">still go to the w&m workshop. But I will meet you first in the<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">morning.<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Tomorrow we will try to weight the generated events with the help<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">of Dennis,<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">I guess?<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Lei<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">***These are for generated events***<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">I need to send these events through the fastmc to get the acceptance<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">equivalent.<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 1, 1) = 2.593e-04 + i 2.961e-04<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 3, 1) = 5.957e-04 + i 7.105e-04<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 3, 2) = -5.373e-05 + i 2.210e-05<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 3, 3) = 2.824e-06 + i -6.330e-07<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 5, 1) = 8.350e-04 + i 1.082e-03<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 5, 2) = -1.408e-04 + i 5.941e-05<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 5, 3) = 1.204e-05 + i -5.116e-06<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 5, 4) = 2.517e-06 + i 1.138e-05<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 0, 5, 5) = 6.033e-07 + i -6.525e-07<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 1, 1) = -1.067e-05 + i 7.996e-06<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 3, 1) = -8.773e-06 + i 1.105e-05<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 3, 2) = -5.633e-06 + i -4.329e-06<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 3, 3) = -1.048e-07 + i 3.548e-06<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 5, 1) = -6.181e-06 + i 1.555e-05<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 5, 2) = -9.076e-06 + i -3.540e-06<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 5, 3) = 2.206e-07 + i 9.737e-06<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 5, 4) = -2.169e-06 + i -1.148e-07<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">H (1, 1, 5, 5) = -2.438e-07 + i -2.848e-07<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">--<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Johann T. Goetz, PhD.<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><a href="mailto:jgoetz@ucla.edu">jgoetz@ucla.edu</a><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Nefkens Group, UCLA Dept. of Physics & Astronomy<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Hall-B, Jefferson Lab, Newport News, VA<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Office: 757-269-5465 (CEBAF Center F-335)<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Mobile: 757-768-9999<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">_______________________________________________<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Clas12_verystrange mailing list<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><a href="mailto:Clas12_verystrange@jlab.org">Clas12_verystrange@jlab.org</a><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><a href="https://mailman.jlab.org/mailman/listinfo/clas12_verystrange">https://mailman.jlab.org/mailman/listinfo/clas12_verystrange</a><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">_______________________________________________<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Clas12_verystrange mailing list<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><a href="mailto:Clas12_verystrange@jlab.org">Clas12_verystrange@jlab.org</a><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><a href="https://mailman.jlab.org/mailman/listinfo/clas12_verystrange">https://mailman.jlab.org/mailman/listinfo/clas12_verystrange</a><br></blockquote></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite">Clas12_verystrange mailing list<br></blockquote><blockquote type="cite"><a href="mailto:Clas12_verystrange@jlab.org">Clas12_verystrange@jlab.org</a><br></blockquote><blockquote type="cite"><a href="https://mailman.jlab.org/mailman/listinfo/clas12_verystrange">https://mailman.jlab.org/mailman/listinfo/clas12_verystrange</a><br></blockquote><blockquote type="cite"><br></blockquote>_______________________________________________<br>Clas12_verystrange mailing list<br><a href="mailto:Clas12_verystrange@jlab.org">Clas12_verystrange@jlab.org</a><br>https://mailman.jlab.org/mailman/listinfo/clas12_verystrange<br></div></blockquote></div><br></div></div></div></body></html>