<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;"><font face="Times New Roman">Dear Colleagues,</font><div><font face="Times New Roman"><br></font></div><div><font face="Times New Roman">I have made some changes base on the suggestions of Igor and Tsuneo, the new version is as follows. </font></div><div><font face="Times New Roman"><br></font></div><div><div style="margin: 0px;"><font face="Times New Roman">-title-</font></div><div style="margin: 0px;"><font face="Times New Roman">Polarization observables for double charged pion photo-production with polarized HD target</font></div><div style="margin: 0px;"><font face="Times New Roman">-/title-</font></div><div style="margin: 0px; min-height: 16px;"><font face="Times New Roman"><br></font></div><div style="margin: 0px;"><font face="Times New Roman">-abstract-</font></div><div style="margin: 0px;"><font face="Times New Roman">A complete characterization of the spectrum of N* and Delta resonances for nucleon is essential to understand the internal structure of the nucleon. However, both the recent Lattice QCD calculation and the conventional Constitute Quark Model have predicted more resonances than experimentally observed. In order to identify the missing resonances using partial wave analysis, polarization observables are needed to be measured in experiment. The work presented in this talk is to analyze the polarization observables for double charged pion photo-production with polarized HD target(G14 experiment in Jlab). With circularly polarized beam, and longitudinal polarized target(one free proton, one bound proton and one bound neutron), three polarization observables in the double pion photo-production are measured. The proton data will be compared with an earlier Jlab experiment G9, and the new neutron data will also be presented.</font></div><div style="margin: 0px;"><font face="Times New Roman">-/abstract-</font></div><div style="margin: 0px;"><font face="Times New Roman"><br></font></div><div style="margin: 0px;"><font face="Times New Roman">Cheers,</font></div><div style="margin: 0px;"><font face="Times New Roman">Peng</font></div><div><div>On Jun 27, 2014, at 12:46 PM, Peng Peng <<a href="mailto:pp9e@virginia.edu">pp9e@virginia.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;">Dear Colleagues,<div><br></div><div>I would like to give a contributed talk in the DNP meeting this Fall. Following is the abstract, your comments will be greatly appreciated.</div><div><br></div><div><div style="margin: 0px; font-family: 'Times New Roman';">-title-</div><div style="margin: 0px; font-family: 'Times New Roman';"> Polarization observables for double charged pion photo-production with polarized HD target</div><div style="margin: 0px; font-family: 'Times New Roman';">-/title-</div><div style="margin: 0px; font-family: 'Times New Roman'; min-height: 11px;"><br></div><div style="margin: 0px; font-family: Arial;">-abstract-</div><div style="margin: 0px; font-family: 'Times New Roman';"> A complete characterization of spectrum of N* and Delta resonances for nucleon is essential to understand the internal structure of the nucleon. However both the recent Lattice QCD and the conventional Constitute Quark Model have predicted more resonances than experimentally observed. Most of these missing resonances lie above 1.8 GeV with broad line-shapes and they overlap with their neighboring states. To distinguish the overlapping states requires efforts from both experimentalists and theorists. On the experiment side, measuring the polarization observables for all the decay channels will help to remove the ambiguities in deterring the multipoles in partial wave analysis. On the theory side, using more realistic pion mass in Lattice QCD calculation and adding the new measured data in the phenomenological models will provide us a more accurate model. The joint efforts from both the theory and the experiment will deepen our understanding in the confinement region of QCD. The work presented in this talk is to analyze the polarization observables for double charged pion photo-production with polarized HD target. This experiment with the name G14 was conducted in Hall B in Jefferson Lab from November 2011 to May 2012. Both circularly and linearly polarized beam with high polarization were used in G14, and the polarized HD has both longitudinal polarized protons and neutrons. The center of mass energy ranges from 1.4GeV to 2.2GeV for circularly polarized beam, and ranges from 1.6GeV to 2.2GeV for linearly polarized beam. Many final states channels were produced in this experiment, such as single pion, double pion and Kaon Lambda, etc. This talk will present the three polarization observables in the double pion photo-production with both longitudinal polarized proton and neutron target and circularly polarized beam. An earlier experiment in Hall B JLab, G9a, has given the results for this process with polarized proton target. The new results from G14 will be compared with the G9 results for proton target, and the new neutron data will also be presented. </div><div style="margin: 0px; font-family: 'Times New Roman'; min-height: 11px;"><br></div><div style="margin: 0px; font-family: Arial;">-/abstract-</div><div><br></div><div>Cheers,</div><div>Peng</div><div><br></div><div><div>On Jun 27, 2014, at 12:00 PM, <a href="mailto:g14_run-request@jlab.org">g14_run-request@jlab.org</a> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Send G14_run mailing list submissions to<br><span class="Apple-tab-span" style="white-space:pre"> </span><a href="mailto:g14_run@jlab.org">g14_run@jlab.org</a><br><br>To subscribe or unsubscribe via the World Wide Web, visit<br><span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://mailman.jlab.org/mailman/listinfo/g14_run">https://mailman.jlab.org/mailman/listinfo/g14_run</a><br>or, via email, send a message with subject or body 'help' to<br><span class="Apple-tab-span" style="white-space:pre"> </span>g14_run-request@jlab.org<br><br>You can reach the person managing the list at<br><span class="Apple-tab-span" style="white-space:pre"> </span>g14_run-owner@jlab.org<br><br>When replying, please edit your Subject line so it is more specific<br>than "Re: Contents of G14_run digest..."<br><br><br>Today's Topics:<br><br> 1. g14 group meeting on 27June2014, 9:00am (Charles Hanretty)<br><br><br>----------------------------------------------------------------------<br><br>Message: 1<br>Date: Thu, 26 Jun 2014 12:06:06 -0400<br>From: Charles Hanretty <charleshanretty@gmail.com><br>Subject: [G14_run] g14 group meeting on 27June2014, 9:00am<br>To: g14_run@jlab.org<br>Message-ID:<br><span class="Apple-tab-span" style="white-space:pre"> </span><CAL9AGi9S=LdHYioiqZ-_UhwA86=iDRxJWKfqTCOG=XR0v25dSQ@mail.gmail.com><br>Content-Type: text/plain; charset="utf-8"<br><br>Dear Collaborators,<br><br>Our next group meeting is scheduled for tomorrow, Friday, June 27th,<br>at 9:00am in room A-110.<br><br> (instructions for off-site participants below)<br><br>Agenda:<br>* pass1 cooking<br>* ongoing analyses<br>* other items<br><br>(see http://clasweb.jlab.org/rungroups/g14/wiki/index.php/June_27,_2014 )<br><br>Please update the agenda as required.<br><br>==========================================================<br>Instructions for offsite participants:<br>* Dial Toll-Free Number: 866-740-1260 (U.S.& Canada)<br> o International participants dial: Toll Number: 303-248-0285<br> o Or International Toll-Free Number:http://www.readytalk.com/intl<br>* Enter 7-digit access code, 2877656 followed by #<br>==========================================================<br><br><br>-- <br>Cheers,<br>Charles Hanretty<br>-------------- next part --------------<br>An HTML attachment was scrubbed...<br>URL: https://mailman.jlab.org/pipermail/g14_run/attachments/20140626/c1af7ca1/attachment-0001.html <br><br>------------------------------<br><br>_______________________________________________<br>G14_run mailing list<br>G14_run@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/g14_run<br><br><br>End of G14_run Digest, Vol 33, Issue 9<br>**************************************<br></blockquote></div><br></div></div></blockquote></div><br></div></body></html>