https://zeus.phys.uconn.edu/wiki/index.php?action=history&feed=atom&title=Mentor_Connection_2007 2026-04-04T15:33:46Z Revision history for this page on the wiki MediaWiki 1.35.7 https://zeus.phys.uconn.edu/wiki/index.php?title=Mentor_Connection_2007&diff=2381&oldid=prev 2007-08-12T01:56:57Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 01:56, 12 August 2007</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>UConn Mentor Connection 2007 brought Matt Harrigan and Lee Hyun Seok to Storrs to work with Prof. Richard Jones in the Nuclear Physics Laboratory.  For their project, they chose to study how to measure the polarization of high-energy electrons using a laser beam.  This technique will be used by the Qweak experiment at Jefferson Lab, which scatters polarized electrons from a proton target in order to measure the ''weak charge'' (Qweak) of the proton. <del class="diffchange diffchange-inline"> </del>As a part of their project, Matt and Lee studied how the weak force is described by the exchange of heavy bosons called W and Z particles, and how the weak nuclear force distinguishes between quarks and leptons of different helicity in a surprising physical effect called parity violation.  <del class="diffchange diffchange-inline">They then studied </del>how Compton scattering from a polarized laser beam <del class="diffchange diffchange-inline">can </del>be used to measure the degree of polarization of the high-energy electron beam<del class="diffchange diffchange-inline">, which directly determines how much parity violation will actually be observed in a real experiment</del>.  At the <del class="diffchange diffchange-inline">end of </del>the Mentor Connection experience, they presented what they  learned in the form of [http://zeus.phys.uconn.edu/~jonesrt/students/MentorConnection/2007/Lee_Hyun_Seok_poster.ppt  a poster] and [http://zeus.phys.uconn.edu/~jonesrt/students/MentorConnection/2007/Matt_Harrigan_talk.ppt an oral presentation].</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">[[Image:comptonscattering.png|thumb|right|Compton Scattering]]</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>UConn Mentor Connection 2007 brought Matt Harrigan and Lee Hyun Seok to Storrs to work with Prof. Richard Jones in the Nuclear Physics Laboratory.  For their project, they chose to study how to measure the polarization of high-energy electrons using a laser beam <ins class="diffchange diffchange-inline">('''Compton polarimetry''')</ins>.  This technique will be used by the Qweak experiment at Jefferson Lab, which scatters polarized electrons from a proton target in order to measure the ''weak charge'' (Qweak) of the proton.</div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">[[Image:comptongraph.png|thumb|right|Energy of Compton-scattered photons in relation to the Compton scattering angle]]</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>As a part of their project, Matt and Lee studied how the weak force is described by the exchange of heavy bosons called W and Z particles, and how the weak nuclear force distinguishes between quarks and leptons of different helicity in a surprising physical effect called parity violation.  <ins class="diffchange diffchange-inline">As an introductory problem, they came up with a function to determine the energies of scattered photons in relation to the scattering angle. The graph of this function can be seen to the right. Their second task was to understand the setup of the device, which would include four concave mirrors to focus and direct the laser beam and a chicane so the scattered particles could be detected. The third problem Matt and Lee set out to solve was the effect of a mirrors edge on the reflected laser beam. Matt wrote a Java program designed to simulate a wave using Huygens' principle.</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">In the end, the two students had a firm understanding of </ins>how Compton scattering from a polarized laser beam <ins class="diffchange diffchange-inline">could </ins>be used to measure the degree of polarization of the high-energy electron beam.  At the <ins class="diffchange diffchange-inline">research conference that concluded </ins>the <ins class="diffchange diffchange-inline">three week </ins>Mentor Connection experience, they presented what they  learned in the form of [http://zeus.phys.uconn.edu/~jonesrt/students/MentorConnection/2007/Lee_Hyun_Seok_poster.ppt  a poster] and [http://zeus.phys.uconn.edu/~jonesrt/students/MentorConnection/2007/Matt_Harrigan_talk.ppt an oral presentation].</div></td></tr> </table>

MattHarrigan https://zeus.phys.uconn.edu/wiki/index.php?title=Mentor_Connection_2007&diff=2278&oldid=prev 2007-08-10T01:22:27Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 01:22, 10 August 2007</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>UConn Mentor Connection 2007 brought Matt Harrigan and Lee <del class="diffchange diffchange-inline">Hyuk Seon</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>UConn Mentor Connection 2007 brought Matt Harrigan and Lee <ins class="diffchange diffchange-inline">Hyun Seok to Storrs to work with Prof. Richard Jones in the Nuclear Physics Laboratory.  For their project, they chose to study how to measure the polarization of high-energy electrons using a laser beam.  This technique will be used by the Qweak experiment at Jefferson Lab, which scatters polarized electrons from a proton target in order to measure the ''weak charge'' (Qweak) of the proton.  As a part of their project, Matt and Lee studied how the weak force is described by the exchange of heavy bosons called W and Z particles, and how the weak nuclear force distinguishes between quarks and leptons of different helicity in a surprising physical effect called parity violation.  They then studied how Compton scattering from a polarized laser beam can be used to measure the degree of polarization of the high-energy electron beam, which directly determines how much parity violation will actually be observed in a real experiment.  At the end of the Mentor Connection experience, they presented what they  learned in the form of [http://zeus.phys.uconn.edu/~jonesrt/students/MentorConnection/2007/Lee_Hyun_Seok_poster.ppt  a poster] and [http://zeus.phys.uconn.edu/~jonesrt/students/MentorConnection/2007/Matt_Harrigan_talk.ppt an oral presentation].</ins></div></td></tr> </table>

Jonesrt https://zeus.phys.uconn.edu/wiki/index.php?title=Mentor_Connection_2007&diff=2277&oldid=prev 2007-08-10T01:10:02Z

<p></p> <p><b>New page</b></p><div>UConn Mentor Connection 2007 brought Matt Harrigan and Lee Hyuk Seon</div>

Jonesrt