<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><p style="text-align: center; border: medium none; padding: 0in; margin: 0px;" data-mce-style="text-align: center; padding: 0in; margin: 0px;"><strong><span style="font-size: 48.0pt; line-height: 115%; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 48.0pt; line-height: 115%; font-family: 'Times New Roman',serif;">Physics Seminar</span></strong></p><p style="margin: 0px; text-align: center; line-height: normal;" data-mce-style="margin: 0px; text-align: center; line-height: normal;"><strong><span style="font-size: 22.0pt; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 22.0pt; font-family: 'Times New Roman',serif;">Miha Mihovilovič</span></strong></p><p style="margin: 0px; text-align: center; line-height: normal;" data-mce-style="margin: 0px; text-align: center; line-height: normal;"><strong><span style="font-size: 16.0pt; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 16.0pt; font-family: 'Times New Roman',serif;">Institut für Kernphysik, Johannes Gutenberg-Universität Mainz </span></strong></p><p style="margin: 0px; text-align: center; line-height: normal;" data-mce-style="margin: 0px; text-align: center; line-height: normal;"><strong><span style="font-size: 16.0pt; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 16.0pt; font-family: 'Times New Roman',serif;">Jožef Stefan Institute, Ljubljana</span></strong></p><p style="margin: 0px; text-align: center; line-height: normal;" data-mce-style="margin: 0px; text-align: center; line-height: normal;"><strong><span style="font-size: 16.0pt; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 16.0pt; font-family: 'Times New Roman',serif;"> </span></strong></p><p style="margin: 0px; text-align: center; line-height: normal;" data-mce-style="margin: 0px; text-align: center; line-height: normal;"><strong><em><span style="font-size: 16.0pt; font-family: CMBX12;" data-mce-style="font-size: 16.0pt; font-family: CMBX12;">Investigating proton elastic form-factors with initial-state radiation</span></em></strong></p><p style="margin: 0px; text-align: center; line-height: normal;" data-mce-style="margin: 0px; text-align: center; line-height: normal;"><strong><em><span style="font-size: 16.0pt; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 16.0pt; font-family: 'Times New Roman',serif;"> </span></em></strong></p><p style="margin: 0px; text-align: center; line-height: normal;" data-mce-style="margin: 0px; text-align: center; line-height: normal;"><strong><span style="font-size: 16.0pt; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 16.0pt; font-family: 'Times New Roman',serif;">Abstract:</span></strong></p><p style="margin: 0px; text-align: center; line-height: normal;" data-mce-style="margin: 0px; text-align: center; line-height: normal;"><strong><span style="font-size: 16.0pt; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 16.0pt; font-family: 'Times New Roman',serif;"> </span></strong></p><p style="margin: 0px; line-height: normal;" data-mce-style="margin: 0px; line-height: normal;"><em><span style="font-size: 14.0pt; font-family: CMR12;" data-mce-style="font-size: 14.0pt; font-family: CMR12;">The discrepancy between the proton charge radius extracted from muonic hydrogen Lamb shift measurements and from elastic scattering experiments submits all existing measurements to scrutiny and questions our understanding of QED. One of the new experiments devised to provide new insight into the problem is the Initial-State Radiation experiment at MAMI, aimed at measuring the proton form-factors at very low momentum transfers. The features of this experiment and its main challenges and sensitivities will be discussed, together with the prospects for further measurements with even higher precision at A1 and MESA.</span></em></p><p style="margin: 0px;" data-mce-style="margin: 0px;"> </p><p style="text-align: center; margin: 0px;" data-mce-style="text-align: center; margin: 0px;"><strong><span style="font-size: 18.0pt; line-height: 115%; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 18.0pt; line-height: 115%; font-family: 'Times New Roman',serif;">Friday, March 24, 2017</span></strong></p><p style="text-align: center; margin: 0px;" data-mce-style="text-align: center; margin: 0px;"><strong><span style="font-size: 18.0pt; line-height: 115%; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 18.0pt; line-height: 115%; font-family: 'Times New Roman',serif;">11:00 am</span></strong></p><p style="text-align: center; margin: 0px;" data-mce-style="text-align: center; margin: 0px;"><strong><span style="font-size: 18.0pt; line-height: 115%; font-family: 'Times New Roman',serif;" data-mce-style="font-size: 18.0pt; line-height: 115%; font-family: 'Times New Roman',serif;">CEBAF Auditorium</span></strong></p><p style="margin: 0px;" data-mce-style="margin: 0px;"> </p></div><div><br></div><div data-marker="__SIG_POST__">-- <br></div><div>Stephanie Tysor<br>Hall A Administrative Assistant<br>Thomas Jefferson National Accelerator Facility<br>(office)757-269-6005 (fax)757-269-5235</div></div></body></html>