<html>
<head>
</head>
<body>
<font face="Times New Roman" size="3">
<div> </div>
<div> </div>
<div> </div>
<div align="center"><font size="6" color="navy"><b>Old Dominion University</b></font></div>
<div align="center"><font size="6" color="navy"><b>Department of Physics<br>
<br>
</b><font color="#548DD4"><b>Spring Colloquium</b></font></font></div>
<div align="center"><font size="5" color="navy"><br>
<font size="6">Tuesday, March 18, 2014<br>
<br>
</font><font color="#548DD4"><b>"The Lifetime of the Neutral Pion"</b></font></font></div>
<div align="center"><font size="6" color="#244061"> </font></div>
<div align="center"><font size="6" color="#244061"><b>Dr. Ilya Larin<br>
ITEP, Moscow, Russia</b><font size="5" color="#0070C0"> </font></font></div>
<div> </div>
<div align="center"> </div>
<div align="left"><font size="4">A precision measurement of the neutral pion lifetime via the Primakoff effect was carried out by the PrimEx experiment at Jefferson Lab using the Hall B photon tagger and
a high-resolution electromagnetic calorimeter. The neutral pion lifetime was extracted from the measured cross sections using theoretical models. The result of this fundamental quantity is 2.5 times more precise than the present world average of all measurements as
reported in the Particle Data Book and consistent with current theoretical predictions.</font></div>
<div align="center"> </div>
<div align="center"> </div>
<div align="center"> </div>
<div align="center"> </div>
<div align="center"><font size="4">Presentation: OCNPS 200 @ 3:00 pm</font></div>
<div align="center"><font size="4">Refreshments: OCNPS 200 Atrium @ 2:30 pm</font></div>
<div align="center"><font size="5" color="#0070C0"><b>All interested persons are cordially invited to attend.</b></font></div>
<div align="center"><font size="5" color="#0070C0"> </font></div>
<div> </div>
<div> </div>
</font>
</body>
</html>