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<a name="x_x_x_x__MailOriginal"></a>Jefferson Lab's Graduate Student and Post-Doc Association Wiki:</div>
<pre style="background-color: rgb(255, 255, 255);"><div style="direction: ltr; text-align: left; text-indent: 0px; line-height: 1.38; white-space: pre-wrap; margin: 0in 0in 8pt; font-family: Arial, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);" class="elementToProof"><a style="margin: 0px;" data-auth="NotApplicable" data-linkindex="0" data-ogsc="" title="https://gspda.jlab.org/wiki/index.php/Main_Page" class="x_x_x_x_x_x_x_OWAAutoLink" id="OWA340dd4df-4408-ac17-b666-cb0fcee77aaf" href="https://gspda.jlab.org/wiki/index.php/Main_Page">https://gspda.jlab.org/wiki/index.php/Main_Page</a>
This program is supported by the Initiatives Fund Program, a JSA commitment, to
support programs, initiatives, and activities that further the scientific outreach, promote
the science, education and technology of Jefferson Lab and benefit the Lab's extended
user community in ways that complement the Lab's basic and applied research missions.
Wednesday, October 15, 2025
***CC F326/327***
12:00 pm - 1:00 pm
"MOLLER data acquisition and analysis systems"
Paul King
Abstract:
In parity-violating electron scattering (PVES), experiments measure a small difference in the elastic scattering rate of longitudinally-polarized electrons when their spin direction is reversed. This arises from the interference between the electromagnetic and weak interactions. Experiments can use this sensitivity to investigate the strange-quark contributions to the nucleon form factors (G0 and HAPPEX), distributions of neutrons in the nucleus (PREX, PREX-II, and CREX), or test predictions of the Standard Model (Qweak and MOLLER). The physics asymmetry in the Hall A MOLLER experiment will be about 35 parts-per-billon. Measuring these small asymmetries requires data acquisition and analysis systems that are distinct from those used elsewhere at Jefferson Lab. This talk will discuss the challenges and techniques chosen for the MOLLER experiment.</div></pre>
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