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Hey Everyone,</div>
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On Monday we will be having a remote theory seminar at 1pm by Zack Hall (LBNL). Please join us in L102 or on Zoom
<a class="OWAAutoLink" id="LPlnk440309" href="https://jlab-org.zoomgov.com/j/1615374217?pwd=nXXAU1vhkE6GamxHmTXx9py6xOaF1R.1">
https://jlab-org.zoomgov.com/j/1615374217?pwd=nXXAU1vhkE6GamxHmTXx9py6xOaF1R.1</a></div>
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Title: A sub-percent Determination of the Nucleon Axial Coupling with Lattice Quantum Chromodynamics</div>
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Abstract: The nucleon axial coupling, gA, plays a critical role in beta decay and determining the free neutron lifetime, along with additional nuclear processes of interest. In our work we utilize lattice quantum chromodynamics (LQCD) as a non-perturbative
method to determine the axial coupling from Standard Model QCD interactions between quarks and gluons. As lattice calculations of gA continue to push the boundaries of precision, it is necessary to quantify and control all sources of systematic errors (e.g.
excited-state contamination and finite-volume effects) associated with this framework. In this talk I will outline our approach for the first lattice determination of the axial coupling at the sub-percent level and discuss gA in the context of low-energy precision
tests of the Standard Model.</div>
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Best,<br>
Adam, Joe, and Pia</div>
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<span style="background-color: rgb(255, 255, 255);">--</span></div>
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Joe Karpie</div>
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Pronouns: He/His/Him</div>
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Postdoctoral Fellow</div>
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Theoretical and Computational Physics Center</div>
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Jefferson Lab</div>
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