[Theory-seminars] Theory Seminar TODAY

[Pia Jones Petrak]

On 07-09-2025 15:46, Joseph Karpie via Theory-seminars wrote:
> Hey Everyone,
>
> On Monday we will be having a remote theory seminar at 1pm by Zack 
> Hall (LBNL). Please join us in L102 or on Zoom 
> https://jlab-org.zoomgov.com/j/1615374217?pwd=nXXAU1vhkE6GamxHmTXx9py6xOaF1R.1
>
> Title: A sub-percent Determination of the Nucleon Axial Coupling with 
> Lattice Quantum Chromodynamics
>
> 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.
>
> Best,
> Adam, Joe, and Pia
>
>
> --
> Joe Karpie
> Pronouns: He/His/Him
> Postdoctoral Fellow
> Theoretical and Computational Physics Center
> Jefferson Lab
>
>
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-- 
Pia Leonie Jones Petrak
Postdoctoral Fellow
Theoretical and Computational Physics Center
Jefferson Lab
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