Simone Bacchio, Cyprus Inst., [HET Seminar], Precision Nucleon Structure from Lattice QCD at the Physical Point

Thursday 10 Apr 2025, 11:00 → 12:00 US/Eastern

CFNS Library (https://bnl.zoomgov.com/j/1605506805?pwd=AA9rwL4hM5AwG2b0zEwDdXjzhvJjSz.1)

Understanding the internal structure of the nucleon from first principles is a central goal of modern hadronic physics. Lattice QCD provides a non-perturbative framework to compute key nucleon observables, including axial and electromagnetic form factors, which are essential for describing nucleon structure and interactions. In this talk, I will present recent high-precision results from the Extended Twisted Mass Collaboration, obtained directly at the physical pion mass. A key focus will be on the challenges inherent in these calculations, particularly the contamination from excited states and the significant computational costs associated with achieving precision. I will discuss strategies employed to mitigate these issues, including advanced analysis techniques and improvements in the statistical precision of matrix element extractions.