Coloquio CAPA. Zoltan Fodor (Distinguished Professor of Physics Eberly College of Science. Pennsylvania State University) , “The Magnetic Moment of the Muon Puzzle: New Physics or the Best Proof of Quantum Field Theory”

 "Coloquio CAPA"
Título: The Magnetic Moment of the Muon Puzzle: New Physics or the Best
Proof of Quantum Field Theory

Conferenciante:
Zoltan Fodor
(Distinguished Professor of Physics
Eberly College of Science.
Pennsylvania State University)

Abstract: In the last two decades or so there have been stronger and stronger disagreements between direct measurements of the anomalous magnetic
moment of the muon and the standard-model prediction. Such a large discrepancy would be a signal for an interaction or particle not present in the standard model.
However, already in 2020 a lattice QCD calculation suggested a "no-tension" scenario. I report on our new lattice QCD calculation, which reduced the uncertainty of
our 2020 result by about 40%. The agreement between the measured value of the anomalous magnetic moment of the muon and its theoretical predictions is an
extremely impressive prove of the validity of quantum field theory --with three very different calculational frameworks for QED, EW and QCD-- up to 11 digits.

Fecha: jueves, 12 de febrero de 2026
Hora:   12:10 horas
Lugar: seminario de Física Teórica