Standard Model

Fermilab’s Muon g-2 collaboration has given its final word on the magnetic moment of the muon. Though the experimental measurement will likely now remain stable for several years, theorists expect to make rapid progress to reduce uncertainties and resolve tensions underlying the SM value.

The 1980s and 1990s were a unique time for particle physics in the aftermath of the Standard Model in which Fermilab provided many contributions. The upcoming International Symposium on the History of Particle Physics at CERN will include research from Fermilab’s Tevatron.

Fermilab released the third and final measurement of the muon magnetic anomaly. The Muon g-2 collaboration describes the result in the recently published paper in the Physical Review Letters.

Fermilab’s Muon g-2 collaboration announced the final result on the magnetic moment of the muon. The new measurement agrees closely with a significantly revised Standard Model prediction.

On July 21, 2000, the DONUT collaboration at Fermilab announced the first direct evidence for tau neutrinos. The particles remain elusive to this day, but physicists continue to seek new ways of studying them.

There are an array of experiments, like the Muon g-2 experiment at Fermilab, that are looking to see if an elusive fifth force might be at work.

Experiments that uncover the possibility of new forces, like the Muon g-2 experiment at Fermilab, might help researchers examine the trajectories of well-documented asteroids in hopes of detecting anomalies that could provide evidence of such a fifth force.

The deviant behavior of a tiny particle called the muon might point to undiscovered forms of matter and energy in the universe. Or it might not.

To address the lingering questions of the Standard Model of Physics, particle physicists have been planning the next-generation colliders. Fermilab could be the site of a future muon collider, but future colliders will be the efforts of the international physics community.

In the quest to understand the fundamental forces that govern our universe, the Standard Model of particle physics has long stood as the cornerstone. Recent experimental discrepancies like those from Fermilab’s Muon g-2 experiment, have stirred the physics community, suggesting that the muon’s behavior under magnetic fields might not fully align with Standard Model prediction.