3 mysteries of the universe — and a new force that might explain them | Alex Keshavarzi
Mar 11, 2024
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In this captivating discussion, particle physicist Alex Keshavarzi, known for his work on the Muon g-2 experiment, reveals how new findings could reshape our understanding of the universe. He dives into cosmic mysteries like dark energy and dark matter, and the intriguing behavior of muons in magnetic fields. Keshavarzi highlights the potential discovery of a new particle or force, showcasing how this groundbreaking research may unlock the secrets of the cosmos and push the boundaries of current physics.
Dark energy, comprising 74% of the universe, drives its accelerating expansion, yet its nature remains unknown.
Muon G-2 Experiment at Fermilab reveals discrepancies hinting at new particles or forces beyond the standard model.
Deep dives
Mystery of Dark Energy
About 74% of the universe is composed of dark energy, a mysterious force causing the universe to expand at an accelerating rate. Scientists lack an understanding of what dark energy truly is, highlighting a significant gap in our knowledge of the universe.
Enigma of Dark Matter
Dark matter makes up 85% of all matter in the universe, yet it remains unseen and unidentified. This elusive substance comprises 21% of the energy content of the universe, posing a major unresolved mystery in astrophysics.
Muon G-2 Experiment and New Physics
The Muon G-2 Experiment at Fermilab discovered that muons wobble faster than predicted by the standard model of particle physics. This discrepancy suggests the presence of new particles or forces beyond the standard model. The experiment's findings offer a potential gateway to unraveling the mysteries surrounding dark energy, dark matter, and the matter-antimatter asymmetry in the universe.
We're still in the dark about what 95 percent of our universe is made of — and the standard model for understanding particle physics has hit a limit. What's the next step forward? Particle physicist Alex Keshavarzi digs into the first results of the Muon g-2 experiment at Fermilab in Chicago, which found compelling evidence of new particles or forces existing in our universe — a finding that could act as a window into the subatomic world and deepen our understanding of the fabric of reality.