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#particlephysics

3 posts3 participants0 posts today

"After measuring the wobbles of 300 billion muons, the Muon g − 2 Collaboration has pinpointed with exquisite precision the internal magnetism of these subatomic particles. [...] In a somewhat surprising turn of events, the final results from the Muon g − 2 experiment line up with the most recent predictions, further validating the standard model of particle physics."

@startswithabang

physics.aps.org/articles/v18/1

Physics · Muon Experiment Calls It a WrapThe final results from the Muon g − 2 experiment agree with the latest predictions of the muon’s magnetic properties—letting down hopes that the particle would upset the standard model’s applecart.

A new candidate for dark matter – Could underground detectors detect traces of superheavy charged gravitinos?

The nature of dark matter remains unclear. A new paper proposes a new type of elementary particle, superheavy charged gravitinos, to explain dark matter. These differ radically from all previously proposed candidates.

A research team involving the @mpi_grav shows how new underground detectors could detect these particles based on their distinctive traces.

ℹ️ aei.mpg.de/1275865/a-new-candi

📄 link.springer.com/article/10.1

Mary K Gaillard, Who Broke a Ceiling in Subatomic Research, Dies at 86

Overcoming discrimination in a mostly male preserve, she did groundbreaking work that showed experimentalist physicists where and how to look for new particles.

By Katrina Miller writing for The New York Times
nytimes.com/2025/07/31/science

The New York Times · Mary Gaillard, Who Broke a Ceiling in Subatomic Research, Dies at 86By Katrina Miller