Topic
particle physics
5 stories related to this topic, newest first.
New Scientistscience36 days ago
Laser-Held Silica Sphere Measures Single-Particle Pressure
A new device uses a 100-nanometre silica sphere suspended in laser light to detect pressure from individual particle collisions. Researchers tested the sensor in an ultra-high vacuum by introducing particles from three gases and recorded matching results with theoretical predicti…
Substrate placeholder — needs reviewscience74 days ago
Researchers Trace Origins of Short-Lived Particle to Support Vacuum Fluctuations as Source of Mass
Scientists have analyzed the origins of a short-lived particle known as a top quark. Their findings provide evidence that mass arises from fluctuations in the quantum vacuum. The study was reported by New Scientist.
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Substrate placeholder — needs reviewscience74 days ago
New Measurement of W Boson Mass Aligns with Standard Model of Particle Physics
Researchers have measured the mass of the W boson at 80.360 ± 0.008 GeV, consistent with predictions from the standard model. This result comes from data collected by the ATLAS detector at CERN's Large Hadron Collider. The finding contradicts a 2022 measurement from the Fermilab…
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Substrate placeholder — needs reviewscience75 days ago
Physicists Propose Exploding Primordial Black Holes Explain Matter-Antimatter Asymmetry
Researchers suggest that tiny primordial black holes formed shortly after the Big Bang exploded and produced shock waves that favored matter over antimatter in the early universe. These black holes, with masses around 1,000 kilograms, would have evaporated via Hawking radiation w…
Substrate placeholder — needs reviewscience75 days ago
Two Precise Experiments Confirm Earlier Measurement of Proton Radius
Two recent experiments have produced results consistent with a 2010 measurement of the proton's radius that initially diverged from prior values. The proton radius determines the size of atomic nuclei and influences fundamental physics calculations. These findings, reported by Ne…
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