#particle-physics

ATLAS has reported its first measurement of proton-oxygen collisions at the Large Hadron Collider, providing data intended to improve simulations of cosmic-ray showers in Earth’s atmosphere

A longstanding open problem in particle physics remains unresolved: whether neutrinos are distinct from their antiparticles or are instead Majorana particles that are effectively their own opposites

A new Universe Today feature revisits how Pavel Cherenkov turned a faint blue glow in irradiated water into one of physics’ most recognizable phenomena.

A new explainer revisits one of physics’ strangest asymmetries: the weak nuclear force only interacts with left-handed particles, a quirk that helps make radioactive decay, fusion, and stars possible.

A fresh retelling of Ettore Majorana's 1937 idea is drawing attention to one of modern physics' most persistent questions: whether neutrinos could be particles that are also their own antiparticles.

Two highly precise hydrogen experiments now agree with the smaller proton measurement that once shocked physics, strengthening the case that the particle’s radius is about 0.84 femtometres.

Researchers reported an AI approach inspired by the logic of Rubik’s Cube solving that can simplify particle physics equations, linking a familiar puzzle strategy to a difficult mathematical problem in high-energy theory

After years of anomalies and speculation, recent null results have pushed many physicists to conclude that the electron-volt sterile neutrino likely does not exist.

CERN scientists have transported antimatter by truck for the first time, a milestone that could enable more precise experiments into the asymmetry between matter and antimatter.

The 2025 Global Physics Photowalk winners offer a rare public look inside particle physics laboratories, turning detectors, cryostats, and experimental spaces into a visual story about discovery.

A new generation of deep underground neutrino detectors could soon capture the diffuse supernova background radiation — the accumulated neutrino glow of every stellar death that occurred before our solar system formed.

A detector on the floor of the Mediterranean Sea has recorded the most energetic neutrino ever observed, a ghost particle whose origin remains a profound mystery.

Deep canyons in the Andes serve as natural shields for detecting ultra-high-energy cosmic particles that could prove gravity is quantum.

US researchers at Fermilab have stored the first proton beams in a specialized accelerator, paving the way for next-generation particle colliders.

A series of experimental results from particle physics and cosmology are converging to challenge the Standard Model, potentially demanding an entirely new theory.