Muon mystery resolved by precise new calculation

May 19, 2026

Iniulat ng AI

An international team has shown that a long-standing discrepancy in the muon's magnetic behavior stemmed from earlier calculation limits rather than unknown physics. The work supports the Standard Model and removes one major hint of a possible fifth force of nature.

Researchers led by Penn State physicist Zoltan Fodor spent more than a decade using lattice quantum chromodynamics on supercomputers to recalculate the muon's anomalous magnetic moment. Their hybrid method combined theoretical simulations at short and medium distances with experimental data at larger scales, achieving agreement between theory and experiment within less than half a standard deviation.

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LHCb experiment finds hints of physics beyond standard model

Researchers at CERN’s Large Hadron Collider have observed particle decays that deviate from predictions of the Standard Model. The findings come from the LHCb experiment and show a four-standard-deviation tension with theory. If confirmed, the results could point to undiscovered particles or forces.

Physicists observe evidence of exotic η′-mesic nucleus

April 26, 2026 Iniulat ng AI

An international team of researchers has detected signs of a rare η′-mesic nucleus, a fleeting particle trapped inside an atomic nucleus. This exotic state, observed in a high-precision experiment, suggests the η′ meson's mass decreases in dense nuclear matter. The finding could shed light on how matter acquires mass through the structure of space's vacuum.

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Physicists link extreme neutrino to exploding primordial black hole

Physicists at the University of Massachusetts Amherst propose that a record-breaking neutrino detected in 2023 originated from the explosion of a primordial black hole carrying a 'dark charge.' The particle's energy, 100,000 times greater than that produced by the Large Hadron Collider, puzzled scientists since only the KM3NeT experiment recorded it. Their model, published in Physical Review Letters, could also hint at the nature of dark matter.

Ultraheavy nuclei may explain Amaterasu particle origin

June 09, 2026 Iniulat ng AI

New research suggests the Amaterasu particle, one of the most energetic cosmic rays detected, could be an ultraheavy atomic nucleus rather than a proton. The findings, from scientists at Penn State, were published in Physical Review Letters. They indicate such nuclei could retain extreme energy over vast distances in space.

May 26, 2026 03:32

Muon mystery resolved by precise new calculation

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LHCb experiment finds hints of physics beyond standard model

Physicists observe evidence of exotic η′-mesic nucleus

Philosopher proposes rethinking particle categories in Standard Model

Scientists observe atoms spinning backward in quantum experiment

Scientists observe wave-like behavior in positronium for first time

Physicists link extreme neutrino to exploding primordial black hole

Ultraheavy nuclei may explain Amaterasu particle origin

Supercomputer simulations explain formation of cosmic magnetic fields

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