Particle phenomena, as a research area, encompasses the theoretical and experimental investigation of processes, interactions, and emergent behaviors involving elementary and composite particles, primarily within high-energy and nuclear physics. It focuses on quantifying scattering amplitudes, decay channels, production cross-sections, and correlation patterns governed by the Standard Model and its proposed extensions. Research in particle phenomena typically addresses gauge interactions, symmetry breaking, confinement, hadronization, and collective effects in many-body systems such as quark–gluon plasma. The field integrates accelerator-based experiments, detector technology, and advanced computational methods to test fundamental symmetries, probe new physics scales, and refine effective field theories describing particle interactions.
A new LHCb analysis confirms a previously observed tension with the Standard Model, but more data and improved theoretical calculations are needed to determine whether new physics is at play.
General Physics
Sep 24, 2025
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The ATLAS collaboration finds evidence of Higgs-boson decays to muons and improves sensitivity to Higgs-boson decays to a Z boson and a photon.
General Physics
Jul 11, 2025
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Sharing disappointing results with a world of researchers working to find what they hope will be the "discovery of the century" isn't an easy task, but that is what Penn State theoretical physicist Zoltan Fodor and his international ...
General Physics
Jun 12, 2025
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Cosmic rays are high-energy particles from outer space that strike Earth's atmosphere, generating showers of secondary particles, such as muons, that can reach the planet's surface. In recent years, ground-based experiments ...
General Physics
Jun 2, 2025
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The CMS collaboration at CERN has observed an unexpected feature in data produced by the Large Hadron Collider (LHC), which could point to the existence of the smallest composite particle yet observed. The result, reported ...
General Physics
Apr 3, 2025
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Does the proton decay? While this was a famous prediction of Grand Unified Theories (GUTS) developed in the 1970s and 1980s, experimentalists have ruled it out—or rather, put lower limits on its mean lifetime of about 1034 ...
Researchers have been working for decades to understand the architecture of the subatomic world. One of the knottier questions has been where the proton gets its intrinsic angular momentum, otherwise referred to as its spin.
General Physics
Feb 12, 2025
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Researchers at MIT recently published the first results of an experiment aimed at searching for axion dark matter by probing the axion-induced birefringence of electromagnetic waves. While these findings, published in Physical ...
The world's largest and most powerful particle accelerator may be producing the world's tiniest droplets of liquid, right under scientists' noses. Researchers are digging into this subatomic enigma.
General Physics
Aug 22, 2024
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Although our universe may seem stable, having existed for a whopping 13.7 billion years, several experiments suggest that it is at risk—walking on the edge of a very dangerous cliff. And it's all down to the instability of ...
General Physics
Aug 5, 2024
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