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Quark

Quarks are one of the two basic constituents of matter in the Standard Model of particle physics. (The others are leptons.) Antiparticles of quarks are called antiquarks. Quarks and antiquarks are the only fundamental particles that interact through all four of the fundamental forces. An important property of quarks is called confinement, which states that individual quarks are not seen because they are always confined inside subatomic particles called hadrons (e.g., protons and neutrons); an exception is the top quark, which decays so quickly that it does not hadronize, and can therefore be observed more directly via its decay products. Confinement began as an experimental observation, and is expected to follow from the modern theory of strong interactions, called quantum chromodynamics.

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December 5, 2025

Kyushu University scientists have achieved a major leap in fuel cell technology by enabling efficient proton transport at just 300°C. Their scandium-doped oxide materials create a wide, soft pathway that lets protons move rapidly without clogging ...
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Researchers have discovered a new way to grow graphene that deliberately adds structural defects to enhance its usefulness in electronics, sensors, catalysts, and more. Using a specially shaped molecule called azupyrene, scientists can produce ...
A UC Irvine team uncovered a never-before-seen quantum phase formed when electrons and holes pair up and spin in unison, creating a glowing, liquid-like state of matter. By blasting a custom-made material with enormous magnetic fields, the ...
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Europe is investing in a coordinated effort to develop high-power optical vortex technologies and train new specialists in the field. The HiPOVor network unites academia and industry to advance applications ranging from material processing to ...
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New research shows that light’s magnetic field is far more influential than scientists once believed. The team found that this magnetic component significantly affects how light rotates as it passes through certain materials. Their work challenges ...

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