In particle collider experiments, elementary particle interactions with large momentum transfer produce quarks and gluons (known as partons) whose evolution is governed by the strong force, as described by the theory of quantum chromodynamics. These partons subsequently emit further partons in a process that can be described as a parton …
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Physicists from the Compact Muon Solenoid (CMS) Collaboration at CERN’s Large Hadron Collider (LHC) have observed three J/ψ particles emerging from a single collision between two protons. A proton-proton collision event with six muons (red lines) produced in the decays of three J/ψ particles. Image credit: CMS / CERN. The …
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An international team of researchers led by the University of Georgia has documented ultraviolet biofluorescence in live southeastern pocket gophers (Geomys pinetis) and in museum specimens of four additional gopher species. Southeastern pocket gophers (Geomys pinetis) are biofluorescent, giving off a colored glow when illuminated with UV light. Image credit: …
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Physicists from the ATLAS Collaboration at CERN’s Large Hadron Collider (LHC) have observed a process called WWW production: the simultaneous creation of three massive W bosons in high-energy proton-proton collisions. Display of a candidate WWW→ 3 leptons + neutrinos event; the event is identified by its decay to a muon …
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Hurricanes in the Earth’s low atmosphere are well known; however, disturbances resembling hurricanes had never before been detected in the upper atmosphere. An artist’s impression of a space hurricane. Image credit: Qing-He Zhang, Shandong University. “Until now, it was uncertain that space plasma hurricanes even existed, so to prove this …
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A team of physicists from the United States and Japan has experimentally observed a phenomenon called quantum oscillation in a two-dimensional topological insulator — monolayer tungsten ditelluride (WTe2). The team’s findings, published in the journal Nature, hint at the existence of an entirely new type of quantum particle — a …
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Today, Dec. 14, observers along a narrow path in northern Patagonia, crossing Chile and Argentina, will witness one of nature’s most spectacular phenomena: a total eclipse of the Sun. Such an event usually draws travelers from around the world. But because of COVID-19 and its attendant restrictions, few Americans …
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An international team of physicists has studied the controlled interaction of two spatially separated time crystals. Experimental set-up. Quartz-glass sample container cylinder is filled partially with superfluid 3He-B, leaving a free surface of the superfluid approximately 3 mm above the centre of the surrounding coil system. The space above the …
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Physicists Observe Branched Flow of Light Physicists from the Technion-Israel Institute of Technology and the University of Central Florida have experimentally observed optical branched flow in liquid soap films. Branched flow pattern shown on top of the interference color pattern generated by weak white light, making it possible to observe …
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It is stars that affect planets, for the most part, and not the other way around. But researchers now claim to have found the first example of stellar pulsations caused by an exoplanet. The star HAT-P-2 is emitting visible pulses that seem to be a result of a particularly large …
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