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Differences between matter and antimatter have previously been observed in the behaviour of another type of particle, mesons, which are made of a quark and an antiquark.—William Barter, Space.com, 1 Aug. 2025 That explosion of energy converts itself into a quark and antiquark pair.—Henry Carnell, Quanta Magazine, 10 Jan. 2025 Specifically, a photon with sufficient energy can be converted into what's called a J/ψ meson, composed of a charm quark and charm antiquark through a process that's sensitive to the configuration of gluons in any nearby protons.—John Timmer, Ars Technica, 3 Apr. 2023 Quark-antiquark pairs are constantly popping in and out of existence, and gluons tend to split and multiply, especially when a proton gains speed.—Clara Moskowitz, Scientific American, 14 Feb. 2023 See All Example Sentences for antiquark
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