antimuon

subatomic particle

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June 18, 2026

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An antimuon is the antiparticle of a muon. Like other antiparticles, it has the same mass as its corresponding particle but an opposite electric charge and magnetic moment. The muon itself is a subatomic particle similar to an electron but about 207 times heavier. Muons are unstable and decay into an electron and neutrinos within about 2.2 microseconds. When a particle and its antiparticle meet, they annihilate each other, releasing energy.123

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Feynman diagram
… (μ⁻) and its antiparticle, an antimuon (μ⁺). In the diagram of this interaction, both antiparticles (e⁺ and μ⁺) are represented as their corresponding particles moving backward in time (toward the past).
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… (μ⁻) and its antiparticle, an antimuon (μ⁺). In the diagram of this interaction, both antiparticles (e⁺ and μ⁺) are represented as their corresponding particles moving backward in time (toward the past).
Read More