sigma baryon
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Any of three unstable subatomic particles in the baryon family, having a mass 2,328 to 2,343 times that of the electron and a positive, neutral, or negative electron charge. See Table at subatomic particle.
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Words nearby sigma baryon
Sigismund, Sigismund II, sigla, siglos, sigma, sigma baryon, sigma factor, sigma particle, sigmate, sigmatism, sigmoid
The American Heritage® Science Dictionary
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