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单词 lambda hyperon
释义 lambda hyperon
[`lam·dǝ `hī·pǝ´rän]
PARTICLE PHYSICS
1. A quasi-stable baryon, forming an isotopic singlet, having zero charge and hypercharge, a spin of 1/2, positive parity and mass of 1115.5 megaelectronvolts.Designated Λ. Also known as lambda particle.
2. Any baryon resonance having zero hypercharge and total isotopic spin; designated ΛJP(m), where m is the mass of the baryon in megaelectronvolts, and J and P are its spin and parity (if known).
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