单词 | weak interaction |
释义 | weak interaction [`wēk ´in·tǝr`ak·shǝn] PARTICLE PHYSICS One of the fundamental interactions among elementary particles, responsible for beta decay of nuclei, and for the decay of elementary particles with lifetimes greater than about 10-10 second, such as muons, K mesons, and lambda hyperons; it is several orders of magnitude weaker than the strong and electromagnetic interactions, and fails to conserve strangeness or parity. Also known as beta interaction. |
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