| 单词 | weak force |
| 释义 | > as lemmas(the) weak force k. Physics. Applied to one of the four known kinds of force between particles, which is effective only at distances less than about 10—15 cm., is very much weaker than the electromagnetic and the strong interactions, and conserves neither strangeness, parity, nor isospin. Frequently in (the) weak force. ΘΚΠ the world > matter > physics > atomic physics > particle physics > weak or strong force > [adjective] > relating to weak force weak1954 1953 M. Gell-Mann in Physical Rev. 92 833/2 Let us suppose that both ‘ordinary particles’ (nucleons and pions) and ‘new unstable particles’..have interactions of three kinds:..(iii) Other charge-dependent interactions, which we take to be very weak.] 1954 Progress Theoret. Physics XII. 107/2 Contrary to the case of electric charge, v-charge is defined only for such particles that have strong nuclear interactions and its conservation is violated by the weak interactions responsible for decays. 1968 M. S. Livingston Particle Physics vii. 139 Parity conservation is violated in this weak interaction. 1972 G. L. Wick Elem. Particles iii. 43 Typical weak interactions are nuclear beta decay and the slow decays of elementary particles. 1976 Sci. Amer. Jan. 45/1 The weak force affects every particle but one, the exception being the photon. 1982 Ann. Reg. 1981 385 Theorists had already inferred that electromagnetism and the weak force were two extremes of the same thing. < as lemmas |
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