| 单词 | hyperon |
| 释义 | hyperon [`hī·pǝ´rän] PARTICLE PHYSICS 1. An elementary particle which has baryon number B = +1, that is, which can be transformed into a nucleon and some number of mesons or lighter particles, and which has nonzero strangeness number. 2. A hyperon (as in the first definition) which is semistable (the lifetime is much longer than 10-22 second). |
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