Particle Physics. Frequently written τ. More fully tau meson. A meson that decays into three pions, now identified with the positive kaon. Now histo…
| 单词 | θ79133 |
| 释义 | the world > matter > physics > atomic physics > particle physics > particle participating in strong interaction > meson > [noun] > type of (10) tau1949 Particle Physics. Frequently written τ. More fully tau meson. A meson that decays into three pions, now identified with the positive kaon. Now histo… photomeson1950 A meson emitted from a nucleus as a result of interaction with a gamma-ray photon. theta1954 Particle Physics. Frequently written θ. A meson that decays into two pions, now identified with the kaon. Also theta meson. eta1961 Particle Physics. Frequently written η. Any of a group of mesons with zero spin and isospin. omega meson1961 Particle Physics. In full omega meson. A neutral meson with a mass of 782 MeV that is observed as a resonance when protons and antiprotons of… rho1961 Physics. In full rho meson. A neutral meson with a mass of approx. 770 MeV (1506 times that of an electron) that is observed as a resonance and on… phi meson1962 Particle Physics. In full phi meson. Any of a group of neutral mesons which have the same quantum numbers as the omega meson, are observed as… bottomonium1976 A particle consisting of a bottom quark bound to a bottom antiquark. Cf. quarkonium, n. quarkonium1977 A meson consisting of a quark (usually a charm or a bottom quark) bound to the corresponding antiquark; (as a mass noun) matter consisting of such… upsilon1977 Particle Physics. . A meson with a mass of approx. 9.46 GeV that consists of a bottom quark bound to its antiquark. Also more fully upsilon particle… |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。