| 词汇 | meson |
| 释义 | meson noun[ C ] physics specializeduk /ˈmiː.zɒn/ us /ˈmez.ɑːn/ a very small piece of matter that contains a quark and an antiquark介子 Physics: atoms, molecules & sub-atomic particles acceptor alpha particle anti-radical antilepton antimatter antineutrino beta decay beta particle hadron Higgs boson interatomic interelectronic interionic monatomic multi-molecular multiparticle muon neutrino positron relative atomic mass meson | American Dictionarymeson noun[ C ] us/ˈmez·ɑn, ˈmes-//ˈmeɪ·zɑn, -sɑn/ physics a very small piece of matter that contains a quark and an antiquark. Examples of mesonmeson This exchange of identity is similar to a proton-neutron collision with exchange of a meson, in which the two nucleons exchange identity. Only the meson, or high-energy peak is, compared to the rest, slightly augmented. The discovery has no practical application at the present time because the meson exists for only about a millionth of a second after its formation. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Nuclear emulsions can be used to record and investigate fast charged particles like nucleons or mesons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Baryons, along with mesons, are hadrons, meaning they are particles composed of quarks. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Each meson has a corresponding antiparticle (antimeson) where quarks are replaced by their corresponding antiquarks and vice-versa. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The other members of this octet are the four kaons and the eta meson. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some of non-fundamental bosons (namely, mesons) also may transmit forces (see below), although non-fundamental ones. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These violent collisions produce new particles; heavier versions of the familiar protons and neutrons as well a whole variety of intermediate mass particles called mesons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In quantum hydrodynamic models, mesons mediate the residual strong force between nucleons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Baryons and mesons belong to the hadron family, which are the quark-based particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A hadron absorber downstream of the decay tunnel removes the remaining protons and mesons from the beam. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The two types of hadrons are the mesons (one quark, one antiquark) and the baryons (three quarks). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One of the goals of the field of hadronic spectroscopy is to find experimental evidence for exotic mesons, tetraquarks, molecules of hadrons, and glueballs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is the equivalent of the phi (strange quark, strange antiquark), psi (charm quark, charm antiquark) and upsilon (bottom quark, bottom antiquark) mesons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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