| 词汇 | antiquark |
| 释义 | antiquark noun[ C ] uk /ˈæn.tiˌkwɑːk/ us /ˈæn.t̬iˌkwɑːrk/ the antiparticle of a quark反夸克 Physics: atoms, molecules & sub-atomic particles acceptor alpha particle anti-radical antilepton antimatter antineutrino beta decay beta particle Higgs boson interatomic interelectronic interionic intermolecular monatomic multi-molecular multiparticle muon neutrino positron relative atomic mass antiquark | American Dictionaryantiquark noun[ C ] us/ˈænt·iˌkwɑrk, ˈæn·tɑɪ-/ physics the antiparticle of a quark Examples of antiquarkantiquark Until a few years ago, it was believed that some experiments showed the existence of "pentaquarks" exotic baryons made of four quarks and one antiquark. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a candidate for being a tetraquark: a particle composed of two quarks and two antiquarks. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This type of reaction will occur between any baryon (particle consisting of three quarks) and any antibaryon (consisting of three antiquarks). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Every quark carries one of three color charges of the strong interaction; antiquarks similarly carry anticolor. 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. 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. The experiment will also examine the modifications to the antiquark structure of the proton from nuclear binding. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Because mesons are made of one quark and one antiquark, they can be found in triplet and singlet spin states. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The combination of a bottom antiquark and a top quark is not thought to be possible because of the top quark's short lifetime. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Symmetrically, three antiquarks with the colors antired, antiblue and antigreen can form a color-neutral antibaryon. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The additional particles may include quarks, antiquarks or gluons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The small excess of quarks over antiquarks led to a small excess of baryons over antibaryons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Higher means a stronger bias favoring quarks over antiquarks. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The charm quarks are observed bound with charm antiquarks in mesons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The newly created quarks and antiquarks pair into mesons, producing additional pions and kaons. 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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