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down quark中文是什么意思

发音:  
用"down quark"造句"down quark"怎么读"down quark" in a sentence"down quark"的同义词

中文翻译手机手机版

  • (物)下夸克
  • 下夸克

例句与用法

  • In summary , the up and down quarks make up all the nuclei and electrons orbiting around nuclei form atoms
    总括来说,上夸克和下夸克组成原子核,而电子则围绕原子核而形成原子。
  • Proton is , in turn , made up of two up quarks and one down quark . neutron is made up of two down quarks and one up quark
    质子的内部是三粒夸克:两粒上夸克和一粒下夸克uud中子的内部也是三粒夸克:一粒上夸克和两粒下夸克udd 。
  • There has been many papers to discuss the in - medium quark and gluon condensates in nuclear matter which use the models with su ( 2 ) l su ( 2 ) r sym - metry . now , we make use of the chiral model su ( 3 ) l su ( 3 ) n including the baryon octet to discuss the quark condensate < qq > in strange matter , where q is an up or down quark field . on the one hand , from the experimetal data , it is found that < qq > vac = - ( 225 25mev ) 3 , on the other hand , with the hellmann - feynman theorem , quark condensate can be evaluated on the hadronic level . in this paper , we will investigate the quark condensate in strange matter with the chiral symmetry su ( 3 ) l x su ( 3 ) rspontaneous breaking lagrangian to obtain the variation of the quark condensate in the strange matter when the baryon number change . it can be applied to understand the neutron stars when the neutron star are considered to be constructed by the strange matter . because nertron stars are homogeneous and at very low temperature , we will use the mean - field approximation and zero temperature throughout this paper
    鉴于已有大量文献讨论了核物质中的夸克凝聚,本文将讨论在奇异物质中的夸克凝聚。而在介质中的夸克凝聚的基本公式可由hellmann - feynman理论导出,所以运用手征对称自发破缺拉氏量以及平均场近似,我们就可以讨论在奇异物质中的夸克凝聚,由所计算的结果表明: ( 1 )奇异物质中的夸克凝聚随奇异物质密度的增大而单调减小。 ( 2 ) -凝聚的出现对衰减率有影响。
用"down quark"造句  

英文解释

  • a stable quark with an electric charge of -1/3 and a mass 607 times that of an electron

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