中英
1
down quark中文是什么意思
- 中文翻譯
- 造句
- (物)下夸克
- 下夸克
- down down3 n. 1.(裝被、褥等用的)鴨絨 ...
- quark n. 夸克〔假設的帶電核粒子，為已知的粒子如質子及中子等 ...
- down quark d 夸克
- quark n. 夸克〔假設的帶電核粒子，為已知的粒子如質子及中子等的基本構成部分〕。
- s quark s夸克
- t quark t夸克
- b quark b夸克
- bottom quark (物)底夸克; 底夸克
- c quark c夸克
- charm quark (物)粲夸克; 粲夸克
- charmed quark 粲夸克
- d quark d夸克
- leptonic quark 輕子夸克
- quark atom 夸克偶素; 夸克原子
- quark condensate 夸克凝聚
- quark confinement 夸克禁閉; 夸克局束; 夸克約束
- quark current 夸克流
- quark flavor 夸克味; 夸克香味
- quark laser 夸克激光器
- quark model 夸克模型
- quark star 夸克星
- quark topology 夸克拓撲
- side quark s 夸克
- strange quark (物)奇夸克; 奇夸克
- strange quark s 夸克
- In summary , the up and down quarks make up all the nuclei and electrons orbiting around nuclei form atoms
總括來說，上夸克和下夸克組成原子核，而電子則圍繞原子核而形成原子。 - 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
質子的內部是三粒夸克：兩粒上夸克和一粒下夸克uud中子的內部也是三?？淇耍阂涣Ｉ峡淇撕蛢闪Ｏ驴淇藆dd 。 - 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
鑒于已有大量文獻討論了核物質中的夸克凝聚，本文將討論在奇異物質中的夸克凝聚。而在介質中的夸克凝聚的基本公式可由hellmann - feynman理論導出，所以運用手征對稱自發(fā)破缺拉氏量以及平均場近似，我們就可以討論在奇異物質中的夸克凝聚，由所計算的結果表明： ( 1 )奇異物質中的夸克凝聚隨奇異物質密度的增大而單調減小。 ( 2 ) -凝聚的出現(xiàn)對衰減率有影響。
- down quarkとは意味：ダウン?クォーク◆【略】d quark
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