quark中文意思是什麼

quark 的中文意思

quark 例句

1. By comparing theoretical predictions with experimental data, one can obtain a valuable information on the form of the qq interaction potential. such information is of great practical interest, since at present it is not possible to obtain the quark - anti quark ( qq ) potential in the whole range of distances from the first principles of qcd
   夸克勢模型是其中重要的模型之一，它不僅能研究強子的基態，而且能研究激發態，但是，源於在中和大距離與qcd真空的復雜結構有關的非微擾特徵，還不可能獲得整個距離范圍內的夸克?反夸克相互作用勢。
2. Adopting the assummation that the quark interaction is the sum of the usual one - gluon direct exchange and the mixture of linear scalar and vector potentials, we structure the relativistic corrections of order v2 / c2to the cornell potential, including the annihilation potential for the quark and anti quark of the same favors which plays the same role with the one - gluon direct exchange at short distances. the effects of the relativistic corrections on the hyperfine splittings of quark onium states are discussed, and a good fit to the available experimental data is obtained on heavy quark onium mass spectra
   采納庫侖勢源於單膠子直接交換，而線性禁閉源於標量和矢量的混合，同時考慮在短程區域與單膠子直接交換起同樣作用的同味正反夸克的湮滅，構造了靜態夸克-反夸克勢到v ~ 2 c ~ 2級次的完全相對論修正，並擬合計算了重介子偶素的能譜，討論了相對論修正對重介子偶素能級分裂的作用。
3. 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 ） -凝聚的出現對衰減率有影響。
4. It is natural to suppose that pomeron exchange is just the exchange of several gluons, at least two, and these gluons couple to a same single quark
   我們很自然的想到交換pomeron的過程對應于交換幾個膠子，至少應該是兩個膠子，而且這些膠子應該和質子內部的同一夸克相藕合。
5. One of the focuses in investigating the high energy heavy - ion collisions is to explore the existence and the properties of quark - gluon - plasraa ( qgp ) which is predicted by the strong interaction theory - quantum chromodynamics ( qcd )
   探尋強相互作作理論?量子色動力學（ qcd ）所預言的夸克膠子等離子體（ qgp ）的信號及相變性質（ ? ）直是高能核?核碰撞實驗的重要目標之一。

quark 的相似字

瀏覽更多英漢字典詞條

前往 英漢字典目錄 瀏覽全部詞條。