qcd 中文意思是什麼

qcd 解釋
chromodynamics]量子色動力學
  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 - antiquark ( 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. At finite baryon densities, the underlying theory of strong interaction, qcd, is not solvable in the nonperturbative low - energy regime

    而對于有限重子密度，強相互作用的基本理論量子色動力學（ qcd ）在低能區是不可解的。
  3. In quantum chromodynamics ( qcd ), vacuum is not trivial, that is, vacuum carry quantum numbers. such a behavior is embodied by non - perturbative con - densates of quarks and gluons. since hadrons are excitations with respect to the vacuum, hadronic properties are ultimately related to properties of the vacuum. based on the vacuum structure, some hadron properties have been described well. in the low energy region, qcd has two very important proper - ties : chiral symmetry spontaneous breaking and confinement, which are closely related to the vacuum characteristics of qcd. much experiments and theoretical studies have shown that chiral symmetry spontaneous breaking is very important to understand the low - energy feature of the strongly interacting physics, and the quark condensates give an expression to chiral symmetry spontaneous breaking. according to goldstone ' s theorem, the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken. there are two ways : inear and non - linear methods to carry out this constraint. in our paper, we will use the non - linear method

    大量實驗和理論研究表明，手征對稱自發破缺對于理解低能強相互作用十分重要，而夸克凝聚又是導致手征對稱自發破缺的因素。按goldstone理論，伴隨手征對稱自發破缺應該會有零質量的goldstonebosons產生。而對于這一條件的實現有線性和非線性兩種方法本文將用非線性的方法將手征對稱自發破缺應用於su （ 3 ）模型即重子八重態，得出描述其強相互作用的手征對稱自發破缺lagrange密度。
  4. Qcd sum rule and hadron physics

    求和規則與強子物理
  5. With the development of quantum chromodynamics ( qcd ), people started to investigate the origin and nature of the pomeron from qcd viewpoint

    隨著量子色動力學（ qcd ）理論的發展，人們開始用qcd的觀點去探討pomeron本源和性質。
  6. Quantum chromodynamics, qcd

    量子色動力學
  7. In this thesis, we derive a new quark potential by constructing the effective theory of quantum chromodynamics ( qcd ) with dilation inspired by superstring theory and study this new quark potential in heavy mesons sector

    本文構建了一種有伸縮子（ dilaton ）的量子色動力學（ qcd ）有效理論，得到了一種新的夸克相互作用勢。
  8. 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。
  9. Since quantum chromodynamics ( qcd ) is nonperturbative in the infrared region as the basic theory of strong interaction, the potential model as one of various models inspired by qcd has been developed to explain the properties of hadron

    目前，由於作為強相互作用基本理論的量子色動力學（ qcd ）在低能區（大距離）的非微擾效應，各種qcd激發的模型一直被發展來解釋強子的性質。
  10. In qcd description, pp elastic scattering is a gluon exchange process. in the other words, pp elastic scattering is a high energy multiple scattering of two quark - composite system. therefore, one can describe proton - proton elastic scattering by quark multiple scattering theory, such as glauber theory, although this mechanism cannot have vacuum quantum numbers requested by experiments

    一方面我們可以認為質子?質子彈性散射是一個膠子交換過程，另一方面我們也可認為質子?質子彈性散射是兩個夸克復合系統的多重散射過程，因此我們可以用夸克的多重散射理論，如glauber理論來描述質子?質子的彈性散射過程，雖然，這種機制不可能具有實驗所要求的真空量子數。
  11. Once obtained the hadronic representation of the correlation function in consideration, qcd sum rule allows one to express the theoretical calculation via hadronic parameters. thus one can derive the interested quantity

    只要可以獲得關聯函數的強子表示， qcd求和規則就可以通過強子參數來表示理論結果，這樣就可以得到感興趣的量。
  12. Here are some references for nrqcd & nrqed : renormalization group scaling in nonrelativistic qcd on the multipole expansion, the qcd heavy quark potential to order v * * 2 : one loop matching conditions on matching calculations

    11下面是非相對論性量子色動力學和非相對論性量子電動力學的一些參考資料：關于多極展開的非相對論性量子色動力學中的重整化群定標，關于匹配計算的v * * 2階的量子色動力學重夸克勢：單圈匹配條件。
  13. As is well known, in high energy collisions the hadromzation of partons, being a soft process, can not be analyzed using perturbative qcd ( pqcd )

    在高能碰撞多粒子產生中，部分子的強子化是一個軟過程，不能用微擾qcd來進行研究
  14. Second, the quark potential has to be at present determined phe - nomenologically due to qcd nonperturbation and the mechanism of quark confinement is still in search

    尹其次，由於夸克勢只能唯象地得到，夸克禁閉機制及其對重介子的影響仍在探索之中
  15. Proton - proton elastic scattering at high energies is an important issue in understanding of qcd - the fundamental theory of strong interaction and in searching for new physics

    高能質子?質子彈性散射對于理解強相互作用的基本理論? ? qcd理論和尋找新的物理都是一個很重要的課題。
  16. Chiral symmetry spontaneous breaking and confinement are two very important properties of low energy qcd

    手征自發破缺和色禁閉是低能qcd的兩個重要性質。
  17. On the contrary, the fractal in space - time evolution in e + e - collisions turns out to be self - similar, which is due to the isotropy of qcd dynamics

    另一方面，在e ~ + e ~ -對撞所產生的末態粒子階乘矩的分佈中呈現出各向同性，表明時空演化中的分形結構為自相似。
  18. Qcd sum rule is one of those approaches designed for analytic calculation and suitable for the preceding aim

    Qcd求和規則是非微擾方法中的一種，可以用來解析計算重子質量。
  19. The main assumption of qcd sum rule is that, at the transition from perturbative to non - perturbative regime, the confinement effect can be described as the power corrections in the ope

    Qcd求和規則從關聯函數出發，假設在從微擾向非微擾區域轉移過程中，禁閉效應可以用ope級數修正表徵。
  20. Although we only worked on two toy models, the methods and some of the results can be used to study medium effects in more realistic systems, such as nuclear matter ( hadronic dynamic models ), electromagnetic plasma ( hot qed ) and qgp ( hot qcd )

    雖然_ 6 ~ 3和標量qed是兩個理想模型，但是其研究方法和某些結果亦可運用於實際的研究系統中。比如，核物質（強子動力學模型） 、電磁等離子體（熱qed ）和夸克膠子等離子體（熱qcd ） 。
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