qcd造句

• Qcd sum rule and hadron physics
  求和规则与强子物理
• Quantum chromodynamics , qcd
  量子色动力学
• Chiral symmetry spontaneous breaking and confinement are two very important properties of low energy qcd
  手征自发破缺和色禁闭是低能qcd的两个重要性质。
• Qcd sum rule is one of those approaches designed for analytic calculation and suitable for the preceding aim
  Qcd求和规则是非微扰方法中的一种，可以用来解析计算重子质量。
• With the development of quantum chromodynamics ( qcd ) , people started to investigate the origin and nature of the pomeron from qcd viewpoint
  随着量子色动力学( qcd )理论的发展，人们开始用qcd的观点去探讨pomeron本源和性质。
• At finite baryon densities , the underlying theory of strong interaction , qcd , is not solvable in the nonperturbative low - energy regime
  而对于有限重子密度，强相互作用的基本理论量子色动力学( qcd )在低能区是不可解的。
• As is well known , in high energy collisions the hadromzation of partons , being a soft process , can not be analyzed using perturbative qcd ( pqcd )
  在高能碰撞多粒子产生中，部分子的强子化是一个软过程，不能用微扰qcd来进行研究
• So it ' s very difficult to study nuclear phenomenon with qcd . while qhd is a low energy effective theory which describes hadronic physics very well
  在当前， qhd理论是一个很好的研究中低能区强子物理的有效理论，其物理描述简单，直观。
• 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，由于夸克势只能唯象地得到，夸克禁闭机制及其对重介子的影响仍在探索之中
• 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 ~ -对撞所产生的末态粒子阶乘矩的分布中呈现出各向同性，表明时空演化中的分形结构为自相似。
• 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
  高能质子?质子弹性散射对于理解强相互作用的基本理论? ? qcd理论和寻找新的物理都是一个很重要的课题。
• 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求和规则从关联函数出发，假设在从微扰向非微扰区域转移过程中，禁闭效应可以用ope级数修正表征。
• The phenomena of phase transition in complex systems have been always a great mysterious subject for many generations of physicists . very recently , a great progress in chaos and fractal has also been made
  物理学的许多领域，从凝聚态到天体物理，从格点qcd到核物理等都会涉及到相变现象的发生。
• 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
  本文构建了一种有伸缩子( dilaton )的量子色动力学( qcd )有效理论，得到了一种新的夸克相互作用势。
• Qcd is the fundamental theory of strong interaction . however , the perturbative calculation in qcd is only available at high energy . the hadrons belong to intermediate and low energy area
  一般来说： qcd是研究强相互作用的基本理论，但qcd中的微扰计算方法只有在能量很高的情况下才适用，而对于中低能强子物理是无能为力的。
• Phenomena where the proton - proton interaction takes place through the interaction between the constituent quarks inside the projectile and target proton by exchanging gluon which is a mediator of strong interaction described by qcd
  在qcd理论中，质子和质子的相互作用是通过入射和出射粒子之间交换传递强相互作用的胶子来实现的。
• 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
  只要可以获得关联函数的强子表示， qcd求和规则就可以通过强子参数来表示理论结果，这样就可以得到感兴趣的量。
• In this region it is necessary to account for nonperturbative effects connected with the complicated structure of qcd vacuum . all this leads to a theoretical uncertainty in the qq po tential at intermediate and large distances
  随着重夸克偶素基态和激发态质量实验数据的大量积累，通过理论预期与实验数据的比较，所获得的夸克?反夸克相互作用势的信息是很有趣的。
• 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 )
  探寻强相互作作理论?量子色动力学( qcd )所预言的夸克胶子等离子体( qgp )的信号及相变性质( ? )直是高能核?核碰撞实验的重要目标之一。
• 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，由于作为强相互作用基本理论的量子色动力学( qcd )在低能区(大距离)的非微扰效应，各种qcd激发的模型一直被发展来解释强子的性质。