查询词典 meson

We show that the chiral expansionis slowly convergence in vector meson energy region.

我们显示出：在矢量介子能区，手征展开是缓慢收敛的。

At first, we introduce in detail relativistic mean-field theory, where a common Lagrangian density is presented. Starting with this Lagrangian density, we can obtain the Dirac equation and Klein-Gordon equations for nucleon and meson field by using Euler-Lagrangian equation.

本文首先详细介绍了相对论平均场理论的一些公式推导，给出了常用的一般的相对论平均场的拉格朗日量，从这个拉氏量出发，利用Euler-Lagrange方程就可导出核子与介子场的运动方程。

Guangzhou City, Ho Li Stainless Steel Products Factory Main Products Fashion has stainless steel shelves, stainless steel blender blade, stainless steel metal products (commonly Block, U-type pumping hands, lock Activity card, Ox Lee, the seventh song, Yuan Xin hinges, decorative cover, seven Qu word glass folder, hose hinge teeth, small to take over the meson, small cow door, metadata and, welding glass folder, directly to the glass folder, Park Top screw head, get a barrel, straight out of the screw head, welding screw head, Hengmen Play , elastic cross-door plug, trunk sleeve with stainless steel chain inserted door with lock ring card, straight trunk with side door horizontal interpolation, long locks card sleeve, rectangular key drainage, triangle decorated occasional bending as nose, triangular drainage key, day care word ornaments, doll head) can be customized to any specifications of stainless steel products, widely used in various industries.

广州市合利不锈钢制品厂主要产品有不锈钢时装货架，不锈钢搅拌机叶片，不锈钢五金产品（通座，U型抽手，活动锁牌，牛利，七字曲，元心铰，饰盖，七字曲玻璃夹，喉牙铰，小接手，介子，小门牛，元并，焊接玻璃夹，直出玻璃夹，园顶螺丝头，揽桶，直出螺丝头，焊接螺丝头，横门插，弹力横门插，象鼻套筒，带不锈链门插，带圈锁牌，直象鼻，带方横门插，长锁牌，套筒，长方形渠匙，三角饰托，弯象鼻，三角渠匙，日字饰托，公仔头）可订做任何规格不锈钢产品，广泛应用于各个行业。

It foreshow, they are having relation that meson and ε field,μ field.

它预示，介子和ε0 μ0他们的关系。

We find the most contributions of form factors come fromΨπ,K andΨB, but the contributions ofΨσfrom the pion and the kaon meson, the contribution ofΔfrom B meson are very small, and can be neglected in most of the calculations.

结果发现π、K介子波函数中的Ψπ，K，B介子波函数中的ΨB对形状因子的贡献最大，而π、K介子波函数中的Ψσ，B介子波函数中的Δ对形状因子的影响很小，可以忽略。

We then generalize the method to obtain QCD low energyeffective Lagrangians including the vector meson ρ and the pseudoscalar meson〓.

我们又将以上方法进行了推广，推导出了含矢量介子、含〓的低能有效手征拉氏量。

In this thesis, we give a review on RMF model systematically. Combining the quake effort on the meson field introduced by Quantum meson coupling model, we reconstruct the RMF model and investigate the basic property of some nuclei.

本文首先介绍了量子强子动力学理论，这个理论是在很多地方都有成功的应用，在 QHD 基础上，引入了考虑核内结构的夸克介子耦合模型，借鉴 QMC 中对夸克介子的成功耦合，本文改进相对论平均场理论，使其更精确的计算锂等原子核的基态性质，研究中子晕等现象。

It is found that the unitarity of the effective meson theory resulted from resummation derivations demands an upper-limit to the momentum of vector meson.

我们发现，用重求和方法得到的等效介子理论，其么正性要求矢量介子的动量有一个上限。超过此上限，这种手征等效理论的描写方式失效。

The results of DDME1 and TW99 have little odds, they both give the stronger meson field potential, the smaller hyperon transition density, the harder equation of state and the bigger maximum mass; opposite to DDME1 and TW99, the GL97, TM1 and GL85 give the weaker meson field potential, the bigger hyperon transition density, the softer equation of state and the smaller maximum mass.

其中DDME1和TW99计算的结果基本相同，它们给出较强的介子场势、较小的超子转变密度、较硬的物态方程和较大的质量极限；而GL97、 TM1和GL85

Adopting Lorentz-invariant coupling model of neutron-antineutron and neutral meson strong interaction, we have physical analysis and accurate calculation on the neutron and antineutron to two neutral meson renormalization chain diagram propagator, and acquire the theoretical result; furthermore, after application of it to the physical process analysis and cross-section evaluation in this reaction , the differential cross-section of which is given. Moreover, through the comparison among this calculation and those scenarios: neutron-antineutron tree diagram and renormalization chain diagram propagator contribution, some important information about radiative correction was obtained.

采用中子-反中子与中性介子强相互作用的Lorentz不变耦合模型，对中子反中子重整化链图传播子作了有关物理分析及其严格解析计算，获得精确理论计算结果；进而将此结果用于中子反中子反应生成两个中性介子反应的物理过程分析及其截面的计算研究中，并精确计算出中子反中子重整化链图传播下中子反中子反应反应微分截面；最后还将此计算结果与中子反中子树图和重整化单圈链图传播下该反应微分截面作了对比分析，获得了有相关辐射修正的重要信息。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。