查询词典 antiquark

In order to study the transitions between quarks, we integrate out the effective antiquark fields and get a form of effective Lagrangian in terms of effective quark fields.

为方便描述正夸克间的跃迁过程，将上一步得到的有效拉氏量中有效反夸克场积分出去，从而在拉氏量中仅明显包含有效正夸克场。

Any of a family of subatomic particles that participate in strong interactions, are composed of a quark and an antiquark, and have masses generally intermediate between leptons and baryons.

介子任一种具有较强相互作用力的亚原子粒子群，由一夸克与一反夸克构成，并具有通常介于轻子和重子间的质量

In the usual HQET, as an approximation for very large mass of the heavy quark, quark and antiquark fields are completely decoupled and treated separately in the effective Lagrangian.

原有重夸克有效理论的出发点是在重夸克质量m〓很大的条件下夸克与反夸克场几乎无耦合。

The CDF physicists measured the rate of matter-antimatter transitions for the neutral Bs meson, a particle composed of a "bottom" quark and a "strange" antiquark.

CDF的物理学家们测量了中性Bs介子（一种由一个底夸克和一个奇夸克构成的粒子）的物质-反物质转变速率。

The problem is how to consider the relativistic corrections to this potential. 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 antiquark of the same favors which plays the same role with the one-gluon direct exchange at short distances.

采纳库仑势源于单胶子直接交换，而线性禁闭源于标量和矢量的混合，同时考虑在短程区域与单胶子直接交换起同样作用的同味正反夸克的湮灭，构造了静态夸克-反夸克势到v~2／c~2级次的完全相对论修正，并拟合计算了重介子偶素的能谱，讨论了相对论修正对重介子偶素能级分裂的作用。

Thanks to the uncertainties of quantum mechanics, however, myriad gluons and quark-antiquark pairs flit into and out of existence within a proton in a frenzy that's nearly impossible to analyze but that produces 95% of the particle's mass.

但是，由于量子力学的不确定性，在一个质子中无数胶子和夸克-反夸克对极速的流入和流出，这几乎是不可能分析的，但这些产生了粒子95％的质量。

Thanks to the uncertainties of quantum mechanics, however, myriad gluons and quark-antiquark pairs flit into and out of existence within a proton in a frenzy that's nearly impossible to analyze but that produces 95% of the particle's mass.

但是，由于量子力学的不确定性，无数胶子和夸克-反夸克组合在质子内部不停地出现又消失，这种狂乱状态几乎不可能分析，但是这种状态生成了粒子95%的质量。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。