So it emits phased muon particles.

它会阶段性放射出定相μ介子。

Neutrinos come in three flavors, called electron, muon and tau.

电子中微子、μ中微子和τ中微子。

A muon is one of the so-called elementary particles, one with no smaller parts.

介子是所谓的基本粒子之一，且不能再分。

Theory said that a muon neutrino could almost instantly change into an electron neutrino.

理论上，μ中微子几乎能秒变称电子中微子。

When they do, they create particles that are smaller than atoms, such as neutrons and muons.

当它们穿过地球大气层时，它们会产生比原子更小的粒子，如中子和μ介子。

See, there are three different kinds or flavors of neutrinos: electron neutrinos, tau neutrinos, and muon neutrinos.

看！有三味中微子：电子中微子、τ中微子、μ中微子。

These may be an electron and its antimatter equivalent, a positron, or two heavier leptons, a muon and an antimuon.

它们可能是一个电子和它的反物质等价物，一个正电子，或者两个更重的轻子，一个介子和一个反介子。

The same was found for electrons, which have heavier siblings called the muon and the tau.

电子也有同样的发现，它们有更重的兄弟姐妹， 称为 μ 介子和 tau。

Four years later, also using a cloud chamber, he discovered the muon, again in cosmic rays.

四年后，同样使用云室， 他又在宇宙射线中发现了介子。

Krauth says just getting hold of the muons was tricky.

克劳斯说，仅仅掌握 μ 子就很棘手。

The muons last for only two microseconds.

介子只持续两微秒。

According to the accepted rules of particle physics, such decays should yield as many muons as they do electrons.

根据公认的粒子物理学规则，这种衰变应该产生与产生电子一样多的 μ 子。

Now the muon is an unstable particle.

现在 μ 子是一个不稳定的粒子。

Instead, Dr Patel's team found that only 85 muons were emitted for every 100 electrons.

相反，帕特尔博士的团队发现每 100 个电子只发射 85 个 μ 子。

Okay. Get this. " Professor Jones told the symposium he had a new method " for calculating the mass of a muon.

好了，听听这个。琼斯教授在研讨会上说，他找到了计算μ介子质量的新方法。

Topics that people use muons for range from fundamental constants of nature, basic symmetries, weak nucleon and nuclear interactions.

人们使用 μ 子的主题范围从自然的基本常数、基本对称性、弱核子和核相互作用。

So what happens next happens fast:  They shoot the muons into a tube containing helium gas.

所以接下来发生的事情发生得很快：他们将 μ 子发射到装有氦气的管子中。

Photons, carriers of the electromagnetic force, interact with electrons, muons and taus in identical ways.

光子，电磁力的载体，以相同的方式与电子、介子和陶子相互作用。

Scientists used muons, a by-product of the cosmic rays constantly raining down on our planet, to image the interior of the pyramid.

科学家用μ介子来描绘金字塔内部的情况，μ介子是一种持续落到地球上的宇宙射线的副产品。

Measurements of weak interactions found that there are different kinds of neutrinos associated with the electron, muon, and tau.

弱相互作用的测量发现， 有不同种类的中微子与电子、μ 子和 tau 相关。