The first antiparticle was discovered by American physicist Carl Anderson in 1932.

第一个反粒子是美国物理学家卡尔·安德森在1932年发现的。

A little later, for every 1 billion particles and antiparticles, there was one extra particle.

不久之后，每十亿个粒子和反粒子，就有一个额外的粒子。

What is the only fermion that may not have an antiparticle?

唯一一个有反粒子的费密子是什么？

After all, when an antiparticle meets a particle, a so-called annihilation occurs.

毕竟，当反粒子遇到粒子时，就会发生所谓的湮灭。

It's just one way of understanding how particles of matter may be similar to and different from their antiparticles.

这仅是一方面来了解粒子和物质与它们的反物质的异同。

And observing how they are like and unlike their antiparticles could help us understand the very nature of the universe.

观测到它们与对应反物质的异同，这助我们了解宇宙的本质。

Later, thanks to advanced technologies, physicists were able to obtain not just antiparticles, but whole anti-atoms, anti helium, and antihydrogen.

后来，由于先进的技术，物理学家不仅得到反粒子，而且得到整个反原子、反氦和反氢。

) There could be whole antiworlds and antipeople made out of antiparticles.

) 存在由反粒子构成的整个反世界和反人。

A particle and its antiparticle and you put them together, they will annihilate.

一个粒子和它的反粒子放在一起，它们会相互湮灭。

The virtual particles always appear and vanish in pairs  of a particle and an antiparticle.

虚粒子总是成对出现和消失，一对包括一个粒子和一个反粒子。

A particle has the same mass as its corresponding antiparticle but opposite charge.

一个粒子与其对应的反粒子具有相同的质量但相反的电荷。

1932 American physicist Carl Anderson discovers the positron, antiparticle of the electron, in cosmic rays.

1932年，美国物理学家卡尔·安德森在宇宙射线中发现了正电子，即电子的反粒子。

Each time scientists create or destroy a new particle, an antiparticle is born or dies accordingly.

每次科学家创造或摧毁一个新粒子，反粒子就会相应地产生或消亡。

So that is a development of the idea there's particle, there's antiparticle, and so on.

这就是关于存在粒子、反粒子等概念的发展过程。

ATLAS has now confirmed that these lead-nucleus collisions produce top quarks, together with their antiparticle counterparts.

阿特拉斯探测器现已确认， 这些铅核碰撞会产生顶夸克，及它们的反粒子。

The reason is that the laws of physics are not quite the same for particles and antiparticles.

原因是粒子和反粒子的物理定律并不完全相同。

And in fact, beginning with the work of Dirac, we know that every particle has an antiparticle.

事实上，狄拉克的研究开始，我们就知道每一种粒子都有一个对应的反粒子。

Quantum fluctuations in empty space are constantly creating pairs of particles and antiparticles, only for them to be annihilated an instant later.

空间中的量子涨落在无时无刻地创造一对粒子和反粒子，只为了在瞬间之后相互湮灭。

These particles and antiparticles that hypothetically pop up in the vacuum of space, why is that not energy neutral?

这些假设中在空间真空里出现的粒子和反粒子，为什么不是量中性的？

P, and T. The symmetry C means that the laws are the same for particles and antiparticles.

P 和 T。对称性 C 意味着粒子和反粒子的定律相同。