同样地，质子和中子也应该有对应的反粒子。
In the same way the proton and neutron should also have their corresponding antiparticles.
我们指出了还存在四种反粒子。
粒子符号上加一横，用来表示反粒子。
A horizontal bar over a particle symbol is used to designate the antiparticle.
另一种观点认为：暗物质颗粒同时也是自己的反粒子。
Another idea suggests that dark matter particles are their own antiparticles.
正电子及反粒子的发现。
粒子与反粒子间的对称性深深地锲入到物理学的基础之中。
The symmetry between particles and antiparticles is woven deep into the foundations of physics.
当粒子和反粒子相撞，他们在一小股能量闪烁后彼此湮灭。
When particles and anti-particles collide, they annihilate each other in a small flash of energy.
依照理论，物质只能在粒子-反粒子对中产生。
According to the theory, matter can only be created in particle-antiparticle pairs.
出现比0要少的粒子通常说明了你有了反粒子。
Fewer than zero particles being present usually means that you have antiparticles instead.
反物质是由那些常态物质构成的反粒子组成的物质。
Antimatter is matter that is composed of the antiparticles of those that constitute normal matter.
粒子和对应的反粒子碰撞后，被完全转化为电磁辐射能量。
Upon collision, the conversion of a particle and its corresponding antiparticle into pure electromagnetic ENERGY (called annihilation radiation).
当粒子和它的反粒子相遇时，它们会发生湮灭并产生能量。
When a particle and its antiparticle meet they can mutually annihilate and produce energy.
粒子与反粒子仍然存在碰撞的机会，因为万有斥力要比电极引力弱得多。
Particles and antiparticles could still collide, however, since gravitational repulsion is much weaker than electrical attraction.
正电子和电子(粒子和反粒子)在对撞中会发生湮灭，并产生电磁辐射。
Positron and electron (particle and anti-particle) can annihilate in collision turning into electromagnetic radiation.
与电子的质量相等但带正电荷的亚原子粒子(是电子的反粒子)。
A subatomic particle with the same mass as the electron but positive charge (it is the antiparticle of the electron).
目前可观测的宇宙将没有机会形成，因为相反粒子将马上清除彼此。
The observable universe would have had no chance of coming into being, as these opposing particles would have wiped each other out.
这种性质通常称为“螺旋性”， 可以用来区分中微子和它的反粒子。
This property, often called " helicity, 'serves to differentiate the neutrino from its antiparticle."
每个粒子都应该对应着一个反粒子，它们的质量和寿命完全相同，但带有相反的电荷。
For each particle there should be a corresponding antiparticle with exactly the same mass and lifetime but with an opposite electrical charge.
保罗·迪拉克理论已经得到实验验证，而且今天大范围的反粒子已经被发现。
Paul Dirac's theory has been experimentally verified and today a wide range of antiparticles have been detected.
科学家们还希望能将大片大片的反粒子云压缩为高密度的反粒子块，以便进行实际应用。
The scientists also want to compress large clouds of antiparticles into high-density clumps that can be tailored for practical applications.
当反粒子与相应粒子相遇，两种粒子都湮灭，相应的能量变为光子的辐射能。
When an antiparticle meets its corresponding particle, both are annihilated and the corresponding energy released as photons of radiant energy.
中微子振荡的复杂程度使人们认为有可能中微子振荡与其反粒子(即反中微子)是不同的。
This level of complexity opens the possibility that the oscillations of neutrinos and their anti-particles (called anti-neutrinos) could be different.
每一种亚原子粒子都有其反粒子。反粒子的各种性质与对应的粒子相同或相反。
Each subatomic particle has its antiparticle, its properties being equal and opposite to those of the particle.
物质和反物质的对称显示了每个粒子都存在着一个质量相同但电荷相反的反粒子。
The symmetry between matter and anti-matter implies that for every particle there exists an antiparticles with equal mass and opposite charge.
这道反粒子束就能为我们提供研究反粒子是如何是作用于普通物质并与之相互作用的全新途径。
These beams provide new ways to study how antiparticles interact or react with ordinary matter.
研究人员还在研究让反粒子迅速冷却至超低温的方法，这会让反粒子的运行减缓以便进行科学研究。
The researchers are also developing methods to cool antiparticles to super-cold temperatures so that the particles' movements are slowed and they can be studied.
从量子层面来说，空间中一直不断出现由一个正粒子和与其对应的反物质组成的反粒子虚偶。
At the quantum scale, virtual pairs consisting of a particle and its antimatter equivalent are constantly popping into existence.
但是，这并没有发生，有一个微小的偏差的一个额外的物质粒子，每百点零零零亿反粒子。
But this did not happen, there was a tiny deviation of one extra particle of matter for every 10 billion antimatter particles.
一种关于暗物质颗粒的观点认为：暗物质颗粒本身存在反粒子，这意味着它们互相接触后互相自行抵消。
One notion regarding dark matter particles suggests they have antiparticles, meaning they annihilate each other on contact.
极化的光子可以代替哈迪的思想试验中的粒子和反粒子，因为他们遵守同样的量子力学规则。
The polarised photons were able to take the place of the particle and the antiparticle in Dr Hardy's thought experiment because they obey the same quantum-mechanical rules.
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