Particle physicists were then forced to revise their theories about neutrinos, which they had long thought were massless particles.
粒子物理学家随后被迫修改他们关于中微子的理论，他们长期以来一直认为中微子是无质量粒子。
| 单词 | Massless particle |
| 释义 |
Massless particle
原声例句
经济学人 Science and technology Particle physicists were then forced to revise their theories about neutrinos, which they had long thought were massless particles. 粒子物理学家随后被迫修改他们关于中微子的理论，他们长期以来一直认为中微子是无质量粒子。 时间简史（原版） The electromagnetic attraction is pictured as being caused by the exchange of large numbers of virtual massless particles of spin 1, called photons. 电磁吸引力被描绘成由大量自旋为 1 的虚拟无质量粒子（称为光子）交换引起。
英语百科
Massless particleIn particle physics, a massless particle is a particle whose invariant mass is theoretically zero. As of 2015 the two known massless particles were gauge bosons: the photon (carrier of electromagnetism) and the gluon (carrier of the strong force). However, gluons are never observed as free particles, since they are confined within hadrons. Neutrinos were, until recently, thought to be either massless or have a small mass. However, because neutrinos change flavour as they travel, at least two of the types of neutrinos must have mass. This was proven by Canadian scientist Arthur B. McDonald and Japanese scientist Takaaki Kajita, which resulted in their sharing of the Nobel prize in Physics 2015. |
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