The Higgs is a sub-atomic particle crucial to current theories of physics.

希格斯粒子是对当前的物理学理论有决计性的一种原子内的粒子。

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Because lead ions are composed of complete atomic nuclei - not just a single subatomic particle - their masses are far larger.

因为铅离子完全由原子核组成——而不仅仅只是一个单一的亚原子粒子(subatomic particle)——它们的质量要大得多。

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The neutron is a heavy particle, as atomic particles go. It weighs about as much as a proton and about 2000 times as much as the electron.

就原子粒子而言，中子是很重的粒子。它的重量与质子大体相等，大约是电子重量的。

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Some of their work involved X-rays produced by particle accelerators, devices that bring atomic particles into high energies.

VOA: special.2009.12.08

Although this might seem a little esoteric, discovery of this baryon provides further proof of the validity of the Standard Model of Particle Physics, and helps contribute to our understanding of atomic interactions.

FORBES: Large Hadron Collider Discovers Beautiful New Particle

Dr Kobayashi and Dr Maskawa, who were at Japan's High Energy Accelerator Research Organisation and Kyoto University respectively, described a type of symmetry breaking that predicted two new families of quarks, a sort of subatomic particle whose simplest members are the ingredients of the protons and neutrons that form atomic nuclei.

ECONOMIST: The 2008 Nobel science prizes