In particular, every type of particle of which matter is composed has an equal and opposite antiparticle composed of antimatter.

ECONOMIST: Particle physics

The Higgs is a fundamentally new type of elementary particle that we have never seen before.

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The Tevatron is also seeing the same type of interesting particle events as the LHC.

BBC: Higgs boson 'hints' also seen by US lab

The energy released in fusion is carried mostly by neutrons, a type of subatomic particle that has no electric charge and hence cannot be confined by the magnetic bottle.

ECONOMIST: Fusion power: Nuclear ambitions | The

Neutrino astronomy is hard because neutrinos (a type of electrically neutral elementary particle) are rarely absorbed by matter.

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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