New Fundamental Particle Discovered?

It is often claimed that the Ancient Greeks were the first to identify objects that have no size, yet are able to build up the world around us through their interactions. And as we are able to observe the world in tinier and tinier detail through microscopes of increasing power, it is natural to wonder what these objects are made of.

We believe we have found some of these objects: subatomic particles, or fundamental particles, which having no size can have no substructure. We are now seeking to explain the properties of these particles and working to show how these can be used to explain the contents of the universe.

There are two types of fundamental particles: matter particles, some of which combine to produce the world about us, and force particles – one of which, the photon, is responsible for electromagnetic radiation. These are classified in the standard model of particle physics, which theorises how the basic building blocks of matter interact, governed by fundamental forces. Matter particles are fermions while force particles are bosons.

Scientists at the Large Hadron Collider may have just discovered a new fundamental particle that could change the way we look at the universe.

Is this Dark Energy? A giant Neutrino? The big brother of the Higgs Boson? Or could it be the mysterious Graviton? Matt also reveals the answer to the Dark Energy Challenge question and responds to comments from the Ice Age episode.

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