Wow, looks like there is more to come. This could be an endless journey as we get smaller and heaver particles.
Mystery particle may show the universe in a whole new light
In Cern, some light particles have been spotted where no light particles are meant to be — and the physicists are very excited indeed. If they keep on turning up for a few more months it can mean only one thing: the discovery of a particle more significant for science than the Higgs boson.
The light particles began life in December as a statistical blip, a few extra photons made by the particle smashers deep below Geneva. Physicists are accustomed to blips and thought little of it — in the process of bashing protons together at approaching the speed of light, a lot of statistical “noise” is created.
Over the months that followed, however, the blip persisted. It was seen separately, in independent experiments.
Now scientists think it could be the signature of a completely new particle that will offer a window into some of the universe’s greatest mysteries. If confirmed — they will know the answer by the summer — it will represent arguably the most significant discovery by Cern, the European organisation for nuclear research.
Since the confirmation of the Higgs boson, Cern’s particle accelerator has been smashing together protons at even higher energies. In doing so, the hope has been to create even heavier particles, so far unknown to science. Could this be one?
John Ellis, a King’s College physicist and former head of theory at Cern, said: “Until last week I’d been saying, ‘No, it probably doesn’t exist, we shouldn’t get too excited, etc etc. But last week the information solidified, it didn’t go away.”
The reason physicists are so excited is because if the particle exists, they haven’t a clue what it is. Tara Shears, professor of experimental particle physics at Liverpool University said: “Every particle physicist’s dream is to see something in the data they can’t explain. That’s the moment you challenge the existing theory.”
The problem with particle physics at the moment is that scientists know it is wrong. It can’t explain gravity of dark matter, the substance that makes up most of the mass in the universe. “We know particle physics can’t explain the universe,” said Professor Shears. “So we are looking for cracks in it. This is just a hint, but a hint that could grow.”
Professor Ellis concluded: “The night before the discovery of the Higgs boson, I had Peter Higgs to dinner and we opened a bottle of champagne. I can promise you if this particle proves to be real I’m going to be opening a whole truckload of champagne.”
http://www.thetimes.co.uk/tto/science/a ... 719161.ece