LHC reports discovery of its first new particle
By JONATHAN AMOS - BBC NEWS SCIENCE & ENVIRONMENT
Added: Thu, 22 Dec 2011 20:17:39 UTC
The Large Hadron Collider (LHC) on the Franco-Swiss border has made its first clear observation of a new particle since opening in 2009.
The LHC has been built to investigate the fundamental building blocks of nature
It is called Chi_b (3P) and will help scientists understand better the forces that hold matter together.
The as-yet unpublished discovery is reported on the Arxiv pre-print server.
The LHC is exploring some of the fundamental questions in "big physics" by colliding proton particles together in a huge underground facility.
Detail in the sub-atomic wreckage from these impacts is expected to yield new information about the way the Universe is constructed.
The Chi_b (3P) is a more excited state of Chi particles already seen in previous collision experiments, explained Prof Roger Jones, who works on the Atlas detector at the LHC.
"The new particle is made up of a 'beauty quark' and a 'beauty anti-quark', which are then bound together," he told BBC News.
"People have thought this more excited state should exist for years but nobody has managed to see it until now.
"It's also interesting for what it tells us about the forces that hold the quark and the anti-quark together - the strong nuclear force. And that's the same force that holds, for instance, the atomic nucleus together with its protons and the neutrons."
Robert Wright - The Atlantic Comments
Hawking wasn't available to answer that question, but I did manage to have a long conversation with an American physicist who had also doubted the existence of the Higgs--Lawrence Krauss
Lawrence M. Krauss - New York Times Comments
A Blip That Speaks of Our Place in the Universe
Lawrence M. Krauss - The Daily Beast Comments
How the Higgs Boson Posits a New Story of our Creation
Johnathan Brown - The Independent Comments
As an atheist with no desire to upset believers, Professor Peter Higgs has always hated the idea of a God particle. He has never been keen on the nomenclature of the Higgs boson either – referring to it as "the particle named after me" on the rare occasions he gives an interview.
Chris Wickham - Reuters 0 Comments
(Reuters) - Scientists at Europe's CERN research centre have found a new subatomic particle, a basic building block of the universe, which appears to be the boson imagined and named half a century ago by theoretical physicist Peter Higgs.
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