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23 December, 2011

Large-Hadron-Collider-discovers-first-new-particle

European Center for Nuclear Research (CERN) scientists control computer screens showing traces on Atlas experiment of the first protons injected in the Large Hadron Collider (LHC) during its switch on operation in CERN's control room, near Geneva, Switzerland.

The Large Hadron Collider (LHC), famously engaged in the quest for the Higgs boson, has turned up a heavier variant of a sub-atomic particle first discovered a quarter-century ago, scientists reported Thursday.
The newcomer is called Chi-b(3P), which was uncovered in the debris from colliding protons, according to research published in the open-access online journal arXiv

Like the elusive Higgs and the photon, it is a boson, meaning it is a particle that carries force.
But while the Higgs is not believed to be made of smaller particles, the Chi-b(3) comprises two relatively heavy particles, the beauty quark and its antiquark.
They are bonded by the so-called "strong" force which also causes the atomic nucleus to stick together.
The Chi-b(3P) is a heavier version of a particle that was first observed around 25 years ago.
"The Chi-b(3P) is a particle that was predicted by many theorists, but was not observed at previous experiments," said James Walder, a British physicist quoted by the University of Birmingham in a press release.

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