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Geneva, 14 July 2015. Today, the LHCb experiment at CERN’s Large Hadron Collider has reported the discovery of a class of particles known as pentaquarks. The collaboration has submitted a paper reporting these findings to the journal Physical Review Letters.
“The pentaquark is not just any new particle,” said LHCb spokesperson Guy Wilkinson. “It represents a way to aggregate quarks, namely the fundamental constituents of ordinary protons and neutrons, in a pattern that has never been observed before in over fifty years of experimental searches. Studying its properties may allow us to understand better how ordinary matter, the protons and neutrons from which we’re all made, is constituted.”
Until Peter Higgs, Francois Englert and Robert Brout came along with their theory in 1964, the Standard Model was under threat because it could not explain how sub-atomic particles – and hence all matter in the Universe – have mass and therefore structure.
The proposition of a sub-atomic particle that creates a field through which other particles interact was the missing piece of the puzzle. It is this interaction between matter and the field created by the Higgs boson that imparts mass to matter. ………..
Scientists at the Large Hadron Collider have seen tantalising clues that may help to explain why the universe around us is made from matter rather than its opposite form antimatter.
Researchers hunting for antimatter at CERN, the city sized science complex where the LHC is based, have found that particles of matter decay differently from their antimatter cousins.
Current theories suggest that after the Big Bang that created the universe, there were equal amounts of matter and antimatter created.
By Hayley Dixon
11:04AM GMT 14 Mar 2013
CERN, the European Organisation for Nuclear Research, announced today that after extensive testing it was “looking more and more” like the particle which they discovered last year was the Higgs boson.
Finding the Higgs plugs a gaping hole in the Standard Model of physics, the theory that describes all the particles, forces and interactions that make up the universe.
Today the collaborating scientists from ATLAS and CMS announced their results at the Moriond
Conference, in La Thuile, Italy, further confirming the “magnificent” discovery.
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Scientists developing device to ‘hack’ into brain of Stephen Hawking Updated 06:42 PM Jun 26, 2012
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Last year, European particle physicists observed neutrinos apparently traveling faster than the speed of light. But now it seems that it was a bad measurement, which is no surprise to the physics community. ……..
By Trevor Quirk / February 24, 2012
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