Discovery of a new class of particles at the LHC

Geneva, 14 PentaquarkJuly 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.”

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Supercomputer Passes Turing Test

Can a computer trick a human into thinking it’s actually a fellow human? That question gave birth to the “Turing Test” 65 years ago.

Eugene Goostman, a computer programme made by a team based in Russia, succeeded in a test conducted at the Royal Society in London. It convinced 33 per cent of the judges that it was human, a 13 years boy, said academics at the University of Reading, which organised the test. It is thought to be the first computer to pass the iconic test.

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  1. BBC
  2. The Independent
  3. The Telegraph

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P. Higgs and F. Englert win 2013 Nobel Prize for Physics

………….  The Higgs boson, a sub-atomic particle that pervades the Universe, is crucial to something called the Standard Model, which attempts to unite the building blocks of matter with three of the four known forces of nature – only gravity is left out.

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. ………..


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Where Has The Antimatter Gone: Physics at CERN

By Richard Gray, Science Correspondent of  The Telegraph

Large Hadron Collider: results hint at where all the antimatter has gone.

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.

However, when particles of matter meet their antimatter opposites, they annihilate each other with an explosion of energy. ………………..

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