On Tuesday The European Organisation for Nuclear Research ( CERN) said that it has discovered a class of particles with its accelerator (LHC).
These pentaquarks whose existence was suspected but never confirmed by scientists are composed of quarks, namely the basic constituents of protons and neutrons, assembled in a configuration that, in more than fifty years of research experimental, had never been observed, “said one spokesman from the center, Guy Wilkinson.” The study of its properties may allow us to better understand how comprises ordinary matter, that is ie protons and neutrons which we are all composed ”
Since 3 June, after two years of maintenance and repairs, the LHC has begun a new phase of new experiences with an energy almost doubled compared to that achieved during the first operating period. This lasted three years and in 2012 confirmed the existence of the Higgs boson, which is considered the cornerstone of the fundamental structure of matter .
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