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    Cern: scientists discover four new particles - Forum

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    Forum moderator: arya, dethalternate  
    Forum » Main » Science, Astronomy, Nature » Cern: scientists discover four new particles
    Cern: scientists discover four new particles
    ManuDate: Tuesday, 09-March-2021, 6:23 PM | Message # 1
    --dragon lord--
    Group: undead
    Messages: 12621
    Status: Offline
    This month is a time to celebrate. Cern has just announced the discovery of four brand new particles at the Large Hadron Collider (LHC) in Geneva. This means that the LHC has now found a total of 59 new particles, in addition to the Nobel prize-winning Higgs boson, since it started colliding protons – particles that make up the atomic nucleus along with neutrons – in 2009. Excitingly, while some of these new particles were expected based on our established theories, some were altogether more surprising.

    The LHC’s goal is to explore the structure of matter at the shortest distances and highest energies ever probed in the lab – testing our current best theory of nature: the Standard Model of Particle Physics. And the LHC has delivered the goods – it enabled scientists to discover the Higgs boson, the last missing piece of the model. That said, the theory is still far from being fully understood.

    One of its most troublesome features is its description of the strong force which holds the atomic nucleus together. The nucleus is made up of protons and neutrons, which are in turn each composed of three tiny particles called quarks (there are six different kinds of quarks: up, down, charm, strange, top and bottom). If we switched the strong force off for a second, all matter would immediately disintegrate into a soup of loose quarks – a state that existed for a fleeting instant at the beginning of the universe.

    Don’t get us wrong: the theory of the strong interaction, pretentiously called “quantum chromodynamics”, is on very solid footing. It describes how quarks interact through the strong force by exchanging particles called gluons. You can think of gluons as analogues of the more familiar photon, the particle of light and carrier of the electromagnetic force.

    untotenawake
    Read more/full article/source - https://theconversation.com/cern-sc....-155800
     
    Forum » Main » Science, Astronomy, Nature » Cern: scientists discover four new particles
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