particle physics

Les neutrinos et leur importance en astrophysique

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Les neutrinos et leur importance en astrophysique

EN BREF Les neutrinos sont des particules subatomiques presque sans masse. Ils n’ont pas de charge électrique, rendant leur identification complexe. Ils agissent comme messagers des phénomènes cosmiques. Les neutrinos proviennent d’événements énergétiques tels que les supernovae. Ils permettent une meilleure compréhension des phénomènes astrophysiques. Ces particules sont plus abondantes que la matière noire. L’astronomie … Read more

Antimatter: myth or reality?

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L'antimatière : mythe ou réalité ?

IN BRIEF Existence of antimatter: infinitesimal quantities in the universe Particles and antiparticles: fundamental symmetry Issue of matter-antimatter imbalance after the Big Bang Absence of antimatter: one of the greatest mysteries of the universe Production of antimatter in the laboratory, notably at CERN Exorbitant cost of antimatter: precious and rare substance Properties of antimatter: transformation … Read more

The physics behind particle accelerators

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La physique derrière les accélérateurs de particules

IN BRIEF Particle accelerators: essential devices for exploring nuclear physics and particle physics. CERN: home to the largest circular accelerator in the world. Use in various fields: fundamental research and science popularization. Current limitations: high cost, insufficient power, and fragility of existing accelerators. Past and ongoing experiments: exploration of elementary particles. Operation: acceleration of particle … Read more

Major discoveries of CERN and their significance

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Les découvertes majeures du CERN et leur signification

IN BRIEF 70 years of discoveries at CERN Discovery of W and Z bosons in 1983 Revolution in particle detection with the multi-wire proportional chamber in 1968 Significant impact on electroweak theory The Large Hadron Collider as a tool for fundamental exploration Advances in particle physics and their societal application Celebrations and new research projects … Read more

Current approaches for detecting dark matter

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Les approches actuelles pour détecter la matière noire

IN BRIEF Dark matter detection: innovative approach based on Josephson junctions. Exploration of gravitational waves to identify dark matter. Search for axions, potential candidates for dark matter, through their conversion to photons. Clear strategies: do, see it dissolve, or look for its tremors. Study of neutron stars, potential keys in detecting this invisible matter. Analysis … Read more

Elementary particles: quarks, leptons, and bosons

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Les particules élémentaires : quarks, leptons et bosons

IN BRIEF Elementary particles: fundamental units of matter. Quarks: components of protons and neutrons, grouped into hadrons. Leptons: particles like electrons, without color charge. Standard model: theoretical framework encompassing particles and their interactions. Bosons: mediators of fundamental forces (for example, the Higgs boson). Classification of particles into fermions (quarks and leptons) and bosons. Particle interaction: … Read more