Particule Elementare
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Particule Elementare

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Particule Elementare Particule Elementare Presentation Transcript

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  • Particulele elementare se clasifica dupa valoarea numarului cuantic de spin si dupa valoarea masei de repaus. Particulele cu numar cuantic de spin semi-intreg pot fi descrise de statistica Fermi-Dirac si sunt denumite fermioni , iar cele cu numar cuantic de spin intreg sau zero sunt descrise de statistica Bose-Einstein si sunt numite bosoni . Dupa valoarea masei de repaus se clasifica in particule fara masa de repaus, particule usoare ( leptoni ), particule grele ( barioni ) si particule cu masa intermediara ( mezoni ). Exista si o clasificare din punct de vedere al interactiunilor: particulele carora le sunt caracteristice interactiunile tari sunt numite adroni (aici intra barionii - protoni,neutroni,hiperoni- si mezonii). Leptonii sunt cei care nu participa la interactiunile tari. Fiecarui lepton cu sarcina ii corespunde o particula neutra - neutrin
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  • Realizat de Haidautu Patricia