Preone (fisica)

Abbozzo
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I preoni sono delle particelle ipotetiche che si suppone siano privi di dimensioni e che costituiscano i quark e i leptoni.

Il termine, ed il collegato modello, furono proposti dai fisici Jogesh Pati e Abdus Salam nel 1974. Il momento di massimo interesse per il modello a preoni si ebbe intorno al 1980 poi, con la formulazione della teoria sulle superstringhe, l'interesse andò scemando, come per altri modelli analoghi, anche a causa della mancanza di conferme sperimentali nell'ambito degli esperimenti di collisione tra particelle elementari.

Nei primi anni del XXI secolo la sfiducia subentrata nei confronti del modello a superstringhe, sempre a causa della mancanza di conferme sperimentali, ha portato ad un rinnovato interesse per modelli alternativi come quello dei preoni.

Bibliografia

  • Pati, J. C.; Salam, A. (1974); https://prola.aps.org/abstract/PRD/v10/i1/p275_1[collegamento interrotto], Phys. Rev. D10, 275-289

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