Kuenzanisa pakati pezvakawanda zveproton uye izvo zve electron iri pamusoro pe 1836. Kuenzanisa kwenyeredzi kunoratidza kuti proton-to-electron mass ratio yakabata kukosha kwakafanana, sezvinotarisirwa ne Standard Model, kwehafu yezera rechisiko. Electron ine magetsi emagetsi e-1.602×10−19 coombs, iyo inoshandiswa seyakajairwa yuniti yezvinhu zve subatomic, uye inonziwo elementary elementary. Izvi zvine chiyero chisina chokwadi chechimiro che2.10−8. Mukati memiganhu ye mass <unk> energy equivalency, iyi mass inoenderana nesimba rekuzorora re 0.511 MeV. Chiyero pakati peproton uye iyo ye electron iri pamusoro pe 1836. Kuenzanisa kwenyeredzi kunoratidza kuti proton-to-electron mass ratio yakabata kukosha kwakafanana, sekufungidzirwa ne Standard Model, kweinenge hafu yezera rechisiko.
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