A kan Einstein ta ka'idar taro-makamashi daidai, wannan taro daidai da wani hutawa makamashi na 0.511 MeV. A rabo tsakanin taro na proton da cewa na wani electron ne game da 1836. Astronomical ma'aunai nuna cewa proton-to-electron taro rabo ya gudanar da wannan darajar, kamar yadda aka annabta da Standard Model, domin akalla rabin da shekaru na duniya. Electrons da wani lantarki cajin na −1.602×10−19 coombuls, wanda aka yi amfani da matsayin misali na naúrar ga subatomic barbashi, da kuma ake kira da asali naúrar. Wannan yana da wani m misali cajin na 2.210−8. A cikin iyakokin taro-makamashi daidaici, wannan taro daidai da wani hutawa makamashi makamashi na 0.511 MeV. A rabo tsakanin taro na proton da cewa na wani electron ne game da 1836. Astronomical ma'aunai nuna cewa proton-to-electron taro rabo ya gudanar da wannan darajar, kamar yadda aka annabta da Standard Model, domin akalla rabin da shekaru na duniya.
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