Masses of Elementary Particles

C. van Gog, 24 September 2022

Elementary Particles of the Standard Model

I’m using my metric prefixes. I have also included the composite proton and neutron particles. Interesting fact: the higgs boson and top quark are heavier than a cesium and tungsten atom respectively!

Massless

  • $\gamma$, $g$: 0 g

Unknown Mass

  • $\nu_e$: < 3.92 uumg
  • $\nu_\mu$: < 303 unmg
  • $\nu_\tau$: < 27.6 emg

Unmg Particles

  • $e$: 911 unmg

Emg Particles

  • $u$: 3.9 emg
  • $d$: 8.4 emg
  • $s$: 170 emg
  • $\mu$: 188 emg

Omg Particles

  • $p$: 1.67 omg
  • $n$: 1.67 omg
  • $c$: 2.27 omg
  • $\tau$: 3.17 omg
  • $b$: 7.45 omg
  • $W$: 143 omg
  • $Z$: 163 omg
  • $H$: 223 omg
  • $t$: 308 omg