Mass-energy of the heaviest elementary particle

Radius of curvature of the Universe

4.8 MeV (d quark)

$2344HR=32350\times {10}^9\text{ly}$

128 MeV

$17HR=236\times {10}^9\text{ly}$

511 MeV

$2.14HR=29.5\times {10}^9\text{ly}$

848 MeV

$1HR=13.8\times {10}^9\text{ly}$