Massive particle

The physics technical term massive particle refers to a massful particle which has real non-zero rest mass (such as baryonic matter), the counter-part to the term massless particle. According to special relativity, the velocity of a massive particle is always less than the speed of light.[1] When highlighting relativistic speeds, the synonyms bradyon (from Greek: βραδύς, bradys, “slow”), tardyon[2] or ittyon[3] are sometimes used to contrast with luxon (which moves at light speed) and hypothetical tachyon (which moves faster than light).

  1. ^ Cite error: The named reference Folman1995 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Gardner1980 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Bilaniuk1969 was invoked but never defined (see the help page).