Bradyon

Bradyon

A tardyon or bradyon is a particle that travels slower than light. Therefore this is a synonym with a massive particle (i.e. a particle having a non-zero mass). This includes all known particles (except luxons). The term "tardyon" is constructed to contrast with "tachyon", which refers to hypothetical particles that travel faster than light. Tardyons cannot break the light-speed barrier.

Tardyons have real masses, whereas luxons have zero (both real and imaginary) mass. Tachyons have an imaginary mass

The words "tardyon" and "bradyon" are neologisms and are not yet in wide use, even within the field of physics.


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Bradyon — Un bradyon ou tardyon (de brady lent en grec) est une particule élémentaire qui se déplace à une vitesse inférieure à c (vitesse de la lumière dans le vide, cette précision étant généralement sous entendue). Tardyon et bradyon sont des… …   Wikipédia en Français

  • bradyon — noun A tardyon …   Wiktionary

  • Tardyon — Bradyon Un bradyon ou tardyon (de brady lent en grec) est une particule élémentaire qui se déplace à une vitesse inférieure à c (vitesse de la lumière dans le vide, cette précision étant généralement sous entendue). Tardyon et bradyon sont des… …   Wikipédia en Français

  • Massive particle — A bradyon, also known as a tardyon or ittyon,[1] is a particle that travels slower than light.[2] All known particles that have mass are bradyons. The term bradyon , from Greek: βραδύς (bradys, “slow”), was coined to contrast with tachyon , from… …   Wikipedia

  • Tachyon — A tachyon (from the Greek polytonic|ταχυόνιον, takhyónion , from polytonic|ταχύς, takhýs , i.e. swift, fast) is any hypothetical particle that travels at faster than light speed. The first description of tachyons is attributed to German physicist …   Wikipedia

  • List of particles — This is a list of the different types of particles, known and hypothesized. For a chronological listing of subatomic particles by discovery date, see Timeline of particle discoveries. This is a list of the different types of particles found or… …   Wikipedia

  • Superbradyon — Superbradyons are a new class of superluminal particles. Unlike tachyons, they would have positive real values for both mass and energy. The term, as well as the existence of such particles, was suggested by Luis Gonzalez Mestres as an antonym to …   Wikipedia

  • Representation theory of the Galilean group — In nonrelativistic quantum mechanics, an account can be given of the existence of mass and spin as follows:The spacetime symmetry group of nonrelativistic quantum mechanics is the Galilean group. In 3+1 dimensions, this is the subgroup of the… …   Wikipedia

  • Liste De Particules — Cet article est une liste de particules en physique des particules, incluant les particules élémentaires actuellement connues et hypothétiques, ainsi que les particules composites qui peuvent être construites à partir d elles. Sommaire 1… …   Wikipédia en Français

  • Liste de particules — Cet article est une liste de particules en physique des particules, incluant les particules élémentaires actuellement connues et hypothétiques, ainsi que les particules composites qui peuvent être construites à partir d elles. Sommaire 1… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”