K meson

noun Physics.

kaon.
Also K-me·son [key-mee-zon, -son, -mez-on, -mes-on] /ˈkeɪˈmi zɒn, -sɒn, -ˈmɛz ɒn, -ˈmɛs ɒn/.

Origin of K meson

First recorded in 1950–55

Definition for k meson (2 of 2)

kaon
[ key-on ]
/ ˈkeɪ ɒn /

noun Physics.

a meson with strangeness +1 and either positive or zero electric charge, or its antiparticle, with strangeness −1 and either negative or zero electric charge. Symbol: K
Also called K meson, K-meson.

Origin of kaon

1955–60; ka- (spelling of name of letter k) + (mes)on

OTHER WORDS FROM kaon

ka·on·ic, adjective

British Dictionary definitions for k meson

kaon
/ (ˈkeɪɒn) /

noun

a meson that has a positive or negative charge and a rest mass of about 966 electron masses, or no charge and a rest mass of 974 electron masses Also called: K-meson

Word Origin for kaon

C20: ka representing the letter k + ( mes) on

Scientific definitions for k meson

kaon
[ kā′ŏn′ ]

Any of three unstable mesons, one having charge +1 and a mass of 966 electron masses, and two being electrically neutral, with a mass 974 electron masses. Their half-life is approximately 10-8 seconds, and they decay through the weak force. Their decay patterns suggest that CP invariance may be violated. Also called K-meson K particle See Table at subatomic particle.