eta-c meson

[ ey-tuh-see, ee-tuh- ]
/ ˈeɪ təˈsi, ˈi tə- /

noun Physics.

a neutral meson having a mass 5832 times that of the electron and a mean lifetime of approximately 3.1 × 10-22 seconds.

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Also called eta-c particle.

Words nearby eta-c meson

eta, eta aquarids, eta carinae, eta meson, eta particle, eta-c meson, eta-c particle, etaerio, etalon, etamine, etaoin shrdlu
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Scientific definitions for eta-c particle

eta-c particle
[ ā′tə-sē′, ē′tə- ]

An electrically neutral meson having a mass 5,832 times that of the electron and a mean lifetime of approximately 3.1 X 10-22 seconds. See Table at subatomic particle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.