psi' particle

Science Dictionary
psi' particle   (sī'prīm', psī'-)  Pronunciation Key 
An electrically neutral meson having a mass 7,213 times that of the electron and a mean lifetime of approximately 1 × 10-20 seconds, composed, like the J/psi particle, of a charm-anticharm quark pair. See Table at subatomic particle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Explore Dictionary.com
Previous Definition: psi phenomenon
Next Definition: psi-particle
Words Near: psi' particle
More from Thesaurus.com
Synonyms and Antonyms for psi' particle
More from Reference.com
Search for articles containing psi' particle
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature