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Z-zero particle

[zee-zeer-oh] /ˈziˈzɪər oʊ/
noun, Physics.
1.
one of three particles, called intermediate vector bosons, that are believed to transmit the weak force. Symbol: Z 0.
Also called Z particle, Z boson.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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z bosons in Science
Z boson  
An electrically neutral subatomic particle that mediates the weak nuclear force. The Z boson has a mass 182,000 times that of the electron. Unlike the other weak force mediator (the W boson), it does not change particles it interacts with into other types of particles. Like the photon, the Z boson is its own antiparticle. See Table at subatomic particle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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