W boson

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W boson

n.
Either of two charged intermediate vector bosons that have a positive or a negative charge and a mass about 157,350 times that of the electron and that mediate weak interactions in which the charges of participating particles change.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

W boson

n
(General Physics) physics another name for W particle
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at [square root of s] = 8 TeV.
Atlas has already identified what appear to be lower-mass W bosons from their "decay products" in collisions at the LHC.
In the last step, having sorted jets in [p.sub.T], several requirements are applied to find the best combination of subjets with two subjets giving the best W boson invariant mass and the whole three subjets to be consistent with the top quark invariant mass.