follow Dictionary.com

11 Trending Words of 2014

baryon number

noun, Physics.
1.
a quantum number assigned to elementary particles, baryons having baryon number 1, antibaryons −1, and all other observable particles 0; quarks have baryon number 1/3 and antiquarks −1/3.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
baryon-number in Science
baryon number  
A quantum number equal to the number of baryons in a system of subatomic particles minus the number of antibaryons. Baryons have a baryon number of +1, while antibaryons have a baryon number of -1. Quarks and antiquarks have baryon numbers of + 1/3 and - 1/3 , respectively (baryons consists of three quarks). Mesons, bosons, and leptons all have baryon numbers of 0. Although the baryon number has always remained unchanged in reactions observed in experiments, it is postulated that in interactions that take place under conditions of very high energies (as during the formation of the universe, for example), proton decay may take place, and baryon number conservation may be violated. See also isospin, strangeness.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for baryon number

Few English speakers likely know this word

Word Value for baryon

11
12
Scrabble Words With Friends

Quotes with baryon-number