lambda-b baryon

lamb·da-b baryon

(lăm′də-bē′)

An electrically neutral baryon containing a bottom quark and having a mass about 11,000 times that of the electron and a mean lifetime of about 1.2 × 10^-12 second. Also called bottom lambda baryon.

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.

References in periodicals archive ?

Scientists with the LHCb experiment, located at the Large Hadron Collider near Geneva, have found hints of CP violation in the decays of a lambda-b baryon. When the lambda-b baryon decays, particles produced by the decay speed away at different angles and momenta for matter and antimatter versions of the baryon, the scientists report online September 16 at arXiv.org.

Evidence points to new form of matter-antimatter asymmetry

Specifically, the scientists detected differences in spatial orientation of decay products of a class of matter and antimatter particles called Lambda-b baryons.