lambda-b particle

American  

noun

lambda-b particles plural

1. a baryon with a neutral charge, a mass 11,000 times that of the electron, and a mean lifetime of approximately 1.1 × 10^-12 seconds.

---

lambda-b particle Scientific  

/ lăm′də-bē′ /

1. An electrically neutral baryon having a mass 11,000 times that of the electron and a mean lifetime of approximately 1.1 × 10 ^{- 12} seconds.

2. See Table at subatomic particle

---