STRANGE

Strange (s): Heavier than up and down quarks, with a charge of -1/3

Mass: ~96 MeV/c²
Forms: Kaons (K⁺, K⁰), hyperons (e.g. Λ, Σ)
Decay: Weak interaction (to up or down)
Historical Note: Discovery led to the “strangeness” quantum number
Importance: Strange quarks are key in CP violation studies

Strange (s): and anti-strange (s̄)