sin 2β from J/ψ K_S; β, α, γ angles of unitarity triangle; CKM mechanism confirmed to few-percent; 2008 Nobel (Kobayashi–Maskawa).
sin 2β from J/ψ K_S; β, α, γ angles of unitarity triangle; CKM mechanism confirmed to few-percent; 2008 Nobel (Kobayashi–Maskawa).