def
definition
def or abbrev
b0_qcd
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formal statement (Lean)
53noncomputable def b0_qcd (n_f : ℕ) : ℝ := 11 - 2 * n_f / 3
proof body
Definition body.
54
55/-- For the SM with n_f = 6: b₀ = 7 > 0 (asymptotic freedom). -/