Registry · Proposition
V.P168
tau-effective
formalized
V.P168 — Selectivity: Only A ≥ 7 Suppressed
Fiber suppression selective: A≤4 (p,n,D,³He,T,⁴He) unaffected; A=7 (⁷Be,⁷Li) suppressed by 1/3. No BBN products at A=5,6 (mass gaps).