Open directions

Work that is designed but parked, and where the remaining cost is.

• Angular (θ) extension: coupled partial-wave channels — research direction
• Potential factory: building model surfaces that match real molecules — options survey
• Optimization targets (measured)

• Angular (θ) extension: coupled partial-wave channels — research direction — the parked angular extension. Delivered on NO: Coupled partial waves in the NO shape resonance: does the fixed-l reduction hold?.

• Potential factory: building model surfaces that match real molecules — options survey — building model surfaces that match real molecules: the target hierarchy, the inverse-scattering options, the data sources, and one feasibility spike. The implementation is Potential factory — fitting model surfaces to target curves: round-tripped against N₂/NO/F₂, and delivered on O₂ (O₂ — the first fitted target); still open there are the T3 tier and the authors’ tables in place of the figures.

• Optimization targets (measured) — where the remaining hot paths are.