# UTFANSWF QCD Nucleon Response-Curve Grid — FROZEN
Date: 2026-08-19 America/New_York
Freeze point: before evaluating the response grid and before any external comparison.

Using the same frozen v23 isoQCD fit and AICc model averaging, evaluate continuum fixed-sqrt(t0) nucleon-mass shifts relative to the frozen physical quark point for:

- M_ud fractional shifts: -10%, -5%, -1%, +1%, +5%, +10%, with M_s fixed.
- M_s fractional shifts: -10%, -5%, -1%, +1%, +5%, +10%, with M_ud fixed.
- common M_ud and M_s shifts: -10%, -5%, -1%, +1%, +5%, +10%.

No external nucleon mass-response or sigma-term values are consulted before outputs are frozen.
