A Strengthened QICT-Motivated Collider Closure for Compressed Higgsinos at 13 TeV: Public-Contour Recasting, Validated Detector Surrogate, and Falsifiable Branch Predictions

We present a strengthened collider-facing extension of the uploaded Quantum Information Copy Time (QICT) program to compressed Higgsino searches at \( \sqrt{s}=13 \) TeV. The underlying QICT manuscript identifies its theorem-level core as a copy-time definition \( \tau_\text{copy} \), a Liouvillian-squared susceptibility \( \chi^{(2)}_Q \), and a conserved-charge speed-limit bound; the infrared and phenomenological sections are explicitly conditional closures. We therefore do not claim a theorem-level Higgsino prediction. Instead, we construct a fully explicit QICT-to-collider closure map, validate a detector-level surrogate against public CMS and ATLAS compressed-Higgsino reach anchors, perform a quantitative public-contour recast, propagate dominant surrogate uncertainties, and isolate a new branch-transition observable \( B_{\ell t} = N_{\ell t} / (N_{\ell t} + N_{\text{track}}) \). Within this strengthened framework, the residual post-public-limit search prior remains two-branched: an ultra-compressed branch near \( m_{\tilde{\chi}_1^\pm} \approx 200-240 \) GeV with \( \Delta m^\pm \sim 0.35-0.9 \) GeV, and a few-GeV branch near \( m_{\tilde{\chi}_1^\pm} \simeq 150-220 \) GeV with \( \Delta m \simeq 2-6 \) GeV. The manuscript is deliberately modest about logical status, but it is now quantitative, reproducible, and falsifiable.