Scan-calibrated oscillatory feature analysis of Planck 2018 TT, TE, and EE spectra

This repository contains the full analysis outputs supporting the manuscript "A scan-calibrated search for a multi-spectrum oscillatory feature in Planck 2018 temperature and polarization data." The dataset includes: Joint and per-spectrum Δχ² scan surfaces over frequency, phase, and scale parameters Best-fit amplitude grids for TT, TE, and EE Empirical null distributions from 10⁵ Gaussian simulations used for global p-value calibration Permutation-based sign-coherence statistics Injection-recovery validation results Robustness tests across multipole cuts and template widths Deterministic even/odd holdout scan results The full Jupyter notebook implementing the analysis pipeline All simulations were generated under the Planck 2018 best-fit ΛCDM covariance model. The Planck data products themselves are publicly available from the Planck Legacy Archive and are not redistributed here.