NT29: eROSITA-RU Tidal Disruption Events as COCM P(k) Tracers — Preliminary Route 3 Analysis

This note applies the COCM Route 3 analysis protocol of NT28 to the eROSITA-RU tidal disruption event sample of Zhang et al. (2026): 47 confirmed TDEs at z in [0.05, 0.8] in the eastern Galactic hemisphere. Using a Landy-Szalay cosine-kernel estimator with random catalogues matching the survey geometry, we obtain I = P(2k_COCM)/P(k_COCM) = 1.125 and e_I = (I/1910)^(1/4.86) = 0.217 (point estimate only). However, P(k_COCM) < 0 in absolute terms, indicating that 47 sources are insufficient for a statistically reliable measurement. The COCM prediction I ~ 1910*e^4.86 ~ 10^-4 for e ~ 0.1 is orders of magnitude below the noise level — a decisive demonstration that sparse TDE tracers cannot probe P(k_COCM). Claim 7 (e > 0) remains Ab (Abierto). The analysis establishes the Landy-Szalay protocol for TDE tracers and confirms that the full DR1 cluster catalogue of NT28 (12,247 sources) is the correct path to a significant I measurement. Motivación observacional: Arcodia et al. 2021 (QPEs), Baldini et al. 2026 (QPEs + mini-flares), ESA/Hubble 2026 (M88 órbita elíptica).