One Drop model, Chapter 0: the one-sided limit — reproduction package (CLASS implementation, benchmarks, MCMC)

This record is Chapter 0 of the One Drop model. It preserves the one-sided (single power-law) precursor of the model together with its complete reproduction package: the modified CLASS implementation, benchmarks, and MCMC analysis. Its main result, Ω_HD < 7.1×10⁻⁴ (95% CL), measures a boundary: a gated component carried by a single power-law branch must be small. That boundary led to the paired form of the model (doi:10.5281/zenodo.22111202). The two records are complementary.

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-10-02
DOI
https://doi.org/10.5281/zenodo.20774068
Primary Topic
Galaxies: Formation, Evolution, Phenomena
Type
preprint
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preprint

One Drop model, Chapter 0: the one-sided limit — reproduction package (CLASS implementation, benchmarks, MCMC)

Taro SEKI
Zenodo (CERN European Organization for Nuclear Research)
Galaxies: Formation, Evolution, Phenomena
preprint

One Drop model, Chapter 0: the one-sided limit — reproduction package (CLASS implementation, benchmarks, MCMC)

Taro SEKI
preprint en

Abstract

This record is Chapter 0 of the One Drop model. It preserves the one-sided (single power-law) precursor of the model together with its complete reproduction package: the modified CLASS implementation, benchmarks, and MCMC analysis. Its main result, Ω_HD < 7.1×10⁻⁴ (95% CL), measures a boundary: a gated component carried by a single power-law branch must be small. That boundary led to the paired form of the model (doi:10.5281/zenodo.22111202). The two records are complementary.

Zenodo (CERN European Organization for Nuclear Research)
Galaxies: Formation, Evolution, Phenomena
DOIOpen Access PDFOpenAlex
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One Drop model, Chapter 0: the one-sided limit — reproduction package (CLASS implementation, benchmarks, MCMC) — Taro SEKI · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS