IE cosmology vs ΛCDM: posterior MCMC chains, likelihood scripts and reproducible notebook (v1)

This deposit contains the posterior MCMC chains (HDF5), the comparison notebook, and the case-specific likelihood/cosmology scripts used for a strict like-for-like comparison between the Iterative Energetics (IE) cosmology and ΛCDM using late-time data only: Pantheon+/SH0ES SNe (STAT+SYS in the eigen-basis) and BOSS DR12 compressed BAO. The goal is full reproducibility of the analysis and the statistical summaries/figures. Contents • IE_vs_LambdaCDM_MCMC_chains_v1.zip • cases/ (Baseline, WideTS, OmFree, CheckCMB) with .h5 chains for IE and ΛCDM • notebooks/CosmoModelCompare.ipynb (post-processing & figures) • results/ (reproduced outputs) • IE_vs_LambdaCDM_helper_files_v1.zip • README.md (reproduction guide) • requirements.txt, environment.yml • LICENSE (MIT for code), LICENSES/CC0-1.0.txt (data) • CITATION.cff • (optional) IE_vs_LambdaCDM_LaTeX_sources_v1.zip — LaTeX sources and figures for the preprint. Reproducibility (quick start) 1. Create the environment: conda env create -f environment.yml(or) pip install -r requirements.txt. 2. Open notebooks/CosmoModelCompare.ipynb. 3. Select a case directory (e.g., cases/Baseline/PriorPlanck/…) and run all cells.The notebook locates the .h5 chains and reproduces diagnostic tables (WAIC/PSIS-LOO, AIC/BIC/DIC, blockwise χ²) and the comparison figures used in the manuscript. Licensing • Code & notebooks: MIT License. • Data products (chains, figures, CSVs): CC0 1.0 Universal.The record-level Zenodo license applies to the dataset entry; file-level licenses are included in the repository and prevail for those files. Recommended citation Prieto López, C. (2025). IE cosmology vs ΛCDM: posterior MCMC chains, likelihood scripts and reproducible notebook (v1). Zenodo. [e-mail] Keywordscosmology; ΛCDM; dark energy; supernovae; BAO; Pantheon+; BOSS DR12; H₀; MCMC; emcee; ArviZ; WAIC; PSIS-LOO.本数据集包含用于仅使用晚期宇宙学数据——即Pantheon+/SH0ES Ia型超新星（本征基下采用STAT+SYS误差框架）与BOSS DR12压缩重子声学振荡（BAO）——对迭代能量学（Iterative Energetics, IE）宇宙学模型与Λ冷暗物质（ΛCDM）模型进行严格逐类比对所用的后验马尔可夫链蒙特卡洛（Markov Chain Monte Carlo, MCMC）链（HDF5格式）、比对用Jupyter Notebook脚本以及针对各案例的似然/宇宙学计算脚本，旨在实现分析过程、统计总结与可视化结果的完全可复现。 内容清单 • IE_vs_LambdaCDM_MCMC_chains_v1.zip • cases/ 目录（包含Baseline、WideTS、OmFree、CheckCMB四种案例，各案例均存储IE与ΛCDM模型的.h5格式MCMC链文件） • notebooks/CosmoModelCompare.ipynb（后处理与绘图脚本） • results/ 目录（存储复现得到的输出结果） • IE_vs_LambdaCDM_helper_files_v1.zip • README.md（复现操作指南） • requirements.txt、environment.yml • LICENSE（代码采用MIT许可证）与LICENSES/CC0-1.0.txt（数据采用CC0 1.0通用公共协议） • CITATION.cff • （可选）IE_vs_LambdaCDM_LaTeX_sources_v1.zip — 预印本所用的LaTeX源代码与绘图文件 可复现性（快速入门） 1. 创建运行环境：执行conda env create -f environment.yml（或使用pip install -r requirements.txt安装依赖）。 2. 打开notebooks/CosmoModelCompare.ipynb文件。 3. 选择目标案例目录（例如cases/Baseline/PriorPlanck/…）并运行所有单元格。本Notebook将自动定位.h5格式MCMC链文件，复现论文中所用的诊断表格（WAIC/PSIS-LOO、AIC/BIC/DIC、分块χ²检验结果）与比对绘图。 授权协议 • 代码与Notebook脚本：采用MIT许可证。 • 数据产物（MCMC链、绘图文件、CSV表格）：采用CC0 1.0通用公共协议。本数据集在Zenodo平台的记录级授权规则同样适用，仓库内包含的文件级授权协议将对对应文件优先生效。 推荐引用格式 Prieto López, C. (2025). IE cosmology vs ΛCDM: posterior MCMC chains, likelihood scripts and reproducible notebook (v1). Zenodo. 联系方式 [e-mail] 关键词 宇宙学；Λ冷暗物质（ΛCDM）；暗能量；超新星；重子声学振荡（BAO）；Pantheon+；BOSS DR12；哈勃常数（H₀）；马尔可夫链蒙特卡洛（MCMC）；emcee；ArviZ；WAIC；PSIS-LOO。