Claim Verification: "The mean neutron lifetime measured in beam experiments is more than 1 second shorter than the lifetime obtained from ultracold-neutron bottle experiments." — Disproved

Automated fact-verification of the claim: "The mean neutron lifetime measured in beam experiments is more than 1 second shorter than the lifetime obtained from ultracold-neutron bottle experiments." Verdict: DISPROVED Key Findings The beam experiment world average for the neutron lifetime is 887.7 +/- 2.2 seconds (B1). The bottle (ultracold neutron) experiment world average is 878.5 +/- 0.8 seconds (B1). The difference (beam minus bottle) is +9.2 seconds (A1) — beam experiments measure a longer lifetime, not a shorter one. The claim asserts the opposite direction: that beam is shorter. This is false by approximately 10 seconds. Files proof.py — Re-runnable Python verification script proof.md — Structured proof report proof_audit.md — Full verification audit trail proof_narrative.md — Plain-language summary proof.json — Machine-readable structured data Generated by Proof Engine v0.10.0.针对下述声明开展自动化事实核查："束流实验（beam experiments）测得的中子平均寿命比超冷中子瓶实验（ultracold-neutron bottle experiments）所得结果短1秒以上。" 结论：已证伪 关键发现 束流实验中子寿命的全球平均测量值为887.7 ± 2.2秒（B1）。 超冷中子瓶实验的全球平均测量值为878.5 ± 0.8秒（B1）。 两者差值（束流实验值减去瓶实验值）为+9.2秒（A1）——即束流实验测得的寿命更长，而非更短。 该声明主张的方向恰好相反，即认为束流实验的寿命更短，该声明与事实偏差约10秒。 文件列表 proof.py — 可重复运行的Python验证脚本 proof.md — 结构化验证报告 proof_audit.md — 完整验证审核轨迹 proof_narrative.md — 通俗语言总结报告 proof.json — 机器可读结构化数据 本验证由Proof Engine v0.10.0生成。