---
格式版本: 2
标题: "TauPolaris: reconstructing tau lepton polarimetric vectors with conditional normalizing flows"
原文链接: "https://arxiv.org/abs/2608.10961"
发布日期: "2026-08-11"
发布时间校准状态: "found"
发布时间需复核: "否"
发布时间来源: "rule:local:strict_original_body"
发布时间证据: "**\\[v1\\]** Tue, 11 Aug 2026 14:28:19 UTC (435 KB)"
发布时间校准原因: "规则确认唯一严格发布时间，来源 local:strict_original_body"
发布时间校准置信度: "high"
发布时间候选数量: 18
发布时间严格候选数量: 6
发布时间原页读取状态: "source template page reused from URL open"
发布时间未找到原因: ""
发布时间校准时间: "2026-08-12T11:20:58+08:00"
发布时间仲裁状态: "skipped"
发布时间仲裁尝试次数: 0
发布时间仲裁耗时毫秒: 0
发现时间: "2026-08-12T11:16:29+08:00"
入库时间: "2026-08-12T03:20:58.683Z"
来源平台: "arXiv 学术论文搜索"
搜索渠道: "source_template"
搜索词: "https://arxiv.org/search/?query=performance&searchtype=all"
匹配关键词:
  - "performance"
相关厂家:
  []
相关专家:
  []
内容类型: "网页"
抓取工具: "Free Fetch + Defuddle"
清洗工具: "Defuddle Markdown + Defuddle/Readability 正文提取"
原始附件:
  []
AI优质: "否"
AI打分: 10
AI分档: "非优质"
AI质检状态: "不通过"
AI打分理由: "论文内容为高能物理中的tau轻子极化矢量重建，与超节点、AI Rack等机柜级AI基础设施完全无关。"
AI质检模型: "ali-deepseek-v4-flash"
AI质检时间: "2026-08-12T11:21:07+08:00"
AI主题相关性: 0
AI来源权威性: 5
AI新颖性: 0
AI技术细节: 0
AI商业部署信号: 0
AI完整性: 5
采集批次: "2026年8月12日2点04分20秒"
采集批次ID: "20260812-020420-289"
去重键: "https://arxiv.org/abs/2608.10961"
---

## High Energy Physics - Phenomenology

## Title:TauPolaris: reconstructing tau lepton polarimetric vectors with conditional normalizing flows

Authors:[Daniel Winterbottom](https://arxiv.org/search/hep-ph?searchtype=author&query=Winterbottom,+D), [Lucas Russell](https://arxiv.org/search/hep-ph?searchtype=author&query=Russell,+L)

[View PDF](https://arxiv.org/pdf/2608.10961) [HTML (experimental)](https://arxiv.org/html/2608.10961v1)

> Abstract:The kinematics of tau lepton decay products depend on the tau spin, giving access to the spin correlations and CP structure of the process that produced them. The optimal spin observable is the polarimetric vector, which points along the most likely direction of the tau spin. Determining it requires the momenta of the neutrinos produced in the tau decays, which escape detection and must therefore be inferred. We present TauPolaris, a tool for reconstructing tau polarimetric vectors by estimating the undetected neutrino momenta with a conditional normalizing flow. Rather than performing a point regression, the method models the full conditional density of the neutrino kinematics, providing both the most likely configuration for each event and an estimate of its uncertainty. The resolution of the reconstructed spin observables improves on that obtained from networks trained with a mean-squared-error loss. Using simulated LHC proton-proton collisions, including detector resolution effects, we demonstrate the method in three applications. For tau leptons produced in Higgs boson decays, we show that the presence of quantum entanglement can be distinguished from its absence with a significance of at least $4.3\sigma$ at the High-Luminosity LHC. We demonstrate an 18% improvement in the sensitivity to CP violation in $H\rightarrow\tau\tau$ decays. Finally, we introduce new variables for suppressing the $Z\rightarrow\tau\tau$ background in Higgs boson searches.

| Subjects: | High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex) |
| --- | --- |
| Cite as: | [arXiv:2608.10961](https://arxiv.org/abs/2608.10961) \[hep-ph\] |
|  | (or [arXiv:2608.10961v1](https://arxiv.org/abs/2608.10961v1) \[hep-ph\] for this version) |
|  | [https://doi.org/10.48550/arXiv.2608.10961](https://doi.org/10.48550/arXiv.2608.10961) |

## Submission history

From: Daniel Winterbottom \[[view email](https://arxiv.org/show-email/7784a30b/2608.10961)\]  
**\[v1\]** Tue, 11 Aug 2026 14:28:19 UTC (435 KB)

[Which authors of this paper are endorsers?](https://arxiv.org/auth/show-endorsers/2608.10961) | Disable MathJax ([What is MathJax?](https://info.arxiv.org/help/mathjax.html))
