Scholarlink

<p>We explore the discovery potential for lepton flavor-violating Higgs boson decays, <i>h</i> → <i>ℓ</i><sub><i>i</i></sub><i>ℓ</i><sub><i>j</i></sub> (<i>ℓ</i><sub><i>i</i></sub> ≠ <i>ℓ</i><sub><i>j</i></sub>; <i>ℓ</i> = <i>e, μ, τ</i>), in proton-proton collisions. The analysis is performed within a Froggatt-Nielsen framework, which offers a well-motivated theoretical mechanism for such processes. By performing a systematic scan over the phenomenologically viable parameter space, we identify regions that can yield observable signatures at the High-Luminosity LHC (HL-LHC). For an integrated luminosity of ℒ<sub>int</sub> ≳ 1000 fb<sup><i>−</i>1</sup>, we project that the channels <i>h</i> → <i>eμ</i> and <i>h</i> → <i>τμ</i> (with <i>τ</i><sup><i>±</i></sup> → <i>π</i><sup><i>±</i></sup><i>ν</i><sub><i>τ</i></sub>) could reach the 5<i>σ</i> discovery threshold, while <i>h</i> → <i>τe</i> remains inaccessible even at 3000 fb<sup><i>−</i>1</sup>. Our results highlight the unique capability of the HL-LHC to probe new physics through searches for rare Higgs decays.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Lepton flavor violation in Higgs boson decays at the HL-LHC

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年4月15日

查看全文
  • Marco A. Arroyo-Ureña,
  • Edwin A. Herrera-Chacón,
  • Iran Melendez-Hernández,
  • Sebastian Rosado-Navarro

摘要

We explore the discovery potential for lepton flavor-violating Higgs boson decays, h → ℓiℓj (ℓi ≠ ℓj; ℓ = e, μ, τ), in proton-proton collisions. The analysis is performed within a Froggatt-Nielsen framework, which offers a well-motivated theoretical mechanism for such processes. By performing a systematic scan over the phenomenologically viable parameter space, we identify regions that can yield observable signatures at the High-Luminosity LHC (HL-LHC). For an integrated luminosity of ℒint ≳ 1000 fb−1, we project that the channels h → eμ and h → τμ (with τ± → π±ντ) could reach the 5σ discovery threshold, while h → τe remains inaccessible even at 3000 fb−1. Our results highlight the unique capability of the HL-LHC to probe new physics through searches for rare Higgs decays.