Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector

The ATLAS collaboration

研究成果: Contribution to journalArticle査読

26 被引用数 (Scopus)

抄録

A search for decays of the Higgs boson into a pair of new spin-zero particles, H→aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σHSM)×B(H→aa→bbμμ), ranging from 1.2×10−4 to 8.4×10−4 in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbμμ final state for new physics, σvis(X)×B(X→bbμμ), ranging from 0.1 fb to 0.73 fb for mμμ between 18 and 62 GeV.

本文言語英語
ページ(範囲)1-21
ページ数21
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
790
DOI
出版ステータス出版済み - 3 10 2019

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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