Search for Higgs boson decays into a pair of light bosons in the <i>bbμμ</i> final state in pp collision at √s = 13 TeV with the ATLAS detector
A search for decays of the Higgs boson into a pair of new spin-zero particles, <i>H → aa</i>, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb<sup>−1</sup> of proton–proton collision data at √s = 13 TeV recorded by the ATLAS...
| Autores: | , , , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | Argentina |
| Recursos: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/79871 |
| Acesso em linha: | http://sedici.unlp.edu.ar/handle/10915/79871 |
| Access Level: | acceso abierto |
| Palavra-chave: | Ciencias Exactas Física Higgs boson Partículas Elementales ATLAS detector |
| Resumo: | A search for decays of the Higgs boson into a pair of new spin-zero particles, <i>H → aa</i>, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb<sup>−1</sup> 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 (σ<sub>H</sub> /σ<sub>SM</sub>)×B(<i>H → aa → bbμμ</i>), ranging from 1.2×10<sup>−4</sup> to 8.4×10<sup>−4</sup> 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 <i>bbμμ</i> final state for new physics, σ<sub>vis</sub>(X) × B(<i>X → bbμμ</i>), ranging from 0.1 fb to 0.73 fb for m<sub>μμ</sub> between 18 and 62 GeV. |
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