2012/09/30 by Christoph Englert, Michael Spannowsky, Chris Wymant
Physics and Astronomy · #Black Holes and Theoretical Physics #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ex #hep-ph
paper · pdf · doi:10.1016/j.physletb.2012.11.008
8 pages, 6 figures; v2 typos, references, version published in PLB
openalex publication_date 2012/11/06 · arxiv created 2012/11/30 · arxiv updated 2012/12/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Both Atlas and CMS have reported a discovery of a Standard Model-like Higgs boson H of mass around 125 GeV. Consistency with the Standard Model implies the non-observation of non-SM like decay modes of the newly discovered particle. Sensitivity to such decay modes, especially when they involve partially invisible final states is currently beyond scrutiny of the LHC. We systematically study such decay channels in the form of H→ AA→ jets+missing energy, with A a light scalar or scalar, and analyze to what extent these exotic branching fractions can be constrained by direct measurements at the LHC. While the analysis is challenging, constraints as good as BR\lesssim 10% can be obtained.