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arxiv 2412.20525 v1 pith:H2V7N6QD submitted 2024-12-29 hep-ph hep-ex

classification hep-phhep-ex
keywords excessesmodelobjectscalarsaroundatlascannotcombined
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We provide a possible interpretation of excesses reported by ATLAS and CMS at around 95GeV, 650GeV and possibly 320GeV, in terms of CP-even scalars. In particular, the combined {\sl global} statistical significances of independent indications for a 650GeV object reach the $4\sigma$ level! While this seems sufficient incentive for a further investigation, this object cannot be fitted in tradional singlet or doublet extensions of the Standard Model. It requires by itself a larger extension with doubly-charged scalars, that naturally fits the two other excesses on top of the SM-like 125~GeV Higgs. We describe the minimal model and give some numerical illustrations.

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  1. Interpretation of 95 GeV Excess within the Georgi-Machacek Model in Light of Positive Definiteness Constraints

    hep-ph 2025-02 conditional novelty 5.0 of 10

    The Georgi-Machacek model keeps viable parameter space for the 95 GeV diphoton and bbbar excesses under positive definiteness constraints, which the paper finds expand the allowed region relative to tree-level bounded...

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