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Searches for scalars at LHC and interpretation of the findings

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arxiv 2211.11723 v1 pith:PYZHPB27 submitted 2022-11-21 hep-ph hep-ex

classification hep-phhep-ex
keywords evidenceinterpretationsearchesextensionglobalmodelsscalarwhile
verification ladder T0 review T1 audit T2 compute T3 formal
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In view of the future Higgs factories, this work presents the status of scalar searches at the LHC with an emphasis on the H(650) resonance which has been observed in WW, ZZ and h(95)h(125) channels, with a cumulative evidence of about 7 s.d. global significance. Its interpretation in models, restricted to extension of the scalar sector by SU(2) singlets and doublets, is clearly excluded, while its interpretation in models with additional triplets requires an extension with respect to the conventional Georgi-Machacek model. A general picture of these searches is updated, showing that h(95) is also reaching a similar level of evidence while two other candidates, A(400) and h(151), although less prominent, are above the 4 s.d. global evidence.

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  1. Light Scalars in the Extended Georgi-Machacek Model

    hep-ph 2025-06 conditional novelty 6.0 of 10

    A global fit of the Georgi-Machacek and extended Georgi-Machacek models finds that the 95 GeV diphoton and bottom-quark excesses are compatible with the 125 GeV Higgs data, while the ditau excess is not, and it sets u...

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