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Can the Higgs still account for the g-2 anomaly?

Abu-Ajamieh, F and Vempati, SK (2023) Can the Higgs still account for the g-2 anomaly? In: International Journal of Modern Physics A, 38 (20).

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Official URL: https://doi.org/10.1142/S0217751X23500914


In this paper, we use an Effective Field Theory (EFT) approach to evaluate the viability of the Higgs to account for the g-2 anomaly. Although the SM contribution of the Higgs to the muon's magnetic dipole moment is negligible, using a bottom-up EFT, we show that given the current level of experimental limits on the Higgs sector, the Higgs can still yield a viable solution to the g-2 anomaly if its couplings to the rest of the SM particles are allowed to deviate from their SM predictions. Such a solution would only require an O(1) fine-tuning. Further, applying unitarity arguments, we show that such a solution would indicate a scale of New Physics (NP) of ∼ 5-8 TeV, which could be lowered to ∼ 3.4-4 TeV if the Higgs couplings to the W and Z are assumed to conform to their SM predictions. We show that such a scenario could yield significant enhancement to the di-Higgs production in muon colliders, thus providing further motivation for its consideration. A key takeaway of this study is to highlight the importance of measuring the μ¯μhh coupling in future experiments. © 2023 World Scientific Publishing Company.

Item Type: Journal Article
Publication: International Journal of Modern Physics A
Publisher: World Scientific
Additional Information: The copyright for this article belongs to the Authors.
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 22 Nov 2023 05:29
Last Modified: 22 Nov 2023 05:29
URI: https://eprints.iisc.ac.in/id/eprint/83205

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