The scale of new physics from the Higgs couplings to

Fayez Abu-Ajamieh (Center for High Energy Physics (CHEP), Indian Institute of Science (IISc), C.V. Raman Avenue, Bangalore 560012, India)

Measuring the Higgs couplings accurately at colliders is one of the best routes for finding physics Beyond the Standard Model (BSM). If the measured couplings deviate from the SM predictions, then this would give rise to energy-growing processes that violate tree-level unitarity at some energy scale, indicating new physics. In this paper, we extend previous work on unitarity bounds from the Higgs potential and the Higgs couplings to vector bosons, the top quark, γγ and γZ; to the Higgs coupling to gg. We show that the scale of new physics could be as low as ∼10 TeV, which although beyond the reach of the LHC, is well within the reach of the future 100-TeV collider, and can also be probed indirectly in the High Luminosity LHC (HL-LHC).

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      "value": "Measuring the Higgs couplings accurately at colliders is one of the best routes for finding physics Beyond the Standard Model (BSM). If the measured couplings deviate from the SM predictions, then this would give rise to energy-growing processes that violate tree-level unitarity at some energy scale, indicating new physics. In this paper, we extend previous work on unitarity bounds from the Higgs potential and the Higgs couplings to vector bosons, the top quark, \u03b3\u03b3 and \u03b3Z; to the Higgs coupling to gg. We show that the scale of new physics could be as low as \u223c10 TeV, which although beyond the reach of the LHC, is well within the reach of the future 100-TeV collider, and can also be probed indirectly in the High Luminosity LHC (HL-LHC)."
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Published on:
22 August 2022
Publisher:
Elsevier
Published in:
Physics Letters B , Volume 833 C (2022)

Article ID: 137389
DOI:
https://doi.org/10.1016/j.physletb.2022.137389
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: