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arXiv · 2512.17874

Probing new physics in the Boosted $HH \to b\bar{b}\gamma\gamma$ channel at the LHC

Mohamed Belfkir
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Abstract

This paper presents the first dedicated study of the boosted $HH \to b\bar{b}\gamma\gamma$ topology as a key probe of physics beyond the Standard Model (SM) in the high-energy double-Higgs boson regime. The analysis presented in this paper, focuses on two classes of new-physics scenarios: non-resonant deviations of the quartic gauge--Higgs interaction, parameterized by the coupling modifier $\kappa_{2V}$, and resonant enhancement arising from the decay of a heavy scalar state, modeled within a two-Higgs-doublet framework. We demonstrate that the boosted reconstruction category enhances sensitivity to beyond SM effects that populate the high-$m_{HH}$ tail, yielding improved constraints on $\kappa_{2V}$ and extending the discovery reach for heavy resonances.

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Mohamed Belfkir. 2025-12-19. Probing new physics in the Boosted $HH \to b\bar{b}\gamma\gamma$ channel at the LHC. https://doi.org/10.1103/ht57-rqz6

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