Double Higgs Production with a Jet Substructure Analysis to Probe Extra Dimensions

TL;DR

This study investigates the potential to detect large extra dimensions via double Higgs production at various collider energies, utilizing jet substructure techniques to improve signal detection and set bounds on model parameters.

Contribution

It introduces a comprehensive analysis of double Higgs production with jet substructure methods to probe extra dimensions at different collider energies.

Findings

Bounds up to 6.1 TeV at 14 TeV

Bounds up to 12.5 TeV at 33 TeV

Bounds up to 28.1 TeV at 100 TeV

Abstract

In this paper, we perform a comprehensive study to probe the effects of large extra dimensions through double Higgs production in proton-proton collisions at the center-of-mass energies of 14, 33, 100 TeV. We concentrate on the channel in which both Higgs bosons decay into $b\bar{b}$ pair and take into account the main background contributions through realistic Monte-Carlo simulations. In order to achieve an efficient event reconstruction and a good background rejection, jet substructure techniques are used to efficiently capture the boosted Higgs bosons in the final state. The expected limits on the model parameters are obtained based on the invariant mass and the angular properties of the final state objects. Depending on the number of extra dimensions, bounds up to 6.1, 12.5, 28.1 TeV are set on the model parameter at proton-proton collisions with the center-of-mass energies of 14, 33, and 100 TeV, respectively.