Quantum Critical Higgs: From AdS$_5$ to Colliders

TL;DR

This paper explores distinctive collider signatures of Quantum Critical Higgs models, which involve a conformal sector with a larger Higgs scaling dimension, using AdS/CFT duals to predict deviations from the Standard Model at high energies.

Contribution

It introduces a novel approach to analyze Quantum Critical Higgs models at colliders using 5D AdS duals with a soft wall to break conformal symmetry.

Findings

Deviations in Higgs production cross sections at high invariant masses.

Predicted collider signatures differ from Standard Model expectations.

Use of AdS/CFT correspondence to model Quantum Critical Higgs phenomena.

Abstract

We examine distinctive signatures of Quantum Critical Higgs models at the LHC and future higher energy colliders. In these models the Higgs boson is part of a conformal sector that is softly broken at a threshold scale, and generically the scaling dimension of the Higgs is larger than in the Standard Model. In particular we examine the $gg\to H \to ZZ$, $gg\to H\to \gamma\gamma$, and $gg\to Z\to HZ$ channels to see how the cross sections deviate from the Standard Model in the high invariant mass region. In order to perform the calculations we use 5D duals of Quantum Critical Higgs models using the AdS/CFT correspondence, with a soft wall to break the conformal symmetry.