Probing and Distinguishing Representations at the LHC

TL;DR

This paper investigates how additional scalar particles beyond the Standard Model Higgs can be detected and differentiated at the LHC using multileptonic final states, even with limited data.

Contribution

It provides a method to probe and distinguish extended scalar representations at the LHC based on recent Higgs data and multileptonic signatures.

Findings

Extended scalar representations can be identified with low luminosity.

Multileptonic final states are effective for distinguishing scalar models.

The analysis aligns with recent Higgs measurements.

Abstract

The discovery made at the Large Hadron Collider (LHC) has revealed that the spontaneous symmetry breaking mechanism is realised in a gauge theory such as the Standard Model (SM) by at least one Higgs doublet. However, the possible existence of other scalar bosons cannot be excluded. We analyze signatures extensions of the SM, characterized by an extra representations of scalars, in view of the recent and previous Higgs data. We show that such representations can be probed and distinguished, mostly with multileptonic final states, with a relatively low luminosity at the LHC.