Exploring Higgs Sector Spectroscopy

TL;DR

This paper investigates the spectrum of the Higgs sector in the standard model, exploring the existence of bound states and resonances, and discusses potential experimental implications within a field-theoretic framework.

Contribution

It provides a detailed analysis of the Higgs sector spectroscopy, including excited states and resonance possibilities, highlighting the impact of gauge coupling behavior.

Findings

Potential existence of gauge-invariant bound states and resonances in the Higgs sector

Analysis of excited states and their spectral properties

Discussion of experimental consequences of Higgs sector spectroscopy

Abstract

The Higgs sector of the standard model is field-theoretically a very interesting theory. Because strong and weak coupling domains are continuously connected, only quantitative changes distinguish the various regions. Especially, this is true for the asymptotic spectrum, which can only consist out of gauge-invariant composite, i. e. bound, states. Since in some regions of parameter space even Regge trajectories are expected to exist, there is immediately the possibility that resonances may also be present in the parameter region characteristic of the standard model Higgs sector. This possibility is discussed in some detail, starting from the definition of the theory to spectroscopy, including excited state analysis, to some considerations whether this could have experimental consequences. The strongest limitation for this exploration turns out to be that the gauge coupling without fermions runs much faster, and the gauge sector is therefore potentially affected.