The Higgs boson structure functions as signposts of new physics

TL;DR

This paper proposes that analyzing Higgs boson structure functions in electron-positron collisions can reveal new physics, such as compositeness or dark matter, without complex experimental procedures.

Contribution

It introduces a novel method to detect new physics through Higgs structure functions, bypassing detailed analysis of the inclusive final states.

Findings

Structure functions can distinguish new physics contributions from standard predictions.

Different new physics scenarios produce distinct shape modifications in the structure functions.

The approach offers a practical way to identify signs of new physics in Higgs production.

Abstract

We show that the Higgs boson structure functions observable in the inclusive process $e^-e^+ \to H + {\rm "anything"}$ may reveal the presence of anomalous contributions corresponding to several types of new physics partners, Higgs boson compositeness or invisible (dark) matter. This could be done without making a difficult or even an impossible experimental analysis of the contents of the "anything". We give illustrations showing how the shapes of the various structure functions containing such typical new contributions may differ from the standard prediction and allow their identification.