# CSM constraints on the $gg\to ZH$ process

## TL;DR

This paper investigates how the process $gg o ZH$ can reveal signs of Higgs and top quark compositeness by analyzing form factors and the constraints needed to preserve Standard Model cancellations.

## Contribution

It establishes a relation between Higgs and top quark form factors that maintain Standard Model cancellations, providing a new framework to test compositeness effects.

## Key findings

- Relations between form factors that preserve SM cancellations
- Spectacular consequences of violating CSM constraints
- Illustrations of how compositeness affects $gg o ZH$ process

## Abstract

We study more deeply the sensitivity of the $ZH$ production process in gluon-gluon collisions to the details of a possible Higgs and top quark compositeness. We establish a relation between Higgs and top quark form factors which would keep the basic cancellation appearing in SM and satisfy the concept of CSM. We give illustrations showing the spectacular consequences of various choices preserving or violating this CSM constraint.