ILC Sensitivity on Generic New Physics in Quartic Gauge Couplings

TL;DR

This paper assesses the ILC's ability to detect new physics through anomalous quartic gauge couplings, focusing on resonance parameters and potential discovery of scalar, vector, and tensor resonances.

Contribution

It introduces a framework for classifying new physics effects on gauge couplings and evaluates the ILC's sensitivity to various resonance types.

Findings

ILC can probe scalar, vector, and tensor resonances up to certain mass ranges.

Maximum likelihood fit used to estimate discovery potential.

Sensitivity depends on resonance properties like mass and width.

Abstract

We investigate the potential of the ILC for measuring anomalous quartic gauge couplings, both in production of three electroweak gauge bosons as well as in vector boson scattering. Any new physics that could possibly couple to the electroweak gauge bosons is classified according to its spin and isospin quantum numbers and parameterized in terms of resonance parameters like masses, widths, magnetic moment form factors etc. By a maximum log-likelihood fit, the discovery reach of a 1 TeV ILC for scalar, vector and tensor resonances is examined.