Model-independent searches for new physics in multi-body invariant masses

TL;DR

This paper investigates the potential for model-independent searches for new physics using three- and four-body invariant masses of jets and leptons, expanding beyond traditional two-body mass analyses at colliders.

Contribution

It introduces a novel approach to search for new physics through multi-body invariant masses, which could reveal signals missed by two-body analyses.

Findings

Potential to discover new physics in multi-body invariant masses

Complementary to existing two-body mass searches

Enhances the sensitivity of collider experiments to new phenomena

Abstract

Model-independent searches for physics beyond the Standard Model typically focus on invariant masses of two objects (jets, leptons or photons). In this study we explore opportunities for similar model-agnostic searches in multi-body invariant masses. In particular, we focus on the situations when new physics can be observed in a model-independent way in three- and four-body invariant masses of jets and leptons. Such searches may have good prospects in finding new physics in the situations when two-body invariant masses, that have been extensively explored at collider experiments in the past, cannot provide sufficient signatures for experimental observations.