SUSY Hidden in the Continuum

TL;DR

This paper explores models with superpartners having continuous spectra due to coupling with conformal sectors, revealing unique collider signatures like long decay chains with soft particles and spherical energy distributions.

Contribution

It introduces the concept of superpartners with continuous spectra and analyzes their distinctive collider phenomenology in supersymmetric models.

Findings

Superpartners in the continuum produce long decay chains.

Decay products are soft and emitted in a spherical pattern.

Distinctive collider signatures differ from traditional discrete spectra.

Abstract

We study models where the superpartners of the ordinary particles have continuous spectra rather than being discrete states, which can occur when the supersymmetric standard model is coupled to an approximately conformal sector. We show that when superpartners that are well into the continuum are produced at a collider they tend to have long decay chains that step their way down through the continuum, emitting many fairly soft standard model particles along the way, with a roughly spherical energy distribution in the center of mass frame.