LHC phenomenology of general SU(2)xSU(2)xU(1) models

TL;DR

This paper investigates the LHC signals of general SU(2)xSU(2)xU(1) models, highlighting how correlated measurements can uniquely identify the model among similar theories.

Contribution

It performs a numerical analysis of LHC signals in these models, emphasizing the importance of correlated cross section measurements for model identification.

Findings

Total cross sections are accessible but only partially informative.

Correlations between neutral and charged current channels can uniquely identify the model.

Global analysis constrains the parameter space of these models.

Abstract

General SU(2)xSU(2)xU(1) models represent a well-motivated intermediate step towards the unification of the Standard Model gauge groups. Based on a recent global analysis of low-energy and LEP constraints of these models, we perform numerical scans of their various signals at the LHC. We show that total cross sections for lepton and third-generation quark pairs, while experimentally easily accessible, provide individually only partial information about the model realized in Nature. In contrast, correlations of these cross sections in the neutral and charged current channels may well lead to a unique identification.