Constraints on UED from W' searches

TL;DR

This paper uses CMS W' search results to set constraints on various Universal Extra Dimensional models, affecting parameters like mass splittings and Dirac mass terms, with implications for Kaluza-Klein excitations.

Contribution

It provides the first comprehensive constraints on multiple UED models from W' searches, highlighting differences in sensitivity based on model specifics.

Findings

Weak constraints on Minimal UED due to small KK-violating terms.

Strong limits on Dirac mass terms in Split UED models.

Constraints on boundary kinetic term splittings in Non-minimal UED.

Abstract

We obtain contraints on three Universal Extra Dimensional models utilizing limits from the CMS Collaboration on W' production and decay into a single-top-quark final state. We find a weak constraint on the Minimal Universal Extra Dimensions model due to small Kaluza-Klein number violating terms. In contrast, the W' search puts a strong limit on the size of the Dirac mass term of the quarks in Split Universal Extra Dimension models. In Non-minimal Universal Extra Dimension models the W' search constrains the splitting between the boundary localized kinetic terms of the gauge bosons and the quarks. Each of these bounds can be translated into constraints on the mass splitting between the Kaluza-Klein excitations of the SU(2) charged quarks and the Klauza-Klein excitations of the W boson.