Search for Universal Extra Dimensions with the D0 Experiment

TL;DR

This paper reports a search for universal extra dimensions using the D0 experiment data, focusing on events with two same-sign muons to detect potential signals of extra spatial dimensions and dark matter candidates.

Contribution

It presents the first search for UED with the D0 experiment using same-sign muon events and 7.3 fb^{-1} of data at the Tevatron collider.

Findings

No evidence of UED signals found.

Constraints set on the minimal UED model parameters.

Limits on the size of extra dimensions established.

Abstract

A search for signs of universal extra dimensions (UED) has been performed with the D0 experiment, using events with two same-sign muons. The considered minimal UED model includes one extra dimension, and has a stable lightest Kaluza-Klein particle (LKP) which is a dark matter candidate. In the search, 7.3 fb^{-1} of D0 data, collected in p\bar{p} collisions at the Fermilab Tevatron collider at \surd\bar{s} = 1.96 TeV, have been used.