LHC signatures of vector boson emission from brane to bulk

TL;DR

This paper investigates how Z-bosons and photons emitted into extra dimensions in a specific brane-world model could be detected at the LHC by analyzing jet events with missing energy, providing potential signals of extra dimensions.

Contribution

It introduces a novel analysis of Z-boson and photon emission into the bulk in the RSII-n model at LHC energies, with detailed predictions for observable distributions.

Findings

Models with more than 3 extra dimensions can be probed at 14 TeV.

At 7 TeV, only models with more than 5 extra dimensions are detectable.

Predicted distributions differ from Standard Model backgrounds, aiding experimental searches.

Abstract

In the framework of the RSII-n model with n compact and one infinite extra dimensions, we study the production of Z-bosons and photons, which escape into the bulk, in association with a jet in pp collisions at the LHC energies. This would show up as the process pp -> jet+bulk. We calculate the distributions in the jet transverse momentum and rapidity and compare them with the Standard Model background pp->jet +\nu\bar{\nu}.We find that the models with n>3 can be probed at the collision energy 14 TeV, while searches at 7 TeV are sensitive to models with n>5 only.