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Prospects for observing the Kaluza-Klein excitations of the W boson in the ATLAS detector at the LHC

  • G. Polesello
  • M. Prata
Article
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Abstract

Kaluza-Klein excitations of the gauge bosons are a notable feature of theories with “small” (~ 1 TeV) extra dimensions. The leptonic decays of the excitations of the W boson provide at the LHC the striking signature of events containing an isolated high P T lepton accompanied by a high transverse momentum imbalance.

We investigate the reach for these signatures through a parametrized simulation of the ATLAS detector. With an integrated luminosity of 100 fb–1 a peak in the transverse invariant mass of the lepton-neutrino system will be detected if the compactification scale (M c ) is below 6 TeV. If no signal is observed, with an integrated luminosity of 100 fb–1 a limit of M c >11.7 TeV can be obtained from the study of the lepton-neutrino transverse mass distribution below the peak. If a peak is detected, a measurement of the couplings of the boson to leptons and quarks can be performed for M c up to ~5 TeV.

PACS: 11.10Kk – 11.25Mj – 13.85-t

Keywords

Transverse Momentum Gauge Boson Extra Dimension Integrate Luminosity Transverse Mass 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag, Società Italiana di Fisica 2003

Authors and Affiliations

  • G. Polesello
    • 1
  • M. Prata
    • 1
  1. 1.INFN, Sezione di Pavia, Dipartimento di Fisica Nucleare e Teorica, Universitá di Pavia, Via Bassi 6, PaviaItaly

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