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Journal of High Energy Physics

, Volume 2011, Issue 2, pp 1–31 | Cite as

Early (and later) LHC search strategies for broad dimuon resonances

  • Randall Kelley
  • Lisa Randall
  • Brian Shuve
Article

Abstract

Resonance searches generally focus on narrow states that would produce a sharp peak rising over background. Early LHC running will, however, be sensitive primarily to broad resonances. In this paper we demonstrate that statistical methods should suffice to find broad resonances and distinguish them from both background and contact interactions over a large range of previously unexplored parameter space. We furthermore introduce an angular measure we call ellipticity, which measures how forward (or backward) the muon is in η, and allows for discrimination between models with different parity violation early in the LHC running. We contrast this with existing angular observables and demonstrate that ellipticity is superior for discrimination based on parity violation, while others are better at spin determination.

Keywords

Beyond Standard Model Phenomenological Models Hadronic Colliders Field Theories in Higher Dimensions 

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Copyright information

© SISSA, Trieste, Italy 2011

Authors and Affiliations

  1. 1.Department of PhysicsHarvard UniversityCambridgeU.S.A.

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