Production of long-lived staus in the Drell-Yan process

Jan Heisig and Jörn Kersten
Phys. Rev. D 84, 115009 – Published 9 December 2011

Abstract

We investigate the phenomenology of the gravitino dark matter scenario with a stau as the next-to-lightest supersymmetric particle at the LHC. For a wide range of gravitino masses the lighter stau is stable on the scale of a detector and gives rise to a prominent signature as a “slow muon.” The direct stau production via the Drell-Yan process is always present and independent of the mass spectrum of the other superparticles, thus providing a lower bound for the discovery potential of this scenario. Performing a careful analysis with particular emphasis on the criteria for observing stau pairs and for distinguishing them from the background, we find that the 14 TeV run of the LHC has a promising potential for finding long-lived staus from Drell-Yan production up to very large stau masses.

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  • Received 13 September 2011

DOI:https://doi.org/10.1103/PhysRevD.84.115009

© 2011 American Physical Society

Authors & Affiliations

Jan Heisig* and Jörn Kersten

  • II. Institute for Theoretical Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

  • *jan.heisig@desy.de
  • joern.kersten@desy.de

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Issue

Vol. 84, Iss. 11 — 1 December 2011

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