Journal of High Energy Physics

, 2011:41 | Cite as

Stau kinks at the LHC

  • Shoji Asai
  • Yuya Azuma
  • Motoi Endo
  • Koichi Hamaguchi
  • Sho Iwamoto


The kink signature of charged tracks is predicted in some SUSY models, and it is very characteristic signal at collider experiments. We study the kink signature at LHC using two models, SUSY models with a gravitino LSP and a stau NLSP, and R- parity violating SUSY models with a stau (N)LSP. We find that a large number of kink events can be discovered in a wide range of the SUSY parameters, when the decay length is \( \mathcal{O}({1}0{ } - { 1}{0^{{5}}}) \) mm. Model discrimination by identifying the daughter particles of the kink tracks is also discussed.


Supersymmetry Phenomenology 


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Copyright information

© SISSA, Trieste, Italy 2011

Authors and Affiliations

  • Shoji Asai
    • 1
  • Yuya Azuma
    • 1
  • Motoi Endo
    • 1
    • 2
  • Koichi Hamaguchi
    • 1
    • 2
  • Sho Iwamoto
    • 1
  1. 1.Department of PhysicsUniversity of TokyoTokyoJapan
  2. 2.Institute for the Physics and Mathematics of the UniverseUniversity of TokyoChibaJapan

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