Stau Kinks at the LHC

Details Stau Kinks at the LHC Stau Kinks at the LHC

2011-03-09

arxiv.org/abs/1103.1881v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 4 figures; Version published in JHEP; abstract refined, reference added and several minor corrections in text

Scientific paper

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 O(10-10^5)mm. Model discrimination by identifying the daughter particles of the kink tracks is also discussed.

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