Discovering Bottom Squark Co-annihilation at ILC

Details Discovering Bottom Squark Co-annihilation at ILC Discovering Bottom Squark Co-annihilation at ILC

2009-12-12

arxiv.org/abs/0912.2411v4

Phys.Rev.D81:035011,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Fig.1 was corrected, thanks to Muhammad Adeel Ajaib (UDEL)

Scientific paper

10.1103/PhysRevD.81.035011

We study the potential of International Linear Collider (ILC) at sqrt(s) = 500 GeV to probe new dark matter motivated scenario where the bottom squark (sbottom) is the next to lightest supersymmetric particle. For this scenario, which is virtually impossible for the LHC to test, the ILC has a potential to cover a large fraction of the parameter space. The challenge is due to a very low energy of jets, below 20-30 GeV, which pushes the jet clustering and flavour tagging algorithms to their limits. The process of sbottom pair production was studied within the SiD detector concept. We demonstrate that ILC offers a unique opportunity to test the SUSY parameter space motivated by the sbottom neutralino co-annihilation scenario in cases when the sbottom production is kinematically accessible. The study was done with the full SiD simulation and reconstruction chain including all Standard Model and beam backgrounds.

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