Split Supersymmetry, stable gluino, and gluinonium

Details Split Supersymmetry, stable gluino, and gluinonium Split Supersymmetry, stable gluino, and gluinonium

2004-08-30

arxiv.org/abs/hep-ph/0408335v1

Phys.Rev.D71:015015,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 2 figures

Scientific paper

10.1103/PhysRevD.71.015015

In the scenario recently proposed by Arkani and Dimopoulos, the supersymmetric scalar particles are all very heavy, at least of the order of $10^9$ GeV but the gauginos, higgsinos, and one of the neutral Higgs bosons remain under a TeV. The most distinct signature is the metastable gluino. However, the detection of metastable gluino depends crucially on the spectrum of hadrons that it fragments into. Instead, here we propose another unambiguous signature by forming the gluino-gluino bound state, gluinonium, which will then annihilate into $t\bar t$ and $b\bar b$ pairs. We study the sensitivity of such signatures at the LHC.

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