Novel collider signatures for Little Higgs dark matter models

摘要: Abstract Little Higgs models with T-parity provide a stable neutral particle A H , the lightest T-odd (LTP), which was recently proposed to explain cold dark matter of Universe. In coannihilation region LTP partner light quark Q we propose novel signatures for its detection at hadronic colliders by searching monojet and dijet plus missing energy events due associated production direct ¯ respectively. Using most recent WMAP data, show that coupling – q is tightly constrained in region. This implies signal too small be discernible but potentially measurable LHC.