LHC Signatures of the Constrained Exceptional Supersymmetric Standard Model

Details LHC Signatures of the Constrained Exceptional Supersymmetric Standard Model LHC Signatures of the Constrained Exceptional Supersymmetric Standard Model

2011-02-21

arxiv.org/abs/1102.4363v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 5 figures, corrections to figure captions

Scientific paper

We discuss two striking Large Hadron Collider (LHC) signatures of the constrained version of the exceptional supersymmetric standard model (cE6SSM), based on a universal high energy soft scalar mass m_0, soft trilinear coupling A_0 and soft gaugino mass M_{1/2}. The first signature we discuss is that of light exotic colour triplet charge 1/3 fermions, which we refer to as D-fermions. We calculate the LHC production cross section of D-fermions, and discuss their decay patterns. Secondly we discuss the E6 type U(1)_N spin-1 Z' gauge boson and show how it may decay into exotic states, increasing its width and modifying the line shape of the dilepton final state. We illustrate these features using two representative cE6SSM benchmark points, including an "early LHC discovery" point, giving the Feynman rules and numerical values for the relevant couplings in order to facilitate further studies.

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