LHC signatures of the constrained exceptional supersymmetric standard model

Athron, P., King, S., Miller, D.J. , Moretti, S. and Nevzorov, R. (2011) LHC signatures of the constrained exceptional supersymmetric standard model. Physical Review D, 84(5), 055006. (doi:10.1103/PhysRevD.84.055006)

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Abstract

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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Miller, Dr David
Authors: Athron, P., King, S., Miller, D.J., Moretti, S., and Nevzorov, R.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Research Group:Particle Physics Theory
Journal Name:Physical Review D
Publisher:American Physical Society
ISSN:1550-7998
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