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We discuss the predictions of a 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. We predict a…

High Energy Physics - Phenomenology · Physics 2010-04-21 P. Athron , S. F. King , D. J. Miller , S. Moretti , R. Nevzorov

We discuss the predictions of a constrained version of the exceptional supersymmetric standard model (cE6SSM), with a universal high energy soft scalar mass, soft trilinear coupling and soft gaugino mass. The spectrum includes a light…

High Energy Physics - Phenomenology · Physics 2014-11-20 P. Athron , S. F. King , D. J. Miller , S. Moretti , R. Nevzorov

The Exceptional Supersymmetric Standard Model (E$_6$SSM) provides a low energy alternative to the MSSM, with an extra gauged U(1)$_N$ symmetry, solving the $\mu$-problem of the MSSM. Inspired by the possible embedding into an E$_6$ GUT, the…

High Energy Physics - Phenomenology · Physics 2015-05-14 P. Athron , S. F. King , D. J. Miller , S. Moretti , R. Nevzorov

We discuss some phenomenological aspects of an $E_6$ inspired supersymmetric standard model with an extra $U(1)_{N}$ gauge symmetry under which right-handed neutrinos have zero charge, allowing a conventional see-saw mechanism. The $\mu$…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. F. King , S. Moretti , R. Nevzorov

The Exceptional Supersymmetric Standard Model (E$_6$SSM) is a low energy alternative to the MSSM with an extra $U(1)$ gauge symmetry and three generations of matter filling complete 27-plet representations of $E_6$. This provides both new D…

High Energy Physics - Phenomenology · Physics 2017-03-01 P. Athron , A. W. Thomas , S. J. Underwood , M. J. White

We study the parameter space of the constrained exceptional supersymmetric standard model (cE6SSM) consistent with a Higgs signal near 125 GeV and the LHC searches for squarks, gluinos and Z'. The cE6SSM parameter space consistent with…

High Energy Physics - Phenomenology · Physics 2013-05-30 P. Athron , S. F. King , D. J. Miller , S. Moretti , R. Nevzorov

We make a comprehensive study of the theory and phenomenology of a low energy supersymmetric standard model originating from a string-inspired $E_6$ grand unified gauge group. The Exceptional Supersymmetric Standard Model (ESSM) considered…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. F. King , S. Moretti , R. Nevzorov

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…

High Energy Physics - Phenomenology · Physics 2013-05-29 P. Athron , S. F. King , D. J. Miller , S. Moretti , R. Nevzorov

The Exceptional Supersymmetric Standard Model (E6SSM) is an E6 inspired model with an extra gauged U(1) symmetry, which solves the mu-problem in a similar way to the NMSSM but without the accompanying problems of singlet tadpoles or domain…

High Energy Physics - Phenomenology · Physics 2008-11-26 Peter Athron , S. F. King , D. J. Miller , S. Moretti , R. Nevzorov

We present a self--consistent $E_6$ inspired supersymmetric model with an extra $U(1)_{N}$ gauge symmetry under which right-handed neutrinos have zero charge. We explore the particle spectrum within the constrained version of this…

High Energy Physics - Phenomenology · Physics 2008-10-17 P. Athron , S. F. King , D. J. Miller , S. Moretti , R. Nevzorov

We study electroweak baryogenesis in the E_6 inspired exceptional supersymmetric standard model ( E_6SSM ). The relaxation coefficients driven by singlinos and the new gaugino as well as the transport equation of the Higgs supermultiplet…

High Energy Physics - Phenomenology · Physics 2015-09-16 Wei Chao

We calculate threshold corrections to the running gauge and Yukawa couplings in the Exceptional Supersymmetric Standard Model (E6SSM) and analyse the more precise and reliable mass spectra in a constrained model (CE6SSM). Full expressions…

High Energy Physics - Phenomenology · Physics 2013-05-30 Peter Athron , Dominik Stöckinger , Alexander Voigt

We discuss several phenomenological aspects of the fully constrained version of the next-to-minimal supersymmetric extension of the standard model (cNMSSM). Assuming universal boundary conditions at a high energy scale for the soft…

High Energy Physics - Phenomenology · Physics 2009-04-17 A. Djouadi , U. Ellwanger , A. M. Teixeira

In this talk we discuss an $E_6$ inspired supersymmetric (SUSY) model with an extra $U(1)_{N}$ gauge symmetry under which right-handed neutrinos have zero charge. In this exceptional supersymmetric standard model (E$_6$SSM) the $\mu$-term…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. F. King , S. Moretti , R. Nevzorov

Local supersymmetry (SUSY) provides an attractive framework for the incorporation of gravity and unification of gauge interactions within Grand Unified Theories (GUTs). Its breakdown can lead to a variety of models with softly broken SUSY…

High Energy Physics - Phenomenology · Physics 2020-02-10 S. F. King , S. Moretti , R. Nevzorov

We perform a comprehensive analysis of the Minimal Supersymmetric Standard Model (MSSM) in the scenario where the scalar partners of the fermions and the Higgs particles (except for the Standard-Model-like one) are assumed to be very heavy…

High Energy Physics - Phenomenology · Physics 2011-12-09 Nicolas Bernal , Abdelhak Djouadi , Pietro Slavich

Using the GAMBIT global fitting framework, we constrain the MSSM with an eV-scale gravitino as the lightest supersymmetric particle, and the six electroweakinos (neutralinos and charginos) as the only other light new states. We combine 15…

We consider collider signatures of the exceptional supersymmetric (SUSY) standard model (E6SSM). This E6 inspired SUSY model is based on the SM gauge group together with an extra U(1) gauge symmetry under which right--handed neutrinos have…

High Energy Physics - Phenomenology · Physics 2011-09-30 P. Athron , J. P. Hall , S. F. King , S. Moretti , D. J. Miller , R. Nevzorov , S. Pakvasa , M. Sher

We consider the renormalisation group flow of gauge couplings within the so-called exceptional supersymmetric standard model (E$_6$SSM) based on the low energy matter content of 27 dimensional representations of the gauge group $E_6$,…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. F. King , S. Moretti , R. Nevzorov

We point out that the extra neutralinos and charginos generically appearing in a large class of $E_6$ inspired models lead to distinctive signatures from gluino cascade decays in comparison to those from the Minimal Supersymmetric Standard…

High Energy Physics - Phenomenology · Physics 2013-03-14 Alexander Belyaev , Jonathan P. Hall , Stephen F. King , Patrik Svantesson
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