Supersymmetry without a light Higgs boson at the CERN LHC

Leone Cavicchia, Roberto Franceschini, and Vyacheslav S. Rychkov
Phys. Rev. D 77, 055006 – Published 7 March 2008

Abstract

We analyze the LHC phenomenology of λSUSY—a version of the next-to-minimal supersymmetric standard model with a large-ish SH1H2 coupling. The scalar spectrum of the model contains a 200–300 GeV Higgs boson h with standard-model like properties, and heavy CP-even and CP-odd Higgs bosons H and A with masses in 500–800 GeV range. We study the discovery potential of H and A in the decay chains Hhh4V2l6j and AZhZ2V2l4j. The dominant backgrounds are the diffuse Z6j and Z4j productions, which can be suppressed by demanding reconstruction of V’s and h’s in intermediate states. The excess of signal events allows for a discovery of both H and A with over 5σ significance for 100fb1 of integrated luminosity.

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  • Received 14 November 2007

DOI:https://doi.org/10.1103/PhysRevD.77.055006

©2008 American Physical Society

Authors & Affiliations

Leone Cavicchia, Roberto Franceschini, and Vyacheslav S. Rychkov

  • Scuola Normale Superiore and INFN, Piazza dei Cavalieri 7, I-56126 Pisa, Italy

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Issue

Vol. 77, Iss. 5 — 1 March 2008

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