# Higgs bosons in the NMSSM with exact and slightly broken PQ-symmetry

, Moretti, S. and Nevzorov, R. (2005) Higgs bosons in the NMSSM with exact and slightly broken PQ-symmetry. In: 18th International Workshop on High Energy Physics and Quantum Field Theory (QFTHEP 2004),, St Petersburg, Russia, 17-23 Jun 2004,

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Publisher's URL: http://arxiv.org/pdf/hep-ph/0501139v1.pdf

## Abstract

We explore the Higgs sector of the NMSSM in the limit when the Peccei--Quinn symmetry is exact or only slightly broken. In this case the Higgs spectrum has a hierarchical structure which is caused by the stability of the physical vacuum. We find a strong correlation between the parameters of the NMSSM if $\kappa=0$ or $\kappa\lesssim \lambda^2$. It allows one to distinguish the NMSSM with exact or softly broken PQ-symmetry from the MSSM even when extra scalar and pseudoscalar Higgs states escape direct detection.

Item Type: Conference Proceedings Published Yes Moretti, Dr Stefano and Miller, Dr David and Nevzorov, Dr Roman College of Science and Engineering > School of Physics and Astronomy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
389601A phenomenological investigation of physics beyond the standard model at the next generation of collidersDavid MillerParticle Physics & Astronomy Research Council (PPARC)PP/C 502722/1P&A - PHYSICS & ASTRONOMY