Theoretical upper bound on the mass of the LSP in the MNSSM

Hesselbach, S., Miller, D.J. , Moortgat-Pick, G., Nevzorov, R. and Trusov, M. (2008) Theoretical upper bound on the mass of the LSP in the MNSSM. Physics Letters B, 662(2), pp. 199-207. (doi: 10.1016/j.physletb.2008.02.050)

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We study the neutralino sector of the Minimal Non-minimal Supersymmetric Standard Model (MNSSM) where the μ problem of the Minimal Supersymmetric Standard Model (MSSM) is solved without accompanying problems related with the appearance of domain walls. In the MNSSM as in the MSSM the lightest neutralino can be the absolutely stable lightest supersymmetric particle (LSP) providing a good candidate for the cold dark matter component of the Universe. In contrast with the MSSM the allowed range of the mass of the lightest neutralino in the MNSSM is limited. We establish the theoreticalupperbound on the lightest neutralino mass in the framework of this model and obtain an approximate solution for this mass.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Miller, Dr David and Nevzorov, Dr Roman
Authors: Hesselbach, S., Miller, D.J., Moortgat-Pick, G., Nevzorov, R., and Trusov, M.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier BV
ISSN (Online):1873-2445
Published Online:29 February 2008
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
481951Investigations in Quantum Chromodynamics and Physics Beyond the Standard ModelChristine DaviesScience & Technologies Facilities Council (STFC)ST/G00059X/1Physics and Astronomy
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