Properties of the lightest neutralino in MSSM extensions

Vernon Barger, Paul Langacker, Hye Sung Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


We study neutralino sectors in extensions of the MSSM that dynamically generate the μ-term. The extra neutralino states are superpartners of the Higgs singlets and/or additional gauge bosons. The extended models may have distinct lightest neutralino properties which can have important influences on their phenomenology. We consider constraints on the lightest neutralino from LEP, Tevatron, and (g - 2)μ measurements and the relic density of the dark matter. The lightest neutralino can be extremely light and/or dominated by its singlino component, which does not couple directly to SM particles except Higgs doublets.

Original languageEnglish (US)
Title of host publicationPARTICLES, STRINGS, AND COSMOLOGY
Subtitle of host publication11th International Symposium on Particles, Strings, and Cosmology, PASCOS 2005
Number of pages4
StatePublished - Dec 2 2005
Event11th International Symposium on Particles, Strings and Cosmology, PASCOS 2005 - Gyeongju, Korea, Republic of
Duration: May 30 2005Jun 4 2005

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other11th International Symposium on Particles, Strings and Cosmology, PASCOS 2005
Country/TerritoryKorea, Republic of

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


  • Neutralino


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