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Distinguishing between MSSM and NMSSM by combined LHC and ILC analyses
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics, High Energy Physics. Högenergifysik. (Teoretisk Högenergifysik)
2005 (Swedish)In: Journal of High Energy Physics, Vol. 06Article in journal (Refereed) Published
Abstract [en]

We show that the interplay between the LHC and the e+e- International Linear Collider (ILC) with (s)1/2 = 500 GeV might be crucial for the discrimination between the minimal and next-to-minimal supersymmetric standard model. We present an NMSSM scenario that cannot be distinguished from the MSSM by cross sections and mass measurements if only the light neutralinos and the lightest chargino are kinematically accessible, even if one of the neutralinos has a significant singlino component. Mass predictions for the heavier neutralinos from the ILC analysis and their observation at the LHC lead to a identification of the neutralino mixing character and the underlying supersymmetric model in a combined LHC/ILC analysis. In our numerical example we include errors in the mass measurements and use standard methods of supersymmetric parameter determination.

Place, publisher, year, edition, pages
2005. Vol. 06
Keyword [en]
Supersymmetry Phenomenology, Supersymmetric Standard Model
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-77321DOI: doi:10.1088/1126-6708/2005/06/048OAI: oai:DiVA.org:uu-77321DiVA: diva2:105233
Available from: 2006-03-14 Created: 2006-03-14 Last updated: 2011-01-11

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Publisher's full texthttp://www.iop.org/EJ/abstract/1126-6708/2005/06/048/
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Subatomic Physics

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