Inert Doublet Model and LEP II Limits
2009 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 79, 035013-1-035013-13 p.Article in journal (Refereed) Published
The inert doublet model is a minimal extension of the standard model introducing an additional SU(2) doublet with new scalar particles that could be produced at accelerators. While there exists no LEP II analysis dedicated for these inert scalars, the absence of a signal within searches for supersymmetric neutralinos can be used to constrain the inert doublet model. This translation however requires some care because of the different properties of the inert scalars and the neutralinos. We investigate what restrictions an existing DELPHI Collaboration study of neutralino pair production can put on the inert scalars and discuss the result in connection with dark matter. We ﬁnd that although an important part of the inert doublet model parameter space can be excluded by the LEP II data, the lightest inert particle still constitutes a valid dark matter candidate
Place, publisher, year, edition, pages
American Physical Society , 2009. Vol. 79, 035013-1-035013-13 p.
Subatomic Physics Subatomic Physics
Research subject Physics
IdentifiersURN: urn:nbn:se:su:diva-39270DOI: 10.1103/PhysRevD.79.035013ISI: 000263816600078OAI: oai:DiVA.org:su-39270DiVA: diva2:319285