Neutralino dark matter in the left-right supersymmetric model
Open Access
- 8 June 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 73 (11) , 115001
- https://doi.org/10.1103/physrevd.73.115001
Abstract
We study the neutralino sector of the left-right supersymmetric model. In addition to the possibilities available in the minimal supersymmetric model, the neutralino states can be superpartners of the gauge boson, the neutral gauge boson, or of the Higgs triplets. We analyze neutralino masses and determine the parameter regions for which the lightest neutralino can be one of the new pure states. We then calculate the relic density of the dark matter for each of these states and impose the constraints coming from the parameter, the anomalous magnetic moment of the muon, , as well as general supersymmetric mass bounds. The lightest neutralino can be the bino, or the right-wino, or the neutral triplet Higgsino, all of which have different couplings to the standard model particles from the usual neutralinos. A light bino satisfies all the experimental constraints and would be the preferred dark matter candidate for light supersymmetric scalar masses, while the right-wino would be favored by intermediate supersymmetric mass scales. The neutral triplet Higgs fermion satisfies the experimental bounds only in a small region of the parameter space, for intermediate to heavy supersymmetric scalar masses.
Keywords
All Related Versions
This publication has 49 references indexed in Scilit:
- The well-tempered neutralinoNuclear Physics B, 2006
- micrOMEGAs: Version 1.3Computer Physics Communications, 2006
- DarkSUSY: computing supersymmetric dark matter properties numericallyJournal of Cosmology and Astroparticle Physics, 2004
- First YearWilkinson Microwave Anisotropy ProbeObservations: Dark Energy Induced Correlation with Radio SourcesThe Astrophysical Journal, 2004
- First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Implications For InflationThe Astrophysical Journal Supplement Series, 2003
- Supersymmetric dark matter in light of WMAPPhysics Letters B, 2003
- Supersymmetric relics from the big bangPublished by Elsevier ,2002
- Light scalar top quarks and supersymmetric dark matterPhysical Review D, 2000
- Three exceptions in the calculation of relic abundancesPhysical Review D, 1991
- Constraint on the Photino Mass from CosmologyPhysical Review Letters, 1983