Accurate Cosmological Parmeters and Supersymmetric Particle Properties

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dc.creatorNath, Pran
dc.creatorArnowitt, R.
dc.date1998-01-30
dc.date.accessioned2026-07-07T11:47:50Z
dc.date.available2026-07-07T11:47:50Z
dc.descriptionFuture sattelite, balloon and ground based experiments will give precision determinations of the basic cosmological parameters and hence determine the amount of cold dark matter accurately. We consider here two cosmological models, the nuCDM model and the LambdaCDM model, and examine within the framework of supergravity grand unification the effect this will have for these models on supersymmetry searches at accelerators. In the former example the gluino (neutralino) mass has an upper bound of about 720(100) GeV and gaps (forbidden regions) may deveop at lower energies. In the latter case the upper bound occurs at gluino (neutralino) mass of about 520(70) GeV with squarks and selectron becoming light when gluino (neutralino) masses are greater than 420(55) GeV. Both models are sensitive to non-universal soft breaking masses, and show a correlation between large (small) dark matter detector rates and low (high) b -> s+ gamma branching ratio.
dc.descriptionRevTeX 10 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/9801454
dc.identifierhttp://arxiv.org/abs/hep-ph/9801454
dc.identifierMod.Phys.Lett.A13:2239-2246,1998
dc.identifierdoi:10.1142/S0217732398002394
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202712
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleAccurate Cosmological Parmeters and Supersymmetric Particle Properties
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