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IMPLICATIONS OF PLANCK AND MAP MEASUREMENTS ON SPARTICLE SPECTRA

R. Arnowitt

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Abstract

Future sattelite (MAP and Planck), balloon and ground based experiments will determine the basic cosmological parameters within a few percent. We examine here the effect of this on constraining the SUSY parameter space for supergravity R-parity conserving models (with tan β ≤ 25) for the cases of νCDM and ΛCDM cosmological models. For the νCDM (ΛCDM) models, the gluino mass is restricted by m˜g < 720(540)GeV. In both cases, the cosmological constraints are sensitive to non-universal SUSY soft breaking producing a lower bound m˜g> 400GeV in some regions and for the νCDM model, gaps in the allowed m˜g range for other regions. For gluino (neutralino) masses greater than 450(65)GeV, m0 is constrained to be small making squark and slepton masses generally light and determined mostly by m˜g. 1

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Future sattelite (MAP and Planck), balloon and ground based experiments will determine the basic cosmological parameters within a few percent. We examine here the effect of this on constraining the SUSY parameter space for supergravity R-parity conserving models (with tan β ≤ 25) for the cases of νCDM and ΛCDM cosmological models. For the νCDM (ΛCDM) models, the gluino mass is restricted by m˜g < 720(540)GeV. In both cases, the cosmological constraints are sensitive to non-universal SUSY soft breaking producing a lower bound m˜g> 400GeV in some regions and for the νCDM model, gaps in the allowed m˜g range for other regions. For gluino (neutralino) masses greater than 450(65)GeV, m0 is constrained to be small making squark and slepton masses generally light and determined mostly by m˜g. 1

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Available abstract

Future sattelite (MAP and Planck), balloon and ground based experiments will determine the basic cosmological parameters within a few percent. We examine here the effect of this on constraining the SUSY parameter space for supergravity R-parity conserving models (with tan β ≤ 25) for the cases of νCDM and ΛCDM cosmological models. For the νCDM (ΛCDM) models, the gluino mass is restricted by m˜g < 720(540)GeV. In both cases, the cosmological constraints are sensitive to non-universal SUSY soft breaking producing a lower bound m˜g> 400GeV in some regions and for the νCDM model, gaps in the allowed m˜g range for other regions. For gluino (neutralino) masses greater than 450(65)GeV, m0 is constrained to be small making squark and slepton masses generally light and determined mostly by m˜g. 1

Key concepts: Superpartner, Physics, Planck, Spectral line, Particle physics, Astrophysics, Astronomy, Supersymmetry

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