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Constraining Supersymmetry using the relic density and the Higgs boson by Henrot-Versillé, Sophie; Lafaye, Rémi; Plehn, Tilman; Rauch, Michael; Zerwas, Dirk; Plaszczynski, Stéphane; d'Orfeuil, Benjamin Rouillé; Spinelli, Marta is a scholarly article available to read on EtoBox.

What is Constraining Supersymmetry using the relic density and the Higgs boson about?

Recent measurements by Planck, LHC experiments, and Xenon100 have significant impact on supersymmetric models and their parameters. We first illustrate the constraints in the mSUGRA plane and then perform a detailed analysis of the general MSSM with 13 free parameters. Using SFitter, Bayesian and Profile Likelihood approaches are applied and their results compared. The allowed structures in the parameter spaces are largely defined by different mechanisms of dark matter annihilation in combination with the light Higgs mass prediction. In mSUGRA the pseudoscalar Higgs funnel and stau co-annihilation processes are still avoiding experimental pressure. In the MSSM stau co-annihilation, the light Higgs funnel, a mixed bino--higgsino region including the heavy Higgs funnel, and a large higgsino region predict the correct relic density. Volume effects and changes in the model parameters impact the extracted mSUGRA and MSSM parameter regions in the Bayesian analysis.

Author

Henrot-Versillé, Sophie; Lafaye, Rémi; Plehn, Tilman; Rauch, Michael; Zerwas, Dirk; Plaszczynski, Stéphane; d'Orfeuil, Benjamin Rouillé; Spinelli, Marta

Published

2013

Language

EN