Publications by Ulrich Haisch


MSSM: Cornered and correlated

Journal of High Energy Physics 2013 (2013)

U Haisch, F Mahmoudi

Inspired by the latest results of ATLAS and CMS on the search for the standard model (SM) Higgs scalar, we discuss in this article the correlations between Higgs-boson properties, low-energy observables, such as B → X sγ, B s → μ + μ -, and (g - 2)μ, and the dark matter (DM) relic density. We focus on the corners of the MSSM parameter space where the pp → h → γγ signal is enhanced due to the presence of a light stau state. In this region tan β, M A, A t, and μ take large values, and we find striking correlations between many of the considered observables. In particular, the B → X sγ branching fraction is enhanced, while the B s → μ + μ - rate tends to be below the SM expectation. In contrast, the Higgs-boson couplings show good overall agreement with the preliminary experimental determinations, the DM abundance is consistent with observation, and the discrepancy in (g - 2) μ is reduced. The predicted deviations and found correlations could be tested in the near future and hence may become very valuable as guidelines and consistency checks. © 2013 SISSA.


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