MSSM: Cornered and Correlated
arXiv:1210.7806 · doi:10.1007/JHEP01(2013)061
Abstract
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_sgamma, B_s -> mu^+mu^-, and (g-2)_mu, and the dark matter (DM) relic density. We focus on the corners of the MSSM parameter space where the pp -> h -> gammagamma signal is enhanced due to the presence of a light stau state. In this region tan(beta), M_A, A_t, and mu take large values, and we find striking correlations between many of the considered observables. In particular, the B -> X_sgamma branching fraction is enhanced, while the B_s -> mu^+mu^- 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)_mu 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.
27 pages, 5 figures
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