The NUHM2 after LHC Run 1

O. Buchmueller, R. Cavanaugh, M. Citron, A. De Roeck, M. J. Dolan, J. R. Ellis, H. Flächer, S. Heinemeyer, S. Malik, J. Marrouche, D. Martínez Santos, K. A. Olive, K. J. de Vries, G. Weiglein

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46 Scopus citations


We make a frequentist analysis of the parameter space of the NUHM2, in which the soft supersymmetry (SUSY)-breaking contributions to the masses of the two Higgs multiplets, (Formula presented.), vary independently from the universal soft SUSY-breaking contributions (Formula presented.) to the masses of squarks and sleptons. Our analysis uses the MultiNest sampling algorithm with over (Formula presented.) points to sample the NUHM2 parameter space. It includes the ATLAS and CMS Higgs mass measurements as well as the ATLAS search for supersymmetric jets + (Formula presented.) signals using the full LHC Run 1 data, the measurements of (Formula presented.) by LHCb and CMS together with other B-physics observables, electroweak precision observables and the XENON100 and LUX searches for spin-independent dark-matter scattering. We find that the preferred regions of the NUHM2 parameter space have negative SUSY-breaking scalar masses squared at the GUT scale for squarks and sleptons, (Formula presented.). The tension present in the CMSSM and NUHM1 between the supersymmetric interpretation of (Formula presented.) and the absence to date of SUSY at the LHC is not significantly alleviated in the NUHM2. We find that the minimum (Formula presented.) with 21 degrees of freedom (dof) in the NUHM2, to be compared with (Formula presented.) in the CMSSM, and (Formula presented.) in the NUHM1. We find that the one-dimensional likelihood functions for sparticle masses and other observables are similar to those found previously in the CMSSM and NUHM1.

Original languageEnglish (US)
Article number3212
Pages (from-to)1-16
Number of pages16
JournalEuropean Physical Journal C
Issue number12
StatePublished - Dec 4 2014

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