Assessing Compatibility of Direct Detection Data: Halo-Independent Global Likelihood Analyses

10 Oct 2016 Gelmini Graciela B. Huh Ji-Haeng Witte Samuel J.

We present two different halo-independent methods to assess the compatibility of several direct dark matter detection data sets for a given dark matter model using a global likelihood consisting of at least one extended likelihood and an arbitrary number of Gaussian or Poisson likelihoods. In the first method we find the global best fit halo function (we prove that it is a unique piecewise constant function with a number of down steps smaller than or equal to a maximum number that we compute) and construct a two-sided pointwise confidence band at any desired confidence level, which can then be compared with those derived from the extended likelihood alone to assess the joint compatibility of the data... (read more)

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  • HIGH ENERGY PHYSICS - PHENOMENOLOGY
  • COSMOLOGY AND NONGALACTIC ASTROPHYSICS