Asymptotic distribution for two-sided tests with lower and upper   boundaries on the parameter of interest
  We present the asymptotic distribution for two-sided tests based on the profile likelihood ratio with lower and upper boundaries on the parameter of interest. This situation is relevant for branching ratios and the elements of unitary matrices such as the CKM matrix. 
Glen Cowan, Kyle Cranmer, Eilam Gross, Ofer Vitells
physics.data-an hep-ex