Introduces Gaussian Process eigenmodes to unify statistical and systematic template uncertainties, replacing per-bin factors with truncated leading modes while containing Barlow-Beeston as a limiting case.
Their discrete profiling method treats the function-form index as a discrete nuisance parameter, profiled alongside µby taking the likelihood envelope across candidate func- tions
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Gaussian Process Eigenmodes for Statistical and Systematic Uncertainties in Template Fits
Introduces Gaussian Process eigenmodes to unify statistical and systematic template uncertainties, replacing per-bin factors with truncated leading modes while containing Barlow-Beeston as a limiting case.