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The simplified likelihood framework

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Author(s):
Buckley, Andy ; Citron, Matthew ; Fichet, Sylvain ; Kraml, Sabine ; Waltenberger, Wolfgang ; Wardle, Nicholas
Total Authors: 6
Document type: Journal article
Source: Journal of High Energy Physics; v. N/A, n. 4, p. 27-pg., 2019-04-08.
Abstract

We discuss the simplified likelihood framework as a systematic approximation scheme for experimental likelihoods such as those originating from LHC experiments. We develop the simplified likelihood from the Central Limit Theorem keeping the next-to-leading term in the large N expansion to correctly account for asymmetries. Moreover, we present an efficient method to compute the parameters of the simplified likelihood from Monte Carlo simulations. The approach is validated using a realistic LHC-like analysis, and the limits of the approximation are explored. Finally, we discuss how the simplified likelihood data can be conveniently released in the HepData error source format and automatically built from it, making this framework a convenient tool to transmit realistic experimental likelihoods to the community. (AU)

FAPESP's process: 18/11721-4 - Particle physics and Gravity Beyond the Standard Model: Warped structures, Chameleons and Holography
Grantee:Sylvain Pierre Joseph Fichet
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 14/21477-2 - Particle physics at the TeV scale and beyond: models and interpretations
Grantee:Sylvain Pierre Joseph Fichet
Support Opportunities: Scholarships in Brazil - Post-Doctoral