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The simplified likelihood framework

Buckley, Andy and Citron, Matthew and Fichet, Sylvain and Kraml, Sabine and Waltenberger, Wolfgang and Wardle, Nicholas (2019) The simplified likelihood framework. Journal of High Energy Physics, 2019 (4). Art. No. 64. ISSN 1029-8479.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Kraml, Sabine0000-0002-2613-7000
Additional Information:© 2019 The Author(s). This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Article funded by SCOAP3. Received: October 2, 2018; Revised: February 16, 2019; Accepted: March 31, 2019; Published: April 8, 2019. This work has been initiated at the LHC Chapter II: The Run for New Physics workshop held at IIP Natal, Brazil, 6-17 Nov. 2017. We thank the IIP Natal for hosting the workshop and creating a most inspiring working atmosphere. AB is supported by a Royal Society University Research Fellowship grant. MC is supported by the US Department of Energy under award number DE-SC0011702. SF is supported by the São Paulo Research Foundation (FAPESP) under grants #2011/11973, #2014/21477-2 and #2018/11721-4. SK is supported by the IN2P3 project "Théorie LHCiTools" and the CNRS-FAPESP collaboration grant PRC275431. NW is funded through a Science and Techologies Facility Council (STFC) Fellowship grant #ST/N003985/1.
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0011702
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)2011/11973
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)2014/21477-2
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)2018/11721-4
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)Théorie LHCiTools
Centre National de la Recherche Scientifique (CNRS)PRC275431
Science and Technology Facilities Council (STFC)ST/N003985/1
Subject Keywords:Beyond Standard Model; Hadron-Hadron scattering (experiments)
Issue or Number:4
Record Number:CaltechAUTHORS:20190409-091330064
Persistent URL:
Official Citation:Buckley, A., Citron, M., Fichet, S. et al. J. High Energ. Phys. (2019) 2019: 64.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94576
Deposited By: Tony Diaz
Deposited On:09 Apr 2019 16:43
Last Modified:11 Feb 2020 18:38

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