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Higgs Discovery and the Look Elsewhere Effect

Published online by Cambridge University Press:  01 January 2022

Abstract

The discovery of the Higgs particle required a signal of 5σ significance. The rigid application of that condition is a convention that disregards more specific aspects of the given experiment. In particular, it does not account for the characteristics of the look elsewhere effect in the individual experimental context. The paper relates this aspect of data analysis to the question as to what extent theoretical reasoning should be admitted to play a role in the assessment of the significance of empirical data.

Type
Research Article
Copyright
Copyright © The Philosophy of Science Association

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Footnotes

I am very grateful to Bob Cousins, Luca Moretti, and a number of undisclosed reviewers for very helpful comments and suggestions. The work was in part financed by the Austrian Research Fund (FWF) project no. P22811-G17.

References

ATLAS. 2011. The ATLAS and CMS Collaborations. ATLAS-CONF-2011-157.Google Scholar
Collaboration, ATLAS. 2012. “Observation of a New Particle in the Search for the Standard Model Higgs Boson with the ATLAS Detector at the LHC.” Physics Letters B 716:129.Google Scholar
Collaboration, CMS. 2012. “Observation of a New Boson at a Mass of 125 GeV with the CMS Experiment at the LHC.” Physics Letters B 716:3061.Google Scholar
Cousins, Robert D. 1995. “Why Isn’t Every Physicist a Bayesian?American Journal of Physics 63:398.CrossRefGoogle Scholar
Cousins, Robert D. 2007. “Annotated Bibliography of Some Papers on Combining Significances or p-Values.” PhilSci Archive, Cornell University. arXiv:07052209v2.Google Scholar
Cousins, Robert D. 2013. “The Jeffrey’s-Lindley Paradox and Discovery Criteria in High Energy Physics.” Synthese, online first, doi:10.1007s11229-014-0525-z.Google Scholar
Dawid, Richard. 2014. “Bayesian Perspectives on the Discovery of the Higgs Particle.” Paper presented at the “Evidence, Discovery, Proof: Measuring the Higgs Particle” workshop, University of South Carolina, April.Google Scholar
Englert, Francois, and Brout, Robert 1964. “Broken Symmetry and the Mass of Gauge Vector Mesons.” Physical Letters Review 13:321–23.CrossRefGoogle Scholar
Feldman, Gary J. 2006. “Concluding Talk: Physics.” Paper presented at PHYSTAT 05, “Statistical Problems in Particle Physics, Astrophysics and Cosmology,” Oxford, September 12–15, 2005.Google Scholar
Franklin, Alan. 2013. Shifting Standards: Experiments in Particle Physics in the Twentieth Century. Pittsburgh: University of Pittsburgh Press.CrossRefGoogle Scholar
Higgs, Peter. 1964. “Broken Symmetries, Massless Particles and Gauge Fields.” Physics Letters 12:132–33.CrossRefGoogle Scholar
Karaca, Koray. 2013. “The Construction of the Higgs Mechanism and the Emergence of the Electroweak Theory.” Studies in History and Philosophy of Science B 44:116.CrossRefGoogle Scholar
Lyons, Louis. 2013a. “Bayes and Frequentism.” PhilSci Archive, Cornell University. arXiv:1301.1273.Google Scholar
Lyons, Louis 2013b. “Discovering the Significance of 5 sigma.” PhilSci Archive, Cornell University. arXiv:1310.1284.Google Scholar
Mayo, Deborah. 1996. Error and the Growth of Experimental Knowledge. Chicago: University of Chicago Press.CrossRefGoogle Scholar
Mayo, Deborah, and Spanos, Aris. 2006. “Severe Testing as a Basic Concept in a Neyman-Pearson Philosophy of Induction.” British Journal for the Philosophy of Science 57:323–57.CrossRefGoogle Scholar
Read, A. L. 2002. “Presentation of Search Results: The CLS Technique.” Journal of Physics G 28:2693–704.CrossRefGoogle Scholar
Staley, Kent. 2004. The Evidence for the Top Quark: Objectivity and Bias in Collaborative Experimentation. Cambridge: Cambridge University Press.Google Scholar