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On the eve of the LHC: Conceptual questions in high-energy physics

Alexei Grinbaum

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Naturalness, the autonomy of scales, and the 125GeV Higgs.Porter Williams - 2015 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 51:82-96.details The recent discovery of the Higgs at 125 GeV by the ATLAS and CMS experiments at the LHC has put significant pressure on a principle which has guided much theorizing in high energy physics over the last 40 years, the principle of naturalness. In this paper, I provide an explication of the conceptual foundations and physical significance of the naturalness principle. I argue that the naturalness principle is well-grounded both empirically and in the theoretical structure of effective field theories, and (...) Download Export citation Bookmark 34 citations
(2 other versions)Whence the Effectiveness of Effective Field Theories?Alexander Franklin - 2018 - British Journal for the Philosophy of Science 71 (4):1235-1259.details Effective quantum field theories are effective insofar as they apply within a prescribed range of length-scales, but within that range they predict and describe with extremely high accuracy and precision. The effectiveness of EFTs is explained by identifying the features—the scaling behaviour of the parameters—that lead to effectiveness. The explanation relies on distinguishing autonomy with respect to changes in microstates, from autonomy with respect to changes in microlaws, and relating these, respectively, to renormalizability and naturalness. It is claimed that the (...) Download Export citation Bookmark 12 citations

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