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PIRSA:13100107

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https://pirsa.org/13100107

Heavy particle effective field theory: formalism, dark matter and the proton size puzzle

Hill, R. (2013). Heavy particle effective field theory: formalism, dark matter and the proton size puzzle. Perimeter Institute for Theoretical Physics. https://pirsa.org/13100107

Richard Hill University of Kentucky

Talk numberPIRSA:13100107
DOI10.48660/13100107
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Heavy particle expansions, familiar from heavy quark physics, have found important applications in the analysis of dark matter candidates and their interactions with the Standard Model. From a different direction, precision spectroscopy of muonic hydrogen has challenged QED and required more precise knowledge of proton structure. These problems have forced a closer examination of the construction of general heavy particle lagrangians at high orders in the 1/M expansion, and in the absence of known ultraviolet completions. Key aspects of this formalism, including the emergence of Lorentz invariance from "nonrelativistic" lagrangians, are reviewed, and several applications are presented. A status report on the proton radius puzzle is given.