High Energy Physics Seminar - Richard Hill (University of Chicago) "Heavy particle effective field theory: formalism and new applications to dark matter and atoms"

Richard Hill with white wall and computer screen behind him

October 2, 2013

2:30PM - 3:30PM

4138 Physics Research Building

2013-10-02 14:30:00 2013-10-02 15:30:00 High Energy Physics Seminar - Richard Hill (University of Chicago) "Heavy particle effective field theory: formalism and new applications to dark matter and atoms" 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, preciion 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 reviewd, and several applicatins are presented.  A status report on the proton radius puzzle is given.  4138 Physics Research Building America/New_York public

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, preciion 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 reviewd, and several applicatins are presented. A status report on the proton radius puzzle is given.