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

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.

Event Type: 
Seminar
Collection/Series: 
Scientific Area(s): 
Speaker(s): 
Event Date: 
Friday, October 18, 2013 - 13:00 to 14:30
Location: 
Bob Room