We hope to improve excited-state extraction for our research in beyond the standard model composite Higgs dynamics. We propose an algebraic method of extracting excited states from lattice correlation functions, which also is useful to lattice gauge theorists in general and to data analysts investigating exponentially decaying signals. Instead of fitting to a linear combination of exponentials, we adopt a variant of Prony's method to obtain M energies (exponential decay rates) by finding the roots of an Mth order polynomial. I will describe the challenges faced in this approach and demonstrate our attempts to overcome them.
University
Yale University
Abstract Title
Extracting Excited States From Lattice Correlation Functions
Abstract Author(s)
Kimberly Cushman, George Fleming
Username
cushman2018
First Name
Kimberly
Last Name
Cushman
Program
csgf
Area of Study
Physics
Poster Number
43
Abstract Type
poster
Poster Group
Group 1

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