Actions for Excited-State Effective Masses in Lattice QCD [electronic resource].

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Excited-State Effective Masses in Lattice QCD [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
074,506 : digital, PDF file
Additional Creators
Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We apply black-box methods, i.e. where the performance of the method does not depend upon initial guesses, to extract excited-state energies from Euclidean-time hadron correlation functions. In particular, we extend the widely used effective-mass method to incorporate multiple correlation functions and produce effective mass estimates for multiple excited states. In general, these excited-state effective masses will be determined by finding the roots of some polynomial. We demonstrate the method using sample lattice data to determine excited-state energies of the nucleon and compare the results to other energy-level finding techniques.
Report Numbers
E 1.99:jlab-thy-09-957
E 1.99: doe/or/23177-0653
doe/or/23177-0653
jlab-thy-09-957
Subject(s)
Note
Published through SciTech Connect.
10/01/2009.
"jlab-thy-09-957"
" doe/or/23177-0653"
Physical Review D 80 ISSN 1550-7998; PRVDAQ FT
George Fleming, Saul Cohen, Huey-Wen Lin.
Funding Information
AC05-06OR23177
View MARC record | catkey: 23504664