Extrapolation of lattice QCD results beyond the power-counting regime [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 2004.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- 168.9 Kilobytes pages : digital, PDF file
- Additional Creators:
- Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- Resummation of the chiral expansion is necessary to make accurate contact with current lattice simulation results of full QCD. Resummation techniques including relativistic formulations of chiral effective field theory and finite-range regularization (FRR) techniques are reviewed, with an emphasis on using lattice simulation results to constrain the parameters of the chiral expansion. We illustrate how the chiral extrapolation problem has been solved and use FRR techniques to identify the power-counting regime (PCR) of chiral perturbation theory. To fourth-order in the expansion at the 1% tolerance level, we find 0 ≤ m{sub π} ≤ 0.18 GeV for the PCR, extending only a small distance beyond the physical pion mass.
- Report Numbers:
- E 1.99:jlab-thy-05-294
E 1.99: doe/er/40150-3044
doe/er/40150-3044
jlab-thy-05-294 - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
10/01/2004.
"jlab-thy-05-294"
" doe/er/40150-3044"
Baryons 2004, Palaiseau (FR), 10/25/2004--10/29/2004.
R.D. Young; A.W. Thomas; D.B. Leinweber. - Funding Information:
- AC05-84ER40150
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