| ID:
543302.0,
MPI für Physik / MPI für Physik |
| Low-energy couplings of QCD from topological zero-mode wave functions |
| Authors: | Giusti, L.; Hernandez, P.; Laine, M.; Weisz, P.; Wittig, H. |
| Date of Publication (YYYY-MM-DD): | 2004 |
| Title of Journal: | Journal of High Energy Physics |
| Journal Abbrev.: | JHEP |
| Issue / Number: | 0401 |
| Start Page: | 003 |
| Audience: | Not Specified |
| Intended Educational Use: | No |
| Abstract / Description: | By matching 1/m^2 divergences in finite-volume two-point correlation functions of the scalar or pseudoscalar densities with those obtained in chiral perturbation theory, we derive a relation between the Dirac operator zero-mode eigenfunctions at fixed non-trivial topology and the low-energy constants of QCD. We investigate the feasibility of using this relation to extract the pion decay constant, by computing the zero-mode correlation functions on the lattice in the quenched approximation and comparing them with the corresponding expressions in quenched chiral perturbation theory. |
| Classification / Thesaurus: | Field Theory |
| Comment of the Author/Creator: | 31 pages. v2: references and a small clarification added; published version |
| External Publication Status: | published |
| Document Type: | Article |
| Communicated by: | N.N. |
| Affiliations: | MPI für Physik
|
| Identifiers: | LOCALID:MPP-2003-129
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/hep-lat/0312012
URL:http://publications.mppmu.mpg.de/?action=search&mp... |
| Full Text: |
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