Campostrini, M. and Pelissetto, A. and Rossi, P. and Vicari, E. (1997) On the evaluation of universal non-perturbative constants in O(N) sigma models. Physics letters. B , B402 . p. 141. ISSN 0370-2693
Full text not available from this repository.Official URL: http://arxiv.org/abs/hep-lat/9702010v1
Abstract
We investigate the relation between on-shell and zero-momentum non-perturbative quantities entering the parametrization of the two-point Green's function of two-dimensional non-linear O(N) sigma models. We present accurate estimates of ratios of mass-scales and renormalization constants, obtained by an analysis of the strong-coupling expansion of the two-point Green's function. These ratios allow to connect exact known on-shell results with typical zero-momentum lattice evaluations. Our results are supported by the 1/N-expansion.
| Item Type: | Article |
|---|---|
| Additional Information: | Imported from arXiv |
| Subjects: | Area02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici |
| Divisions: | Dipartimenti (until 2012) > DIPARTIMENTO DI FISICA " E. FERMI" |
| Depositing User: | dott.ssa Sandra Faita |
| Date Deposited: | 09 Apr 2015 15:52 |
| Last Modified: | 09 Apr 2015 15:52 |
| URI: | http://eprints.adm.unipi.it/id/eprint/1828 |
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