Convergence of the chiral expansion for the nucleon mass
- 6 November 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 74 (9) , 097501
- https://doi.org/10.1103/physrevd.74.097501
Abstract
A number of papers recently have used fourth-order chiral perturbation theory to extrapolate lattice data for the nucleon mass; the process seems surprisingly successful even for large pion masses. This paper shows that the inclusion of the fifth-order terms spoils the agreement.Keywords
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