Chiral Perturbation Theory and Finite Size Effects on the Nucleon Mass in unquenched QCD
A. Ali Khan, T. Bakeyev, M. G\"ockeler, T.R. Hemmert, R. Horsley, A.C., Irving, D. Pleiter, P.E.L. Rakow, G. Schierholz, H. St\"uben (the QCDSF, Collaboration, the UKQCD Collaboration)
TL;DR
This paper investigates how finite size effects influence nucleon masses within chiral perturbation theory and compares these predictions with lattice QCD results to improve chiral extrapolation methods.
Contribution
It provides a detailed calculation of finite size effects on nucleon masses and evaluates their impact on lattice QCD data analysis.
Findings
Finite size effects significantly affect nucleon mass calculations.
Chiral extrapolation formulas are refined based on theoretical predictions.
Comparison with lattice results validates the theoretical approach.
Abstract
We calculate finite size effects on nucleon masses in chiral perturbation theory. We confront the theoretical predictions with N_f=2 lattice results and discuss chiral extrapolation formulae.
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