New Sum Rule Determination of the Nucleon Mass

Details New Sum Rule Determination of the Nucleon Mass New Sum Rule Determination of the Nucleon Mass

2010-10-14

arxiv.org/abs/1010.2869v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages

Scientific paper

A new QCD calculation of the mass of the nucleon is presented. It makes use of a polynomial kernel in the dispersion integrals tailored to practically eliminate the contribution of the unknown 1/2+ and 1/2- continuum. This approach avoids the arbitrariness and other drawbacks attached to the Borel kernel used in previous sum rules calculations. Our method yields stable results for the nucleon mass and coupling for standard values of the condensates. The prediction of the nucleon mass m_{N}=(0.945 \pm .045) GeV is in good agreement with experiment.

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