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The three-particle $N\pi\pi$-state contribution to the QCD two-point function of standard nucleon interpolating fields is computed to leading order in chiral perturbation theory. Using the experimental values for two low-energy… Click to show full abstract
The three-particle $N\pi\pi$-state contribution to the QCD two-point function of standard nucleon interpolating fields is computed to leading order in chiral perturbation theory. Using the experimental values for two low-energy coefficients the impact of this contribution on lattice QCD calculations of the nucleon mass is estimated. The impact is found to be at the per mille level at most and negligible in practice.
Keywords:
three particle;
contribution;
two point;
state contribution;
particle state;
point function
Journal Title: Physical Review D
Year Published: 2018
Link to full text (if available)
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Journal Title: Physical Review D
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!