Chiral extrapolation of nucleon wave function normalization constants

Details Chiral extrapolation of nucleon wave function normalization constants Chiral extrapolation of nucleon wave function normalization constants

2011-06-17

arxiv.org/abs/1106.3440v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

Within the framework of two-flavor covariant baryon chiral perturbation theory we have expressed the Chernyak-Zhitnitsky, Ioffe and Dosch currents in terms of chiral fields to provide leading one-loop extrapolation formulae for the leading and next-to-leading twist normalization constants $f_N$, $\lambda_1$ and $\lambda_2$. Finite volume effects due to pion loops have been taken into account. The occurring low energy constants are fitted to data obtained from recent lattice QCD simulations in order to extract the values at the physical point.

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