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Chiral extrapolation of nucleon wave function normalization constants

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Abstract

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 , λ1 and λ2. 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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Authors and Affiliations

  1. Universität Regensburg, Regensburg, Germany

    P. Wein, P. C. Bruns, T. R. Hemmert & A. Schäfer

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  1. P. Wein
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  2. P. C. Bruns
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  3. T. R. Hemmert
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  4. A. Schäfer
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Correspondence to P. Wein.

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Communicated by H. Wittig

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Wein, P., Bruns, P.C., Hemmert, T.R. et al. Chiral extrapolation of nucleon wave function normalization constants. Eur. Phys. J. A 47, 149 (2011). https://doi.org/10.1140/epja/i2011-11149-5

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  • DOI: https://doi.org/10.1140/epja/i2011-11149-5

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