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Extracting the ρ meson wavefunction from HERA data

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Abstract

We extract the light-cone wavefunctions of the ρ meson using the HERA data on diffractive ρ photoproduction. We find good agreement with predictions for the distribution amplitude based on QCD sum rules and from the lattice. We also find that the data prefer a transverse wavefunction with enhanced end-point contributions.

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Authors and Affiliations

  1. School of Physics & Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K.

    J. R. Forshaw

  2. Département de Physique et d’Astronomie, Université de Moncton, Moncton, N-B. E1A 3E9, Canada

    R. Sandapen

Authors
  1. J. R. Forshaw
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  2. R. Sandapen
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Correspondence to R. Sandapen.

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ArXiv ePrint: 1007.1990

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Forshaw, J.R., Sandapen, R. Extracting the ρ meson wavefunction from HERA data. J. High Energ. Phys. 2010, 37 (2010). https://doi.org/10.1007/JHEP11(2010)037

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  • DOI: https://doi.org/10.1007/JHEP11(2010)037

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