Abstract
We compute asymptotic expansions for the vector and the tensor current in the limit of large quark masses in perturbative QCD using the framework of the expansion by subgraphs. We apply the results to estimate the influence of heavy quarks on the nucleon’s electromagnetic and tensor form factors.
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Polyakov, M.V., Sieverding, J. Heavy-quark-mass expansion of vector and tensor currents and intrinsic charm in nucleon form factors. J. High Energ. Phys. 2016, 92 (2016). https://doi.org/10.1007/JHEP01(2016)092
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DOI: https://doi.org/10.1007/JHEP01(2016)092