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The Electron in Three-Dimensional Momentum Space

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Abstract

We study the electron as a system composed of an electron and a photon and derive the leading-twist transverse-momentum-dependent distribution functions for both the electron and photon in the dressed electron, thereby offering a three-dimensional description of the dressed electron in momentum space. To obtain the distribution functions, we apply both the formalism of light-front wave function overlap representation and the diagrammatic approach; we discuss the comparison of our results between light-cone gauge and Feynman gauge, discussing the role of the Wilson lines to obtain gauge-independent results. We provide examples of plots of the computed distributions.

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Authors and Affiliations

  1. Dipartimento di Fisica, Università degli Studi di Pavia, and INFN, Sezione di Pavia, 27100, Pavia, Italy

    L. Mantovani, A. Bacchetta & B. Pasquini

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  1. L. Mantovani
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  2. A. Bacchetta
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  3. B. Pasquini
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Correspondence to L. Mantovani.

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Mantovani, L., Bacchetta, A. & Pasquini, B. The Electron in Three-Dimensional Momentum Space. Few-Body Syst 57, 515–519 (2016). https://doi.org/10.1007/s00601-016-1066-4

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  • DOI: https://doi.org/10.1007/s00601-016-1066-4

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