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arXiv · 1405.7810

Relative energy dependence of the Bethe-Salpeter amplitude in two-dimensional massless QED

Tomasz Radozycki
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Abstract

The exact $q\bar{q}$ Bethe-Salpeter bound state amplitude is investigated in the space of relative energy $E$ for fixed value of relative position. By means of approximate analysis it is shown to possess singularities in $E$ whenever one of the quarks reaches the energy threshold for the creation of certain number of Schwinger bosons. These results are afterwards confirmed by numerical plots.

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Tomasz Radozycki. 2014-08-14. Relative energy dependence of the Bethe-Salpeter amplitude in two-dimensional massless QED. https://doi.org/10.1140/epjc%2Fs10052-014-3037-6

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