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arxiv: 1306.4440 · v1 · pith:KBWRYCFOnew · submitted 2013-06-19 · ⚛️ nucl-th

Asymptotic Approximation for Bethe-Salpeter Equation and its Applications to Deuteron

classification ⚛️ nucl-th
keywords equationapproximationasymptoticbethe-salpeterdeuteronamplitudeapplicationsbinding
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Bethe-Salpeter equation is solved for bound state composed of two fermions mediated by pion exchange force of the pseudovector coupling. Expanding the amplitude by gamma matrices the one-dimensional integral equation is derived. It reproduces the binding energy of deuteron. The relation with the quadrupole moment is also discussed in the framework of the asymptotic approximation.

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