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arXiv · 2506.22153

Space-like pion off-shell form factors in the Bethe-Salpeter approach

S. Bondarenko·M. Slautin
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Abstract

In the paper, the off-shell electromagnetic pion form factors in the Bethe-Salpeter formalism are considered. The separable kernel of the first rank quark-antiquark interaction is used to solve the equation analytically. The semi-off-shell pion form factors \( F_1 \) and \( F_2 \), which are related to each other by the Ward-Takahashi identity, are calculated. The obtained off-shell form factors as well as static properties of the pion are compared with the results of other authors.

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S. Bondarenko, M. Slautin. 2025-06-27. Space-like pion off-shell form factors in the Bethe-Salpeter approach. https://arxiv.org/abs/2506.22153

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