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arXiv · 0909.4849

Dispersion sum rules for pion polarizabilities

Lev Fil'kov·Viktor Kashevarov
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Abstract

An analysis of different dispersion sum rules (DSRs) for the dipole and quadrupole pion polarizabilities is carried out. We prove the absence of additional spurious singularities in these approaches. The results of the calculations of the polarizabilities in the framework of DSRs are compared with ChPT predictions and with data obtained in different experiments.

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Lev Fil'kov, Viktor Kashevarov. 2009-10-09. Dispersion sum rules for pion polarizabilities. https://arxiv.org/abs/0909.4849

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