Electromagnetic Corrections to Charged Pion Scattering at Low Energies

Details Electromagnetic Corrections to Charged Pion Scattering at Low Energies Electromagnetic Corrections to Charged Pion Scattering at Low Energies

2002-01-07

arxiv.org/abs/hep-ph/0201033v1

Phys.Lett. B532 (2002) 55-62

Physics

High Energy Physics

High Energy Physics - Phenomenology

LateX2e, 10 pages, 2 figures

Scientific paper

10.1016/S0370-2693(02)01499-5

The electromagnetic corrections to the low energy scattering amplitude
involving charged pions only are investigated at leading and next-to-leading
orders in the two-flavour chiral expansion. As an application, the
corresponding variation in the strong $2S-2P$ level shift is evaluated. The
relative variation is of the order of 5%.

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