Electromagnetic corrections for the analysis of low energy π−p scattering data
نویسنده
چکیده
We calculate the electromagnetic corrections to the isospin invariant mixing angle and to the two eigenphases for the s-, p1/2and p3/2-partial waves for π −p elastic and charge exchange scattering. These corrections have to be applied to the nuclear quantities in order to obtain the two hadronic phase shifts for each partial wave. The calculation uses relativised Schrödinger equations containing the sum of an electromagnetic potential and an effective hadronic potential. The mass differences between π− and π0 and between p and n are taken into account. We compare our results with those of previous calculations and estimate the uncertainties in the corrections. PACS: 13.75.Gx,25.80.Dj
منابع مشابه
F - 13288 Marseille – Cedex 9 Electromagnetic Corrections to Low - Energy π − π Scattering †
Electromagnetic corrections to the low-energy π+π− → π0π0 scattering amplitude at next-to-leading order in the chiral expansion are reviewed. Their effects on the corresponding scattering lengths are estimated and compared to the two-loop strong interaction contributions. Key-Words: Chiral perturbation theory, Pion, Electromagnetic corrections. Contribution to the Eighth International Symposium...
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