Mass Number Dependence of the Real Part of the Forward Pion-Nucleus Elastic Scattering Amplitude
نویسندگان
چکیده
منابع مشابه
The pion-pion scattering amplitude
We obtain reliable ππ scattering amplitudes consistent with experimental data, both at low and high energies, and fulfilling appropriate analyticity properties. We do this by first fitting experimental low energy (s ≤ 1.42GeV) phase shifts and inelasticities with expressions that incorporate analyticity and unitarity. In particular, for the S wave with isospin 0, we discuss in detail several se...
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We show that if for fixed negative (physical) square of the momentum transfer t, the differential cross-section dσ dt tends to zero and if the total cross-section tends to infinity, when the energy goes to infinity, the real part of the even signature amplitude cannot have a constant sign near t = 0. ∗) URA 14-36 du CNRS, associée à L’Ecole Normale Supérieure de Lyon et à l’Université de Savoie...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1976
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.55.964