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Physical-Region Constraints on Low-Energy Partial-Wave Amplitudes

Ralph Roskies

  • Physics Department, Yale University, New Haven, Connecticut 06520

Phys. Rev. D 2, 247 – Published 1 July, 1970

DOI: https://doi.org/10.1103/PhysRevD.2.247

Abstract

On the basis of analyticity, crossing, and positivity of the imaginary parts of the partial-wave amplitudes, we derive inequalities on integrals involving the low partial waves of elastic π0π0 scattering in the physical region. The integrals are sensitive only to the low-energy region, and can therefore be tested once a phase-shift analysis is given. The relations can be used to discriminate between various proposed π0π0 phase shifts.

References (13)

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