Inverse amplitude method in pp scattering in chiral perturbation theory to two loops

نویسندگان

  • J. Nieves
  • M. Pavón Valderrama
  • E. Ruiz Arriola
چکیده

The inverse amplitude method is used to unitarize the two-loop pp scattering amplitudes of SU~2! chiral perturbation theory in the I50,J50,I51,J51, and I52,J50 channels. An error analysis in terms of the low energy one-loop parameters l̄ 1,2,3,4 and existing experimental data is undertaken. A comparison to standard resonance saturation values for the two-loop coefficients b̄1,2,3,4,5,6 is also carried out. Crossing violations are quantified and the convergence of the expansion is discussed.

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تاریخ انتشار 2002