Absorptive part of meson--baryon scattering amplitude and baryon polarization in chiral perturbation theory

Abstract

We compute the spin asymmetry and polarization of the final-state baryon in its rest frame in two-body meson--baryon low-energy scattering with unpolarized initial state, to lowest non-trivial order in BChPT. The required absorptive amplitudes are obtained analytically at one-loop level. We discuss the polarization results numerically for several meson--baryon processes. Even at low energies above threshold, where BChPT can reasonably be expected to be applicable, sizable values of polarization are found for some processes.

References in corpus (3)

• Chiral Perturbation Theory and Baryon Properties
• Chiral perturbation theory
• A Chiral Perturbation Theory Primer

Cited by in corpus (1)

• Polarized $p{K}^{-}$ scattering in Unitary Baryon Chiral Perturbation Theory