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arXiv · 0810.4954

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

Antonio O. Bouzas
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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.

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Antonio O. Bouzas. 2008-10-27. Absorptive part of meson--baryon scattering amplitude and baryon polarization in chiral perturbation theory. https://doi.org/10.1142/s0218301308010544

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