Charm meson scattering cross sections by pion and rho meson Academic Article uri icon


  • Using the local flavor SU(4) gauge invariance in the limit of vanishing vector-meson masses, we extend our previous study of charm-meson scattering cross sections by pion and rho meson, which is based only on the pseudoscalar-pseudoscalar-vector meson couplings, to include also contributions from the couplings among three vector mesons and among four particles. We find that diagrams with light-meson exchanges usually dominate the cross sections. For the processes considered previously, the additional interactions lead only to diagrams involving charm-meson exchanges and contact interactions, and the cross sections for these processes are thus not much affected. Nevertheless, these additional interactions introduce new processes with light-meson exchanges and increase significantly the total scattering cross sections of charm mesons by pion and rho meson. 2001 Elsevier Science B.V.

published proceedings

  • Nuclear Physics A

author list (cited authors)

  • Lin, Z., Di, T. G., & Ko, C. M.

citation count

  • 32

complete list of authors

  • Lin, Ziwei||Di, TG||Ko, CM

publication date

  • July 2001