In-medium modification and decay asymmetry of omega mesons in cold nuclear matter
arXiv:0709.1393 · doi:10.1103/PhysRevC.76.065211
Abstract
We discuss an asymmetry of the decay $Ï->e^+e^-$ in nuclear matter with respect to the electron and positron energies. This asymmetry is sensitive to the properties of the $Ï$ meson self-energy and, in particular, it has a non-trivial dependence on the $Ï$ energy and momentum. Therefore, this asymmetry may serve as a powerful tool in studying the properties of the $Ï$ meson in the nuclear medium.
19 pages, 9 figures