Vector mesons polarization versus color transparency

Abstract

Vector mesons V = ρ, ω, φ can be transversely (helicity λ = ±1) or longitudinally (λ = 0) polarized. Can vector mesons polarization influence on their interaction with nucleons and nuclei? The meson-nucleon total cross sections can be extracted by measuring the absorption of mesons in production off nuclei as the nuclear absorption depends on the meson-nucleon total cross section and consequently on the vector meson polarization. Latter on I will discuss the possibility of difference in interaction of transverse and longitudinally polarized vector mesons with nucleons and experiments in which such difference can be detected.