Exclusive meson production at HERMES
نویسنده
چکیده
mesons on unpolarized hydrogen and deuterium targets is studied in the kinematic region of Q2 > 1.0 GeV2, 3.0 GeV < W < 6.3 GeV, and −t ′ < 0.2 GeV2, while for ρ0-meson production on a transversely polarized hydrogen target −t ′ < 0.4 GeV2 is used. Spin-density matrix elements for ω production are presented in projections of Q2 or −t ′, while the ratios of the helicity amplitudes for the reaction γ∗ + p → ρ0 + p are obtained in the entire kinematic region.
منابع مشابه
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تاریخ انتشار 2016