Near-threshold production of omega mesons in the pn -> d omega reaction

Abstract

The first measurement of the p n -> d omega total cross section has been achieved at mean excess energies of Q = 28 and 57 MeV by using a deuterium cluster-jet target. The momentum of the fast deuteron was measured in the ANKE spectrometer at COSY-Juelich and that of the slow "spectator" proton p(sp) from the p d -> p(sp) d omega reaction in a silicon telescope placed close to the target. The cross sections lie above those measured for p p -> p p omega but seem to be below theoretical predictions.

arXiv comment7 pages, 8 figures; second approach to describe the background has been added; results changed insignificantly, EPJ in press

References in corpus (4)

• Near-Threshold Production of omega Mesons in the pp -> pp omega Reaction
• Production of $\omega$ mesons in proton-proton collisions
• The reactions p + n --> d + omega and p + n --> d + phi near threshold
• Spectator detection for the measurement of proton neutron interactions at ANKE

Cited by in corpus (14)

• Formation of eta-prime(958)-mesic nuclei by (p,d) reaction
• Determination of Deuteron Beam Polarizations at COSY
• Precision measurement of the quasi-free pn->dphi reaction close to threshold
• Combined Analysis of Near-Threshold Production of omega and phi Mesons in Nucleon-Nucleon Collisions within an Effective Meson-Nucleon Model
• Inclusive K^+ meson production in proton-nucleus interactions
• Near threshold production of the eta meson via the quasi-free pn --> pn eta reaction
• Analysis of Dilepton Invariant Mass Spectrum in C+C at 2 and 1 AGeV
• Study of omega-meson production in pp collisions at ANKE
• A method to disentangle single- and multi-meson production in missing mass spectra from quasi-free pn --> pn X reactions
• On the sign of the pi-rho-omega coupling constant
• Spectroscopy of ${\eta }^{\prime }$-nucleus bound states at GSI and FAIR --- very preliminary results and future prospects ---
• Spectroscopy of eta' mesic nuclei with (p,d) reaction
• Tensor polarization of $\omega$ produced at threshold in $p-p$ collisions
• Comparison of inclusive K+ production in proton-proton and proton-neutron collisions