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

S. Barsov·I. Lehmann·R. Schleichert·C. Wilkin·M. Buescher·S. Dymov·Ye. Golubeva·M. Hartmann·V. Hejny·A. Kacharava·I. Keshelashvili·A. Khoukaz·V. Komarov·L. Kondratyuk·N. Lang·G. Macharashvili·T. Mersmann·S. Merzliakov·A. Mussgiller·M. Nioradze·A. Petrus·H. Stroeher·Y. Uzikov·B. Zalikhanov
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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.

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S. Barsov, I. Lehmann, R. Schleichert, C. Wilkin, M. Buescher, S. Dymov, Ye. Golubeva, M. Hartmann, V. Hejny, A. Kacharava, I. Keshelashvili, A. Khoukaz, V. Komarov, L. Kondratyuk, N. Lang, G. Macharashvili, T. Mersmann, S. Merzliakov, A. Mussgiller, M. Nioradze, A. Petrus, H. Stroeher, Y. Uzikov, B. Zalikhanov. 2004-06-17. Near-threshold production of omega mesons in the pn -> d omega reaction. https://doi.org/10.1140/epja%2Fi2003-10220-2

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