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

Authors :: Barsov, S.
Lehmann, I.
Schleichert, R.
Wilkin, C.
Buescher, M.
Dymov, S.
Golubeva, Ye.
Hartmann, M.
Hejny, V.
Kacharava, A.
Keshelashvili, I.
Khoukaz, A.
Komarov, V.
Kondratyuk, L.
Lang, N.
Macharashvili, G.
Mersmann, T.
Merzliakov, S.
Mussgiller, A.
Nioradze, M.
Petrus, A.
Stroeher, H.
Uzikov, Y.
Zalikhanov, B.
Publication Year :: 2003
Publisher :: arXiv, 2003.
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.<br />7 pages, 8 figures; second approach to describe the background has been added; results changed insignificantly, EPJ in press