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Near-threshold production of ω -mesons in the pn→ dω reaction

2003/05/31 by S. Barsov, I. Lehmann, R. Schleichert +29 · 1 citation
Physics and Astronomy · #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-ex

paper · pdf · doi:10.1140/epja/i2003-10220-2

published as Eur.Phys.J.A21:521-527,2004 · 7 pages, 8 figures; second approach to describe the background has been added; results changed insignificantly, EPJ in press

arxiv created 2004/06/17 · openalex publication_date 2004/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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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