MEASUREMENT OF THE omega MESON POLARIZATION IN THE pd -> He-3 omega REACTION AT 1360 AND 1450 MeV

• The tensor polarization of omega mesons produced in the pd -> He-3 omega reaction has been measured at two energies near threshold. The 3 He nuclei were detected in coincidence with the pi(0)pi(+)pi(-) or pi(0)gamma decay products of the omega. The omega mesons are found to be unpolarised, which is in complete contrast to the case of phi-meson production from the corresponding reaction pd -> He-3 phi. This brings into question the applicability of the Okubo-Zweig-Iizuka rule when comparing the production of vector mesons in low energy hadronic reactions.

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NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

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Physics

Fysik

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