Omega- and phi-meson production in p n -> d M reactions near threshold and OZI-rule violation

Details Omega- and phi-meson production in p n -> d M reactions near threshold and OZI-rule violation Omega- and phi-meson production in p n -> d M reactions near threshold and OZI-rule violation

1999-06-22

arxiv.org/abs/nucl-th/9906064v1

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

We investigate the reactions p n -> d omega and p n -> d phi close to the corresponding thresholds. The S-wave amplitudes are calculated within the framework of the two-step model which is described by a triangle graph with pi, rho and omega mesons in the intermediate state. The cross sections of the reactions p n -> d omega and p n -> d phi are predicted to be significantly larger than the cross sections of the corresponding reactions p p -> p p omega and p p -> p p phi at the same values of the c.m. excess energy Q. The ratio of the yields of phi to omega is found to be (30 +/- 7) x 10^-3.

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