New data on OZI rule violation in bar{p}p annihilation at rest

Abstract

The results of a measurement of the ratio R = Y(phi pi+ pi-) / Y(omega pi+ pi-) for antiproton annihilation at rest in a gaseous and in a liquid hydrogen target are presented. It was found that the value of this ratio increases with the decreasing of the dipion mass, which demonstrates the difference in the phi and omega production mechanisms. An indication on the momentum transfer dependence of the apparent OZI rule violation for phi production from the 3S1 initial state was found.

11 pages, 3 PostScript figures, submitted to Physics Letters

References in corpus (3)

• Abundant phi-Meson Production in pbar-p Annihilation at Rest and Strangeness in the Nucleon
• Rates for the reactions antiproton-proton --> pi phi and gamma phi
• THE PROTON SPIN PUZZLE AND DEPOLARIZATION IN $\bar{p}p\to \bar{\Lambda }\Lambda$

Cited by in corpus (13)

• Proton-Antiproton Annihilation and Meson Spectroscopy with the Crystal Barrel
• $\varphi$ and $\omega$ Meson Production in pp Reactions at $p_{lab}$=3.67 GeV/c
• The antinucleon-nucleon interaction at low energy : annihilation dynamics
• Close-to-threshold Meson Production in Hadronic Interactions
• Photoproduction of phi mesons from the proton: Polarization observables and strangeness in the nucleon
• The Near-Threshold Production of Phi Mesons in pp Collisions
• Spin effects and baryon resonance dynamics in phi-meson photoproduction at few GeV
• $\varphi$-meson production in proton-proton collisions
• Hadronic Probes of the Polarized Intrinsic Strangeness of the Nucleon
• Evidence of N*(1535) resonance contribution in the pn->dϕreaction
• Electroproduction of phi meson from proton and the strangeness in the nucleon
• The reactions p + n --> d + omega and p + n --> d + phi near threshold
• Loop Calculations and OZI Rule