Evidence of N*(1535) resonance contribution in the pn->dϕreaction

Abstract

The N*(1535) resonance contributions to the pn->dϕreaction are evaluated in an effective Lagrangian model. The π-, η-, and ρ-meson exchange are considered. It is shown that the contributions from π- and ρ-meson exchange are dominant, while the contribution from η-meson exchange is negligibly small. Our theoretical results reproduce the experimental data of both total cross section and angular distribution well. This is another evidence that the N*(1535) resonance has large s\bar{s} component leading to a large coupling to Nϕ, which may be the real origin of the OZI rule violation in the \piN and pN reactions.

13 pages,4 figures

References in corpus (7)

• Diffractive $\varphi$-meson photoproduction on proton near threshold
• The role of $N^{\ast }(1535)$ in $pp\to pp\varphi$ and ${\pi }^{-}p\to n\varphi$ reactions
• Precision measurement of the quasi-free pn->dphi reaction close to threshold
• Study of the $pd{\to }^3\text{He}{K}^{+}{K}^{-}$ and $pd{\to }^3\text{He}\varphi$ reactions close to threshold
• The role of $N^{\ast }(1535)$ in ${\eta }^{\prime }$ production
• The role of the N*(1535) resonance and the pi^- p --> KY amplitudes in the OZI forbidden pi N --> phi N reaction
• Coupling Constant for ${\mathbf{N}}^{\ast }(1535)\mathbf{N}\rho$