Contribution of the t-channel $N^*(1535)$ exchange for the $p\bar p \to \phi\phi$ reaction

TL;DR

This paper investigates the role of t-channel $N^*(1535)$ exchange in the $par p o \phi\phi$ reaction, revealing significant contributions above 2.25 GeV and implications for OZI rule violations in $\phi$ production.

Contribution

It introduces the t-channel $N^*(1535)$ exchange as a significant mechanism in $\phi$ production from $par p$ annihilation, highlighting its potential to explain OZI rule violations.

Findings

Significant contribution of $N^*(1535)$ exchange above 2.25 GeV

Potential explanation for OZI rule evasion in $\phi$ production

Highlights importance of strangeness content in $N^*(1535)$

Abstract

Since the $N^*(1535)$ resonance was found to have large coupling to the strangeness due to its possible large $s\bar s$ component, we investigate the possible contribution of the t-channel $N^*(1535)$ exchange for the $p\bar p \to \phi\phi$ reaction. Our calculation indicates that the new mechanism gives very significant contribution for the energies above 2.25 GeV and may be an important source for evading the Okubo-Zweig-Iizuka rule in the $\phi$ production from $N \bar{N}$ annihilation.