Production of dibaryon $d_{N\Omega}$ in kaon induced reactions

TL;DR

This paper investigates the production of the $d_{N ext{Omega}}$ dibaryon in kaon-induced reactions, estimating cross sections and proposing experimental detection methods at high-energy facilities.

Contribution

It provides the first estimates of production cross sections for the $d_{N ext{Omega}}$ dibaryon in kaon-proton collisions and suggests experimental signatures for its observation.

Findings

Cross sections are estimated to be several hundred nanobarns at 20 GeV kaon momentum.

The $d_{N ext{Omega}}$ dibaryon decays into $ ext{Xi} ext{Lambda}$ and $ ext{Xi} ext{Sigma}$ channels.

Potential experimental detection via invariant mass distributions at existing high-energy facilities.

Abstract

In this work, we propose to investigate the $d_{N\Omega}$ dibaryon production in the process $K^- p \rightarrow d_{N\Omega} \bar{\Xi}^0$ by utilizing the kaon beam with the typical momentum to be around 10 GeV, which may be available at COMPASS, OKA@U-70 and SPS@CERN. The cross sections for $K^- p \rightarrow d_{N\Omega} \bar{\Xi}^0$ are estimated and in particular, the magnitude of the cross sections are evaluated to be several hundreds nanobarn at $P_K=20$ GeV. Considering that $d_{N\Omega}$ dibaryon dominantly decay into $\Xi \Lambda$ and $\Xi \Sigma$, we also estimate the cross sections for $K^- p \to \Xi^0 \Lambda \bar{\Xi}^0$ and $K^- p \to \Xi^- \Sigma^+ \bar{\Xi}^0$, where the $d_{N\Omega}$ dibaryon can be observed in the invariant mass distributions of $\Xi^0 \Lambda$ and $\Xi^- \Sigma^+ $, respectively.