Present status on experimental search for pentaquarks

Understand

It has been ten years since the first report for a positive strangeness pentaquark-like baryon state.

• However the existence of the pentaquark state is still controversial.
• Some contradictions between the experiments are unsolved.
• In this paper we review the experimental search for the pentaquark candidates $\Theta^+$, $\Theta^{++}$, $\Xi^{--}$, $\Theta_c^0$ and $N^*$ in details.