# 19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman

26-31 July 2021
Mexico City
Mexico/General timezone
HADRON 2021 is over. Thanks for making it a success!
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## Place

Location: Mexico City
Date: 30 Jul 11:15 - 13:15

## Conveners

• Dr. Pilloni, Alessandro (Università di Messina)

## Timetable | Contribution List

Displaying 5 contributions out of 5
Type: Parallel Session: Exotic hadrons and candidates-8
The study of $P_c$ resonances in the compact pentaquark picture is performed in quark model and group theory. It is found that there are totally 17 possible compact pentaquark states, where the hidden heavy pentaquark states may take the color singlet-singlet and color octet-octet configurations. The partial widths of strong decay indicate that $P_c(4440)$ may not be a compact pentaquark state whi ... More
Presented by Mr. Wiriya RUANGYOO on 30/7/2021 at 12:40
we have shown that the recently discovered resonance-like signal $a_1(1420)$ can be fully explained by the decay of the ground-state $a_1(1260)$ into $K^*\bar{K}$ and subsequent rescattering through a triangle singularity into the observed final state $f_0(980)\pi$ without the need of a new genuine $a_1$ resonance. The effect of the triangle singularity, which is expected to be present, is suffici ... More
Presented by Mathias WAGNER on 30/7/2021 at 16:15
Type: Parallel Session: Exotic hadrons and candidates-8