Jun 5 – 9, 2023
Genova, Italy
Europe/Rome timezone

Pentaquark picture for singly heavy baryons based on a chiral model

Jun 7, 2023, 3:30 PM
30m
DAD - Room Benvenuto (Genova, Italy)

DAD - Room Benvenuto

Genova, Italy

Invited Heavy baryon spectroscopy Heavy baryon spectroscopy

Speaker

Daiki Suenaga (RIKEN Nishina Center)

Description

Recently, a novel pentaquark picture ($Qqq\bar{q}q$) in addition to the conventional three-quark one ($Qqq$) for describing the Roper-like singly heavy baryons such as $\Lambda_c(2765)$ and $\Xi_c(2970)$ has been invented, based on a chiral model. In this talk, I review roles of chiral symmetry and the $U(1)_A$ axial anomaly for those two states, and present our prediction of the existence of a negative-parity and 5-quark dominant $\Lambda_c$ baryon.

Primary author

Daiki Suenaga (RIKEN Nishina Center)

Presentation materials