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

26-31 July 2021
Mexico City
Mexico/General timezone
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Baryon spectroscopy-4

Place

Location: Mexico City
Date: 28 Jul 11:15 - 13:15

Conveners

• Dr. Bijker, Roelof (Instituto de Ciencias Nucleares, UNAM)

Timetable | Contribution List

Displaying 3 contributions out of 3
Type: Parallel Session: Baryon spectroscopy-4
Track: Baryon Spectroscopy
A contact interaction is used to compute hadron masses. This is input to the Schwinger-Dyson (SDE) and Bethe-Salpeter (BS) equations for mesons and diquarks. The Faddeev equation is used to compute baryon masses using a quark-diquark approximation. Our results agree with experimental data and other reasonable theory predictions.
Presented by Gustavo PAREDES on 28/7/2021 at 11:55
Type: Parallel Session: Baryon spectroscopy-4
Track: Baryon Spectroscopy
We propose a new type of structure for singly heavy baryons of $Qqq\bar{q}q$ in addition to the conventional one of $Qqq$. Based on chiral symmetry of the light quarks, we find $\Lambda_c(2765)$ and $\Xi_c(2967)$ are mostly $Qqq\bar{q}q$ while $\Lambda_c(2286)$ and $\Xi_c(2470)$ are mostly $Qqq$. The masses of negative-parity baryons are predicted. We also derive a mass formula and the extended Go ... More
Presented by Dr. Daiki SUENAGA on 28/7/2021 at 11:15
Type: Parallel Session: Baryon spectroscopy-4
Track: Baryon Spectroscopy
We study the photoproduction of the $N(1440)$ resonance in $\gamma^{\ast}p\to N^{\ast}$ process in quark models, where the $N(1440)$ takes different wave functions: First radial excitation of the nucleon imported from low-lying baryon mass spectrum calculations, a general radial excitation of the nucleon, and a $q^3$ state with positive parity. The comparisons between the theoretical results and ... More
Presented by Mr. Attaphon KAEWSNOD on 28/7/2021 at 11:35
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