Threshold cusps and triangle singularities in hadronic reactions

FK Guo, XH Liu, S Sakai - Progress in Particle and Nuclear Physics, 2020 - Elsevier
The spectrum of hadrons is the manifestation of color confinement of quantum
chromodynamics. Hadronic resonances correspond to poles of the S-matrix. Since 2003 …

Electromagnetic transition form factors of baryon resonances

G Ramalho, MT Peña - Progress in Particle and Nuclear Physics, 2024 - Elsevier
Recent experimental and theoretical advancements have led to significant progress in our
understanding of the electromagnetic structure of nucleons (N), nucleon excitations (N∗) …

[HTML][HTML] Photocouplings at the pole from pion photoproduction

D Rönchen, M Döring, F Huang, H Haberzettl… - The European Physical …, 2014 - Springer
The reactions γp→π^0p and γp→π^+n are analyzed in a semi-phenomenological approach
up to E∼2.3 GeV. Fits to differential cross section and single-and double-polarization …

Spectroscopy of light baryons

Z Shah, K Gandhi, AK Rai - Chinese Physics C, 2019 - iopscience.iop.org
We present the masses of N baryons up to 3300 MeV. The radial and orbital excited states
are determined using hypercentral constituent quark model with the first-order correction …

Reaction in a dynamical coupled-channel approach

YF Wang, D Rönchen, UG Meißner, Y Lu, CW Shen… - Physical Review D, 2022 - APS
A refined investigation on light flavor meson-baryon scatterings is performed using a
dynamical coupled-channel approach, the Jülich-Bonn model, that respects unitarity and …

Scalar resonances in the decay

L Roca, E Oset - Physical Review D, 2021 - APS
We study theoretically the resonant structure of the double Cabibbo suppressed D+→ K-K+
K+ decay. We start from an elementary production diagram, considered subleading in …

Multimeson model for the decay amplitude

RT Aoude, PC Magalhães, AC Dos Reis, MR Robilotta - Physical Review D, 2018 - APS
We propose an approach to describe the D+→ K-K+ K+ decay amplitude, based on chiral
effective Lagrangians, which can be used to extract information about KK¯ scattering. It …

Theoretical study on decay and resonance

SW Liu, QH Shen, JJ Xie - Physical Review D, 2023 - APS
We present a theoretical study of the Ξ*(1690) resonance in the Λ c+→ Λ K+ K¯ 0 decay,
where the weak-interaction part proceeds through the Cabibbo-favored process c→ s+ ud¯ …

Compositeness of baryonic resonances: Application to the , and resonances

T Sekihara, T Arai, J Yamagata-Sekihara, S Yasui - Physical Review C, 2016 - APS
We present a formulation of the compositeness for baryonic resonances to discuss the
meson-baryon molecular structure inside the resonances. For this purpose, we derive a …

Mixing of pseudoscalar-baryon and vector-baryon in the sector and the (1535) and (1650) resonances

EJ Garzon, E Oset - Physical Review C, 2015 - APS
We study the meson-baryon interaction with JP= 1/2− using the hidden-gauge Lagrangians
and mixing pseudoscalar meson-baryon with the vector meson-baryon states in a coupled …