37 citations · 158 across the 14 of their papers we have counts for
15 papers
Nature of the and resonances via coupled-channel dynamics
Yu-Fei Wang, Ulf-G. Meißner, Deborah Rönchen +1
This work aims at determining the composition of certain and resonances, i.e. whether they are compact states formed directly by quarks and gluons, or hadronic molecules…
Surface defects, flavored modular differential equations and modularity
Haocong Zheng, Yiwen Pan, Yufan Wang
Every 4d SCFT corresponds to an associated VOA , which is in general non-rational with a more involved representation theor…
The reaction in a dynamical coupled-channel approach
Yu-Fei Wang, Deborah Rönchen, Ulf-G. Meißner +3
A refined investigation on light flavor meson-baryon scatterings is performed using a dynamical coupled-channel approach, the Jülich-Bonn model, that respects unitartiy and analyti…
Defects, modular differential equations, and free field realization of N = 4 VOAs
Yiwen Pan, Yufan Wang, Haocong Zheng
For all 4d SYM theories with simple gauge groups , we show that the residues of the integrands in the Schur indices, which are related to Guk…
An study of the channel scattering amplitude
Qu-Zhi Li, Yao Ma, Wen-Qi Niu +2
Extensive dynamical calculations are made in the study of channel low energy N scatterings, based on various phenomenological model inputs of left cuts at tree le…
Schur correlation functions from q-deformed Yang-Mills
Yufan Wang, Yiwen Pan
We construct the wave functions in the q-deformed 2d Yang-Mills theory that compute torus correlation functions of affine currents in the VOA associated to a class of 4d SC…
How does the state emerge from a naive matrix fit?
Yao Ma, Wen-Qi Niu, Yu-Fei Wang +1
We give a pedagogical analysis on matrix models describing the scattering amplitude, in channel at low energies. We show how the correct use of analyticity in the…
Discussions on the Line-shape of Resonance
Qin-Fang Cao, Hong-Rong Qi, Yu-Fei Wang +1
A careful reanalysis is made on processes, aiming at resolving the apparent conflicts between Belle and BESIII data above th…
New Insights on Low Energy Scattering Amplitudes: Comprehensive Analyses at Level
Yu-Fei Wang, De-Liang Yao, Han-Qing Zheng
A production representation of partial-wave matrix is utilized to construct low-energy elastic pion-nucleon scattering amplitudes from cuts and poles on complex Riemann sheets.…
The pole structure of low energy scattering amplitudes
Yu-Fei Wang
This report presents an investigation of the pion-nucleon elastic scattering in low energy region using a production representation of the partial wave matrix. The phase shifts…
On the Existence of Resonance in Channel of Scatterings
Yu-Fei Wang, De-Liang Yao, Han-Qing Zheng
Low-energy partial-wave scattering data is reexamined with the help of the production representation of partial-wave matrix, where branch cuts and poles are thoroughly und…
New Insights on Low Energy Scattering Amplitudes
Yu-Fei Wang, De-Liang Yao, Han-Qing Zheng
The - and - wave phase shifts of low-energy pion-nucleon scatterings are analysed using Peking University representation, in which they are decomposed into various terms cont…
Unitarity Analyses of Elastic Scattering Amplitudes
Yu-Fei Wang
The pion - nucleon scattering phase shifts in and waves are analyzed using PKU unitarization approach that can separate the phase shifts into different contributions from p…
The peak does not come from the "triangle singularity"
Qin-Rong Gong, Jing-Long Pang, Yu-Fei Wang +1
We compare contributions from the triangle diagram and the bubble chain to the processes of and $e^{+}e^{-}\rightarrow (D\bar D^*)…
as a molecule from the pole counting rule
Qin-Rong Gong, Zhi-Hui Guo, Ce Meng +3
A comprehensive study on the nature of the resonant structure is carried out in this work. By constructing the pertinent effective Lagrangians and considering the impor…