71 citations · 562 across the 26 of their papers we have counts for
27 papers
Practical parametrization of two-pole structure
J. X. Cui, Zhi-Yong Zhou, Zhiguang Xiao
We suggest that the extended Lee-Friedrichs model could be directly used as a practical parametrization method for the experimental analysis of resonance structures. This parametri…
On the generalized Friedrichs-Lee model with multiple discrete and continuous states
Zhiguang Xiao, Zhi-Yong Zhou
In this study, we present several improvements of the non-relativistic Friedrichs-Lee model with multiple discrete and continuous states and still retain its solvability. Our findi…
Reconciling experimental and lattice data of in a - coupled-channel analysis
Lin-Wan Yan, Zhi-Hui Guo, Feng-Kun Guo +2
We study the and coupled-channel system within a covariant framework. The and invariant-mass distributions measured at 4.23~GeV and 4.26~GeV…
A new look at and
Zhi-Yong Zhou, Chun-Yong Li, Zhiguang Xiao
By simultaneously analyzing the cross section data of in a coupled-channel scheme with unitarity, we found that, in co…
Reply to "comment on `Scrutinizing scattering in light of recent lattice phase shifts'"
Xiu-Li Gao, Zhi-Hui Guo, Zhiguang Xiao +1
We reply to the comment [arxiv:2202.08809] by E. van Beveren and G. Rupp on our recent work [arxiv:2202.03124], by further clarifying the difference between the two approaches. We…
Scrutinizing scattering in light of recent lattice phase shifts
Xiu-Li Gao, Zhi-Hui Guo, Zhiguang Xiao +1
In this paper, the partial wave scattering phase shifts determined by the lattice QCD approach are analyzed by using a novel dispersive solution of the S-matri…
A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
De-Liang Yao, Ling-Yun Dai, Han-Qing Zheng +1
The description of strong interaction physics of low-lying resonances is out of the valid range of perturbative QCD. Chiral effective field theories have been developed to tackle t…
Two-pole structures in a relativistic Friedrichs-Lee-QPC scheme
Zhi-Yong Zhou, Zhiguang Xiao
A general appearance of two-pole structures is exhibited in a relativistic Friedrichs-Lee model combined with a relativistic quark pair creation model in a consistent manner. This…
Relativistic Friedrichs-Lee model and quark-pair creation model
Zhi-Yong Zhou, Zhiguang Xiao
In this paper, we present how the Friedrichs-Lee model could be extended to the relativistic scenario and be combined with the relativistic quark pair creation model in a consisten…
QCD sum rule studies on the tetraquark states of
Rui-Rui Dong, Niu Su, Hua-Xing Chen +2
We apply the method of QCD sum rules to study the tetraquark states of . We construct all the relevant tetraquark currents,…
Possible molecular states in scatterings
Meng-Ting Yu, Zhi-Yong Zhou, Dian-Yong Chen +1
We present that, if unitarizing the scattering amplitudes in the constituent interchange model, one can find two bound state poles for $B…
Understanding and its decays in the extended Friedrichs scheme
Meng-Ting Yu, Zhi-Yong Zhou, Zhiguang Xiao
We present that the could be represented as a dynamically generated state in the extended Friedrichs scheme, in which the ratio of "elementariness" and "compositeness" of…
Decays of to and
Zhi-Yong Zhou, Meng-Ting Yu, Zhiguang Xiao
By describing the using the extended Friedrichs scheme, in which is the dominant component, we calculate the decay rates of the to and a -w…
Does the bottomonium counterpart of exist?
Zhi-Yong Zhou, Dian-Yong Chen, Zhiguang Xiao
A narrow line shape peak at about 10615 MeV, just above the threshold in the channel, which can be regarded as the signal of bottomonium counterpart of , …
Comprehending Isospin breaking effects of in a Friedrichs-model-like scheme
Zhi-Yong Zhou, Zhiguang Xiao
Recently, we have shown that the state can be naturally generated as a bound state by incorporating the hadron interactions into the Godfrey-Isgur quark model using the F…
Understanding , , and in a Friedrichs-model-like scheme
Zhi-Yong Zhou, Zhiguang Xiao
We developed a Friedrichs-model-like scheme in studying the hadron resonance phenomenology and present that the hadron resonances might be regarded as the Gamow states produced by…
Partial Wave Decomposition in Friedrichs Model With Self-interacting Continua
Zhiguang Xiao, Zhi-Yong Zhou
We consider the nonrelativistic model of coupling bare discrete states with continuum states in which the continuum states can have interactions among themselves. By partial-wave d…
On Friedrichs Model with Two Continuum States
Zhiguang Xiao, Zhi-Yong Zhou
The Friedrichs model with one discrete state coupled to more than one continuum is studied. The exact eigenstates for the full Hamiltonian can be solved explicitly. The discrete st…
Virtual states and generalized completeness relation in the Friedrichs Model
Zhiguang Xiao, Zhi-Yong Zhou
We study the well-known Friedrichs model, in which a discrete state is coupled to a continuum state. By examining the pole behaviors of the Friedrichs model in a specific form fact…
Distinguishing cusp effects and near-threshold-pole effects
Zhi-Yong Zhou, Zhiguang Xiao
We make use of a unitarized coupled-channel model to analyze the mass distribution data of final states in production processes of . By analyzing the analytical structures…
Could the and the Be the Same Tensor State?
Zhi-Yong Zhou, Zhiguang Xiao, Hai-Qing Zhou
By using a combined amplitude analysis of the and data, we demonstrate that the , which is quoted as a state…
Comprehending heavy charmonia and their decays by hadron loop effects
Zhi-Yong Zhou, Zhiguang Xiao
We present that including the hadron loop effects could help us to understand the spectrum of the heavier charmonium-like states and their decays simultaneously. The observed state…
Hadron loops effect on mass shifts of the charmed and charmed-strange spectra
Zhi-Yong Zhou, Zhiguang Xiao
The hadron loop effect is conjectured to be important in understanding discrepancies between the observed states in experiments and the theoretical expectations of non-relativistic…
The origin of light scalar resonances
Zhi-Yong Zhou, Zhiguang Xiao
We demonstrate how most of the light spectrum below and their decays can be consistently described by the unitarized quark model incorporating the…