Xi(1620) and Xi(1690) have recently been actively studied both experimentally and theoretically.
We have constructed the models which are based on the Belle and ALICE experimental results, with the chiral unitary method previously.[1]
In this study we discuss the physical origin of poles in the scattering amplitude by extrapolating different models.
We also study the near Kbar-Lambda...
The validity range of the time-honored effective range expansion can be very limited due to the presence of a left-hand cut close to the two-particle threshold. Such a left-hand cut arises in the two-particle interaction involving a light particle exchange with a mass small or slightly heavier than the mass difference of the two particles, a scenario encountered in a wide range of systems....
In the last two decades, there are many open and hidden charmed exotics were discoveried. The investigations of their dynamics have been an ongoing and central issue in the study of nonperturbative Quantum Chromodynamics. One of the most popular exotic states is the Ds(2317). The close proximity behavior of them to threshold renders its nature highly susceptible to interactions and the inner...
I will present a light-front spectator model for the proton that incorporates the gluonic degree of freedom. The model is based on light-front wave functions modeled from the soft-wall anti–de Sitter/QCD prediction, which allows us to explore the gluonic structure within the proton. Using this model, we have successfully predicted key results for gluon transverse momentum distributions (TMDs)...
In this talk, we will make new interpolation of Pc(4457) as a bound state of Dbar Lambda(2595) and it mainly decay to Pc(4312) pi channel.
Most recently discovered exotic hadron candidates appear close to two-hadron thresholds, making it challenging to probe the quantum states associated with these near-threshold signals. This difficulty arises from potential contamination due to coupled-channel effects, and the observed signal might also originate from purely kinematical effects. In this talk, I will discuss how machine learning...
The $\chi_{c1}(3872)$ state, discovered by the Belle, BABAR, CDF, D0, and LHCb collaborations and identified with quantum numbers $J^{PC}=1^{++}$, has been the subject of extensive study due to its intriguing properties. Various theoretical interpretations, including the $\chi_{c1} (2P)$, the molecular $\bar{D}^{*}D / \bar{D}D^{*}$, and compact tetraquark states, have been proposed to explain...
The substructure of the $\Delta(1232)$ resonance in the $p\gamma^*\to\Delta(1232)$ process is studied through helicity transition amplitudes within the quark model framework. We consider the involved baryons composed of three quarks, and both the quark core and meson cloud contribute to the transition amplitudes. The comparison of theoretical results with experimental data reveals that, rather...
