F. Guo

activity

20092026

most citedHadronic molecules

1.4k citations · 1.7k across the 18 of their papers we have counts for

collaborators

18 papers

hep-ph2026

Amplified Isospin Breaking from Coupled-Channel Dynamics Near Threshold

Xiang-Kun Dong, Feng-Kun Guo, Christoph Hanhart +2

We identify the dynamical origin of amplified isospin breaking in near-threshold states. Using a pole-residue-based measure defined directly from the pole couplings, rather than fr…

hep-ph2026

Radiative decays of hadronic molecules: From confusion to inspiration

Feng-Kun Guo, Christoph Hanhart, Alexey Nefediev

Radiative decays of hadronic states provide an essential source of information that can facilitate deciphering their nature and properties. However, a lot of confusion concerning r…

hep-ph2025★ 1 cited

Decoding the structure near the $π^{+} π^{-}$ mass threshold in $ψ (3686) \to J / ψ π^{+} π^{-}$ decays

Yun-Hua Chen, Xiang-Kun Dong, Feng-Kun Guo +2

In light of recent high-precision data taken by the BESIII Collaboration, we reconsider the dipion transition $ψ (3686) \to J / ψ π^{+} π^{-}$ . The strong pion-pion final-state inte…

hep-ph2025★ 1 cited

Dispersive analysis of the $J / ψ \to π^{0} γ^{*}$ transition form factor with $ρ$ - $ω$ mixing effects

Xiong-Hui Cao, Feng-Kun Guo, Christoph Hanhart +1

Motivated by the discrepancies noted recently between the theoretical predictions of the electromagnetic $J / ψ \to π^{0} γ^{*}$ transition form factor and the BESIII data, we reanalyze t…

hep-lat2025

Exclusion of a diquark-antidiquark structure for the lightest positive-parity charmed mesons

Eric B. Gregory, Feng-Kun Guo, Christoph Hanhart +2

The nature of low-lying scalar and axial-vector charmed mesons has been debated for decades, with hadronic molecular and compact tetraquark models being prominent candidates. These…

hep-ph2025★ 3 cited

Are compact open-charm tetraquarks consistent with recent lattice results?

Feng-Kun Guo, Christoph Hanhart

We argue that the hypothesis that positive-parity charm meson resonances exhibit a compact tetraquark structure has some clear tension with recent lattice results for the $S$ -wave…

hep-ph2025

Precise determination of the properties of $X (3872)$ and of its isovector partner $W_{c 1}$

Teng Ji, Xiang-Kun Dong, Feng-Kun Guo +2

We perform a simultaneous fit to BESIII data on $e^{+} e^{-} \to γ (D^{0} D ˉ^{0} π^{0} / J / ψ π^{+} π^{-})$ and LHCb data on $B^{+} \to K^{+} (J / ψ π^{+} π^{-})$ to precisely determine the properties of the $…

hep-ph2024★ 10 cited

Dispersive analysis of the isospin breaking in the $X (3872) \to J / ψ π^{+} π^{-}$ and $X (3872) \to J / ψ π^{+} π^{0} π^{-}$ decays

Jorgivan Morais Dias, Teng Ji, Xiang-Kun Dong +5

We analyze the latest LHCb data on the $π^{+} π^{-}$ spectrum in the isospin-violating $X (3872) \to J / ψ π^{+} π^{-}$ decay, based on dispersion theory to deal with the $π π$ final state interac…

hep-ph2024★ 6 cited

Classification of Coupled-Channel Near-Threshold Structures

Zhen-Hua Zhang, Feng-Kun Guo

Since 2003, plenty of resonant structures have been observed in the heavy quarkonium regime. Many of them are close to the thresholds of a few pairs of heavy hadrons. They are cand…

hep-ph2024★ 7 cited

How does the $X (3872)$ show up in $e^{+} e^{-}$ collisions: dip versus peak

Vadim Baru, Feng-Kun Guo, Christoph Hanhart +1

We demonstrate that the dip observed near the total energy of 3872 MeV in the recent cross section data from the BESIII Collaboration for $e^{+} e^{-} \to J / ψ π^{+} π^{-}$ admits a natural ex…

hep-ph2024★ 20 cited

Predicting isovector charmonium-like states from X(3872) properties

Zhen-Hua Zhang, Teng Ji, Xiang-Kun Dong +4

Using chiral effective field theory, we predict that there must be isovector charmonium-like $D D ˉ^{*}$ hadronic molecules with $J^{P C} = 1^{++}$ denoted as $W_{c 1}$ . The inputs are…

hep-ph2023★ 12 cited

Production of the $X (4014)$ as the spin-2 partner of $X (3872)$ in $e^{+} e^{-}$ collisions

Pan-Pan Shi, Vadim Baru, Feng-Kun Guo +2

In 2021, the Belle collaboration reported the first observation of a new structure in the $ψ (2 S) γ$ final state produced in the two-photon fusion process. In the hadronic molecule…

hep-lat2021

Exotics in the $π D$ system

Eric B. Gregory, Feng-Kun Guo, Christoph Hanhart +2

In this proceedings we consider several states, namely the $D_{s 0}^{*} (2317)$ , $D_{s 1} (2460)$ , $D_{0}^{*} (2300)$ and $D_{1} (2430)$ , which appear to defy description as simple quark-ant…

hep-ph2017★ 44 cited

Note on X(3872) production at hadron colliders and its molecular structure

Miguel Albaladejo, Feng-Kun Guo, Christoph Hanhart +4

The production of the X(3872) as a hadronic molecule in hadron colliders is clarified. We show that the conclusion of Bignamini et al., Phys. Rev. Lett. 103 (2009) 162001, that the…

hep-ph2017★ 1.4k cited

Hadronic molecules

Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner +3

A large number of experimental discoveries especially in the heavy quarkonium sector that did not at all fit to the expectations of the until then very successful quark model led t…

hep-ph2014★ 27 cited

Direct X(3872) production in e+e- collisions

A. Denig, Feng-Kun Guo, C. Hanhart +1

Direct production of the charmonium-like state $X (3872)$ in $e^{+} e^{-}$ collisions is considered in the framework of the vector meson dominance model. An order-of-magnitude estimate f…

hep-lat2011★ 12 cited

When hadrons become unstable: a novel type of non-analyticity in chiral extrapolations

F. -K. Guo, C. Hanhart, F. J. Llanes-Estrada +1

Hadron masses show a specific dependence on the quark masses. Therefore, the variation of these masses can cause a resonance in a hadronic scattering amplitude to become a bound st…

hep-ph2009★ 166 cited

Interactions between heavy mesons and Goldstone bosons from chiral dynamics

Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner

We calculate the S-wave scattering lengths for charmed mesons scattering off Goldstone bosons and explore their quark mass dependence using chiral perturbation theory up to next-to…