Ulf-G. Meißner

activity

20042026

most citedOn the correlation between the binding energies of the triton and the alpha-particle

131 citations · 364 across the 23 of their papers we have counts for

collaborators

23 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…

nucl-th2026

Nucleon electromagnetic form-factors in a minimal Gari-Krümpelmann model including two-meson continua

Wulf Krümpelmann, Yong-Hui Lin, Ulf-G. Meißner

The Gari--Krümpelmann (GK) model provided one of the first semiphenomenological descriptions of the electromagnetic nucleon form-factors over a wide range of momentum transfer. It…

hep-ph2026

Understanding the near-threshold structures in $e^{+} e^{-}$ annihilation from a unified $N N ˉ$ -interaction perspective

Teng Ji, Ulf-G. Meißner

Near-threshold structures have been observed in the cross sections for $e^{+} e^{-} \to p p ˉ$ , $e^{+} e^{-} \to n n ˉ$ and several non-baryonic final states in the vicinity of the $N…

hep-ph2025

Short-range production of three bottom mesons

Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner

Previous investigations of the three-body dynamics of $B$ mesons have shown that no Efimov effect arises in systems composed of three $B$ and $B^{*}$ mesons. This implies that the pr…

hep-ph2025

Model-independent mass determination of near-threshold states from short-range production

Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner

We propose a novel observable for the precision measurements of a wide class of near-threshold dimer states: the short-range production rate of a dimer--spectator two-body system,…

hep-ph2025

Exploring Efimov states in $D^{} D^{} D^{}$ and $D D^{} D^{*}$ three-body systems

Hai-Long Fu, Yong-Hui Lin, Feng-Kun Guo +4

The Efimov effect is an intriguing three-body quantum phenomenon. Searching for Efimov states within the realms of nuclear and hadronic physics presents a challenge due to the inhe…

hep-ph2025★ 6 cited

Role of the short-range dynamics in the formation of $D^{()} D ˉ^{()} / B^{()} B ˉ^{()}$ hadronic molecules

Nijiati Yalikun, Xiang-Kun Dong, Ulf-G. Meißner

We investigate potential hadronic molecular states in the $D^{(*)} D ˉ^{(*)}$ and $B^{(*)} B ˉ^{*}$ systems using light meson exchange interactions. Our analysis focuses on cou…

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

Baryon Form Factors

Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner

We review the status of baryon form factors with a special focus on the nucleon electromagnetic form factors which are known best. First, we give an introduction into the dispersiv…

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

The Proton Charge Radius from Dimuon Photoproduction off the Proton

Yong-Hui Lin, Feng-Kun Guo, Ulf-G. Meißner

We investigate the feasibility of measuring the proton charge radius through dimuon photoproduction off a proton target. Our findings indicate that the Bethe-Heitler mechanism, whi…

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-ph2024★ 2 cited

Hints of the $J^{P C} = 0^{--}$ and $1^{--}$ $K^{*} K ˉ_{1} (1270)$ Molecules in the $J / ψ \to ϕ η η^{'}$ Decay

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

The primary objective of this study is to investigate hadronic molecules of $K^{*} K ˉ_{1} (1270)$ using a one-boson-exchange model, which incorporates exchanges of vector and pseudos…

hep-ph2024★ 1 cited

Interactions of the Pseudoscalar Meson Octet and the Baryon Decuplet in the Continuum and a Finite Volume

Teng Ji, Xiang-Kun Dong, Ulf-G. Meißner

This study focuses on the interaction of the pseudoscalar meson octet and the baryon decuplet. In the continuum, it is observed that several $J^{P} = \frac{3}{2}^{-}$ baryon resonances can…

hep-ph2023★ 7 cited

The proton magnetic radius: a new puzzle?

Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner

We comment on the puzzling status of the proton magnetic radius determinations.

hep-ph2023★ 1 cited

Pion axioproduction revisited

Cheng-Cheng Li, Tao-Ran Hu, Feng-Kun Guo +1

In this work, we extend the analysis of the pion axioproduction, $a N \to π N$ , to include the impact of the Roper resonance $N^{*} (1440)$ together the previously studied $Δ (1232)$ r…

hep-ph2023★ 3 cited

Method for measuring the charge radii of charged hyperons from the time-like region

Yong-Hui Lin, Feng-Kun Guo, Ulf-G. Meißner

We propose a novel method for measuring the charge radii of charged stable hadrons, with which the first measurement of the charge radii of the $Σ^{+}$ and the $Ξ^{-}$ is foreseen. The…

hep-ph2016★ 2 cited

On the pole content of coupled channels chiral approaches used for the $K ˉ N$ system

A. Cieplý, M. Mai, Ulf-G. Meißner +1

Several theoretical groups describe the antikaon-nucleon interaction at low energies within approaches based on the chiral SU(3) dynamics and including next-to-leading order contri…

hep-ph2015★ 43 cited

New structures in the proton-antiproton system

I. T. Lorenz, H. -W. Hammer, U. -G. Meißner

In the most recent measurements of the reaction $e^{+} e^{-} \to p p ˉ$ by the BABAR collaboration, new structures have been found with unknown origin. We examine a possible…

hep-ph2014★ 62 cited

Reduction of the proton radius discrepancy by 3 sigma

I. T. Lorenz, U. -G. Meißner

We show that in previous analyses of electron-proton scattering, the uncertainties in the statistical procedure to extract the proton charge radius are underestimated. Using a fit…

hep-ph2013★ 66 cited

Electromagnetic Structure of the Z_c(3900)

E. Wilbring, H. -W. Hammer, U. -G. Meißner

The observation of the exotic quarkonium state Z_c(3900) by the BESIII and Belle collaborations supports the concept of hadronic molecules. Charmonium states interpreted as such mo…

nucl-th2004★ 131 cited

On the correlation between the binding energies of the triton and the alpha-particle

L. Platter, H. -W. Hammer, U. -G. Meißner

We consider the correlation between the binding energies of the triton and the alpha-particle which is empirically observed in calculations employing different phenomenological nuc…

cond-mat.other2004★ 10 cited

Universal Properties of the Four-Boson System in Two Dimensions

L. Platter, H. -W. Hammer, U. -G. Meißner

We consider the nonrelativistic four-boson system in two dimensions interacting via a short-range attractive potential. For a weakly attractive potential with one shallow two-body…

Amplified Isospin Breaking from Coupled-Channel Dynamics Near Threshold

Nucleon electromagnetic form-factors in a minimal Gari-Krümpelmann model including two-meson continua

Understanding the near-threshold structures in e+e− annihilation from a unified NNˉ-interaction perspective

Short-range production of three bottom mesons

Model-independent mass determination of near-threshold states from short-range production

Exploring Efimov states in D∗D∗D∗ and DD∗D∗ three-body systems

Role of the short-range dynamics in the formation of D(∗)Dˉ(∗)/B(∗)Bˉ(∗) hadronic molecules

Precise determination of the properties of X(3872) and of its isovector partner Wc1​

Baryon Form Factors

Dispersive analysis of the isospin breaking in the X(3872) → J/ψπ+π− and X(3872) → J/ψπ+π0π− decays

The Proton Charge Radius from Dimuon Photoproduction off the Proton

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

Hints of the JPC=0−− and 1−− K∗Kˉ1​(1270) Molecules in the J/ψ→ϕηη′ Decay

Interactions of the Pseudoscalar Meson Octet and the Baryon Decuplet in the Continuum and a Finite Volume

The proton magnetic radius: a new puzzle?

Pion axioproduction revisited

Method for measuring the charge radii of charged hyperons from the time-like region

On the pole content of coupled channels chiral approaches used for the KˉN system

New structures in the proton-antiproton system

Reduction of the proton radius discrepancy by 3 sigma

Electromagnetic Structure of the Z_c(3900)

On the correlation between the binding energies of the triton and the alpha-particle

Universal Properties of the Four-Boson System in Two Dimensions

Understanding the near-threshold structures in $e^{+} e^{-}$ annihilation from a unified $N N ˉ$ -interaction perspective

Exploring Efimov states in $D^{} D^{} D^{}$ and $D D^{} D^{*}$ three-body systems

Role of the short-range dynamics in the formation of $D^{()} D ˉ^{()} / B^{()} B ˉ^{()}$ hadronic molecules

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

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

Hints of the $J^{P C} = 0^{--}$ and $1^{--}$ $K^{*} K ˉ_{1} (1270)$ Molecules in the $J / ψ \to ϕ η η^{'}$ Decay

On the pole content of coupled channels chiral approaches used for the $K ˉ N$ system