-
Christopher Thomas (University of Cambridge)30/03/2026, 09:15
-
Umberto Tamponi30/03/2026, 09:30Invited talk
The Belle and Belle II experiments have collected a 1.6 ab sample of e+
Go to contribution page
e- collision data at centre-of-mass energies near the Y(nS) resonances.
This provides a unique opportunity to study conventional and exotic
hadrons that cannot be described by the standard q\bar{q} or qqq
valence quark configurations.
In this talk, we present recent studies of exotic hadrons from Belle
and Belle II... -
Weimin Song (Jilin University College of Physics (CN))30/03/2026, 10:00Talk
The BESIII experiment, operating in the τ-charm energy region, has conducted extensive studies of exotic hadronic states using the world’s largest data samples of electron-positron collisions at center-of-mass energies from 4.0 to 4.95 GeV. These studies systematically probe candidates beyond the conventional quark model, such as multiquark or hybrid configurations, by analyzing a diverse set...
Go to contribution page -
Eric Swanson30/03/2026, 10:30Invited talk
Traditional methods of fitting data involves hypothesis testing, with "discovery" declared if the null hypothesis is rejected. This approach often assumes that the data is generated by the model, under-estimates systematic errors, and leads to overfitting. Common methods for overcoming the last issue, such as LASSO, AIC, and BIC do not perform well. In addition, the entire methodology relies...
Go to contribution page -
Max Hansen30/03/2026, 11:30Invited talk
I will review recent advances in studying three-particle interactions directly from lattice QCD. By employing mathematical relations that connect finite-volume energies and matrix elements to physical scattering and decay amplitudes, it is now possible to calculate observables that go beyond the single-hadron regime. While the application to two-particle channels is well established,...
Go to contribution page -
Davide Germani (Sapienza Università di Roma & Istituto Nazionale di Fisica Nucleare)30/03/2026, 12:00Talk
Since its observation in 2003, the $X(3872)$ has stood out as one of the most puzzling exotic states in QCD, displaying properties that continue to challenge standard theoretical interpretations. In this presentation, I will address a particularly striking aspect of this state: the sizable isospin violation exhibited in its decays to $J/\psi\rho^0$ and $J/\psi\omega$. Despite being...
Go to contribution page -
Muhammad Ridwan (University of Plymouth)30/03/2026, 12:30Talk
The inner structure of hadrons nowadays remains elusive due to both experimental limitations and the complexity of analytical approaches. In this talk, I would like to share my previous research work about the spectroscopy and hadron structure, especially in light and heavy mesons in the light-front quark model (LFQM). Starting from heavy mesons, where mass spectra, decay constant, and M1...
Go to contribution page -
Aleksandrina Docheva (University of Glasgow (GB))30/03/2026, 14:00Invited talk
Exotic hadrons and precision studies of their properties offer important constraints on models of hadron structure and strong-interaction dynamics. In recent years a large number of exotic states have been discovered and studied by the LHCb experiment at CERN. This talk presents a summary of the latest results in the field of exotic hadron spectroscopy from LHCb.
Go to contribution page -
Ivan Vujmilovic30/03/2026, 14:30Invited talk
We present the first lattice QCD determination of the electromagnetic form factors of the exotic tetraquark $T_{bb} \ (bb \bar u \bar d)$ with quantum numbers $I( J^P ) = 0( 1^+ )$. The extracted form factors encode information about its internal structure, including the charge distribution and the magnetic dipole moments, determined separately for the light and heavy quarks. Our results...
Go to contribution page -
Michael Abolnikov (Ruhr University Bochum)30/03/2026, 15:00Invited talk
Chiral effective field theory (EFT) provides a natural framework to explore the properties of near-threshold exotics with reliable error estimates at both physical and unphysical pion masses, and to connect these regimes via chiral extrapolations once the low-energy constants are fixed. We present a chiral EFT approach for extracting two-body scattering information from finite-volume energy...
Go to contribution page -
Jung Keun Ahn30/03/2026, 16:00Invited talk
This presentation will provide an overview of experimental efforts to search for the H-dibaryon, focusing on the most recent findings from the J-PARC E42 experiment. The E42 experiment explores the existence of the H-dibaryon near the $\Lambda\Lambda$ and $\Xi^-p$ mass thresholds, having collected thousands of $\Lambda\Lambda$ production events through $(K^-, K^+)$ reactions on a $^{12}$C...
Go to contribution page -
Juan Antonio Fernandez de la Garza (Universität Bern (AEC + ITP))30/03/2026, 16:30Talk
We present a preliminary lattice QCD study of the H-dibaryon at a close-to-physical pion mass through the spectroscopic analysis of the strangeness $S=-2$, iso-singlet baryon-baryon system on the CLS D200 ensemble. This ensemble is at $m_\pi \simeq 200~\mathrm{MeV}$ and $m_K \simeq 480~\mathrm{MeV}$, using a $64^3 \times 128$ lattice with spacing $a \simeq 0.065~\mathrm{fm}$ and open boundary...
Go to contribution page -
Nora Brambilla31/03/2026, 09:30Invited talk
We will present a QCD derived effective field theory description based on
Go to contribution page
scales separation and symmetries and show how this description can reproduce and predict the properties of the XYZ as well give us an understand of their nature. -
Pierre Chatagnon (CEA Saclay)31/03/2026, 10:00Invited talk
The photo-production of vector mesons off the nucleon has long been established as an important tool to access the gluon content of the nucleon. In particular, the photo-production of J/$\psi$ near the threshold energy has been related to the Gluons Gravitational Form Factors of the nucleon. However, the validity of this interpretation must be tested and additional contributions such as open...
Go to contribution page -
Aslı Acar31/03/2026, 11:00Invited talk
Currently, there are only six cascade states (out of 44 predicted) that have at least a three-star rating in the PDG, with the production mechanism of these states still remaining mostly elusive. Cascade studies are promising as a tool to differentiate genuine quark states from hadronic molecules, since we have the ability to measure the line shape in various decay branches with unprecedented...
Go to contribution page -
Raquel Molina Peralta31/03/2026, 11:30Invited talk
In this talk I will discuss the quark mass dependence of several exotic
Go to contribution page
resonance states. On the one hand, I will talk about the exotic charmed mesons, the light and heavy pion mass dependence, and discuss about the effect of the possible mechanisms of attraction. On the other hand, I will discuss two-pole structures, and, in particular, I will review a recent work of analysis of LQCD data... -
Barbara Alexandra Cid Mora (GSI Helmholtzzentrum für Schwerionenforschung)31/03/2026, 12:00Invited talk
We present a lattice QCD investigation of baryon resonances with strangeness, focusing on their possible exotic nature, associated with their dynamical origin in meson–baryon interactions. In particular, the $\Lambda(1405)$ and its long-standing two-pole structure are studied, as well as the poorly understood $\Xi(1620)$ and $\Xi(1690)$. We discuss published coupled-channel results for the...
Go to contribution page -
Yilin Zhou (Fudan University (CN))31/03/2026, 13:30Invited talk
The CMS experiment reports the observation of three structures in the J/ψJ/ψ→μ+μ−μ+μ− channel—X(6600), X(6900), X(7100)—each with a statistical significance well above 5σ, confirming and extending earlier Run 2 results. Strong interference effects among these states, also exceeding 5σ, indicate that they share the same quantum numbers. A complementary search in the J/ψ ψ(2S) channel reveals...
Go to contribution page -
Jeremy Green (DESY, Zeuthen)31/03/2026, 14:00Invited talk
An ongoing study of the $T_{cc}$(3875) tetraquark using lattice QCD with degenerate up, down, and strange quarks with a pion mass of roughly 420 MeV will be presented. A comprehensive set of nine ensembles with six different lattice spacings allows full control over lattice systematics and a continuum extrapolation at this unphysical point. I will discuss the challenges in obtaining the...
Go to contribution page -
Zhengqing Wang (Fudan University (CN))31/03/2026, 14:30Talk
Hypernuclei, bound states of nucleons and hyperons, offer a unique probe of the strong interaction with strangeness and provide key constraints on hyperon–nucleon interactions. The ALICE experiment at the CERN Large Hadron Collider, exploiting excellent particle identification at low transverse momentum and precise secondary-vertex reconstruction, has performed systematic measurements of light...
Go to contribution page -
Juan Andres Urrea Nino (Trinity College Dublin)31/03/2026, 15:30Talk
We investigate meson-glueball mixing on the lattice by means of improved interpolating operators. On the meson side, we extend the Hadron Spectrum Collaboration's derivative-based basis with optimal distillation profiles, resulting in a clearer resolution of the spectrum. On the glueball side, we build operators using the chromo-magnetic field and its gauge-covariant derivatives which couple...
Go to contribution page -
Li-Sheng Geng (Beihang University)31/03/2026, 16:00Talk
Since 2003, many hadrons that do not fit into the conventional quark model of qqbar mesons and qqq baryons have been discovered experimentally. Because most (if not all) of these states are located at the thresholds of a pair of conventional hadrons, they have been conjectured to be hadronic molecules. There have been extensive theoretical and experimental studies to verify or refute the...
Go to contribution page -
31/03/2026, 16:30
-
Viktoriia Ermolina (Johannes Gutenberg University of Mainz)01/04/2026, 09:30Talk
We analyse the processes $e^+ e^- \to \gamma^* \to J/\psi \pi \pi (K \bar{K})$ and $e^+ e^- \to \gamma^* \to h_c \pi \pi$ using the recently proposed Dalitz-plot decomposition approach, based on the helicity formalism for three-body decays. Within a Lagrangian-based toy model, we validate key aspects of this approach, namely the factorisation of the overall rotation for all decay chains and...
Go to contribution page -
Peter Hurck (University of Glasgow (GB))01/04/2026, 10:00Invited talk
The spectrum of hadronic states holds valuable information about the interaction of the strong force. Photoproduction experiments can provide crucial insights due to their ability to produce a wide range of conventional and non-conventional hadrons, such as exotic hybrid mesons with gluonic degrees of freedom.
Go to contribution page
The GlueX experiment at Jefferson Lab, VA, USA, features a 9 GeV linearly polarized... -
Zachary Baldwin (Carnegie Mellon University)01/04/2026, 11:00Talk
Mapping the light meson spectrum in the strongly coupled regime of QCD requires disentangling overlapping resonant and non-resonant contributions in multi-body final states, especially in channels where exotic quantum numbers may appear. This presentation highlights the ongoing amplitude studies of the lightest spin-exotic hybrid candidate, the $\pi_1$, in photoproduced $\eta\pi$ and...
Go to contribution page -
Francesco Giacomo Knechtli (Bergische Universitaet Wuppertal (DE))01/04/2026, 11:30Invited talk
We study using lattice QCD the phenomenon of string breaking, the flattening of the ground state potential between a static quark and a static anti-quark at large separation distance due to the formation of a pair of static-light mesons. We compute the three lowest energy levels of the static potential in QCD with light (degenerate up and down) and strange dynamical quarks for a set of quark...
Go to contribution page -
01/04/2026, 12:00
Choose timezone
Your profile timezone: