L. Qiu

activity

20232026

collaborators

8 papers

hep-ph2026

S-matrix informed neural networks for amplitude analysis

Wyatt A. Smith, Arkaitz Rodas, Marius D. Thomas +5

Reconstructing scattering amplitudes from finite, noisy, and mutually inconsistent measurements is an ill-posed inverse problem common to many reactions relevant to particle physic…

hep-ph2026

Neuro-dispersive extractions of light-meson resonances

Wyatt A. Smith, Arkaitz Rodas, Marius D. Thomas +5

We present the first dispersive extraction of resonant poles from analytically continued neural networks. We use S-matrix informed neural networks (SINNs) trained to respect unitar…

hep-ph2026

Unraveling weak radiative hyperon decays with broken flavor symmetry

Kaiwen Chen, Lin Qiu, Jin Sun +2

We present a broken $S U (3)$ flavor analysis of weak radiative decays of spin-1/2 hyperons, incorporating current-current and electromagnetic-penguin contributions as well as charge…

hep-ph2026

Production Effects and Final-state Interactions in $π_{1} \to 3 π$

D. Winney, S. Gonzàlez-Solís, M. Mikhasenko +8

We investigate the $π_{1} (1600)$ signal channel of $3 π$ in the $J^{P C} = 1^{-+} [π π]_{1^{--}} π P$ -wave. This channel has recently been analyzed by the COMPASS collaboration using t…

hep-lat2026

Finite-volume analysis of the $H$ -dibaryon including left-hand-cut effects

Arkaitz Rodas, Lin Qiu, César Fernández-Ramírez +4

We implement the finite-volume $N / D$ representation to study two-baryon interactions from lattice QCD data. We include the left-hand cut induced by one-pion exchange in this formal…

hep-ph2024

$J / ψ$ photoproduction near threshold and signals for the hidden charm pentaquarks

Ming-Xiao Duan, Chang Gong, Lin Qiu +1

We study the $J / ψ$ photoproduction $γ p \to J / ψ p$ near threshold to investigate the role played by the open charm channels and possible signals from the hidden charm $P_{c}$ pentaquark…

hep-ph2024

Understanding the non-trivial isoscalar pseudoscalar structures in the $K_{S} K_{S} π^{0}$ spectra in the $J / ψ$ radiative decay

Yin Cheng, Lin Qiu, Qiang Zhao

Initiated by the recent observation of a flattened lineshape of $I J^{P C} = 0 0^{-+}$ around $1.4 \sim 1.5$ GeV in the $K_{S} K_{S} π^{0}$ invariant mass spectrum by BESIII, we make a systema…

hep-ph2023

Coupled-channel description of charmed heavy hadronic molecules within the meson-exchange model and its implication

Lin Qiu, Chang Gong, Qiang Zhao

Motivated by the first observation of the double-charm tetraquark $T_{cc}^{+} (3875)$ by the LHCb Collaboration, we investigate the nature of $T_{cc}^{+}$ as an isoscalar $D D^{*}$ hadroni…

S-matrix informed neural networks for amplitude analysis

Neuro-dispersive extractions of light-meson resonances

Unraveling weak radiative hyperon decays with broken flavor symmetry

Production Effects and Final-state Interactions in π1​→3π

Finite-volume analysis of the H-dibaryon including left-hand-cut effects

J/ψ photoproduction near threshold and signals for the hidden charm pentaquarks

Understanding the non-trivial isoscalar pseudoscalar structures in the KS​KS​π0 spectra in the J/ψ radiative decay

Coupled-channel description of charmed heavy hadronic molecules within the meson-exchange model and its implication

Production Effects and Final-state Interactions in $π_{1} \to 3 π$

Finite-volume analysis of the $H$ -dibaryon including left-hand-cut effects

$J / ψ$ photoproduction near threshold and signals for the hidden charm pentaquarks

Understanding the non-trivial isoscalar pseudoscalar structures in the $K_{S} K_{S} π^{0}$ spectra in the $J / ψ$ radiative decay