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physics #particle physics 🔬 ResearchAnalyzed: Jan 4, 2026 06:48

$J/ψΛ$ femtoscopy and the nature of $P_{ψs}^Λ(4338)$

Published:Dec 30, 2025 14:15

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1 min read

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ArXiv

Analysis

This article likely presents research findings on the interaction of $J/ψ$ mesons and $\Lambda$ baryons using femtoscopy techniques, focusing on the characterization of the $P_{ψs}^Λ(4338)$ particle. The title suggests a focus on experimental analysis and theoretical interpretation within the realm of particle physics.

Key Takeaways

•Focuses on femtoscopy of $J/ψ$ and $\Lambda$ particles.
•Investigates the nature of the $P_{ψs}^Λ(4338)$ particle.
•Likely presents experimental results and theoretical interpretations.

Reference

“The article is sourced from ArXiv, indicating it's a pre-print or research paper.”

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Physics #Particle Physics, Hadron Spectroscopy 🔬 ResearchAnalyzed: Jan 3, 2026 18:30

Omnès Matrix for Tensor Meson Decays

Published:Dec 29, 2025 18:25

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1 min read

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ArXiv

Analysis

This paper constructs a coupled-channel Omnès matrix for the D-wave isoscalar pi-pi/K-Kbar system, crucial for understanding the behavior of tensor mesons. The matrix is designed to satisfy fundamental physical principles (unitarity, analyticity) and is validated against experimental data. The application to J/psi decays demonstrates its practical utility in describing experimental spectra.

Key Takeaways

•Develops a coupled-channel Omnès matrix for the pi-pi/K-Kbar system.
•The matrix incorporates unitarity, analyticity, and experimental data.
•Successfully applied to describe J/psi decays into pi-pi-gamma and K-K-gamma.
•Provides a reliable tool for form-factor calculations and resonance studies.

Reference

“The Omnès matrix developed here provides a reliable dispersive input for form-factor calculations and resonance studies in the tensor-meson sector.”

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Physics #Heavy-Ion Physics, Quarkonium Production, Photon Physics 🔬 ResearchAnalyzed: Jan 3, 2026 19:00

Azimuthal Asymmetry in Quarkonium Production in Heavy-Ion Collisions

Published:Dec 29, 2025 08:50

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1 min read

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ArXiv

Analysis

This paper explores the production of $J/ψ$ mesons in ultraperipheral heavy-ion collisions at the LHC, focusing on azimuthal asymmetries arising from the polarization of photons involved in the collisions. It's significant because it provides a new way to test the understanding of quarkonium production mechanisms and probe the structure of photons in extreme relativistic conditions. The study uses a combination of theoretical frameworks (NRQCD and TMD photon distributions) to predict observable effects, offering a potential experimental validation of these models.

Key Takeaways

•Investigates $J/ψ$ production in ultraperipheral heavy-ion collisions.
•Focuses on azimuthal asymmetries due to photon polarization.
•Uses NRQCD and TMD photon distributions for theoretical predictions.
•Predicts observable $\cos(2φ)$ and $\cos(4φ)$ asymmetries.
•Offers a new test of quarkonium production mechanisms and photon structure.

Reference

“The paper predicts sizable $\cos(2φ)$ and $\cos(4φ)$ azimuthal asymmetries arising from the interference of linearly polarized photon states.”

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Physics #Hadron Physics, QCD 🔬 ResearchAnalyzed: Jan 3, 2026 16:16

Molecular States of $J/ψB_{c}^{+}$ and $η_{c}B_{c}^{\ast +}$ Analyzed

Published:Dec 28, 2025 18:14

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1 min read

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ArXiv

Analysis

This paper investigates the properties of hadronic molecules composed of heavy quarks using the QCD sum rule method. The study focuses on the $J/ψB_{c}^{+}$ and $η_{c}B_{c}^{\ast +}$ states, predicting their mass, decay modes, and widths. The results are relevant for experimental searches for these exotic hadrons and provide insights into strong interaction dynamics.

Key Takeaways

•The paper uses the QCD sum rule method to study hadronic molecules.
•It focuses on the $J/ψB_{c}^{+}$ and $η_{c}B_{c}^{\ast +}$ states.
•The study predicts the mass and decay width of the molecules.
•The results are relevant for experimental searches for exotic hadrons.

Reference

“The paper predicts a mass of $m=(9740 \pm 70)~\mathrm{MeV}$ and a width of $Γ[ \mathfrak{M}]=(121 \pm 17)~ \mathrm{MeV}$ for the hadronic axial-vector molecule $\mathfrak{M}$.”

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Physics #High Energy Physics, Artificial Neural Networks 🔬 ResearchAnalyzed: Jan 4, 2026 00:15

ANN for Diffractive J/ψ Production at HERA

Published:Dec 25, 2025 14:56

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1 min read

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ArXiv

Analysis

This paper uses an Artificial Neural Network (ANN) to analyze data from the HERA experiment on coherent diffractive J/ψ production. The authors aim to provide a model-independent analysis, overcoming limitations of traditional model-dependent approaches. They predict differential cross-sections and extend the model to include LHC data, extracting the exponential slope 'b' and analyzing its dependence on kinematic variables. This is significant because it offers a new, potentially more accurate, way to analyze high-energy physics data and extract physical parameters.

Key Takeaways

•Applies an ANN to analyze HERA data on diffractive J/ψ production.
•Provides a model-independent approach to overcome limitations of existing methods.
•Predicts differential cross-sections and extracts the exponential slope 'b'.
•Demonstrates the dependence of 'b' on kinematic variables ($Q^2$ and $W$).

Reference

“The authors find that the exponential slope 'b' strongly depends on $Q^2$ and $W$.”

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Research #physics 🔬 ResearchAnalyzed: Jan 4, 2026 07:49

A Comprehensive holographic Study of Proton Structure: From Spectroscopy and Form Factors to the $γp\rightarrow J/ψp$ Scattering Cross Section

Published:Dec 19, 2025 13:22

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1 min read

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ArXiv

Analysis

This article presents a research study on proton structure using holographic methods. It covers a range of topics including spectroscopy, form factors, and scattering cross sections. The use of holographic techniques suggests a theoretical approach to understanding the proton's internal structure.

Key Takeaways

•The study focuses on the internal structure of the proton.
•It utilizes holographic methods for analysis.
•The research covers spectroscopy, form factors, and scattering cross sections.

Reference

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$J/ψΛ$ femtoscopy and the nature of $P_{ψs}^Λ(4338)$

Analysis

Key Takeaways

Omnès Matrix for Tensor Meson Decays

Analysis

Key Takeaways

Azimuthal Asymmetry in Quarkonium Production in Heavy-Ion Collisions

Analysis

Key Takeaways

Molecular States of $J/ψB_{c}^{+}$ and $η_{c}B_{c}^{\ast +}$ Analyzed

Analysis

Key Takeaways

ANN for Diffractive J/ψ Production at HERA

Analysis

Key Takeaways

A Comprehensive holographic Study of Proton Structure: From Spectroscopy and Form Factors to the $γp\rightarrow J/ψp$ Scattering Cross Section

Analysis

Key Takeaways

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