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Research Paper #Particle Physics, String Theory, QCD 🔬 ResearchAnalyzed: Jan 3, 2026 17:05

Open Strings and Diquarks Describe Baryon Mass Spectrum

Published:Dec 31, 2025 14:20

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1 min read

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ArXiv

Analysis

This paper proposes a novel approach to understanding hadron mass spectra by applying open string theory. The key contribution is the consistent fitting of both meson and baryon spectra using a single Hagedorn temperature, aligning with lattice-QCD results. The implication of diquarks in the baryon sector further strengthens the connection to Regge phenomenology and offers insights into quark deconfinement.

Key Takeaways

•Applies open string theory to model hadron mass spectra.
•Achieves consistent fitting of meson and baryon spectra with a single Hagedorn temperature.
•Suggests the importance of diquarks in the baryon structure.
•Provides insights into quark deconfinement.
•The Hagedorn temperature value aligns with lattice-QCD calculations.

Reference

“The consistent value for the Hagedorn temperature, $T_{ m H} \simeq 0.34\, ext{GeV}$, for both mesons and baryons.”

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Physics #Dark Matter, Higgs Physics, LHC 🔬 ResearchAnalyzed: Jan 3, 2026 08:40

Probing Dark Jets from Higgs Decays at LHC

Published:Dec 31, 2025 12:00

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1 min read

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ArXiv

Analysis

This paper explores a novel search strategy for dark matter, focusing on a specific model where the Higgs boson decays into dark sector particles that subsequently produce gluon-rich jets. The focus on long-lived dark mesons decaying into gluons and the consideration of both cascade decays and dark showers are key aspects. The paper highlights the importance of trigger selection for detection and provides constraints on the branching ratios at the high-luminosity LHC.

Key Takeaways

Reference

“The paper finds that appropriate trigger selection constitutes a crucial factor for detecting these signal signatures in both tracker system and CMS muon system. At the high-luminosity LHC, the exotic Higgs branching ratio to cascade decays (dark showers) can be constrained below $\mathcal{O}(10^{-5}-10^{-1})$ [$\mathcal{O}(10^{-5}-10^{-2})$] for dark meson proper lifetimes $c\tau$ ranging from $1$ mm to $100$ m.”

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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

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 #Particle Physics 🔬 ResearchAnalyzed: Jan 4, 2026 06:51

Study of $\bar{K}^*(892)^0 \eta$ and $K_S^0 a_0(980)^0$ in the $D^{0} \to K_{S}^{0}\pi^0\eta$ decay

Published:Dec 29, 2025 11:27

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1 min read

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ArXiv

Analysis

This article presents a study on the decay of D0 mesons, specifically focusing on the production of $\bar{K}^*(892)^0 \eta$ and $K_S^0 a_0(980)^0$ particles. The research likely involves analyzing experimental data to understand the decay mechanisms and properties of these particles. The use of specific particle physics notations indicates a highly specialized audience.

Key Takeaways

Reference

“The study likely aims to understand the dynamics of particle interactions within the D0 meson decay.”

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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

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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research #particle physics 🔬 ResearchAnalyzed: Jan 4, 2026 06:50

The $B^{+(0)} \to \bar D^{0(-)} D^{}_{s0}(2317)^+$ decays and the molecular structure of $D^_{s0}(2317)$

Published:Dec 27, 2025 14:14

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1 min read

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ArXiv

Analysis

This article likely presents research on particle physics, specifically focusing on the decay of B mesons and the structure of the $D^*_{s0}(2317)$ meson. The title suggests an investigation into the decay modes of B mesons and how they relate to the internal composition of the $D^*_{s0}(2317)$ particle, potentially exploring the hypothesis that it's a molecular state.

Key Takeaways

Reference

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Research Paper #Particle Physics, Quark Model, Meson Spectroscopy 🔬 ResearchAnalyzed: Jan 3, 2026 20:01

Quark Coalescence and Excited Meson States

Published:Dec 27, 2025 04:59

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1 min read

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ArXiv

Analysis

This paper investigates the formation of mesons, including excited states, from coalescing quark-antiquark pairs. It uses a non-relativistic quark model with a harmonic oscillator potential and Gaussian wave packets. The work is significant because it provides a framework for modeling excited meson states, which are often overlooked in simulations, and offers predictions for unconfirmed states. The phase space approach is particularly relevant for Monte Carlo simulations used in high-energy physics.

Key Takeaways

•Models meson formation using quark coalescence.
•Focuses on excited meson states, including those from the Particle Data Book.
•Employs a phase space picture suitable for Monte Carlo simulations.
•Provides estimates for masses and decay branching ratios of unconfirmed states.
•Highlights the abundant population of excited meson states in jets.

Reference

“The paper demonstrates that excited meson states are populated abundantly for typical parton configurations expected in jets.”

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Research #Physics 🔬 ResearchAnalyzed: Jan 4, 2026 08:04

Charm quark and QGP interactions through the spectra and anisotropic flow of D$^0$ over the widest p$_ ext{T}$ interval using event-shape engineering at CMS

Published:Dec 25, 2025 22:04

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1 min read

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ArXiv

Analysis

This article reports on research conducted at the CMS experiment, focusing on the interactions of charm quarks within the Quark-Gluon Plasma (QGP). The study utilizes the spectra and anisotropic flow of D$^0$ mesons across a broad transverse momentum (p$_ ext{T}$) range, employing event-shape engineering techniques. This suggests a detailed investigation into the behavior of heavy quarks in extreme conditions.

Key Takeaways

Reference

“The article's focus on D$^0$ mesons and their properties (spectra and anisotropic flow) indicates a deep dive into understanding the QGP's properties and the behavior of heavy quarks within it.”

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Physics #Heavy Ion Physics, Quark-Gluon Plasma 🔬 ResearchAnalyzed: Jan 4, 2026 00:07

Charm Quark Interactions and Hadronization in Heavy Ion Collisions

Published:Dec 25, 2025 19:39

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1 min read

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ArXiv

Analysis

This paper presents new measurements from the CMS experiment in Pb-Pb collisions, focusing on the elliptic and triangular flow of Ds mesons and the nuclear modification factor of Lambda_c baryons. These measurements are crucial for understanding the behavior of charm quarks in the Quark-Gluon Plasma (QGP), providing insights into energy loss and hadronization mechanisms. The comparison of Ds and D0 flow, and the Lambda_c/D0 yield ratio across different collision systems, offer valuable constraints for theoretical models.

Key Takeaways

Reference

“The paper measures the elliptic ($v_2$) and triangular ($v_3$) flow of prompt $\mathrm{D}_{s}^{\pm}$ mesons and the $\mathrmΛ_{c}^{\pm}$ nuclear modification factor ($R_{AA}$).”

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Research #Particle Physics 🔬 ResearchAnalyzed: Jan 10, 2026 17:54

Lattice QCD Analysis of $D_s$ Meson Decay

Published:Dec 25, 2025 10:04

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1 min read

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ArXiv

Analysis

This research explores a specific particle decay using lattice QCD, a computational method. The findings contribute to the understanding of fundamental physics by refining theoretical models.

Key Takeaways

•Focuses on the semileptonic decay of $D_s$ mesons.
•Employs (2+1)-flavor lattice QCD for analysis.
•Aims to determine form factors related to the decay process.

Reference

“The article's context indicates the study uses (2+1)-flavor lattice QCD.”

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Research #physics 🔬 ResearchAnalyzed: Jan 4, 2026 08:50

The role of charm and unflavored mesons in prompt atmospheric lepton fluxes

Published:Dec 19, 2025 18:37

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1 min read

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ArXiv

Analysis

This article likely discusses the contribution of charm and unflavored mesons to the flux of leptons (like muons and electrons) produced promptly in the atmosphere. Prompt leptons are those produced directly in particle interactions, as opposed to those from the decay of longer-lived particles. The research probably involves theoretical calculations and/or simulations to understand the composition and behavior of these fluxes.

Key Takeaways

•Focuses on the production of leptons in the atmosphere.
•Investigates the role of charm and unflavored mesons.
•Likely uses theoretical calculations and/or simulations.

Reference

“”

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Research #Physics 🔬 ResearchAnalyzed: Jan 4, 2026 08:45

Unified study of $B_s^0 o X(3872) π^+π^- (K^+ K^-)$ and $B_s^0 o ψ(2S) π^+π^- (K^+ K^-)$ processes

Published:Dec 19, 2025 16:28

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1 min read

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ArXiv

Analysis

This article describes a research study focusing on specific decay processes of B mesons. The study likely aims to understand the properties of exotic hadrons like X(3872) and the behavior of these decays. The use of the ArXiv source indicates this is a pre-print or research paper.

Key Takeaways

•Focuses on specific decay processes of B mesons.
•Likely investigates properties of exotic hadrons like X(3872).
•Based on a research paper or pre-print.

Reference

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Research #Particle Physics 🔬 ResearchAnalyzed: Jan 10, 2026 17:52

Precise Measurements of Particle Decay in Quarkonia Physics

Published:Dec 16, 2025 12:54

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1 min read

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ArXiv

Analysis

This research paper presents crucial measurements in the field of particle physics, specifically focusing on the decay modes of chi_cJ mesons. These results provide valuable data for refining theoretical models and understanding the strong interaction.

Key Takeaways

Reference

“The paper focuses on the branching fractions of specific decay modes of chi_cJ mesons.”

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Research #Particle Physics 🔬 ResearchAnalyzed: Jan 10, 2026 11:31

Precision Measurement of $D^+$ Meson Decay: Branching Fractions and Amplitude Analysis

Published:Dec 13, 2025 17:07

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1 min read

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ArXiv

Analysis

This article from ArXiv likely presents cutting-edge research in particle physics, focusing on the decay of $D^+$ mesons. The work probably involves complex data analysis techniques to determine branching fractions and understand decay amplitudes.

Key Takeaways

Reference

“The research focuses on the decay $D^+ o π^+π^0π^0$.”

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