Precise measurement of the form factors in D0K(892)+νD^0\rightarrow K^*(892)^-\ell^+ν_{\ell} and observation of D0K2(1430)+νD^0\rightarrow K_2^*(1430)^-\ell^+ν_{\ell}

Using 20.3 fb⁻¹ of data from the BESIII detector, this study presents the most precise measurements to date of the branching fractions and hadronic form factors for the dominant D0K(892)+νD^0\rightarrow K^*(892)^-\ell^+\nu_{\ell} decays, while also reporting the first observation of the D0K2(1430)+νD^0\rightarrow K_2^*(1430)^-\ell^+\nu_{\ell} process and the first model-independent measurement of the S\mathcal{S}-wave phase shift in the Kˉ0π\bar{K}^0\pi^- system.

BESIII Collaboration, M. Ablikim, M. N. Achasov + 700 more2026-03-05🔬 physics

Improved Pion-Kaon Identification in Heavy-Ion Collisions with a Two-Dimensional Transformation

This paper presents a novel two-dimensional shift and rotation method that leverages the correlation between time-of-flight mass-squared and ionization energy loss to significantly improve charged pion and kaon identification in heavy-ion collisions, extending the reliable measurement range to approximately 3 GeV/cc while maintaining over 98% purity and preserving elliptic flow consistency.

Shaowei Lan, Bijun Fan, Like Liu2026-03-05🔬 physics

From Beam to Bedside: Reinforcing Domestic Supply of 99^{99}Mo/99m^{99m}Tc using Novel High-Current D+ Cyclotrons for Compact Neutron Generation and 99^{99}Mo Production

This paper proposes a novel, decentralized approach to securing the domestic supply of the medical isotope 99^{99}Mo by adapting high-current deuterium cyclotrons, originally designed for neutrino research, to generate sufficient neutrons for isotope production without relying on nuclear reactors or highly enriched uranium.

Jarrett Moon, Daniel Winklehner, Jose Alonso + 3 more2026-03-05🔬 physics

Magneto-νν: Heavy neutral lepton search using 241^{241}Pu ββ^- decays

The MAGNETO-ν\nu experiment utilized a high-statistics measurement of 241^{241}Pu β\beta^- decays with metallic magnetic calorimeters to find no evidence for keV-scale heavy neutral leptons, thereby establishing an upper limit of Ue42<1.31×103|U_{e4}|^2 < 1.31 \times 10^{-3} at 95% confidence for an 11.5-keV HNL mixing with the electron neutrino.

C. Lee, X. Zhang, A. Kavner + 12 more2026-03-05🔬 physics

End-to-end event reconstruction for precision physics at future colliders

This paper presents an end-to-end global event reconstruction framework combining geometric algebra transformers and object condensation clustering that significantly outperforms state-of-the-art rule-based algorithms in efficiency, fake-particle suppression, and mass resolution for future collider experiments like FCC-ee, thereby enabling rapid detector design iteration by decoupling performance from detector-specific tuning.

Dolores Garcia, Lena Herrmann, Gregor Krzmanc + 1 more2026-03-05🤖 cs.AI

e+essˉe^+e^- \rightarrow s\bar{s} at s=250\sqrt{s} = 250 GeV at future linear colliders

This paper demonstrates that precise measurements of the forward-backward asymmetry in e+essˉe^+e^- \rightarrow s\bar{s} events at s=250\sqrt{s}=250 GeV are feasible at future linear colliders using full ILD simulations, provided that advanced particle identification techniques like Comprehensive PID and cluster counting are employed to optimize charge reconstruction and maximize sensitivity to electroweak and new-physics effects.

J. P. Márquez, R. Pöeschl, A. Irles + 1 more2026-03-05⚛️ hep-ph

Flavor in Ninths and a Discrete Gauge Origin of the QCD Axion

This paper proposes a unified framework where a "flavor in ninths" structure arises from a discrete Z18\mathbb{Z}_{18} gauge symmetry that simultaneously explains quark and lepton hierarchies, stabilizes the QCD axion with NDW=1N_{\rm DW}=1 and a specific E/NE/N ratio, and naturally solves the axion quality problem via high-dimensional operators, predicting a dark matter axion within the reach of near-term experiments.

Vernon Barger2026-03-05⚛️ hep-ph