Measurement of the e+eπ+ππ0e^+e^-\toπ^+π^-π^0 cross section in the energy region from 0.56 to 1.1 GeV with the SND detector

Using data collected by the SND detector at the VEPP-2000 collider, this paper presents a precise measurement of the e+eπ+ππ0e^+e^-\to\pi^+\pi^-\pi^0 cross section in the 0.56–1.1 GeV energy range, yielding improved resonance parameters and a refined calculation of the leading-order hadronic contribution to the muon magnetic anomaly.

SND Collaboration, M. N. Achasov, A. E. Alizzi + 44 more2026-03-06🔬 physics

Relativistic distorted-wave analysis of the missing-energy spectrum measured with monochromatic νμν_μ-12^{12}C interactions at JSNS2^{2}

This paper analyzes the missing-energy spectrum from monochromatic neutrino-12^{12}C interactions measured by the JSNS2^2 collaboration using a relativistic distorted-wave approach with an improved spectral function, while discussing the roles of nuclear recoil, final-state interactions, and neutrino event generators in describing low-energy nuclear effects.

J. M. Franco-Patino, J. García-Marcos, V. Belocchi + 3 more2026-03-06🔬 physics

Capability Thresholds and Manufacturing Topology: How Embodied Intelligence Triggers Phase Transitions in Economic Geography

This paper argues that as embodied AI crosses critical thresholds in dexterity, generalization, and reliability, it will trigger a phase transition in economic geography by dismantling the century-old Fordist paradigm of centralized mega-factories and replacing labor-driven site selection with a new topology defined by demand-proximal micro-manufacturing and machine-optimal environmental conditions.

Xinmin Fang, Lingfeng Tao, Zhengxiong Li2026-03-06🔬 physics

Nonlinear Dynamics in General Relativity

This paper uncovers new nonlinear facets of gravity within the Einstein-Klein-Gordon system, demonstrating higher harmonic generation, spectral broadening, and focusing, while showing that weak frequency sensitivity in vacuum wave scattering at quadratic order helps explain the smooth behavior of black hole mergers yet cautions against overly simplistic waveform interpretations.

Vitor Cardoso, Jaime Redondo-Yuste, Ulrich Sperhake + 1 more2026-03-06🔬 physics

Regge trajectories from the adjoint sector of Matrix Quantum Mechanics

This paper demonstrates that the adjoint sector of large-NN SU(NN) matrix quantum mechanics exhibits universal Regge trajectories at criticality, corresponding to oscillatory excitations of short folded open strings in dual two-dimensional string theory, which transition into long strings extending into the Liouville direction slightly away from criticality.

Igor R. Klebanov, Henry W. Lin, Pavel Meshcheriakov2026-03-06🔬 physics

Projected Hessian Learning: Fast Curvature Supervision for Accurate Machine-Learning Interatomic Potentials

The paper introduces Projected Hessian Learning (PHL), a scalable framework that enables efficient, curvature-informed training of machine-learning interatomic potentials by utilizing stochastic Hessian-vector products instead of explicit Hessian matrices, thereby achieving full-second-order accuracy with significantly reduced computational cost and memory requirements.

Austin Rodriguez, Justin S. Smith, Sakib Matin + 3 more2026-03-06🔬 physics

Split Casimir Operator of the Lie Algebra so(2r) in Spinor Representations, Colour Factors and Yang-Baxter Equation

This paper derives characteristic identities for the split Casimir operator of the Lie algebra so(2r)so(2r) in spinor representations to construct invariant projectors, calculate colour factors for ladder Feynman diagrams in Spin(2r)Spin(2r) gauge theories, and obtain a new so(2r)so(2r)-invariant solution to the Yang-Baxter equation.

A. P. Isaev, A. A. Provorov2026-03-06🔬 physics