High Energy Accelerator Research Organization

Machine Learning on Heterogeneous, Edge, and Quantum Hardware for Particle Physics

The next generation of particle physics experiments will face an era of challenges in data acquisition, due to unprecedented data rates and volumes along with extreme environments and operational constraints. Harnessing these data for scientific discovery demands real-time infere...

Gauss law constraint in A-theory branes

{\cal A} -theory realizes U-duality symmetry by extending the string worldsheet to a higher dimensional brane worldvolume, in which the worldvolume and the spacetime belong to different representations of the exceptional group. The closure of the brane Virasoro algebra requires t...

Toward AI-agent-driven particle transport simulations: implementation of AI-assisted workflows for PHITS

Monte Carlo particle transport codes are powerful tools, but their use requires substantial knowledge of input preparation, execution, and result analysis. In this study, we present a code-side strategy for applying existing AI assistants and AI agents to PHITS. Two complementary...

Development and characterization of low-scattering vanadium nanoparticle targets for short-range interaction searches

We developed high-purity vanadium-based nanoparticle targets for neutron scattering experiments aimed at exploring gravity-like short-range new interactions in the submicron regime. Vanadium and V-Ni nanoparticles were fabricated using top-down and bottom-up methods and quantitat...

Octahedral tilt relaxation decoupled from lattice parameters in epitaxial perovskite oxide films

Epitaxial strain in perovskite oxide thin films is conventionally understood through lattice parameter modulation, characterized by the c / a ratio of the pseudocubic cell. However, internal atomic arrangements such as octahedral tilting can relax independently, a phenomenon that...

The DESI Y1 RR Lyrae Catalog. I. Empirical Modeling of the Cyclic Variation of Spectroscopic Properties and a Chemodynamical Analysis of the Outer Halo

Abstract We present the catalog of RR Lyrae stars (RRLs) observed in the first year of operations of the Dark Energy Spectroscopic Instrument (DESI) survey. This catalog contains 6240 RRLs out to ∼120 kpc from the Galactic center and over 12,000 individual epochs with homogeneous...

Data for "The QCD phase diagram for three-flavor Möbius domain-wall fermions"

This dataset contains the processed numerical data and plotting scripts underlying the figures in the article "The QCD phase diagram for three-flavor Möbius domain-wall fermions". Each directory corresponds to one or more figures in the paper. The gauge-field ensembles and raw me...

Natural radioactivity and associated hazard indices from a gas field (Fenchuganj, Bangladesh): Assessment and management guidelines

It is crucial to carry out thorough research and risk assessments in the oil and gas production and processing sectors because of the possible health risks associated with the redistribution of naturally occurring radioactive materials (NORMs). Radioactivity levels in surface soi...

Spin magnetic moments in the half-metallic ferromagnet—ferromagnet interface region detected by depth-resolved x-ray magnetic circular dichroism

We study spin magnetic moments near half-metallic Co2FexMn1−xSi (CFMS)/metal interfaces using depth-resolved x-ray magnetic circular dichroism (XMCD) and analyze their robustness against thermal fluctuations. We prepare epitaxial magnetic multilayered films with CFMS/CoFe and CFM...

Helical-to-Fan Transitions under Magnetic Fields in the Noncentrosymmetric Tetragonal Magnet EuRhGe 3

The magnetic structure of EuRhGe 3 , a noncentrosymmetric body-centered tetragonal magnet with the space group I4mm, has been investigated by resonant X-ray diffraction. Below T N = 12 K, EuRhGe 3 undergoes a helical magnetic ordering with an incommensurate propagation vector [Fo...

Structural insights into fosfomycin efflux by a streptococcal ABC transporter

ABSTRACT Gram-positive bacteria encode a broad array of ABC transporters that mediate substrate translocation across the cell membrane, with some contributing to their survival under environmental stresses such as antimicrobial exposure. While several of these transporters have b...

Negative-Muon Depth Profiling Reveals Near-Surface Gold Enrichment in Historical Shachihoko Scales from Nagoya Castle

Surviving fish-scale plates from the golden shachihoko (Kin-shachi) ornaments of Nagoya Castle are rare historical gold–silver (Au–Ag) materials. Recent X-ray fluorescence (XRF) analysis and color measurements indicated a discrepancy between the bulk Au concentration and the visi...

Improving calibration accuracy with torque coupled gravity field calibrator for sub-Hz gravitational wave observation in CHRONOS

Abstract A fundamental challenge in low-frequency gravitational-wave detectors is the limited signal-to-noise ratio (SNR) of calibration lines, particularly in torsion-bar systems where the response is governed by rotational dynamics. In this work, we resolve this issue by optimi...

The emergence of (3+1)-dimensional expanding spacetime from complex Langevin simulations of the Lorentzian type IIB matrix model with deformations

Abstract The Lorentzian type IIB matrix model is a promising candidate for a nonperturbative formulation of superstring theory. In this model, the eigenvalue distribution of the N × N bosonic matrices Aμ (μ = 0, …, 9) represents an emergent spacetime, which is determined by the d...

Molecular Flux Density Distribution at the Pump Flange of a Test Dome for Measuring the Speed of a High Vacuum Pump

A numerical analysis has been obtained on the distribution of the molecular flux density qo(r) at the pump aperture of a test dome for measuring the speed of a high vacuum pump. The caluculation was carried out based on solving Clausing's integral equation by using iterative appr...

ElectronicStructure of Cu-Phthalocyanine Metal–OrganicFramework

Abstract Metal phthalocyanine metal–organic frameworks (MPc-MOFs) possess a crystalline structure consisting of stacked molecular layers that form a square lattice composed of metal phthalocyanine (MPc) units. The unique structure of these MPc-MOF molecular layers is theoreticall...

Review of Particle Physics *

The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,200 new measurements from 903 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and b...

Observational signatures of negative mass wormholes through their shadows

Abstract Systems containing objects with negative mass (NMOs) are considered. Such a system consists of one object with positive mass and one NMO, where a bound state exists even though the force exerted by the NMO on the object with positive-mass is repulsive. Unlike standard bi...

Decoupling Electronic Activation and Pore Connectivity in Acidic Oxygen Reduction on Metal‐Free Biomass‐Derived Carbon Catalysts

Acidic oxygen reduction is often discussed as if catalytic activation and mass transport were inseparable. Here, biomass‐derived carbon was used to examine these contributions through oxidation, ammonia annealing, and KOH activation. The onset potential is associated primarily wi...