High Energy Accelerator Research Organization

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...