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physics.data-an

Data Analysis, Statistics and Probability

Methods, software and hardware for physics data analysis: data processing and storage; measurement methodology; statistical and mathematical aspects such as parametrization and uncertainties.

Papers reviewed in the last 7 days lead, then the papers readers actually read. Ranking is not a quality score.

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Neutron capture gives sapphire a 1.1 keV calibration peak

Thermal neutron capture on 27Al leaves a 1113.6 eV recoil line, a source-free calibration for low-energy detectors.

· “Observation of a low energy nuclear recoil peak in the neutron calibration data of an Al₂O₃ crystal in CRESST-III”

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Figure from the paper

Neural net sorts Hoyle decay branches with F1 up to 0.87

Training on simulated 2D track images, the net separates rare 12C decays from scattering backgrounds in a planned TPC.

· “Classification of Hoyle State Decay Branches in Active Target Time Projection Chamber using Neural Network”

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FFT-based neural classifier keeps neutron/gamma accuracy at low rates

Charge-normalized FFT spectra push adversarial ROC AUC to 0.999 at 10 MS/s, where the fixed index falls to 0.751.

· “Towards energy-insensitive and robust neutron/gamma classification: A learning-based frequency-domain parametric approach”

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Figure from the paper

Neural nets spot the many-body critical phase in raw spectra

Trained on plain eigenvalue spacings, the classifiers match known boundaries and reproduce scaling exponents from standard methods.

· “Supervised and unsupervised learning of the many-body critical phase, phase transitions, and critical exponents in disordered quantum systems”

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Figure from the paper

TNOs split into two birth populations

Across 696 Dark Energy Survey objects, size is shared but color and variability track place of origin.

· “Photometry of outer Solar System objects from the Dark Energy Survey II: a joint analysis of trans-Neptunian absolute magnitudes, colors, lightcurves and dynamics”

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Figure from the paper

Diffusion models hit 95% F1 despite 82% missing air-quality data

Ensemble and diffusion classifiers keep near-95% accuracy on PM2.5 levels despite a sparse urban monitoring grid.

· “Comparative Analysis of Machine Learning-Based Imputation Techniques for Air Quality Datasets with High Missing Data Rates”

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Rule-of-thumb solar farm layouts miss up to 23% cheaper power

Bayesian optimization over tilt and row spacing beats latitude-plus-winter-solstice design, especially on pricey land.

· “Minimising the Levelised Cost of Electricity for Bifacial Solar Panel Arrays using Bayesian Optimisation”

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Turning angles expose anisotropies invisible to covariance analysis

It estimates how much faster molecules move along one axis even from short, randomly oriented tracks.

· “Turning angle analysis reveals hidden anisotropies in the anomalous diffusion of molecules in live cells”

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Figure from the paper

A small CNN with guided attention wins on blazar forecasts

Physics-informed attention beats larger models on astrophysical light curves and matches them on milling data.

· “PhysAttNet: Enhancing Predictive Performance in Industrial and Astrophysical Time Series via Physics-Informed Attention”

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Figure from the paper

NestyNet fits physics functions 2,100x more accurately

A segmented softplus network trained with Levenberg-Marquardt returns exact gradients, Hessians, and Laplacians.

· “NestyNet. I. Physics Functions Are Hard to Fit with Neural Networks: A Framework for Accurate Surrogates and Analytic Derivatives”

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Figure from the paper

Slope of forecast errors recovers negative Lyapunov exponents

Nearest-neighbor forecast-error decay gives contraction rates from short recovery responses, without a Jacobian.

· “Equation-Free Period-Aware Forecast-Error Contraction for Estimating Negative Largest Lyapunov Exponents from Short Trajectory Ensembles”

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Figure from the paper

Zonal market backcast: £2.3bn a year in GB consumer savings

A calibrated model of 2022-2024 shows six zones would cut consumer costs by £9.4/MWh even as northern generators lose 30-40% of revenue.

· “Risk and Reward of Transitioning from a National to a Zonal Electricity Market in Great Britain”

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Figure from the paper

Carbon-12's 2+ state is far more oblate than theory predicts

The measured +0.09 eb quadrupole moment exceeds ab initio predictions and calls for alpha clustering and triaxiality.

· “Extremely large oblate deformation of the first excited state in ¹²C: a new challenge to modern nuclear theory”

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Figure from the paper

Correlated hopping reopens extended states in a localized chain

A finite fraction of states re-extends at λ≈1.55–2.1 (Fibonacci) and λ≈0.7–1.3 (Bronze Mean), beyond the localization threshold.

· “Reentrant localization in a quasiperiodic chain with correlated hopping sequences”

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Figure from the paper

Gold-nanoparticle survival curves now follow from one dose ratio

A modified local-effect model predicts cell survival from the dose-enhancement ratio alone, skipping voxel simulations.

· “Monte Carlo Simulation and Dosimetric Analysis of Gold Nanoparticles (AuNPs) in Breast Tissue”

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Figure from the paper

Largest public superconductor materials database now online

Free portal unites peer-reviewed data on superconductors and the auxiliary materials their devices need.

· “An Open and Collaborative Database of Properties of Materials for High-Temperature Superconducting-Based Devices”

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Bone drug lets failed brain-ultrasound ablations succeed on retry

A 6–12 month course of the osteoporosis drug raised skull density and focal temperatures, and all five repeat ablations succeeded.

· “The Use of Alendronate to Enhance Transcranial Transmission of Focused Ultrasound for Successful Ablations in Brain”

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Figure from the paper

O-information finds which variables integrate hidden factors

The same score works for any dataset that can be summarized by latent factors, from brain scans to gene expression.

· “Localizing synergies of hidden factors across complex systems: resting brain networks and HeLa gene expression profile as case studies”

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Figure from the paper

Simulation predicts how self-healing interleaves steer CFRP damage

Open-hole tension models match tests within about 13 percent, with melt-spun interleaves localizing damage.

· “Numerical Analysis of Damage Evolution in Open Hole CFRP Laminates Modified with Electrospun Self Healing Diels Alder Interleaves”

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Simulations validate GNP-modified self-healing composite interleaves

A quintilinear cohesive-law model matches measured Mode I delamination onset and ranks BMI & GNP interleaves best.

· “Validating The Effectiveness of Electrospun Self Healing Diels Alder Interleaves to Mode I fracture resistance by Comparing Simulation Outputs with Experimental Results”

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