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General physics spanning optics, fluids, plasma, atomic, and applied physics.

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Physics

Hard X-Ray Laser Reconstructs a Single Protein in 3D

Nanofocused 6 keV XFEL pulses and diffraction-pattern classification recover erythrocruorin to roughly 20 Å in three dimensions without cryo-fixation.

physics
Oct 11, 20264 min2610.11892
Physics

Binding Energy Reshapes Compton Electron Emission

Coincidence measurements with 20 keV photons show that the residual ionic potential can deflect and back-reflect Compton electrons across five bound orbitals.

physics
Oct 7, 20264 min2610.06242
Physics

Three-Crystal Array Cuts SPS Extraction Losses Fourfold

Three bent silicon crystals use volume reflection to steer septum-bound protons away, reaching the loss reduction needed for higher-intensity SPS extraction.

physics
Oct 5, 20264 min2609.23823
Physics

DarkSide-50 Links Delayed Electrons to Impurities

Time-correlation measurements separate impurity release from grid photo-ionization, identifying 30–70% of low-electron backgrounds as potentially reducible.

hep-exphysics
Oct 2, 20264 min2507.23003
Physics

Antiproton–Positronium Measurements Agree With Antihydrogen Formation Calculations

GBAR measures charge-exchange production at 4.15 and 6.2 keV, finding cross sections consistent with recent three-body calculations.

hep-exphysics
Sep 30, 20264 min2609.33990
Physics

SiPM Readout Separates Cherenkov and Scintillation Light

Optical filtering plus waveform-template fitting separates two crystal-light components event by event, reaching Cherenkov yields up to about 150 photoelectrons per GeV.

physics
Sep 27, 20264 min2604.09918
Physics

Permanent-Magnet Penning Trap Reaches 47 ppb Axial Stability

A 4 K NdFeB trap combines a 280 mT permanent field with superconducting image-current readout to demonstrate single-particle precision without a superconducting magnet.

physics
Sep 25, 20265 min2609.26858
Physics

Germanium Detector Resolves Individual Electron-Hole Pairs

A point-contact NbSi sensor concentrates charge-drift phonons near the TES, resolving single pairs at 20 mK while separating ionizing from non-ionizing backgrounds.

physics
Sep 22, 20264 min2609.23110
Physics

Squeezed Light Evades Back-Action in 40-Kilogram Oscillator

Frequency-dependent squeezing creates a negative imprecision–back-action correlation, cutting observed motion near a feedback-defined resonance by about 47%.

quant-phgr-qcphysics
Sep 20, 20264 min2609.19317
Physics

Laser Spectroscopy Strengthens Evidence for the N=32 Closure

Sensitive collinear spectroscopy of calcium isotopes links a single-particle-like $^{53}\mathrm{Ca}$ moment and a steeper charge-radius rise toward $^{54}\mathrm{Ca}$ to a robust shell closure.

nucl-thphysics
Sep 17, 20263 min2608.10943