Skip to main content

News

Direct neutrino-mass measurement based on 259 days of KATRIN data

The KATRIN beamline. Tritium gas is continuously injected into the source, where it decays, producing β-electrons. (Inset) The source volume, filled with a plasma of low-energy electrons and tritiated ions. The tritium gas is pumped out, purified, and recirculated, whereas the electrons are guided magnetically through the transport section into the spectrometer. Only electrons with sufficient energy to overcome the electrostatic potential in the analyzing plane are counted at the detector. The analyzing plane is shifted toward the detector for background reduction.

Using Mesh Refinement To Accurately Simulate Relativistic Magnetic Reconnection In Plasmas

Comparison of temporal evolution of normalized out-of-plane current density obtained from three 2D uniform grid simulations. Credit: Phys. Plasmas 32, 013905 (2025), https://doi.org/10.1063/5.0233583

Coupling Particle-In-Cell And Monte Carlo Collisions To Improve The Accuracy of Numerical Simulations

The electron temperature att = 66ns from 1-Dmagnetic-piston simulations, obtained using the WarpX electromagnetic PIC solver with different MCC placements: (left) pre v-push MCC, (middle) mid v-push MCC and (right) mid x-push MCC. Credit: Phys. Rev. E 111, 025306 – Published 19 February, 2025. DOI: 10.1103/PhysRevE.111.025306.

ATLAS and ALICE collaborations receive 2025 Breakthrough Prize in Fundamental Physics

Left: One of the early collision events with stable beams recorded by ATLAS on April 23, 2016, with two reconstructed muon candidates (Image: CERN). Right: Lead-lead collisions at the Large Hadron Collider at 5.02TeV per nucleon pair in the center of mass, recorded by the ALICE detector in 2018 (Image: David Dobrigkeit Chinellato and Tapan Nayak). Background: Breakthrough Prize logo (Image: Breakthrough Prize Foundation).

Tiny Fibers, Big Impact: Fiber-Optic Sensing Helps Secure Fusion and Particle Collisions

Linqing Luo (EGD, left) and Matthew Reynolds (Engineering Division, right) install optical fiber to the shell of the superconductor used in the study. (Credit: Courtesy of Linqing Luo)

DESI Shakes up the Dark Universe

Nathalie Palanque-Delabrouille (Credit: APS TV)

New DESI Results Strengthen Hints That Dark Energy May Evolve

Alt text: A long-exposure image captures circular star trails above telescope domes illuminated in red light on a dark mountain. A golden glow on the horizon marks distant city lights. Caption: DESI maps distant objects to study dark energy. The instrument is installed on the Mayall Telescope, shown here beneath star trails.

DESI Opens Access to the Largest 3D Map of the Universe Yet

Caption: DESI observes the sky from the Mayall Telescope, shown here beneath the Milky Way. Credit: KPNO/NOIRLab/NSF/AURA/R.T. Sparks Alt text: A white structure with a domed top on a rocky outcrop below a star-filled night sky. The Milky Way stretches vertically in a luminous band. Faint green glow tints the curved horizon.

Berkeley Lab’s February 2025 High School STEM Day focuses on Lab-wide engineering efforts

As part of Berkeley Lab’s High School STEM Day event on February 12, Anjana Saravanan, a mechanical engineering associate working in the ATAP Division, shows students an assembled superconducting quadrupole magnet for the high-luminosity upgrade of the Large Hadron Collider at CERN. Credit: Photo by Robinson Kuntz, Berkeley Lab

Small But Mighty: TESSERACT Joins the Hunt for Dark Matter

Two people stand in a lab room with a rack of electronics and a metal frame suspending equipment. One person holds a small hexagonal detector.

Berkeley Lab’s Role in Unraveling the Universe’s Origins with ALICE

The ALICE Experiment at the LHC. Photo courtesy of Berkeley Lab IT

In Memoriam: Remembering Herbert Steiner

Herbert Steiner. Credit: UC Berkeley Physics Department

Connect

Our Organization