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Category: Nuclear Science

Tracking Down Three-Particle Components in the Nucleus

Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF) Hall A. (Credit: Jefferson Lab)

The Accelerator Behind the Scenes of Essential Tech

A cyclotron operator controls the beam for experiments from the 88-Inch Cyclotron control room. Credit: Marilyn Sargent/Berkeley Lab Alt text: A person adjusts a setting at a console with multiple panels of knobs, switches, and screens.

2025 Physical Sciences Area Strategic Plan

2025 Strategic Plan cover image close-up

STAR Data Reveal 'Splash' of the Quark-Gluon Plasma

An artistic representation of a liquidlike fireball of "quark-gluon plasma" (QGP) created in a collision of two gold ions at the Relativistic Heavy Ion Collider (RHIC). This collision has also produced a correlated spray of particles (a "jet") back-to-back with a photon (wavy purple line). Scientists from RHIC's STAR Collaboration showed that interactions of the jet particles cause the QGP to splash sideways, like the wake behind a power boat, enabling them to measure properties of the plasma. (Valerie A. Lentz/Brookhaven National Laboratory)

Berkeley Lab develops gamma spectroscopy optimization code for international nuclear safeguards

Optimal cluster labels found by LBNL’s spectre-ml software for a uranium measurement. The optimal measurement uses only cluster label #2. Courtesy of the Nuclear Science Division

Complex analyses, uncertainty quantification, and machine learning

Architecture of the RESuM model and overview of connections with different neutrino projects. Courtesy of the Nuclear Science Division

Building a Data Pipeline to Accelerate Discovery

images of the GRETA instrument and a high performance computing facility

Making Science: Inside Lawrence Berkeley National Lab

Aerial view of Berkeley Lab's Machine Shop floor. Credit: Make Magazine

Harnessing Artificial Intelligence for High-Impact Science

An artistic rendition of a data center where the components of a supercomputer are housed. (Credit: jamesteohart, Shutterstock) – ALT: A dark corridor with faint lights glowing from devices on the walls leads to an open doorway glowing bright white.

GRETA Dedication: Celebrating a Decade of GRETINA Science

GRETA Project Director Paul Fallon and Berkeley Lab's Deputy Director for Research Carol Burns stand in between GRETA's detector hemispheres to conduct the "ribbon cutting" ceremony while several key people involved in the inception, delivery, and future use of GRETA join the celebration. On the left side of the photo (from left to right) are Sergio Zimmermann (former project manager for GRETA from Berkeley Lab’s Engineering Division, now retired), Thomas Glasmacher (FRIB Laboratory Director), Marie-Agnes Deleplanque (a former Berkeley Lab senior staff scientist and Nuclear Structure Group lead, now retired), and Natalie Roe, Berkeley Lab's Associate Director for the Physical Sciences. On the right side (from left to right) are I-Yang Lee (a former senior staff scientist in the Nuclear Structure Group, now retired), GRETA Deputy Project Director Heather Crawford, and Nuclear Science Division Director Reiner Kruecken. Credit: Robinson Kuntz, Berkeley Lab

3Q4: Hannah Parrilla and Autism Acceptance Month

Hannah Parrilla, 3Q4 banner image

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.

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