NP Highlights

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May 22, 2019
Two-dimensional images of a neutrino interaction in MicroBooNE shown at different stages of signal processing reveal cleaner and cleaner signals.
Extracting Signs of the Elusive Neutrino
Scientists use software to "develop" images that trace neutrinos' interactions in a bath of cold liquid argon.
April 18, 2019
Spin Flipper Upends Protons
The spin of high-energy proton beams is strongly coupled to their orbit direction: a one-degree orbit deflection will also rotate the spin of a 255
April 18, 2019
Sea Quark Spin Surprise!
Since the 1980s, scientists have known that quark and antiquark spins within a proton account for, at best, a quarter of the overall proton spin.
April 17, 2019
The Weak Side of the Proton
The weak force’s effects can be observed in our everyday world: it initiates the chain of reactions that power the sun, and it provides a
April 15, 2019
Fast-Moving Pairs May Solve 35-Year-Old Mystery
The European Muon Collaboration discovered the EMC Effect in data taken at CERN. The collaboration found that quarks inside a nucleus appeared
April 12, 2019
Quarks Under Pressure in the Proton
Inside every proton in every atom in the universe is a pressure cooker environment that surpasses the atom-crushing heart of a neutron star. That
April 12, 2019
Magnetic Levitation of Ultracold Neutrons Yields New Measurement of the Neutron Lifetime
To measure the neutron lifetime, the experiment used ultracold neutrons from the Los Alamos National Laboratory ultracold neutron source, currently
February 21, 2019
Supplying High-Quality Cancer-Imaging Isotopes
Ideal for cancer tumor imaging, zirconium-89 lasts long enough in the body to find tumors and be imaged using positron emission tomography (PET)
February 21, 2019
Do Alpha Particle Condensates Exist in Oxygen Nuclei?
The identification and the study of states analogous to the Hoyle state in heavier nuclei can provide a test for the existence of alpha condensates
January 30, 2019
MicroBooNE, Machine Learning, and Liquid Argon
Researchers on the MicroBooNE neutrino experiment at Fermilab designed a type of machine learning algorithm, convolutional neural networks, to
December 18, 2018
Clarifying Rates of Methylmercury Production
Mercury is a toxic element that occurs naturally and as an anthropogenic pollutant in the environment. The neurotoxin monomethylmercury (MMHg) is a
September 6, 2018
Heavy Particles Get Caught Up in the Flow
Particle collisions at RHIC free quarks and gluons from their confinement within ordinary particles (e.g., protons and neutrons) so
September 4, 2018
Small, Short-Lived Drops of Early Universe Matter
In semi-overlapping gold-gold collisions at RHIC, more particles emerge from the “equator” than perpendicular to the collision
September 4, 2018
Modular Fluidic System Developed to Supply Radioisotope Used in Targeted Alpha Therapy
Astatine-211 is produced by alpha beam irradiation of bismuth target material. The University of Washington has one of only a few cyclotrons in the
August 29, 2018
Thorium: A Source of Multiple Medical Isotopes
Radium is a bone-seeking radioelement, due to its chemical similarity to calcium, the main component of hydroxyapatite, the bone mineral. Radium is
August 6, 2018
Quantum Computing of an Atomic Nucleus
Quantum computers promise to solve “exponentially hard” problems, such as computing the structure of molecules, atoms, or atomic nuclei
June 20, 2018
Is Nature Exclusively Left Handed? Using Chilled Atoms to Find Out
Using the TRIUMF Neutral Atom Trap (TRINAT) facility, a collaboration from Texas A&M University, TRIUMF (Canada's national particle accelerator
June 18, 2018
New Tech Uses Isomeric Beams to Study How and Where the Galaxy Makes One of Its Most Common Elements
Satellites equipped with gamma-ray telescopes have proven to be powerful tools for finding evidence that elements are continually being produced in
June 1, 2018
Scientists Studying Nuclear Spin Make a Surprising Discovery
When RHIC physicists first collided spin-aligned protons with much larger gold nuclei in 2015, they expected to see neutrons emerging along the
May 16, 2018
Perfecting the Noise-Canceling Neutrino Detector
Perfecting the Noise-Canceling Neutrino Detector
The primary component of the MicroBooNE detector is the TPC—a large, rectangular structure that includes a set of wire planes and readout
May 1, 2018
MURR Becomes First Reactor Facility to Join DOE’s Isotope Program
MURR Becomes First Reactor Facility to Join DOE’s Isotope Program
The trace element selenium is part of the 21st naturally occurring amino acid in the genetic code and a micronutrient of interest in the life
May 1, 2018
Tracking Down Helium-4’s Quarks and Gluons
Tracking Down Helium-4’s Quarks and Gluons
The researchers’ new measurements provided the first beam-spin asymmetry data on exclusive DVCS from helium-4 using a highly polarized
February 27, 2018
CUORE Constrains Neutrino Properties
CUORE Constrains Neutrino Properties
Many questions about the fundamental nature of neutrinos remain open, including whether or not a neutrino is its own antiparticle. If so,
December 19, 2017
Proton-Proton Fusion: Powering the Sun
Proton-Proton Fusion: Powering the Sun
The Nuclear Physics with Lattice Quantum Chromodynamics Collaboration (NPLQCD), under the umbrella of the U.S. Quantum Chromodynamics Collaboration
December 19, 2017
Neutron Star Mergers Create Heavy Elements
Neutron Star Mergers Create Heavy Elements
GW170817 was the first gravitational wave detection involving objects with masses typical of neutron stars. Gamma-rays from it were observed by the