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Protons Hog the Momentum in Neutron-Rich Nuclei
New research could change our view of neutron stars and other systems with neutron-rich nuclei.
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DOE Isotope Program Announces Availability of Radionuclide Generators for...
Lead and bismuth systems are being produced to fill the nation’s need for short-lived, alpha-emitting isotopes.
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Antiquark Makes Positive Contribution to Proton Spin
Scientists shed new light on a proton's spin, refining our understanding of nuclear physics.
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Jetting into the Moments after the Big Bang
Upgraded capabilities ready to explore quarks and gluons ready at the Large Hadron Collider.
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Up and Down Quarks Favored Over Strange Ones
The proton's primary building blocks, up and down quarks, are produced more often than strange quarks in scattering experiments.
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Discovered: Tiny Drops of “Perfect” Fluid that Existed in the Early Universe
Particles colliding at nearly light speed reveal information about the true nature of matter.
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The Majorana Demonstrator: First Module of Germanium Detectors Comes Online
The Majorana experiment begins its search for neutrinoless double-beta decay.
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A Large-Area Detector for Fundamental Neutron Science
New scalable cost-effective ultracold neutron detector has many applications.
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Laser Detection of Actinides and Other Elements
New technique measures uranium, thorium, and palladium with efficiencies up to 500 times greater than current standard.
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A Nobel for Neutrinos: Sudbury Neutrino Observatory
Discovery of neutrino oscillations, which shows that neutrinos have mass, garners the 2015 Nobel Prize in Physics.
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A Nobel for Neutrinos: Super-Kamiokande
Discovery of neutrino oscillations, which shows that neutrinos have mass, garners the 2015 Nobel Prize in Physics.
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Probing Nuclear Reactions in Stars
Novel experiments measure unusual thermonuclear fusion of Hydrogen with a rare Oxygen Isotope.
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Project 8 Detects Individual Electrons by their Cyclotron Radiation
New electron spectroscopy technique may lead to an improved neutrino mass determination.
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One Photon or Two?
First mixed matter/anti-matter probe aims to solve decade-old proton puzzle.
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Reaping Radioisotopes
Researchers harvest long-lived isotopes that are difficult or impossible to acquire otherwise.
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Ripples Ruffle Primordial Plasma
RHIC physicists discover key evidence for a long-debated phenomenon in particle collisions.
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Major Gains in Ion Production for Radioactive Beams
Nuclear physics research with radioactive beams enhanced by high- efficiency charge-breeding techniques.
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What Is the Size of the Atomic Nucleus?
The neutron skin of the nucleus calcium-48 is much thinner than previously thought.
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Shape Matters in Nuclear Physics Collisions
Nuclear physicists colliding football- and sphere-shaped ions discover evidence supporting a paradigm shift in the birth of the quark-gluon plasma.
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First Measurement of the Force that Makes Antimatter Stick Together
Antiproton pairs generated in high-energy heavy-ion collisions interact with a strong attractive force.
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Nuclear Physics Accelerator Technology Yields New Process for Producing...
Using tools that enable nuclear physics research into the heart of matter, scientists created a material for applications from aerospace to solar panels.
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Don’t Touch: How Scientists Study the Reactions inside Stars
Indirect method let scientists determine stellar reaction rates, providing detailed information about the universe.
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DOE Isotope Program Provides Target Material for the Discovery of Superheavy...
New element 117 and its decay products establish the existence of long-sought Island of Stability.
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Zooming in on Gluons' Contribution to Proton Spin
New data that "wimpy" gluons, the glue-like particles that bind quarks within protons, have a big impact on proton spin.
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Confirmed: Heavy Barium Nuclei Prefer a Pear Shape
Cutting-edge experiment with a beam of radioactive barium ions provides direct evidence of nuclear pear-shape deformation.
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Jet Tomography of Hot Matter
Using fast particles to probe hot matter in nuclear collisions.
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Demonstrating Strong Electric Fields in Liquid Helium for Tests of...
Team’s approach enables a highly sensitive search for a neutron electric dipole moment, which provides insights into the nature of the universe.
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Improved Tests of the Weak Nuclear Force from Beta Decay
Studies of the neutrinos emitted in the radioactive decay of nuclei held in an ion trap allow sensitive searches for new interactions.
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Helium: When You Must be Sure it’s Ultra-Pure
A new method detects residual contaminants in ultra-pure helium gas, critical to nuclear physics experiments.
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Polarized Partners: Spinning Electrons Yield Spinning Positrons
Researchers demonstrate a new technique for producing polarized positrons that could improve manufacturing and lead to new discoveries.
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First Light Shines in Instrument Designed to Solve the Neutrino Controversy
KATRIN project achieves transmission of electrons through completed apparatus, opening new doors to understanding the universe.
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Chemistry for the Bottom of the Periodic Table
Techniques to investigate chemical properties of super heavy elements lead to improved methods for separating heavy metals.
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Rare Nickel Atom Has “Doubly Magic” Structure
Supercomputing calculations confirm that rare nickel-78 has unusual structure, offering insights into supernovas.
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Modeling the “Flicker” of Gluons in Subatomic Smashups
A new model identifies a high degree of fluctuations in the glue-like particles that bind quarks within protons as essential to explaining proton structure.
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Watching Neutrons Flow
Like water, neutrons seek their own level, and watching how they flow may teach us about how the chemical elements were made.
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Neutrons Play the Lead to Protons in Dance around “Double-Magic”...
Electric and magnetic properties of a radioactive atom provide unique insight into the nature of proton and neutron motion.
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The Roadmap to Quark Soup
Scientists discover new signposts in the quest to determine how matter from the early universe turned into the world we know today.
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When is a nucleus not a nucleus?
Scientists obtain new evidence for the existence of the extremely neutron-rich, very short-lived isotope of hydrogen 5H.
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Green Light for Cool Electrons
A new high-power green-light laser generates beam-cooling electrons at the Relativistic Heavy Ion Collider.
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How to Keep a Vital Diagnostic Isotope in Stock
Researchers succeed in producing larger quantities of a long-lived radioisotope that generates the needed isotope on demand.
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Physicists Move Closer to Listening In on Sub-Atomic Conversation
Calculations of a subatomic particle called the sigma provide insight into the communication between subatomic particles deep inside the heart of matter.
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Explorations of the Universal Glue
The newly upgraded CEBAF Accelerator opens door to strong force studies.
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OLYMPUS Experiment Sheds Light on Inner Workings of Protons
Seven-year study explains how packets of light are exchanged when protons meet electrons.
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Precise Radioactivity Measurements: A Controversy Settled
Simultaneous measurements of x-rays and gamma rays emitted in radioactive nuclear decays show that the vacancy left by an electron’s departure, not the atomic structure, influences whether gamma rays...
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Heavy Quarks Probe the Early Universe
New studies of behaviors of particles containing heavy quarks shed light into what the early universe looked like in its first microseconds.
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Tiny Tornados at the Dawn of the Universe
Swirling soup of matter’s fundamental building blocks spins ten billion trillion times faster than the most powerful tornado, setting new record for “vorticity.”
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Exotic Nucleus Exhibits Curious Shape
A new shape measurement of unstable 110Ru has found this nucleus to be similar to a squashed football.
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Neutron Star Mergers Create Heavy Elements
Gravitational wave observations combined with optical and gamma-ray data confirm earlier predictions, offer insights into how the galaxy produces lead, mercury, and other elements.
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Proton-Proton Fusion: Powering the Sun
Large-scale simulations of quarks promise precise view of reactions of astrophysical importance.
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