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Article ID: 709675

Sea Quark Surprise Reveals Deeper Complexity in Proton Spin Puzzle

Brookhaven National Laboratory

New data from the STAR experiment at the Relativistic Heavy Ion Collider (RHIC) add detail and complexity to an intriguing puzzle that scientists have been seeking to solve: how the building blocks that make up a proton contribute to its spin. The results reveal that different flavors of antiquarks contribute differently to spin--and in a way that's opposite to those flavors' relative abundance.

Released:
14-Mar-2019 4:30 PM EDT
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Article ID: 709500

Jefferson Lab Particle Accelerator Quality Testing Facility Is Going Stronger Than Ever After 5,000 Tests

Thomas Jefferson National Accelerator Facility

Throughout its nearly 30-year history, the VTA has contributed to the success of large-scale superconducting radiofrequency accelerators across the United States and around the world and continues to enable researchers to expand the frontiers of accelerator science and serve the needs of cutting-edge particle accelerator research facilities worldwide.

Released:
12-Mar-2019 12:00 PM EDT
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Article ID: 709486

Sussex scientists one step closer to a clock that could replace GPS and Galileo

University of Sussex

Scientists in the Emergent Photonics Lab (EPic Lab) at the University of Sussex have made a breakthrough to a crucial element of an atomic clock - devices which could reduce our reliance on satellite mapping in the future - using cutting-edge laser beam technology. Their development greatly improves the efficiency of the lancet (which in a traditional clock is responsible for counting), by 80% - something which scientists around the world have been racing to achieve.

Released:
12-Mar-2019 10:05 AM EDT
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  • Embargo expired:
    11-Mar-2019 12:00 PM EDT

Article ID: 709262

ORNL-led collaboration solves a beta-decay puzzle with advanced nuclear models

Oak Ridge National Laboratory

An international collaboration including scientists at the Department of Energy’s Oak Ridge National Laboratory solved a 50-year-old puzzle that explains why beta decays of atomic nuclei are slower than what is expected based on the beta decays of free neutrons. The findings, published in Nature Physics, fill a longstanding gap in physicists’ understanding of beta decay, an important process stars use to create heavier elements, and emphasize the need to include subtle effects—or more realistic physics—when predicting certain nuclear processes.

Released:
7-Mar-2019 11:00 AM EST
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Article ID: 709000

SURA Releases Jefferson Lab Economic Impact Study

Thomas Jefferson National Accelerator Facility

A new study commissioned by the Southeastern Universities Research Association on the local, state and nationwide impacts of the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility has found that the laboratory generated $556.9 million in output and provided labor income for 3,448 workers nationwide last year.

Released:
4-Mar-2019 9:00 AM EST
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Article ID: 708476

Do Alpha Particle Condensates Exist in Oxygen Nuclei?

Department of Energy, Office of Science

Yes. Such condensates, analogous to those in carbon-12, in heavier nuclei could change how we describe certain elements.

Released:
21-Feb-2019 2:45 PM EST
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Article ID: 708395

Transitions: Argonne’s Pioneering Study of Nuclear Energy Future

Argonne National Laboratory

Fully vested in advancing nuclear technology since its inception in 1946, the U.S. Department of Energy’s (DOE) Argonne National Laboratory helped complete detailed analyses of what potential transitions to a new nuclear energy future might look like.

Released:
20-Feb-2019 4:15 PM EST
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  • Embargo expired:
    20-Feb-2019 1:00 PM EST

Article ID: 708274

Correlated Nucleons May Solve 35-Year-Old Mystery

Thomas Jefferson National Accelerator Facility

A careful re-analysis of data taken at the Department of Energy's Thomas Jefferson National Accelerator Facility has revealed a possible link between correlated protons and neutrons in the nucleus and a 35-year-old mystery. The data have led to the extraction of a universal function that describes the EMC Effect, the once-shocking discovery that quarks inside nuclei have lower average momenta than predicted, and supports an explanation for the effect. The study has been published in the journal Nature.

Released:
19-Feb-2019 9:15 AM EST
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Article ID: 708243

Argonne expertise contributes to the foundation for future electron-ion collider

Argonne National Laboratory

Scientists from U.S. Department of Energy’s (DOE) national laboratories and a number of top U.S. research universities are proposing to build, within the next decade, an electron ion collider that will provide scientists with one of the best in-depth views of the interior of atomic nuclei.

Released:
18-Feb-2019 1:05 PM EST
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Article ID: 708053

World's Finest Gold Specimen Probed With Los Alamos Neutrons

Los Alamos National Laboratory

Using neutron characterization techniques a team of scientists have peered inside one of the most unique examples of wire gold, understanding for the first time the specimen's structure and possible formation process. The 263 gram, 12 centimeter tall specimen, known as the Ram's Horn, belongs to the collection of the Mineralogical and Geological Museum Harvard University (MGMH).

Released:
13-Feb-2019 1:05 PM EST

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