Feature Channels: Nuclear Physics

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Newswise: Nuclear Theorists Collaborate to Explore 'Heavy Flavor' Particles
Released: 7-Dec-2022 1:55 PM EST
Nuclear Theorists Collaborate to Explore 'Heavy Flavor' Particles
Brookhaven National Laboratory

Scientists at Brookhaven Lab will participate in a new Topical Theory Collaboration to explore the behavior of so-called 'heavy flavor' particles. These particles are made of quarks of the 'charm' and 'bottom' varieties. By understanding how these exotic particles form, evolve, and interact during powerful particle collisions, scientists will gain a deeper understanding of a unique form of matter that filled the early universe.

Newswise: Brookhaven Lab to Lead New 'Saturated Glue' Theory Collaboration
Released: 7-Dec-2022 1:50 PM EST
Brookhaven Lab to Lead New 'Saturated Glue' Theory Collaboration
Brookhaven National Laboratory

The U.S. Department of Energy (DOE) has announced funding for a new Topical Theory Collaboration to be led by DOE's Brookhaven National Laboratory that will aid in the discovery and exploration of a saturated state of gluons. These aptly named particles carry the nuclear strong force, acting as the 'glue' that holds together quarks, the building blocks of all visible matter.

Released: 7-Dec-2022 1:15 PM EST
Department of Energy Announces $11.24 Million for Research on Nuclear Theory Topical Collaborations
Department of Energy, Office of Science

Today, the U.S. Department of Energy (DOE) announced $11.24 million for five topical theory collaborations in nuclear physics (NP). These projects bring together leading nuclear theorists to collaboratively focus on solving challenging problems central to advancing knowledge in nuclear physics.

Newswise: Scientists Narrow the Anchor Point in a Quantum Chromodynamics Critical Point Search
Released: 6-Dec-2022 2:05 PM EST
Scientists Narrow the Anchor Point in a Quantum Chromodynamics Critical Point Search
Department of Energy, Office of Science

Heavy ion collisions using gold nuclei found a phase of nuclear matter with freely moving quarks and gluons, the Quark Gluon Plasma (QGP). Scientists are aiming to establish if a critical point exists in the phase diagram of nuclear matter, where the QGP would coexist with a gas of protons, neutrons, and other particles. Research at the Relativistic Heavy Ion Collider indicates that if this critical point exists, it is between energies of 3 and 20 giga-electron volts.

Newswise: Scientists Measure Calcium Nuclei’s Thin Skin
Released: 2-Dec-2022 7:05 AM EST
Scientists Measure Calcium Nuclei’s Thin Skin
Department of Energy, Office of Science

Scientists measuring the nucleus of calcium-48 to determine how its 20 protons and 28 neutrons are distributed inside its nucleus found that the protons and neutrons aren’t simply sprinkled throughout the nucleus. Instead, they form a neutron-rich “thin skin” around a core of evenly distributed protons and neutrons. This skin is thinner than many theoretical models predicted and not consistent with expectations based on recent observations of lead’s thick skin.

Newswise: Chicago Pile 1: A bold nuclear physics experiment with enduring impact
Released: 1-Dec-2022 5:20 PM EST
Chicago Pile 1: A bold nuclear physics experiment with enduring impact
Argonne National Laboratory

Enrico Fermi’s Chicago Pile 1 experiment in 1942 launched an atomic age, an unrivaled national laboratory system, fleets of submarines, cancer treatments and the unending promise of clean nuclear energy. Argonne National Laboratory builds on its legacy.

Released: 30-Nov-2022 12:15 PM EST
Nuclear popcorn: Heavy nucleus changes shapes at different energies
Argonne National Laboratory

A research collaboration between Argonne and the University of North Carolina at Chapel Hill produced a paper that examines how the nucleus of nickel-64 reacts when exposed to energy.

Newswise: For Protons and Neutrons, Things Aren’t the Same Inside Nuclei
Released: 25-Nov-2022 8:15 PM EST
For Protons and Neutrons, Things Aren’t the Same Inside Nuclei
Department of Energy, Office of Science

Quarks are distributed differently in free protons and neutrons versus those inside nuclei, something called “the EMC effect.” Scientists previously thought that the EMC effect treated the up and down quarks in protons and neutrons equally. New high-precision data from the MARATHON experiment indicates that the EMC effect may exert more influence on the distribution of down quarks compared to up quarks inside nuclei.

Newswise: Behind the science, ​“unsung heroes” make Argonne’s experiments possible
Released: 21-Nov-2022 11:05 AM EST
Behind the science, ​“unsung heroes” make Argonne’s experiments possible
Argonne National Laboratory

Argonne’s Experimental Operations and Facilities (EOF) division works to enable a broad range of experiments at the laboratory.

Newswise: Jefferson Lab Welcomes a ‘New’ Hall Group Leader
Released: 21-Nov-2022 10:00 AM EST
Jefferson Lab Welcomes a ‘New’ Hall Group Leader
Thomas Jefferson National Accelerator Facility

After an extensive international search, the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility has appointed Mark Jones as the new group leader of the lab’s Experimental Halls A and C. He began his tenure Nov. 1.

Released: 17-Nov-2022 1:20 PM EST
Department of Energy Announces $8.6 Million for Research on Accelerator R&D for Nuclear Physics
Department of Energy, Office of Science

Today, the U.S. Department of Energy (DOE) announced $8.6 million in funding for nine projects in accelerator research and development that will advance scientific discovery in nuclear physics research.

Newswise: Predicting Explosive Energy Bursts in Compact Fusion Power Plants
Released: 16-Nov-2022 2:20 PM EST
Predicting Explosive Energy Bursts in Compact Fusion Power Plants
Department of Energy, Office of Science

Edge localized modes (ELMs) associated with plasma instabilities in tokamak fusion reactors can damage reactor walls, a challenge in the design of future fusion power plants. Scientists have now discovered that internal resistance of the plasma can cause additional instabilities that drive ELMs in the National Spherical Torus Experiment. This will help researchers mitigate and control ELMs in spherical tokamaks.

Released: 16-Nov-2022 1:55 PM EST
Department of Energy Announces Early Career Research Program for FY 2023
Department of Energy, Office of Science

Today, the U.S. Department of Energy (DOE) announced it is accepting applications for the 2023 DOE Office of Science Early Career Research Program to support the research of outstanding scientists early in their careers. The program will support over 80 early career researchers for five years at U.S. academic institutions, DOE national laboratories, and Office of Science user facilities.

Newswise: FRIB Experiment Pushes Elements to the Limit
Released: 14-Nov-2022 2:05 PM EST
FRIB Experiment Pushes Elements to the Limit
Lawrence Berkeley National Laboratory

A new study led by the Department of Energy’s Berkeley Lab has measured how long it takes for several kinds of exotic nuclei to decay. The paper, published today in Physical Review Letters, marks the first experimental result from the Facility for Rare Isotope Beams.

Newswise: Observation of a self-generated current to self-confine fusion plasmas
Released: 8-Nov-2022 7:10 PM EST
Observation of a self-generated current to self-confine fusion plasmas
Seoul National University

Nuclear fusion has drawn more attention in the era of carbon neutrality because of no carbon dioxide production during power generation and no generation of high-level radioactive wastes.

Newswise:Video Embedded detecting-nuclear-threats-with-artificial-reasoning
VIDEO
Released: 3-Nov-2022 5:05 PM EDT
Detecting Nuclear Threats with Artificial Reasoning
Pacific Northwest National Laboratory

PNNL researchers use machine learning and data analytics to assist with detection of nuclear proliferation and nuclear material trafficking.

Released: 31-Oct-2022 9:00 AM EDT
Luisella Lari Joins Brookhaven Lab as Electron-Ion Collider Project Manager
Brookhaven National Laboratory

The U.S. Department of Energy’s Brookhaven National Laboratory has named Luisella Lari as Project Manager for the Electron-Ion Collider (EIC)—a one-of-a-kind nuclear physics research facility that will offer a closer look at the building blocks of matter—effective Oct. 3, 2022.

Newswise: How Do Neutrons Interact with Reactor Materials?
Released: 27-Oct-2022 3:40 PM EDT
How Do Neutrons Interact with Reactor Materials?
Department of Energy, Office of Science

Nuclear fission and fusion reactors use carbon and silicon in shielding, structural materials, fuel, and neutron moderators. Neutrons are the drivers of the nuclear energy production processes. This makes understanding how neutrons scatter from all reactor materials critical for nuclear plant design and other applications. In this research, scientists investigated the interaction of neutrons with silicon and carbon.

17-Oct-2022 7:00 AM EDT
Physicists Confirm Hitch in Proton Structure
Thomas Jefferson National Accelerator Facility

A new precision measurement of the proton’s electric polarizability performed at Jefferson Lab has confirmed an unexplained bump in the data. The proton’s electric polarizability shows how susceptible the proton is to deformation, or stretching, in an electric field. Like size or charge, the electric polarizability is a fundamental property of proton structure. The data bump was widely thought to be a fluke when seen in earlier measurements, so this new, more precise measurement confirms the presence of the anomaly and signals that an unknown facet of the strong force may be at work. The research has just been published in the journal Nature.

Released: 19-Oct-2022 10:05 AM EDT
Three Brookhaven Lab Physicists Named Fellows of American Physical Society
Brookhaven National Laboratory

Three physicist at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have been named Fellows of the American Physical Society (APS).

Newswise: New laboratory to explore the quantum mysteries of nuclear materials
Released: 18-Oct-2022 12:40 PM EDT
New laboratory to explore the quantum mysteries of nuclear materials
Idaho National Laboratory (INL)

Every day, researchers discover new details about the laws that govern the tiniest building blocks of the universe. These details not only increase scientific understanding of quantum physics, but they also hold the potential to unlock a host of technologies, from quantum computers to lasers to next-generation solar cells. But there’s one area that remains a mystery even in this most mysterious of sciences: the quantum mechanics of nuclear fuels.

Released: 13-Oct-2022 4:05 PM EDT
Machine Learning Takes Hold in Nuclear Physics
Thomas Jefferson National Accelerator Facility

Scientists have begun turning to new tools offered by machine learning to help save time and money. In the past several years, nuclear physics has seen a flurry of machine learning projects come online, with many papers published on the subject. Now, 18 authors from 11 institutions summarize this explosion of artificial intelligence-aided work in “Machine Learning in Nuclear Physics,” a paper recently published in Reviews of Modern Physics.

Newswise: Discovered Tetraneutron Resonance Confirms Theoretical Predictions
Released: 12-Oct-2022 12:05 PM EDT
Discovered Tetraneutron Resonance Confirms Theoretical Predictions
Department of Energy, Office of Science

In a new experiment, scientists have finally found the long-sought tetraneutron predicted using theory and supercomputer support at least six years ago. The tetraneutron is a combination of four neutrally charged neutrons. Unlike individual neutrons and combinations of two or three neutrons, the tetraneutron has a stable state—called a resonant state—that is long enough to be determined by the new experiment. The results are an important advance for nuclear physics and understanding of the strong nuclear force.

Newswise: JLab Welcomes New Experimental Hall Leader
Released: 10-Oct-2022 11:05 AM EDT
JLab Welcomes New Experimental Hall Leader
Thomas Jefferson National Accelerator Facility

The U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility has appointed Patrick Carsten Achenbach as the new leader of Jefferson Lab’s Experimental Hall B. The appointment comes after an international search.

Released: 4-Oct-2022 2:50 PM EDT
DOE Announces $400 Million in Research Funding to Advance Scientific Frontiers
Department of Energy, Office of Science

The U.S. Department of Energy (DOE) today announced an up to $400 million funding opportunity for basic research in support of DOE’s clean energy, economic, and national security goals. The funding will advance the priorities of DOE’s Office of Science and its major programs, including Advanced Scientific Computing Research, Basic Energy Sciences, Biological and Environmental Research, Fusion Energy Sciences, High Energy Physics, Nuclear Physics, Isotope R&D and Production, and Accelerator R&D and Production. This funding opportunity will help achieve the Biden Administration’s plan to employ science and innovation to tackle our greatest challenges.

Newswise: Near-Threshold Resonance Helps Explain a Controversial Measurement of Exotic Decay in Beryllium-11
Released: 28-Sep-2022 3:45 PM EDT
Near-Threshold Resonance Helps Explain a Controversial Measurement of Exotic Decay in Beryllium-11
Department of Energy, Office of Science

Physicists have observed a narrow proton-decaying resonance in beryllium-11. This result supports evidence that the beta-delayed proton decay of beryllium-11 is a sequential two-step process where a near-threshold resonance in beryllium-11 is populated first in a beta decay with a subsequent proton emission.

Released: 26-Sep-2022 10:05 AM EDT
BLIP Celebrates 50th Anniversary
Brookhaven National Laboratory

Fifty years ago, in 1972, the Brookhaven Linac Isotope Producer (BLIP) began operation. It was the world's first facility to use high-energy particle beams to produce radioisotopes that are rare, new, or commercially unavailable. Since then, BLIP's isotopes have been used for a variety of purposes -- chief among them, the diagnosis and treatment of disease.

Newswise: Unveiling the Existence of the Elusive Tetraneutron
Released: 23-Sep-2022 3:05 PM EDT
Unveiling the Existence of the Elusive Tetraneutron
Department of Energy, Office of Science

Nuclear physicists have experimentally confirmed the existence of the tetraneutron, a meta-stable nuclear system that can decay into four free neutrons. Researchers have predicted the tetraneutron’s existence since 2016. The new results, which agree with predictions from supercomputer simulations, will help scientists understand atomic nuclei, neutron stars, and other neutron-rich systems.

Newswise: Smashing Heavy Nuclei Reveals Proton Size
Released: 21-Sep-2022 3:55 PM EDT
Smashing Heavy Nuclei Reveals Proton Size
Department of Energy, Office of Science

Understanding how protons and neutrons are distributed in nuclei can reveal how large those nucleons appear when probed at high energy and contribute to understanding of their constituent quarks and gluons. This work used comparisons between model calculations and new precision data from collisions of heavy ions to access the distribution of gluons and predict the size of the proton. This knowledge can eliminate significant uncertainties about the initial state of the quark-gluon plasma created in heavy-ion collisions.

Newswise: Brookhaven's Brandenburg Named 2022 Blavatnik Regional Awards Finalist
Released: 21-Sep-2022 10:00 AM EDT
Brookhaven's Brandenburg Named 2022 Blavatnik Regional Awards Finalist
Brookhaven National Laboratory

James (Daniel) Brandenburg, a Goldhaber Distinguished Fellow uncovering clues about the makeup of visible matter at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, has been named a 2022 Blavatnik Regional Awards for Young Scientists finalist. The annual awards announced by the Blavatnik Family Foundation and the New York Academy of Sciences (NYAS) honor postdoctoral scientists from academic research institutions across New York, New Jersey, and Connecticut.

Released: 14-Sep-2022 1:25 PM EDT
ASTRO Applauds House Passage of Bipartisan Bill to Reduce Prior Authorization Burden and Treatment Delays
American Society for Radiation Oncology (ASTRO)

On behalf of the nation's radiation oncologists and the more than one million people with cancer they will treat this year, the American Society for Radiation Oncology (ASTRO) applauded today's House passage of bipartisan federal legislation that would rein in restrictive prior authorization practices that delay patient access to critical cancer treatments.

Newswise: Nuclear Cauldrons: Studying Star Burning with Radioactive and Neutron Beams
Released: 6-Sep-2022 3:05 PM EDT
Nuclear Cauldrons: Studying Star Burning with Radioactive and Neutron Beams
Department of Energy, Office of Science

Scientists have long theorized that carbon-12 could form in stars in the “Hoyle state,” an excited form of carbon-12, then decay through the fusing of three alpha particles to form ground state carbon and energy. Researchers have now tested the role of neutron upscattering in the fusing of the alpha particles. The results indicate that upscattering plays a less important role in the formation of carbon in stars than originally thought.

Released: 6-Sep-2022 10:05 AM EDT
Department of Energy Announces $35 Million for Scientific Discovery through Advanced Computing (SciDAC) Partnership in Nuclear Physics
Department of Energy, Office of Science

The U.S. Department of Energy (DOE) announced $35 million for three joint projects in Nuclear Physics (NP) and Advanced Scientific Computing Research (ASCR) via a partnership program of Scientific Discovery through Advanced Computing (SciDAC).

Newswise: Tracking Jets in Hot Quark Soup Reveals a Mechanism of ‘Quenching’
Released: 31-Aug-2022 1:35 PM EDT
Tracking Jets in Hot Quark Soup Reveals a Mechanism of ‘Quenching’
Department of Energy, Office of Science

Colliding atomic nuclei at very high energies “melts” the boundaries of individual protons and neutrons, setting quarks and gluons to form a quark-gluon plasma (QGP). Quarks or gluons in the colliding ions sometimes scatter off one another and then split, forming parallel sprays of particles called jets. Tracking how jets lose energy, called “quenching,” allows scientists to learn about the QGP and the nuclear strong force. New results find that some quarks lose energy even before they split to form a jet.

Newswise: Peering Into Mirror Nuclei, Physicists See Unexpected Pairings
29-Aug-2022 2:00 PM EDT
Peering Into Mirror Nuclei, Physicists See Unexpected Pairings
Lawrence Berkeley National Laboratory

Using a new technique, physicists studying energetic collisions in light nuclei found something surprising: protons collide with their fellow protons and neutrons with their fellow neutrons more often than expected. Understanding these collisions is important for interpreting data in a wide range of physics experiments studying elementary particles.

Newswise: Particles Pick Pair Partners Differently in Small Nuclei
28-Aug-2022 11:00 AM EDT
Particles Pick Pair Partners Differently in Small Nuclei
Thomas Jefferson National Accelerator Facility

The protons and neutrons that build the nucleus of the atom frequently pair up. Now, a new high-precision experiment conducted at Jefferson Lab has found that these particles may pick different partners depending on how packed the nucleus is. The data also reveal new details about short-distance interactions between protons and neutrons in nuclei and may impact results from experiments seeking to tease out further details of nuclear structure.

Released: 31-Aug-2022 9:25 AM EDT
Signs of Saturation Emerge from Particle Collisions at RHIC
Brookhaven National Laboratory

Nuclear physicists studying particle collisions at the Relativistic Heavy Ion Collider (RHIC) have new evidence that particles called gluons reach a steady "saturated" state inside the speeding ions.

Released: 30-Aug-2022 2:30 PM EDT
Argonne researchers win four 2022 R&D 100 awards
Argonne National Laboratory

R&D Magazine has recognized four Argonne projects with R&D 100 Awards.

Released: 11-Aug-2022 12:15 PM EDT
How Artificial Intelligence Could Lower Nuclear Energy Costs
Argonne National Laboratory

Argonne scientists are building artificial intelligence systems to streamline operations and maintenance at advanced nuclear reactors.

Released: 11-Aug-2022 9:35 AM EDT
Meet Cliff Brutus: Mechanical Engineer, Project Manager, and Life-Long Learner
Brookhaven National Laboratory

Jean Clifford (Cliff) Brutus, an engineer at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, has a cool job--literally. He’s developing components to keep particle beams circulating in the Lab's Relativistic Heavy Ion Collider (RHIC) cool.

Released: 28-Jul-2022 11:05 AM EDT
Simons Foundation Announces New Collaboration on Confinement and QCD Strings
Brookhaven National Laboratory

The Simons Foundation has announced a new research collaboration to explore the "glue" that holds the visible matter of the universe together. This team will delve into the details of quantum chromodynamics (QCD) -- the theory that describes the interactions among the most fundamental building blocks of visible matter.

Released: 25-Jul-2022 3:00 PM EDT
Milking Molecules From Microbes
King Abdullah University of Science & Technology (KAUST)

A sustainable chemical separation method that uses membranes, microalgae and artificial intelligence has been developed by a team drawn from different KAUST groups whose members have diverse specialties in bioengineering, membranes and water reuse and recycling.

Released: 25-Jul-2022 1:50 PM EDT
Department of Energy Announces $3.6 Million for Research Traineeships to Broaden and Diversify Nuclear Physics
Department of Energy, Office of Science

Today, the U.S. Department of Energy (DOE) awarded more than $3.6 million with a focus on broadening and diversifying the nuclear and particle physics research communities through research traineeships for undergraduates from Historically Black Colleges and Universities (HBCUs) and other Minority Serving Institutions (MSIs). The goal of this program is to increase the recruitment and retention of students from groups under-represented in nuclear physics and to create new partnerships with HBCUs and MSIs. Only by accessing the broadest possible pool of potential physicists can the community produce the best possible science.

Newswise: 'Shining' Light on the Inner Details and Breakup of Deuterons
Released: 22-Jul-2022 3:55 PM EDT
'Shining' Light on the Inner Details and Breakup of Deuterons
Department of Energy, Office of Science

Scientists have found a way to “see” inside deuterons, the simplest atomic nuclei, to better understand how particles called gluons are arranged within the deuteron. These collisions can also break the deuteron apart, giving insights into what holds the proton and neutron together. The research helps scientists understand how nuclei emerge from quarks and gluons, and how the masses of nuclei are dynamically generated by gluons.

Newswise: Postdoc Extracts Exotic Particle Properties
Released: 19-Jul-2022 9:30 AM EDT
Postdoc Extracts Exotic Particle Properties
Thomas Jefferson National Accelerator Facility

The 2022 JSA Postdoctoral Prize winner, Arkaitz Rodas, characterizes lesser-known particles to help physicists understand what holds matter together. Rodas will characterize light mesons using computational mathematical tools for his prize-winning project.

Newswise: Washington State Academy of Sciences Adds Six PNNL Researchers
Released: 18-Jul-2022 6:05 PM EDT
Washington State Academy of Sciences Adds Six PNNL Researchers
Pacific Northwest National Laboratory

The Washington State Academy of Sciences added six people from PNNL to its 2022 class of inductees.

Newswise: From Nuclei to Neutron Stars
Released: 12-Jul-2022 10:00 AM EDT
From Nuclei to Neutron Stars
Thomas Jefferson National Accelerator Facility

How big is an atomic nucleus? How does the size of a nucleus relate to a neutron star? These tantalizing questions in physics were explored in a pair of experiments at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility. Now, a 2021 doctoral dissertation describing those experiments has just earned Devi Lal Adhikari the prestigious annual Jefferson Science Associates (JSA) Thesis Prize.

Newswise: How Nuclear War Would Affect Earth Today
Released: 7-Jul-2022 1:25 PM EDT
How Nuclear War Would Affect Earth Today
Louisiana State University

Russia’s invasion of Ukraine has brought the threat of nuclear warfare to the forefront. But how would modern nuclear detonations impact the world today? A new study published today provides stark information on the global impact of nuclear war.

Released: 30-Jun-2022 2:05 PM EDT
RHIC/AGS Users' Meeting Emphasizes Diverse Workforce Opportunities
Brookhaven National Laboratory

Many of the nuclear physicists tuning in to the 2022 Relativistic Heavy Ion Collider (RHIC) & AGS (Alternating Gradient Synchrotron) Users' Meeting participated in a half-day workshop on June 8 dedicated to diversity, equity, and inclusion (DEI) and workforce development in the nuclear physics community.



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