DOE News
    Doe Science news source
    The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
    • 2019-03-14 16:30:14
    • Article ID: 709675

    Sea Quark Surprise Reveals Deeper Complexity in Proton Spin Puzzle

    New results from STAR experiment show antiquarks' contribution to proton spin depends on "flavor"--and in a way that's opposite to those flavors' relative abundance

    • Credit: Courtesy: Brookhaven National Laboratory

      The proton spin puzzle: Scientists want to know how different constituents of the proton contribute to its spin, a fundamental property that plays a role in how these building blocks give rise to nearly all visible matter in the universe. Pieces of the puzzle include the orbital angular momentum of quarks and gluons (top left), gluon spin (top right) and quark and antiquark spin (bottom). The latest data from RHIC reveal that the antiquarks' contribution is more complex than previously thought.

    • Credit: Left image: Courtesy: T. Sakuma. Right image: Courtesy: Brookhaven National Laboratory

      This model (left) of the STAR detector (photo) shows the main detector components used in this result. Electrons from W- boson decays (or positrons from W+ decays) are tracked inside a magnetic field using the Time-Projection Chamber (TPC). The magnetic field causes negative and positive particles to curve in opposite ways, allowing scientists to identify which is which. The Barrel Electromagnetic Calorimeter (BEMC) measures the energy of particles emerging from collisions perpendicular from the colliding beams, while the Electromagnetic Endcap Calorimeter (EEMC) does the same for particles emerging in the forward direction. This image shows a simulated electron track (red) pointing to a large localized energy deposition in the BEMC (also red). (Courtesy: T. Sakuma)

    • Credit: Courtesy: Brookhaven National Laboratory

      Collisions of polarized protons (beam entering from left) and unpolarized protons (right) result in the production of W bosons (in this case, W-). RHIC's detectors identify the particles emitted as the W bosons decay (in this case, electrons, e-) and the angles at which they emerge. The colored arrows represent different possible directions, which probe how different quark flavors—e.g., an "up" antiquark (u) and a "down" quark (d)—contribute to the proton spin.

    UPTON, NY—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, just published as a rapid communication in the journal Physical Review D, reveal definitively for the first time that different “flavors” of antiquarks contribute differently to the proton’s overall spin—and in a way that’s opposite to those flavors’ relative abundance.

    “This measurement shows that the quark piece of the proton spin puzzle is made of several pieces,” said James Drachenberg, a deputy spokesperson for STAR from Abilene Christian University. “It’s not a boring puzzle; it’s not evenly divided. There’s a more complicated picture and this result is giving us the first glimpse of what that picture looks like.”

    It’s not the first time that scientists’ view of proton spin has changed. There was a full-blown spin “crisis” in the 1980s when an experiment at the European Center for Nuclear Research (CERN) revealed that the sum of quark and antiquark spins within a proton could account for, at best, a quarter of the overall spin. RHIC, a U.S. Department of Energy Office of Science user facility for nuclear physics research at Brookhaven National Laboratory, was built in part so scientists could measure the contributions of other components, including antiquarks and gluons (which “glue” together, or bind, the quarks and antiquarks to form particles such as protons and neutrons).

    Antiquarks have only a fleeting existence. They form as quark-antiquark pairs when gluons split.

    “We call these pairs the quark sea,” Drachenberg said. “At any given instant, you have quarks, gluons, and a sea of quark-antiquark pairs that contribute in some way to the description of the proton. We understand the role these sea quarks play in some respects, but not in respect to spin.”

    Exploring flavor in the sea

    One key consideration is whether different “flavors” of sea quarks contribute to spin differently.

    Quarks come in six flavors—the up and down varieties that make up the protons and neutrons of ordinary visible matter, and four other more exotic species. Splitting gluons can produce up quark/antiquark pairs, down quark/antiquark pairs—and sometimes even more exotic quark/antiquark pairs.

    “There is no reason why a gluon would prefer to split into one or the other of these flavors,” said Ernst Sichtermann, a STAR collaborator from DOE’s Lawrence Berkeley National Laboratory (LBNL) who played a lead role in the sea quark research. “We’d expect equal numbers [of up and down pairs], but that’s not what we are seeing.” Measurements at CERN and DOE’s Fermi National Accelerator Laboratory have consistently found more down antiquarks than up antiquarks.

    “Because there is this surprise—an asymmetry in the abundance of these two flavors—we thought there might also be a surprise in their role in spin,” Drachenberg said. Indeed, earlier results from RHIC indicated there might be a difference in how the two flavors contribute to spin, encouraging the STAR team to do more experiments.

    Why study proton spin?

    Spin is a fundamental property of particles, as essential to a particle’s identity as its electric charge. Because particles have spin, they can act like tiny magnets with a particular polarity. Aligning and flipping the polarity of proton spin is the basis for technologies like magnetic resonance imaging (MRI). But scientists are still striving to understand how the inner building blocks of protons—the quarks and gluons and sea of quark-antiquark pairs, as well as their motion within the proton—build up the overall particle’s spin. Understanding how proton spin arises from its inner building blocks may help scientists understand how the complex interactions within the proton give rise to its overall structure, and in turn to the nuclear structure of the atoms that make up nearly all visible matter in our universe—everything from stars to planets to people.

    Delivering on spin goals

    This result represents the accumulation of data from the 20-year RHIC spin program. It is the final result from one of the two initial pillars motivating the spin program at the dawn of RHIC.

    For all of these experiments, STAR analyzed the results of polarized proton collisions at RHIC—collisions where the overall spin direction of RHIC’s two beams of protons was aligned in particular ways. Looking for differences in the number of certain particles produced when the spin direction of one polarized proton beam is flipped can be used to track the spin alignment of various constituents—and therefore their contributions to overall proton spin.

    For the sea quark measurements, STAR physicists counted electrons and positrons—antimatter versions of electrons that are the same in every way except that they carry a positive rather than a negative electric charge. The electrons and positrons come from the decay of particles called W bosons, which also come in negative and positive varieties, depending on whether they contain an up or down antiquark. The difference in the number of electrons produced when the colliding proton’s spin direction is flipped indicates a difference in W- production and serves as a stand in for measuring the spin alignment of the up antiquarks. Similarly, the difference in positrons comes from a difference in W+ production and serves the stand-in role for measuring the spin contribution of down antiquarks.

    New detector, added precision

    The latest data include signals captured by STAR’s endcap calorimeter, which picks up particles traveling close to the beamline forward and rearward from each collision. With this new data added to data from particles emerging perpendicular to the collision zone the scientists have narrowed the uncertainty in their results. The data show definitively, for the first time, that the spins of up antiquarks make a greater contribution to overall proton spin than the spins of down antiquarks.

    “This ‘flavor asymmetry,’ as scientists call it, is surprising in itself, but even more so considering there are more down antiquarks than up antiquarks,” said Qinghua Xu of Shandong University, another lead scientist who supervised one of the graduate students whose analysis was essential to the paper. 

    As Sichtermann noted, “If you go back to the original proton spin puzzle, where we learned that the sum of the quark and antiquark spins accounts for just a fraction of proton spin, the next questions are what is the gluon contribution? What is the contribution from the orbital motion of the quarks and gluons? But also, why is the quark contribution so small? Is it because of a cancellation between quark and antiquark spin contributions? Or is it because of differences between different quark flavors?

    “Previous RHIC results have shown that gluons play a significant role in proton spin. This new analysis gives a clear indication that the sea also plays a significant role. It is far more complicated than just gluons splitting into any flavor you like—and a very good reason to look deeper into the sea.”

    Bernd Surrow, a physicist from Temple University who helped develop the W boson method and supervised two of the graduate students whose analyses led to the new publication, agrees. “After multiple years of experimental work at RHIC, this exciting new result provides a substantially deeper understanding of the quantum fluctuations of quarks and gluons inside the proton. These are the kinds of fundamental questions that attract young minds—the students who will continue to expand the limits of our knowledge.”

    Additional STAR measurements might offer insight into the spin contributions of exotic quark/antiquark pairs. In addition, U.S. scientists hope to delve deeper into the spin mystery at a proposed future Electron-Ion Collider. This particle accelerator would use electrons to directly probe the spin structure of the internal components of a proton—and should ultimately solve the proton spin puzzle.

    Research at RHIC is funded primarily by the DOE Office of Science (NP). The STAR endcap calorimeter used for the forward and rearward measurements included in this analysis was funded in large part by the National Science Foundation. It was built at Indiana University under the leadership of STAR collaborator Will Jacobs.

    Graduate students Jinlong Zhang of Shandong University (subsequently a postdoctoral fellow at LBNL and now at Stony Brook University), Devika Gunarathne of Temple University, and Amani Kraishan of Temple University (now at Al-Hussein Bin Talal University in Jordan) analyzed the data resulting in this publication.

    Brookhaven National Laboratory is supported by the Office of Science of the U.S. Department of Energy. The Office of Science is the single largest supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov.

    Follow @BrookhavenLab on Twitter or find us on Facebook.

    • other-fb
    • other-tw
    X
    X
    X
    • Filters

    • × Clear Filters
    A New Collider Concept Would Take Quantum Theories to an Extreme

    A New Collider Concept Would Take Quantum Theories to an Extreme

    A new idea for smashing beams of elementary particles into one another could reveal how light and matter interact under extreme conditions that may exist on the surfaces of exotic astrophysical objects, in powerful cosmic light bursts and star explosions, in next-generation particle colliders and in hot, dense fusion plasma.

    Unexpected observation of ice at low temperature, high pressure questions ice, water theory

    Unexpected observation of ice at low temperature, high pressure questions ice, water theory

    Scientists at Oak Ridge National Laboratory studying super-cold states of water discovered a pathway to the unexpected formation of dense, crystalline phases of ice thought to exist beyond Earth's limits. Their findings, reported in Nature, challenge accepted theories and could lead to better understanding of ice found on other planets, moons and elsewhere in space.

    New Argonne Battery Design Offers ​"Solid" Advantage

    New Argonne Battery Design Offers ​"Solid" Advantage

    In a new study from the U.S. Department of Energy's (DOE) Argonne National Laboratory, researchers have identified a new boundary layer that emerges between a lithium metal anode and a lithium transition metal oxide (LLZO) electrolyte, potentially leading to improved battery stability.

    Laser Focus Shines Light on How Nanoparticles Form

    Laser Focus Shines Light on How Nanoparticles Form

    Titan supercomputer tells origin story of nanoparticle size distributions with large-scale simulations.

    In a first, researchers identify reddish coloring in an ancient fossil - a 3-million-year-old mouse

    In a first, researchers identify reddish coloring in an ancient fossil - a 3-million-year-old mouse

    Researchers have for the first time detected chemical traces of red pigment in an ancient fossil - an exceptionally well-preserved mouse, not unlike today's field mice, that roamed the fields of what is now the German village of Willershausen around 3 million years ago.

    Improving Isotope Supply for a Cancer-Fighting Drug

    Improving Isotope Supply for a Cancer-Fighting Drug

    Production of actinium-227 ramps up for use in a drug to fight prostate cancer that has spread to bone.

    Extracting Signs of the Elusive Neutrino

    Extracting Signs of the Elusive Neutrino

    Scientists use software to "develop" images that trace neutrinos' interactions in a bath of cold liquid argon.

    Machine learning speeds modeling of experiments aimed at capturing fusion energy on Earth to rapidly predict behavior of plasma that fuels fusion reactions

    Machine learning speeds modeling of experiments aimed at capturing fusion energy on Earth to rapidly predict behavior of plasma that fuels fusion reactions

    Release describes application of machine learning form of artificial intelligence to predict the behavior of fusion plasma.

    Record-shattering underwater sound

    Record-shattering underwater sound

    A team of researchers has produced a record-shattering underwater sound with an intensity that eclipses that of a rocket launch. The intensity was equivalent to directing the electrical power of an entire city onto a single square meter, resulting in sound pressures above 270 decibels.

    CosmoGAN: Training a Neural Network to Study Dark Matter

    CosmoGAN: Training a Neural Network to Study Dark Matter

    A Berkeley Lab-led research group is using a deep learning method known as generative adversarial networks to enhance the use of gravitational lensing in the study of dark matter.


    • Filters

    • × Clear Filters
    Ames Laboratory names James Morris Chief Research Officer

    Ames Laboratory names James Morris Chief Research Officer

    Dr. James Morris has been named Chief Research Officer at the Department of Energy's (DOE) Ames Laboratory. His appointment follows an extensive search and will be effective June 17, 2019.

    Four scientists at PPPL awarded national and international honors

    Four scientists at PPPL awarded national and international honors

    Feature profiles four PPPL scientists who have received high honors.

    Brookhaven's Mircea Cotlet Named a Battelle "Inventor of the Year"

    Brookhaven's Mircea Cotlet Named a Battelle "Inventor of the Year"

    The global science and technology organization Battelle recognized materials scientist Mircea Cotlet of Brookhaven Lab's Center for Functional Nanomaterials for his research in applying self-assembly methods to control the interfaces between nanomaterials and other light-interacting components.

    Berkeley Lab Project to Pinpoint Methane 'Super Emitters'

    Berkeley Lab Project to Pinpoint Methane 'Super Emitters'

    Methane, a potent greenhouse gas that traps about 30 times more heat than carbon dioxide, is commonly released from rice fields, dairies, landfills, and oil and gas facilities - all of which are plentiful in California. Now Berkeley Lab has been awarded $6 million by the state to find "super emitters" of methane in an effort to quantify and potentially mitigate methane emissions.

    Cryogenics equipment maker licenses ORNL auto-fill method for more efficient liquid helium use

    Cryogenics equipment maker licenses ORNL auto-fill method for more efficient liquid helium use

    Advanced Research Systems has licensed an ORNL technology designed to automatically refill liquid helium used in laboratory equipment for low-temperature scientific experiments, which will reduce downtime, recover more helium and increase overall efficiency.

    New Argonne coating could have big implications for lithium batteries

    New Argonne coating could have big implications for lithium batteries

    In a new discovery, scientists at the U.S. Department of Energy's (DOE) Argonne National Laboratory have developed a new cathode coating by using an oxidative chemical vapor deposition technique. The new coating can keep the battery's cathode electrically and ionically conductive and ensures that the battery stays safe after many cycles.

    Argonne's Chain Reaction Innovations appoints first advisory council

    Argonne's Chain Reaction Innovations appoints first advisory council

    World-class energy leaders will offer their expertise to Chain Reaction Innovations (CRI), the entrepreneurship program at the U.S. Department of Energy's Argonne National Laboratory, as part of a new Advisory Council announced today. CRI has named 14 Advisory Council members, including investors, industry experts and business executives, to help guide its growth and strategy.

    ORNL, Lincoln Electric to Advance Large-Scale Metal Additive Manufacturing Technology

    ORNL, Lincoln Electric to Advance Large-Scale Metal Additive Manufacturing Technology

    The new agreement builds upon ORNL and Lincoln Electric's previous developments by extending additive technology to new materials, leveraging data analytics and enabling rapid manufacture of metal components in excess of 100 pounds per hour.

    Students from Minnesota and Massachusetts Win DOE's 29th National Science Bowl(r)

    Students from Wayzata High School in Plymouth, Minnesota, won the 2019 U.S. Department of Energy (DOE) National Science Bowl(r) (NSB) today in Washington, D.C. In the middle school competition, students from Jonas Clarke Middle School in Lexington, Massachusetts, took home first place.

    Five new innovators join Chain Reaction Innovations in third cohort

    Five new innovators join Chain Reaction Innovations in third cohort

    Five new innovators will be joining Chain Reaction Innovations (CRI), the entrepreneurship program at the U.S. Department of Energy's (DOE's) Argonne National Laboratory, as part of the elite program's third cohort. Announced on Monday, April 22, these innovators were selected following an extensive national solicitation process and two-part pitch competition, with reviews from industry experts, investors, scientists and engineers.


    • Filters

    • × Clear Filters
    Laser Focus Shines Light on How Nanoparticles Form

    Laser Focus Shines Light on How Nanoparticles Form

    Titan supercomputer tells origin story of nanoparticle size distributions with large-scale simulations.

    Improving Isotope Supply for a Cancer-Fighting Drug

    Improving Isotope Supply for a Cancer-Fighting Drug

    Production of actinium-227 ramps up for use in a drug to fight prostate cancer that has spread to bone.

    Extracting Signs of the Elusive Neutrino

    Extracting Signs of the Elusive Neutrino

    Scientists use software to "develop" images that trace neutrinos' interactions in a bath of cold liquid argon.

    Slow Charge Generation Plays Big Role in Model Material for Solar Cells

    Slow Charge Generation Plays Big Role in Model Material for Solar Cells

    Insight about energy flow in copper-based material could aid in creating efficient molecular electronics.

    Capturing Energy Flow in a Plasma by Measuring Scattered Light

    Capturing Energy Flow in a Plasma by Measuring Scattered Light

    First measurements of heat flux in plasmas experientially sheds light on models relying on classical thermal transport.

    Artificial Intelligence and Deep Learning Accelerate Efforts to Develop Clean, Virtually Limitless Fusion Energy

    Artificial Intelligence and Deep Learning Accelerate Efforts to Develop Clean, Virtually Limitless Fusion Energy

    The Fusion Recurrent Neural Network reliably forecasts disruptive and destructive events in tokamaks.

    Spin Flipper Upends Protons

    Spin Flipper Upends Protons

    The spin direction of protons was reversed, for the first time, using a nine-magnet device, potentially helping tease out details about protons that affect medical imaging and more.

    Splitting Water Fast! Catalyst Works Faster than Mother Nature

    Splitting Water Fast! Catalyst Works Faster than Mother Nature

    Design principles lead to a catalyst that splits water in a low pH environment, vital for generating solar fuels.

    Sea Quark Spin Surprise!

    Sea Quark Spin Surprise!

    Antiquark spin contribution to proton spin depends on flavor, which could help unlock secrets about the nuclear structure of atoms that make up nearly all visible matter in our universe.

    The Weak Side of the Proton

    The Weak Side of the Proton

    A precision measurement of the proton's weak charge narrows the search for new physics.


    Spotlight

    ILSAMP Symposium showcases benefits for diverse students, STEM pipeline
    Monday May 20, 2019, 12:05 PM

    ILSAMP Symposium showcases benefits for diverse students, STEM pipeline

    Argonne National Laboratory

    Integrating Scientific Computing into Science Curricula
    Monday May 13, 2019, 11:05 AM

    Integrating Scientific Computing into Science Curricula

    Brookhaven National Laboratory

    Students from Minnesota and Massachusetts Win DOE's 29th National Science Bowl(r)
    Monday April 29, 2019, 02:05 PM

    Students from Minnesota and Massachusetts Win DOE's 29th National Science Bowl(r)

    Department of Energy, Office of Science

    DOE's Science Graduate Student Research Program Selects 70 Students to Pursue Research at DOE Laboratories
    Friday April 12, 2019, 03:05 PM

    DOE's Science Graduate Student Research Program Selects 70 Students to Pursue Research at DOE Laboratories

    Department of Energy, Office of Science

    Young Women's Conference in STEM seeks to change the statistics one girl at a time
    Thursday March 28, 2019, 03:05 PM

    Young Women's Conference in STEM seeks to change the statistics one girl at a time

    Princeton Plasma Physics Laboratory

    Students team with Argonne scientists and engineers to learn about STEM careers
    Tuesday March 12, 2019, 05:05 PM

    Students team with Argonne scientists and engineers to learn about STEM careers

    Argonne National Laboratory

    Lynbrook High wins 2019 SLAC Regional Science Bowl competition
    Wednesday February 13, 2019, 02:05 PM

    Lynbrook High wins 2019 SLAC Regional Science Bowl competition

    SLAC National Accelerator Laboratory

    Equipping the next generation for a technological revolution
    Thursday January 24, 2019, 01:05 PM

    Equipping the next generation for a technological revolution

    Argonne National Laboratory

    Chemistry intern inspired by Argonne's real-world science
    Friday January 18, 2019, 05:05 PM

    Chemistry intern inspired by Argonne's real-world science

    Argonne National Laboratory

    Chasing a supernova
    Friday January 18, 2019, 04:05 PM

    Chasing a supernova

    Argonne National Laboratory

    Argonne intern streamlines the beamline
    Tuesday January 08, 2019, 02:05 PM

    Argonne intern streamlines the beamline

    Argonne National Laboratory

    Research on Light-Matter Interaction Could Lead to Improved Electronic and Optoelectronic Devices
    Thursday October 11, 2018, 04:00 PM

    Research on Light-Matter Interaction Could Lead to Improved Electronic and Optoelectronic Devices

    Rensselaer Polytechnic Institute (RPI)

    Innovating Our Energy Future
    Wednesday October 03, 2018, 07:05 PM

    Innovating Our Energy Future

    Oregon State University, College of Engineering

    Physics graduate student takes her thesis research to a Department of Energy national lab
    Tuesday October 02, 2018, 03:05 PM

    Physics graduate student takes her thesis research to a Department of Energy national lab

    University of Alabama at Birmingham

    Friday September 21, 2018, 01:05 PM

    "Model" students enjoy Argonne campus life

    Argonne National Laboratory

    Writing Code for a More Skilled and Diverse STEM Workforce
    Thursday September 06, 2018, 01:05 PM

    Writing Code for a More Skilled and Diverse STEM Workforce

    Brookhaven National Laboratory

    New graduate student summer school launches at Princeton Plasma Physics Laboratory
    Tuesday September 04, 2018, 11:30 AM

    New graduate student summer school launches at Princeton Plasma Physics Laboratory

    Princeton Plasma Physics Laboratory

    The Gridlock State
    Friday August 31, 2018, 06:05 PM

    The Gridlock State

    California State University (CSU) Chancellor's Office

    Meet Jasmine Hatcher and Trishelle Copeland-Johnson
    Friday August 31, 2018, 02:05 PM

    Meet Jasmine Hatcher and Trishelle Copeland-Johnson

    Brookhaven National Laboratory

    Argonne hosts Modeling, Experimentation and Validation Summer School
    Friday August 24, 2018, 11:05 AM

    Argonne hosts Modeling, Experimentation and Validation Summer School

    Argonne National Laboratory

    Students affected by Hurricane Maria bring their research to SLAC
    Wednesday August 22, 2018, 01:05 PM

    Students affected by Hurricane Maria bring their research to SLAC

    SLAC National Accelerator Laboratory

    Brookhaven Lab Pays Tribute to 2018 Summer Interns
    Wednesday August 22, 2018, 10:05 AM

    Brookhaven Lab Pays Tribute to 2018 Summer Interns

    Brookhaven National Laboratory

    Changing How Buildings Are Made
    Monday August 20, 2018, 12:05 PM

    Changing How Buildings Are Made

    Washington University in St. Louis

    CSUMB Selected to Host Architecture at Zero Competition in 2019
    Thursday August 16, 2018, 12:05 PM

    CSUMB Selected to Host Architecture at Zero Competition in 2019

    California State University, Monterey Bay

    Department of Energy Invests $64 Million in Advanced Nuclear Technology
    Friday July 20, 2018, 03:00 PM

    Department of Energy Invests $64 Million in Advanced Nuclear Technology

    Rensselaer Polytechnic Institute (RPI)

    Professor Miao Yu Named the Priti and Mukesh Chatter '82 Career Development Professor
    Thursday July 19, 2018, 05:00 PM

    Professor Miao Yu Named the Priti and Mukesh Chatter '82 Career Development Professor

    Rensselaer Polytechnic Institute (RPI)

    2018 RHIC & AGS Annual Users' Meeting: 'Illuminating the QCD Landscape'
    Tuesday July 03, 2018, 11:05 AM

    2018 RHIC & AGS Annual Users' Meeting: 'Illuminating the QCD Landscape'

    Brookhaven National Laboratory

    Argonne welcomes <em>The Martian</em> author Andy Weir
    Friday June 29, 2018, 06:05 PM

    Argonne welcomes The Martian author Andy Weir

    Argonne National Laboratory

    Creating STEM Knowledge and Innovations to Solve Global Issues Like Water, Food, and Energy
    Monday June 18, 2018, 09:55 AM

    Creating STEM Knowledge and Innovations to Solve Global Issues Like Water, Food, and Energy

    Illinois Mathematics and Science Academy (IMSA)

    Professor Emily Liu Receives $1.8 Million DoE Award for Solar Power Systems Research
    Friday June 15, 2018, 10:00 AM

    Professor Emily Liu Receives $1.8 Million DoE Award for Solar Power Systems Research

    Rensselaer Polytechnic Institute (RPI)

    Celebrating 40 years of empowerment in science
    Thursday June 07, 2018, 03:05 PM

    Celebrating 40 years of empowerment in science

    Argonne National Laboratory

    Introducing Graduate Students Across the Globe to Photon Science
    Monday May 07, 2018, 10:30 AM

    Introducing Graduate Students Across the Globe to Photon Science

    Brookhaven National Laboratory

    Students from Massachusetts and Washington Win DOE's 28th National Science Bowl(r)
    Wednesday May 02, 2018, 04:05 PM

    Students from Massachusetts and Washington Win DOE's 28th National Science Bowl(r)

    Department of Energy, Office of Science

    The Race for Young Scientific Minds
    Thursday April 12, 2018, 07:05 PM

    The Race for Young Scientific Minds

    Argonne National Laboratory

    Q&A: Al Ashley Reflects on His Efforts to Diversify SLAC and Beyond
    Wednesday March 14, 2018, 02:05 PM

    Q&A: Al Ashley Reflects on His Efforts to Diversify SLAC and Beyond

    SLAC National Accelerator Laboratory

    Insights on Innovation in Energy, Humanitarian Aid Highlight UVA Darden's Net Impact Week
    Thursday February 15, 2018, 12:05 PM

    Insights on Innovation in Energy, Humanitarian Aid Highlight UVA Darden's Net Impact Week

    University of Virginia Darden School of Business

    Ivy League Graduate, Writer and Activist with Dyslexia Visits CSUCI to Reframe the Concept of Learning Disabilities
    Friday February 09, 2018, 11:05 AM

    Ivy League Graduate, Writer and Activist with Dyslexia Visits CSUCI to Reframe the Concept of Learning Disabilities

    California State University, Channel Islands

    Photographer Adam Nadel Selected as Fermilab's New Artist-in-Residence for 2018
    Wednesday January 17, 2018, 12:05 PM

    Photographer Adam Nadel Selected as Fermilab's New Artist-in-Residence for 2018

    Fermi National Accelerator Laboratory (Fermilab)

    Fermilab Computing Partners with Argonne, Local Schools for Hour of Code
    Wednesday January 17, 2018, 12:05 PM

    Fermilab Computing Partners with Argonne, Local Schools for Hour of Code

    Fermi National Accelerator Laboratory (Fermilab)

    Q&A: Sam Webb Teaches X-Ray Science from a Remote Classroom
    Wednesday December 20, 2017, 01:05 PM

    Q&A: Sam Webb Teaches X-Ray Science from a Remote Classroom

    SLAC National Accelerator Laboratory

    The Future of Today's Electric Power Systems
    Monday December 18, 2017, 01:05 PM

    The Future of Today's Electric Power Systems

    Rensselaer Polytechnic Institute (RPI)

    Supporting the Development of Offshore Wind Power Plants
    Monday December 18, 2017, 12:05 PM

    Supporting the Development of Offshore Wind Power Plants

    Rensselaer Polytechnic Institute (RPI)

    Stairway to Science
    Tuesday October 03, 2017, 01:05 PM

    Stairway to Science

    Argonne National Laboratory

    After-School Energy Rush
    Thursday September 28, 2017, 12:05 PM

    After-School Energy Rush

    Argonne National Laboratory

    Bringing Diversity Into Computational Science Through Student Outreach
    Thursday September 28, 2017, 10:05 AM

    Bringing Diversity Into Computational Science Through Student Outreach

    Brookhaven National Laboratory

    From Science to Finance: SLAC Summer Interns Forge New Paths in STEM
    Thursday September 21, 2017, 03:05 PM

    From Science to Finance: SLAC Summer Interns Forge New Paths in STEM

    SLAC National Accelerator Laboratory





    Showing results

    0-4 Of 2215