Jefferson Lab has appointed Tim Michalski as its new Engineering Division Manager, overseeing the division's 200 staff members supporting key projects. With extensive experience in engineering and management, Michalski aims to incorporate best practices from previous organizations to drive success.
Tisca Dorsey has joined the Thomas Jefferson National Accelerator Facility as Director of Business and Finance, bringing her expertise in government operations, contracting, and finance. She will lead the lab's contracting approach and strategy, supporting its growth and expansion.
The Vertical Test Area at Jefferson Lab achieved a record-breaking 470 superconducting radiofrequency accelerator cavity tests in 2022, driven by improvements made by operations engineer Justin Kent. This milestone demonstrates the facility's versatility and commitment to supporting cutting-edge research.
Gail Frayne has been appointed as the Chief Financial Officer of the Thomas Jefferson National Accelerator Facility, responsible for developing and implementing financial strategies. She brings extensive experience in contract requirements, governance, and risk management to her new role.
Hernandez-Garcia was recognized for his efforts to bring undergraduate students from Mexico to Jefferson Lab for a 10-week summer study program, where they gain hands-on experience with accelerator R&D test stands. The program has led to several students earning Ph.D.s in accelerator physics and pursuing careers in the field.
The US Department of Energy has awarded $35 million in grants to three joint projects between Nuclear Physics and Advanced Scientific Computing Research programs. These projects aim to optimize software tools for calculations of quantum chromodynamics, which describes the structure of protons and neutrons, using powerful supercomputers...
Mark Jones has been appointed as the new group leader of Jefferson Lab's Experimental Halls A and C. He aims to advance nuclear physics research by supporting vetted experiments and exploring new ideas. Jones brings deep experience in nuclear physics, equipment, and analysis, having worked at the lab since 1992.
Nuclear physicists have confirmed a bump in the data of proton structure measurements, revealing an unexplained spike in electric polarizability. The anomaly is puzzling experts, who believe it may indicate an unknown facet of the strong force at work.
Achenbach, a renowned experimental physicist, will lead Jefferson Lab's Experimental Hall B, utilizing the world's most powerful accelerator to advance nuclear physics research. He aims to upgrade CEBAF and explore new experiments, including positron beams, to expand knowledge on matter and the universe.
A high-precision experiment reveals that protons and neutrons in small nuclei prefer to pair up with others of the same kind more often than expected. The study provides new details about short-distance interactions between particles and may impact results from experiments seeking to tease out further nuclear structure details.
Researchers at Jefferson Lab have extracted the strength of the strong force, a quantity that supports theories accounting for 99% of ordinary mass. They found that strong force coupling grows quickly before leveling off and becoming constant with increasing distance between affected bodies.
A postdoctoral researcher uses computational tools to characterize light mesons, shedding light on the strong interaction and its role in binding quarks. The study aims to improve understanding of how matter stays together and bridge the gap between experimentalists and theorists.
Devi Lal Adhikari's thesis explores mathematical connections between atomic nuclei and neutron stars, shedding light on the structure of both. His research has garnered significant attention from astrophysicists and physicists alike.
Alexander Austregesilo, a staff scientist at Jefferson Lab, has been awarded a $2.5 million grant to study novel forms of nuclear matter within the spectrum of hadrons. He aims to develop new tools and resources to analyze large datasets generated by the GlueX experiment in search of exotic particles or hints of their existence.
Two graduate students from Virginia universities selected to receive support through the Office of Science Graduate Student Research program will conduct research at Jefferson Lab. The program provides world-class training and access to state-of-the-art facilities, aiming to prepare students for critical jobs in science and innovation.
The US Department of Energy's Thomas Jefferson National Accelerator Facility has established a new Research and Technology Partnerships Office to facilitate the commercialization of its scientific advancements. Led by Marla Schuchman, the office aims to support inventors in bringing their intellectual property to market.
The MARATHON experiment has accessed new details about the particles that build our universe by comparing mirror nuclei helium-3 and tritium. The results provided a precise determination of the ratio of proton/neutron structure function ratios, offering new insights into the internal structures of protons and neutrons.
The Virginia Innovative Traineeships in Accelerators (VITA) program is accepting students, providing a regional workforce development pipeline and increasing minority participation in STEM careers. Students will gain hands-on experience in particle accelerator technology, operations, and research and development.
Latifa Elouadrhiri received the 2021 Jesse W. Beams Research Award for her fundamental contributions to nuclear science. Her team made a groundbreaking measurement of proton pressure distribution, opening up new directions in particle physics research.
A team of nuclear physicists used electron studies to validate neutrino-nucleus interaction models, highlighting the need for updates to achieve accurate results in upcoming neutrino experiments. The study utilized an electron-scattering version of GENIE, a theoretical simulation used in neutrino research.
Two researchers at Jefferson Lab, Todd Satogata and Paul Reimer, have been selected as 2021 APS Fellows for their outstanding contributions to nuclear physics. They were recognized for their work on particle accelerator science and research on the structure of the proton.
Researchers at Jefferson Lab discovered a thinner neutron skin around calcium nuclei than expected, contrasting with lead measurements. This finding presents an opportunity for further exploration into the underlying reasons for this difference.
Andrew Jackura, a postdoctoral researcher, aims to study the three-body problem, which explains strong nuclear interactions among three particles. He will use lattice QCD to investigate this complex phenomenon and ultimately understand how it contributes to nuclear binding.
Weizhi Xiong's PhD thesis on PRad experiment helped advance the understanding of the proton by measuring its charge radius with precision. The results agreed more closely with the new muonic measurement, but the puzzle persists due to slight differences between electron scattering results.
The EIC Center at Jefferson Lab has awarded six new one-year fellowships to support early-career scientists working on the Electron-Ion Collider's research goals. The winners are pursuing R&D projects to enhance detector design, experimental design, and computing environment.
The MOLLER experiment has received new grants totaling $9 million to support its precision measurement of the electron's weak charge. The grants come from the National Science Foundation and Canadian Foundation for Innovation, with matching awards from Research Manitoba, enabling higher-statistics results.
Researchers made a precise measurement of the lead nucleus's neutron skin, revealing it's thicker than expected. This thickness has implications for the physical processes in neutron stars and their size.
Researchers observed several thousand protons in an experiment, but did not detect the tell-tale signs of color transparency. This suggests that the proton is more complicated than expected, with its predicted behavior occurring at higher energies than initially thought.
A new machine learning system can correctly diagnose particle accelerator component issues in near-real-time, providing operators with actionable information to mitigate problems. The system achieved accuracy rates of 85% for fault detection and 78% for fault type identification during its first two-week test.
The MOLLER experiment aims to precisely measure the electron's weak charge, providing a stringent test of the Standard Model. With a projected five times better precision than previous experiments, this measurement could uncover new physics at high masses.
Marcy Stutzman, a Jefferson Lab staff scientist, has been named a Fellow of the American Vacuum Society for her work on producing ultra-high vacuum environments. She contributes to the smooth operation of the lab's primary particle accelerator by ensuring high-quality equipment and maintaining a contamination-free environment.
Jefferson Science Associates has awarded ten graduate fellowships to doctoral students for the 2020-2021 academic year. The fellowships will support students' advanced studies and research at the Thomas Jefferson National Accelerator Facility.
Jefferson Lab has shipped the final new section of accelerator, called a cryomodule, for an upgrade of the Linac Coherent Light Source (LCLS) at SLAC National Accelerator Laboratory. The upgraded machine will accelerate electrons at superconducting temperatures to generate 1 million X-ray laser pulses per second.
The American Physical Society has selected five researchers affiliated with Jefferson Lab as its 2020 Fellows. The winners include two staff scientists and three others who have conducted or collaborated on research at the lab. Their work has furthered our understanding of the subatomic world.
The DOE has awarded $2.16 million to two physicists at Jefferson Lab for AI-assisted experiment control and calibration, as well as improved SRF operation at the CEBAF accelerator facility. These projects aim to optimize operations and generate better-quality data, potentially shaving off months of research labor.
Woss' doctoral thesis on spinning hadrons earned him the 2019 Jefferson Science Associates Thesis Prize. He used lattice QCD to calculate properties of unique particles that can decay into other hadrons with non-zero spin.
Bob May, Jefferson Lab ES&H Deputy Director, has been named a fellow of the Health Physics Society for his 40-year career in health physics. He is recognized for his significant contributions to radiation safety and administration within the field.
Cynthia Keppel, a leading US Department of Energy scientist, will receive $1 million to develop new detector technologies for nuclear physics research and cancer treatment. The collaboration aims to improve GEM detector systems with high spatial resolution.
Wenliang Li, a postdoctoral researcher at William & Mary, is studying proton structure from a new angle using Jefferson Lab's 12 GeV electron beam. He's examining particles that fly backward in the interaction to learn more about proton structure.
Dien Nguyen investigates nucleon interactions at short distances in both heavy and light nuclei during her fellowship. Her research will expand on previous findings, providing insights into neutron stars and the behavior of protons and neutrons inside atomic nuclei.
The EIC Center at Jefferson Lab has awarded six fellowships to early-career researchers working on advancing the science program of the Electron-Ion Collider. The fellowships provide $36,000 stipends and support R&D efforts towards realizing the potential of the collider.
Nobuo Sato has been awarded a five-year grant from the Department of Energy to develop the FemtoAnalyzer, a tool that will help nuclear physicists image the three-dimensional internal structure of protons and neutrons. The project aims to produce unprecedented resolution in understanding the building blocks of matter.
Physicists studied mirror nuclei helium-3 and tritium to measure their properties with high precision. The results showed that the data generally matched theoretical calculations well, but with some differences, indicating a need for further refinements in nuclear theory.
Researchers used novel method to access space between protons and neutrons, capturing snapshots of correlations to study nuclear matter. They found that leading theories on interactions describe the strong nuclear force at short distances, with a tensor interaction at close range and a scalar interaction at smaller scales.
The Department of Energy has announced plans for a future Electron Ion Collider, sited at Brookhaven National Laboratory in New York. Jefferson Lab will be a major partner in the project, providing key support and expertise in particle accelerators and nuclear physics.
Physicists have produced a new value for the proton's radius in an experiment conducted at Thomas Jefferson National Accelerator Facility, measuring 0.831 fm, smaller than previous results and in agreement with recent muonic atomic spectroscopy results. The new method used electron scattering and novel techniques to improve precision.
Ari Deibert Palczewski, a staff scientist at Jefferson Lab, has been awarded a DOE Early Career Research Program grant to develop a theoretical model of accelerator preparation. He aims to build on previous discoveries about doping niobium with nitrogen and create a mathematical model of the process.
Quark and gluon researcher Nobuo Sato aims to bridge the gap between theory and experiment to understand how these particles form hadrons, which make up protons, neutrons, and other atomic particles. His three-year fellowship will allow him to pursue independent research at Jefferson Lab.
Researchers Fay Hannon and Gianluigi Ciovati design low-energy, compact accelerators to clean wastewater. The technology has the potential to replace existing methods, which can be chemically and energetically intensive. The accelerators may also be used to treat tar sands, hydraulic fracturing fluids, and other industrial byproducts.
The Q-weak experiment successfully measured the weak charge of the proton by exploiting parity asymmetry in electron scattering off aluminum. Kurtis Bartlett's thesis work played a crucial role in minimizing signal contamination and achieving this milestone.