Andrea Signori's project, 'Unraveling Hadronization,' aims to improve fragmentation functions and make them more accurate. This will give physicists more confidence in detecting specific quarks in particles, leading to a better understanding of hadronization.
Jefferson Lab's CEBAF facility has confirmed the production of charm quarks in J/ψ particles following a recent upgrade to its operating energy. This achievement expands the realm of precision nuclear physics research with electron beams at higher energies.
Researchers developed a universal function that links short-range correlations between protons and neutrons in the nucleus to the EMC Effect, a phenomenon where quarks inside nuclei have lower average momenta than predicted. The study provides a possible explanation for the effect and offers a new perspective on the atom's nucleus.
Cynthia Keppel, a Jefferson Lab scientist, has been awarded the American Physical Society's 2019 Distinguished Lectureship Award on the Applications of Physics. She is recognized for her pioneering work in proton therapy and her ability to communicate complex physics concepts to non-expert audiences.
The Gluonic Excitations Experiment, or GlueX, has completed its first phase of data collection at the Thomas Jefferson National Accelerator Facility. The experiment aims to produce and study hybrid mesons, which can offer new insights into quark confinement and the strong force.
The OARtrac radiation treatment monitoring system has been awarded a 2018 R&D 100 Award for its innovative application of scintillating fiber material. The system, developed by RadiaDyne and Jefferson Lab, allows clinicians to monitor and adjust radiation delivery to patients.
Four Jefferson Lab-affiliated scientists have been elected as Fellow of the American Physical Society, a prestigious honor recognizing their significant contributions to nuclear physics. Cynthia Keppel's fellowship honors her broad impact in fundamental nuclear science and applications of nuclear technology.
The Jefferson Lab team received a DOE Award for its energy-efficient data center upgrade, which improved flexibility, reduced costs, and increased security and reliability. The lab achieved an average power use effectiveness level of 1.27 through the consolidation of space and implementation of advanced technologies.
Cristiano Fanelli uses artificial intelligence to optimize particle detectors and study exotic hybrid mesons. He aims to apply deep learning techniques for accurate particle identification, revolutionizing nuclear physics research.
A study at Thomas Jefferson National Accelerator Facility found that protons in neutron-rich nuclei have higher momentum than neutrons due to short-range correlations, which may impact neutron star dynamics. The research, published in Nature, confirms earlier hints and quantifies the effect for the first time.
The National Academies of Sciences, Engineering, and Medicine report concludes that an EIC is essential to answering fundamental questions about the building blocks of matter. The collider will enable unique scientific discoveries with implications for particle physics, astrophysics, and other fields.
Alessandro Baroni's thesis work using chiral effective field theory has characterized neutrino interactions with nuclei at low energy. His calculations combined theoretical framework and ab initio computational methods, leading to results in agreement with previous phenomenological calculations.
Young scientists Anne-Marie Valente-Feliciano, Anselm Vossen, and Raul Briceño receive grants to support their research on building better accelerators and studying subatomic particle interactions. They will utilize Jefferson Lab's upgraded accelerator and supercomputers to advance our understanding of particle physics.
Scientists at Jefferson Lab measured the pressure distribution inside a proton for the first time, revealing a pressure cooker environment. The results show that quarks are subjected to a high outward-directed pressure near the center of the proton.
The Q-weak experiment measures proton's weak charge with high precision, narrowing possibilities for new particles and forces beyond current knowledge. The result provides insight into predictions of hitherto unobserved heavy particles.
Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) successfully delivered beams to all four experimental halls for the first time. This milestone enables researchers to conduct more complex studies and maximize research output, potentially leading to breakthroughs in nuclear physics.
The Continuous Electron Beam Accelerator Facility (CEBAF) has completed a $338 million upgrade to triple its original energy design and is now ready to begin experiments. The accelerator will enable scientists to study the quark structure of matter with unprecedented precision.
Fulvia Pilat, a leading expert in accelerator physics, has been awarded the American Physical Society (APS) Fellowship. She made significant contributions to the commissioning of the Continuous Electron Beam Accelerator Facility and led efforts toward an electron-ion collider.
Researchers at Jefferson Lab lead development of next-generation software to benefit nuclear physics computation. The project aims to optimize calculations on future supercomputers, enabling better prediction and understanding of QCD at extreme temperatures and densities.
The 12 GeV Upgrade Project has tripled CEBAF's original operating energy, enabling precise imaging of nuclei and searches for exotic new particles. This upgrades allows researchers to explore the fundamental building blocks of matter at a scale previously inaccessible.
Two Jefferson Lab researchers, Ted Rogers and Justin Stevens, received $750,000 in funding to advance their research on protons and the strong nuclear force. Rogers aims to improve understanding of quark movement, while Stevens seeks to gain insight into hybrid mesons and QCD.
Priyashree Roy has been awarded the 2016 Jefferson Science Associates Thesis Prize for her experimental research on proton excited states. Her thesis work produced new information useful to researchers, including 10 previously measured polarization observables.
Raul Briceno receives Kenneth G. Wilson Award for his groundbreaking contributions to lattice field theory, enabling research on nuclear matter resonances using lattice Quantum Chromodynamics.
Nobuo Sato received a $10,000 grant to apply his knowledge of Quantum Chromodynamics to understand the protons and neutrons in everyday matter. His calculations involve parton distribution functions and transverse momentum distributions.
Two scientists, Charles Perdrisat and Charles Sinclair, are jointly awarded the JSA Outstanding Nuclear Physicist Prize for their groundbreaking contributions to nuclear physics research. Their innovative techniques have significantly advanced our understanding of nucleon structure through pioneering measurements.
The first result from Jefferson Lab's upgraded CEBAF demonstrates the feasibility of detecting a potential new form of matter, studying quark structure, and exploring universal glue. The experiment produced two ordinary mesons and studied their production mechanisms.
The CEBAF accelerator has successfully delivered upgrade-energy electron beams into two of its experimental areas, Halls B and C. The upgrades mark progress toward the final DOE approval step for project completion.
Elena Long's research aims to study the structure of nuclei by exploring how six quarks give rise to a binding force. She plans to use a new target made of deuterated ammonia to apply strong magnetic fields and measure polarization, gaining insight into matter's underlying structure.
The SciPhi-XVI supercomputer, delivered to Jefferson Lab in mid-August, has been ranked as one of the world's fastest supercomputers, achieving 425.8 Teraflops with its 264 nodes. The cluster is powered by Intel Xeon Phi chips and will be used for LQCD calculations and analyzing experimental physics data.
Or Hen received the 2015 Jefferson Science Associates Thesis Prize for his thesis on high-momentum nucleons in nuclei. He researched short-range correlations among nucleons, aiming to understand their impact on nuclear structure and related systems.
Hugh E. Montgomery, Jefferson Lab director and president of Jefferson Science Associates, LLC, has been recognized for his outstanding leadership and distinguished research in high-energy physics. The Institute of Physics awards the Glazebrook Medal annually to individuals who display exceptional contributions to the physics community.
Researchers have developed a new device that enables existing breast cancer imagers to provide up to six times better contrast of tumors in the breast while maintaining the same or better image quality. The Variable Angle Slant Hole Collimator reduces radiation dose to patients by half, potentially improving imaging of other organs.
Using the Continuous Electron Beam Accelerator Facility (CEBAF), researchers have demonstrated a method to produce polarized positrons from spinning electrons. This technique could enable new research in advanced materials and offer a new avenue for producing polarized positron beams for proposed experiments. The team successfully tran...
A researcher at Jefferson Lab has been awarded a $500K grant to develop new techniques for improving the efficiency of superconducting niobium cavities, which are used in particle accelerators. The goal is to reduce power consumption and increase the performance of these critical components.
A novel system uses thin slivers of diamond to measure electron beam polarization with unprecedented accuracy. The diamond-based detector provides direct and accurate measurements, overcoming previous uncertainties caused by laser beam distortions.
The Jefferson Lab accelerator has successfully delivered full-energy electrons as part of its commissioning activities for the 12 GeV Upgrade project. This achievement enables scientists to probe deeper into the nucleus of atoms and study the fundamental building blocks of matter.
The US Nuclear Science Advisory Committee has released a new long-range plan for nuclear physics research, prioritizing investments in particle accelerators and neutrino studies. The plan recommends focusing on existing facilities like Jefferson Lab's 12 GeV Upgrade to unlock new scientific opportunities.
Researchers have found that protons and neutrons in heavy nuclei have higher-average momentum when paired, contrary to previous theories. This phenomenon has implications for ultra-cold atomic gas systems and neutron stars.
The CEBAF accelerator has achieved its highest-energy beam ever, delivering 10.5 GeV electrons to the Hall D Tagger Facility. This milestone completes two major commissioning steps needed for approval to start experimental operations following its first major upgrade.
The CEBAF accelerator successfully delivered its first data of the 12 GeV era, achieving 6.11 GeV electrons at 2 nanoAmps average current for over an hour. The milestone marks a major step in the commissioning process and demonstrates the ability to deliver high-energy beams beyond the original operational energy.
Physicists at Jefferson Lab have made a new determination of an intrinsic quark property, setting new limits for energies needed to access physics beyond the Standard Model. The experiment probed mirror symmetry in quarks, revealing a previously isolated component of the weak force.
Scientists have made the first experimental determination of the proton's weak charge, combining new data with published results. The result provides a rigorous test of the Standard Model and constraints on potential new physics at the Large Hadron Collider.
Scientists use AwakeSPECT to study Alzheimer's, dementia, and Parkinson's disease by acquiring functional images of conscious mouse brains. The system, developed at Jefferson Lab, tracks movement and removes motion artifacts, providing detailed brain chemistry changes.
Researchers have found that adding boron-nitride nanotubes to cancer cells can increase the effectiveness of a minimally invasive treatment for soft tissue tumors. The treatment, known as Irreversible Electroporation, has been shown to kill twice as many cancer cells when BNNTs are present on the cell surface.
Researchers at Jefferson Lab have combined data from six experiments to reveal a correlation between the EMC Effect and short-range correlations in bound neutrons. The findings suggest that there is a common cause for both effects, potentially linked to nucleon behavior.
Researchers at NASA's Langley Research Center and the Department of Energy's Thomas Jefferson National Accelerator Facility developed a new technique to synthesize high-quality boron-nitride nanotubes, opening doors for various applications. The first practical macroscopic yarns were created using lasers, with potential uses in radiati...
A recent experiment found that a proton's nearest neighbors in the nucleus may modify its internal structure, contradicting the mass-dependence picture. The study also revealed a possible new cause: the microscopic structure of nuclei, particularly in beryllium.
The first US-built superconducting radiofrequency niobium cavity to meet the ILC's stringent performance goals has been successfully tested at Jefferson Lab. The cavity, manufactured by Advanced Energy Systems, exceeded the specification of 35 MV/m with an accelerating gradient of 41 megavolts per meter.
A new calculation resolves the NuTeV Anomaly by applying theoretical models of the EMC Effect, revealing a fundamental modification in proton and neutron structure within the nucleus. The result provides crucial evidence for physics beyond the Standard Model.
The U.S. Department of Energy's Thomas Jefferson National Accelerator Facility has awarded three contracts for a $310 million upgrade project, which will provide a cutting-edge facility for studying the building blocks of matter. The contracts are worth $1.5 million and $3.3 million, respectively, for construction and materials require...