Theory Offers a High-Resolution View of Quarks Inside Protons
New calculations predicting the spatial distributions of the charges, momentum, and other properties of the quarks within protons found that the up quarks are more symmetrically distributed and spread over a smaller distance within the proton than the down quark. The results imply that these two types of quarks contribute differently to a proton's properties.
Hundreds of PPPL students and scientists present findings at annual APS-DPP conference in Denver
More than 120 staff and 80 students and interns from the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) attended the American Physical Society's Division of Plasma Physics (APS-DPP) Conference from Oct 30 to Nov. 3 in Denver.
Innovative Study Unveils New Insights into Asymmetric Particle Collisions
High-energy heavy-ion collisions, while impossible to observe directly, provide invaluable insights into the universe's beginnings. Researchers analyze the final particles produced in these collisions to understand better the properties and mechanisms behind particle production.
Wits researchers pioneer a new way of searching for Dark Matter
Wits researchers pioneer a new way of searching for Dark Matter. Researchers explore whether Dark Matter particles actually are produced inside a jet of standard model particles.
New Way to Determine Arrow of Time
One of the annoying side effects of being absorbed in a gripping novel is that the cup of tea on the table becomes cold! Unfortunately, the tea would not heat itself by absorbing the heat around it, just as pieces of a broken egg would not put themselves together or milk mixed in coffee would not separate by itself.
When baby stars fledge
A team of astrophysicists led by Nuria Miret-Roig from the University of Vienna found that two methods for determining the age of stars measure different things: Isochronous measurement thereby determines the birth date of stars, while dynamical tracking provides information on when stars "leave their nest", about 5.5 million years later in the star clusters studied.
First experimental evidence of hopfions in crystals opens up new dimension for future technology
Hopfions, magnetic spin structures predicted decades ago, have become a hot and challenging research topic in recent years. In a study published in Nature today, the first experimental evidence is presented by a Swedish-German-Chinese research collaboration
Written in Blood
In Physics of Fluids, scientists demonstrate how bloodstains can yield valuable details by examining the protrusions that deviate from the boundaries of otherwise elliptical bloodstains. The researchers studied how these "tails" are formed using a series of high-speed experiments with human blood droplets less than a millimeter wide impacting horizontal surfaces at various angles. They found that the tail length can reflect information about the size, impact speed, and impact angle of the blood drop that formed the stain.
Physicists answer question of Supergalactic Plane's absent spiral galaxies
Astrophysicists say they have found an answer to why spiral galaxies like our own Milky Way are largely missing from a part of our Local Universe called the Supergalactic Plane.
Scientists Report Direct Observation of the Dead-Cone Effect in Quantum Chromodynamics
Particle collisions produce quarks and gluons that interact in structured ways. Scientists have for the first time directly observed a predicted "dead cone" in this structure. This finding helps to confirm a feature of the theory of strong interactions, which explains how quarks and gluons form protons and neutrons.
Acoustical Society of America Invites Media to Sydney Meeting, Dec. 4-8 #Acoustics23
The Acoustical Society of America and the Australian Acoustical Society are co-hosting Acoustics 2023 Sydney, Dec. 4-8. The scientific conference brings together acousticians, researchers, musicians, and more experts from around the world.
Scientists move closer to long-theorized ultraprecise nuclear clock
For decades, the standard reference tool for ultraprecise timekeeping has been the atomic clock. Scientists have known that an even more precise and reliable timepiece was possible, but technical limitations kept it only a theoretical prospect.Now, researchers from the U.S. Department of Energy's (DOE) Argonne National Laboratory, Texas A&M University and several European institutions are turning theory into practice.
From Farm to Newsroom: The Latest Research and Features on Agriculture
The world's total population is expected to reach 9.9 billion by 2050. This rapid increase in population is boosting the demand for agriculture to cater for the increased demand. Below are some of the latest research and features on agriculture and farming in the Agriculture channel on Newswise.
Webb Follows Neon Signs Toward New Thinking on Planet Formation
In 2008 NASA's Spitzer Space Telescope found a protoplanetary disk unlike any other. The dusty disk of gas surrounding the young Sun-like star SZ Chamaeleontis (SZ Cha) was being pummeled by extreme ultraviolet radiation - something previously seen only in computer models, never in the real universe. Planets in this system would have more time to form than in a disk being evaporated by X-rays, which is the norm. However, when the James Webb Space Telescope followed up on SZ Cha, it found nothing out of the ordinary - no abundance of ultraviolet radiation. In a short space of cosmic time, conditions in SZ Cha's disk had changed, leaving astronomers to untangle meaning from the mismatched data and its implications for the formation of other solar systems.
NYU Tandon takes a quantum leap with new minor
NYU Tandon School of Engineering is poised to become one of an extremely select group of American universities offering an undergraduate program in quantum technology, situating it at the forefront of a fast-growing field in which high employer demand significantly outpaces available talent.
Society of Rheology Announces Winner of 2023 Journal of Rheology Publication Award
AIP Publishing and the Journal of Rheology congratulate Norman J. Wagner, Julie B. Hipp, and Jeffrey J. Richards, winners of the 2023 Journal of Rheology Publication Award for their paper, "Direct measurements of the microstructural origin of shear-thinning in carbon black suspensions." The winning paper demonstrates how shearing forces impact the microstructure responsible for viscosity in suspensions containing carbon black, a material used in energy storage. The paper also provides a quantitative master curve which relates the material's properties to how it may behave under stress.
Putting Sound Waves to Work to Create Safer Public Spaces
Absorbing excess sound to make public environments like theaters and concert halls safer for hearing and using the unwanted sound waves to create electricity is the aim of a paper in Physics of Fluids.
Three Argonne scientists inducted as Fellows of American Physical Society
The American Physical Society welcomed three new Fellows from Argonne -- Dillon Fong, Katrin Heitmann and Ahren Jasper.
AAPM Appoints C. David Gammel, FASAE, CAE as New Executive Director
The American Association of Physicists in Medicine is pleased to announce C. David Gammel as its incoming Executive Director.
Tracking down quantum flickering of the vacuum
HZDR team proposes improvements for an experiment designed to explore the limits of physics
Smith College Earns Award From Physics and Astronomy SEA Change Program
Smith College Physics Department has earned a Bronze Award from the Physics and Astronomy SEA Change Committee for their work to create a more inclusive and diverse physics department.
2023 Joseph A. Johnson Award Goes to Yale University Professor of Physics
AIP and the National Society of Black Physicists congratulate Charles D. Brown II as the winner of the 2023 Joseph A. Johnson Award for Excellence. Dante O'Hara and Danielle Speller are also being recognized with Honorable Mentions. The Johnson Award recognizes early-career scientists who demonstrate scientific ingenuity and impactful mentorship and service - the core values of NSBP founder Joseph A. Johnson. The award and honorable mentions will be presented at the 2023 National Society of Black Physicists Annual Conference on Nov. 12, in Knoxville, Tennessee.
Physicists trap electrons in a 3D crystal for the first time
The results open the door to exploring superconductivity and other exotic electronic states in three-dimensional materials.
Argonne National Laboratory set to play pivotal role in realizing U.S. goals for nuclear science research
The Nuclear Science Advisory Committee recently unveiled its 2023 Long Range Plan for nuclear science. Argonne National Laboratory, with its world-class nuclear physics facilities and expertise, is poised to play a pivotal role in realizing the plan.
UC Irvine professor to help design the most powerful laser in the world
Irvine, Calif., Nov. 7, 2023 -- The National Science Foundation recently awarded an $18-million grant to a team of scientists to design the most powerful laser in the world. The team includes Franklin Dollar, an associate professor of physics & astronomy at the University of California, Irvine.