A new study by MIT and others proves Einstein is right again. The most thorough test yet finds no Lorentz violation in high-energy neutrinos.
EPFL physicists have now demonstrated experimentally the ability to coherently manipulate the wave function of a free electron down to the attosecond timescale (10-18 of a second). The team also developed a theory for creating zeptosecond (10-21 of a second) electron pulses, which could also be used to increase the energy yield of nuclear reactions.
Researchers from Michigan State University and the RIKEN Nishina Center in Japan discovered eight new rare isotopes of the elements phosphorus, sulfur, chlorine, argon, potassium, scandium and, most importantly, calcium. These are the heaviest isotopes of these elements ever found.
Article describes measurement by PPPL spectrometer that contributed to W7-X world record fusion product for a stellarator.
Researchers at the University of Tokyo Institute of Industrial Science created a machine-learning-based tool that can predict where radioactive emissions from nuclear power plants will disperse. After training using extensive data on previous weather patterns, the tool consistently achieved over 85 percent predictive accuracy, and up to 95 percent in winter when large and predictable weather systems dominate. This tool can aid immediate evacuation in the aftermath of disasters like those at Fukushima and Chernobyl.
Could nuclear power make a significant contribution to decarbonizing the US energy system over the next three or four decades? That is the question asked by four current and former researchers from Carnegie Mellon University. Their answer: probably not.
Sizes and shapes of nuclei with more than 100 protons were so far experimentally inaccessible. Laser spectroscopy is an established technique in measuring fundamental properties of exotic atoms and their nuclei. For the first time, this technique was now extended to precisely measure the optical excitation of atomic levels in the atomic shell of three isotopes of the heavy element nobelium. This was reported by an international team lead by scientists from GSI Helmholtzzentrum für Schwerionenforschung.
Quark-gluon plasma is formed as a result of high energy collisions of heavy ions. After a collision, for a dozen or so yoctoseconds this most perfect of all known fluids undergoes rapid hydrodynamic expansion with velocities close to the velocity of light. Scientists, associated with the IFJ PAN and the GSI, has presented a new model describing these extreme flows. For the first time effects resulting from the fact that the particles creating the plasma carry spin, are taken into account.
A deep neural network running on an ordinary desktop computer is interpreting highly technical data related to national security as well as -- and sometimes better than -- today's best automated methods or even human experts. The research probes incredibly complex data sets filled with events called radioactive decays.
A group of physicists experimentally confirmed that molecular fingerprints of toxic, explosive, polluting and other dangerous substances could be reliably detected and identified by surface-enhanced Raman spectroscopy (SERS) using black silicon (b-Si) substrate.