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Physics

Finding a new particle is always a nice surprise, but measuring its characteristics is another story and just as important. Less than a year after announcing the discovery of the particle going by the snappy name of Ξcc++ (Xicc++), this week the LHCb collaboration announced the first measurement of its lifetime. The announcement was made during the CHARM 2018 international workshop in Novosibirsk in Russia: a charming moment for this doubly charmed particle. [...]
Fri, May 25, 2018
Source: Physorg Physics Category: PHYSICS
A team of researchers, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has demonstrated the possibility to induce and control a magnetic response in a nonmagnetic layer material though selective excitation of specific vibration of the material. [...]
Fri, May 25, 2018
Source: Physorg Physics Category: PHYSICS
EPFL has developed tiny fibers made of elastomer that can incorporate materials like electrodes and nanocomposite polymers. The fibers can detect even the slightest pressure and strain, and can withstand deformation of close to 500 percent before recovering their initial shape, all of which makes them perfect for applications in smart clothing and prostheses, and for creating artificial nerves for robots. [...]
Fri, May 25, 2018
Source: Physorg Physics Category: PHYSICS
From the data collected by the LHCb detector at the Large Hadron Collider, it appears that the particles known as charm mesons and their antimatter counterparts are not produced in perfectly equal proportions. Physicists from Cracow have proposed their own explanation of this phenomenon and presented related predictions about consequences that are particularly interesting for high-energy neutrino astronomy. [...]
Fri, May 25, 2018
Source: Physorg Physics Category: PHYSICS
Computer simulations are used to understand the properties of soft matter—such as liquids, polymers and biomolecules like DNA -which are too complicated to be described by equations. They are often too expensive to simulate in full, given the intensive computational power required. Instead, a helpful strategy is to couple an accurate model—applied in the areas of the system that require greater attention—with a simpler, idealised model. [...]
Thu, May 24, 2018
Source: Physorg Physics Category: PHYSICS
Carbon composites have many useful properties, with new potential uses being discovered all the time. Researchers have developed a thin sheet variety to exploit its electromagnetic properties for microwave shielding. [...]
Thu, May 24, 2018
Source: Physorg Physics Category: PHYSICS
A small team of physicists that includes Jessie Shelton of the University of Illinois and David Curtin of the University of Toronto has written a paper and presented it at this year's American Physical Society meeting outlining a possible way to detect particles emitted from the Large Hadron Collider. Their idea involves constructing a new building near the LHC to house a suite of long-lived particle detectors. [...]
Thu, May 24, 2018
Source: Physorg Physics Category: PHYSICS
Based on complex simulations of quantum chromodynamics performed using the K computer, one of the most powerful computers in the world, the HAL QCD Collaboration, made up of scientists from the RIKEN Nishina Center for Accelerator-based Science and the RIKEN Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS) program, together with colleagues from a number of universities, have predicted a new type of "dibaryon"—a particle that contains six quarks instead of the usual three. Studying how these elements form could help scientists understand the interactions among elementary particles in extreme environments such as the interiors of neutron stars or the early universe moments after the Big Bang. [...]
Thu, May 24, 2018
Source: Physorg Physics Category: PHYSICS
Chip development is complicated by the increasing temperatures in modern electronic devices based on semiconductor materials. Therefore, the development of spin wave integrated circuits (ICs) that can perform information processing by manipulating spin, rather than heat-producing electron movements, has been gaining attention. Within this field, spin waves transmitted through a magnetic insulator film demonstrate low energy loss and enable long-distance transmission. On the other hand, in order to transmit spin waves within a magnetic insulator film, it was previously necessary to attach relatively large permanent magnets to the magnetic insulator film, which was a problem for realizing spin wave ICs. [...]
Thu, May 24, 2018
Source: Physorg Physics Category: PHYSICS
Laser pulse compression technology invented in the late 1980s resulted in high-power, short-pulse laser techniques, enhancing laser intensity 10 million-fold in a quarter of a century. [...]
Thu, May 24, 2018
Source: Physorg Physics Category: PHYSICS
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