English
Arabic
Chinese (Simplified)
Dutch
Esperanto
French
German
Greek
Italian
Japanese
Korean
Portuguese
Russian
Spanish
UrduAn important part of physics research is examining why theoretical calculations and experimental results sometimes don’t match. A recent physics experiment on the helium-4 nucleus and how it transitions from its basic energy state to its first excited state found evidence of a disagreement between theory and experiment. Now new calculations of the observed transition found agreement with the recent experimental results.
Tag: experimental physics
Ab Initio Methods Help Scientists Make Sense of Complex Particle Collisions
New research finds that ab initio methods using effective field theory can be used to study the scattering of protons and neutrons off atomic nuclei. The research specifically examined the scattering of protons from carbon-12 and oxygen-16 at low energies.
First-Ever Atomic Freeze-Frame of Liquid Water
Scientists stop the motion of atoms to watch electrons move in liquid water.
Rice scientists pull off quantum coup
Rice University scientists have discovered a first-of-its-kind material, a 3D crystalline metal in which quantum correlations and the geometry of the crystal structure combine to frustrate the movement of electrons and lock them in place.
Quantum scientists accurately measure power levels one trillion times lower than usual
Scientists in Finland have developed a nanodevice that can measure the absolute power of microwave radiation down to the femtowatt level at ultra-low temperatures – a scale trillion times lower than routinely used in verifiable power measurements. The device has the potential to significantly advance microwave measurements in quantum technology.
A surprising way to trap a microparticle
When physicists steered a tiny microparticle toward a cylindrical obstacle, they expected one of two outcomes to occur. The particle would either collide into the obstacle or sail around it. The particle, however, did neither.
Researchers at SLAC use purified liquid xenon to search for mysterious dark matter particles
An enormous vat of pure liquid xenon will help scientists at SLAC and around the globe learn more about the universe.
Theoretical calculations predicted now-confirmed tetraneutron, an exotic state of matter
Iowa State University’s James Vary and an international team of nuclear physicists used supercomputers to theorize and predict that a four-neutron structure, a tetraneutron, could form for just billions of billionths of a second. Experiments in Japan have now confirmed the reality of a tetraneutron.