Light-by-light scattering is a very rare phenomenon in which two photons interact, producing another pair of photons. This process was among the earliest predictions of quantum electrodynamics (QED), the quantum theory of ...
General Physics
Mar 20, 2019
0
856
A lead-free ceramic that could be used in applications ranging from optical sensors and switches to creams for protecting against ultraviolet (UV) light has been developed by A*STAR researchers.
General Physics
Feb 4, 2019
0
7
Newly published research by a Dickinson College chemistry professor is advancing what we know about the power of fruit and vegetable peels to remove pollutants, such as dyes and heavy metals, from water. Cindy Samet, professor ...
Other
Aug 1, 2018
0
70
Environmental lead exposure is one of the most significant public health threats worldwide. Consequently, reliable, quick, inexpensive, and easy-to-handle lead assays are urgently needed. Scientists have now presented a novel ...
Materials Science
May 28, 2018
0
3
Hunting with lead shot is highly restricted or entirely banned in many countries due to the danger of poisoning birds and environment. However, alternative ammunition is not without its own risks, as was discovered in a study ...
Ecology
May 18, 2018
0
3
Physicists from the ATLAS experiment at CERN have found the first direct evidence of high energy light-by-light scattering, a very rare process in which two photons – particles of light – interact and change direction. ...
General Physics
Aug 15, 2017
7
1006
Scientists from the ATLAS collaboration at the LHC have found evidence for light-by-light scattering, in which two photons interact and change their trajectory. Researchers from DESY, the Johannes Gutenberg University Mainz ...
General Physics
Feb 28, 2017
11
233
It's the particles' last lap of the ring. On 5 December 2016, protons and lead ions circulated in the Large Hadron Collider (LHC) for the last time. At exactly 6.02am, the experiments recorded their last collisions (also ...
General Physics
Dec 6, 2016
0
34
Roughly once a year, the smallest Large Hadron Collider (LHC) experiment, LHC-forward (LHCf), is taken out of its dedicated storage on the site near the ATLAS experiment, reinstalled in the LHC tunnel, and put to use investigating ...
General Physics
Nov 21, 2016
0
16
When one snooker ball hits another, both spring away from each other in an elastic manner. In the case of two photons, a similar process, the elastic collision, has never been observed. Physicists from the Institute of Nuclear ...
Quantum Physics
May 20, 2016
0
103
