Noun
the branch of physics that studies subatomic particles and their interactions
Source: WordNethigh-energy physics
Experimental high energy physics research is a group effort. I have been very fortunate to have had outstanding students and colleagues who have made invaluable contributions to the research with which I have been associated. Jerome Isaac Friedman
Quite often, in high energy physics and in medical radiotherapy, very high energy EMR (in the >10 MeV region)—which is of higher energy than any nuclear gamma ray—is not called X-ray or gamma-ray, but instead by the generic term of "high energy photons." Source: Internet
For collapsible Particle physics (also high energy physics) is the branch of physics that studies the nature of the particles that constitute matter (particles with mass ) and radiation (massless particles). Source: Internet
Most of DESY's research in high energy physics with elementary particles has been taking place here since 1960. Source: Internet