Thomas Jefferson National Laboratory experiments hone in on a never-before-measured region of strong force coupling, a quantity that supports theories accounting for 99% of the ordinary mass in the universe. Much fanfare was made about the Higgs boson when this elusive particle was discovered in
New experiments hone in on a never-before-measured region of strong force coupling, a quantity that supports theories accounting for 99 percent of the ordinary mass in the universe.
Now, scientists have experimentally extracted the strength of the strong force, a quantity that firmly supports theories explaining how most of the mass or ordinary matter in the universe is generated. The research was performed at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility .
Though this paper is the culmination of years of data collection and analysis, it wasn’t entirely intentional at the beginning.At smaller distances between quarks, strong force coupling is small, and physicists can solve for it with a standard iterative method. At larger distances, however, strong force coupling becomes so big that the iterative method doesn’t work anymore.
These experiments were conducted in the lab’s Continuous Electron Beam Accelerator Facility, a DOE user facility. CEBAF is capable of providing polarized electron beams, which can be directed onto specialized targets containing polarized protons and neutrons in the experimental halls. When an electron beam is polarized, that means that a majority of the electrons are all spinning in the same direction.
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