Theoretical calculations predict a complex excited state (0+) for helium-4 (4He) at the 20.21 MeV energy level. This state involves a coupling of three cluster configurations: hydrogen-3 and a proton, ...

Alpha spotter the study was done using the Grand Raiden spectrometer at Osaka’s Research Centre for Nuclear Physics. (Courtesy: Thomas Aumann/TU Darmstadt) “Alpha clusters” resembling helium-4 nuclei ...

This is an example track of an alpha particle (energy 15 MeV) from the test beam registered with the demonstrator detector mini-eTPC. Read-out electrodes of the detector are parallel to the X-Y plane, ...

Antimatter particles are mirror versions of matter particles, with the opposite values of properties such as electric charge.

This process works best when the antiprotons and positrons have very low kinetic energies (temperatures) when combined. If the energy is too high, many antiatoms will be escape the trap. So, it is ...

The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...