Halo nucleus

Halo nuclei are nuclides that hold individual distant from the rest of the core nucleons. Depending on the nature of the nucleons, which have relatively large distance from the nuclear core, halo nuclei are divided into neutron halos and proton halos. In this case, among the previously detected halo nuclei outweighs the number of neutrons halos against proton halo. The stability of halo nuclei can not be explained with classical physics, but only by using quantum mechanics.

Properties of the halo nuclei

The Halonukleonen own due to the large distance to the rest of the core a significantly lower binding energy than normal bound nucleons, which have a binding energy of about 5 MeV. The strong nuclear force, which concentrates the nucleons in the nucleus, has a range of about 2 to 3 femtometers, whereas, for example, the radius of the neutron halo of 11Be isotope of beryllium is 7 femtometer. According to the laws of classical physics, it therefore would be no bonding between the core and the hull Halonukleonen. The still existing binding energy can be explained by the uncertainty of Halonukleonen. The Aufenthaltswahrscheinlickeit is spatially extended far for Halonukleonen, so that the nucleons are at a sufficient probability close enough to the nuclear core to learn the strong interaction.

List of known halo nuclei

There following are known halo nuclei: