Tetraneutron

A is a hypothetical Tetraneutron particles consisting of four neutrons. Although the existence of this core is contrary to the accepted models of nuclear physics, there are some controversial experimental results to demonstrate its presence. In an experiment, whose results were published in 2002, met Francisco - Miguel Marqués and his team at GANIL in Caen in monitoring the nuclear disintegration of beryllium and lithium on possible indications for such a particle. Subsequent attempts to repeat this observation failed.

Marqués ' Experiment

The group led by Marquis fired Berylliumkerne and other neutron- rich nuclei at a small carbon target and analyzed the debris with proton scattering. The group identified six signals back to their opinion, with high probability on cluster of four neutrons. After Marqués employees and other possible explanations of the observed events may be responsible for a maximum of ten percent of the observed signal.

After Marqués ' Experiment

A later analysis of the detection method used suggested the suspicion that at least part of the original analysis was flawed. Attempts to repeat the observations with other methods were not successful, and led to no new observation of such particles. If the existence of stable tetra neutron should ever be independently proven, the current models of nuclear forces would have to be significantly changed. Bertulani Zelevinsky and suggested that the Tetraneutron, if it exists, could be made of a bonded state of two Dineutronen. However, attempts to create a model that explains the formation of Polyneutronen, and so Steven C. Pieper, it