An international team at the GSI research facility in Germany have confirmed the existence of a new element with atomic number 115, verifying earlier measurements performed by research groups in Russia.
By bombarding a thin film of americium with calcium ions, the research team was able to measure photons in connection with the new element's alpha decay. Certain energies of the photons agreed with the expected energies for X-ray radiation, which is a 'fingerprint' of a given element.
The new super-heavy element has yet to be named. A committee comprising members of the international unions of pure and applied physics and chemistry will review the new findings to decide whether to recommend further experiments before the discovery of the new element is acknowledged.
Besides the observations of the new chemical element, the researchers have also gained access to data that gives them a deeper insight into the structure and properties of super-heavy atomic nuclei.
"This was a very successful experiment and is one of the most important in the field in recent years," said Dirk Rudolph, Professor at the Division of Atomic Physics at Lund University.
The new evidence for the chemical element with atomic number 115 will be upcoming in The Physical Review Letters.