Abstract
A candidate resonant tetraneutron state is found in the missing-mass spectrum obtained in the double-charge-exchange reaction at . The energy of the state is above the threshold of four-neutron decay with a significance level of . Utilizing the large positive value of the reaction, an almost recoilless condition of the four-neutron system was achieved so as to obtain a weakly interacting four-neutron system efficiently.
- Received 30 July 2015
DOI:https://doi.org/10.1103/PhysRevLett.116.052501
© 2016 American Physical Society
Physics Subject Headings (PhySH)
Viewpoint
Can Four Neutrons Tango?
Published 3 February 2016
Evidence that the four-neutron system known as the tetraneutron exists as a resonance has been uncovered in an experiment at the RIKEN Radioactive Ion Beam Factory.
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