On the existence of a bound tetraneutron

Details On the existence of a bound tetraneutron On the existence of a bound tetraneutron

2002-03-04

arxiv.org/abs/nucl-th/0203003v1

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures, submitted to Phys. Rev. C

Scientific paper

Following recent work in which events which may correspond to a bound tetraneutron ($^4$n) were observed, it is pointed out that from the theoretical perspective the two-body nucleon-nucleon force cannot by itself bind four neutrons, even if it can bind a dineutron. A very strong phenomenological four-nucleon (4N) force is needed in order to bind the tetraneutron. Such a 4N force, if it existed, would bind $^4$He by about 100 MeV. Alternative experiments such as ($^8$He,$^4$n) are proposed to search for the tetraneutron.

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