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Link to original content: https://pubmed.ncbi.nlm.nih.gov/26894705
Candidate Resonant Tetraneutron State Populated by the ^{4}He(^{8}He,^{8}Be) Reaction - PubMed Skip to main page content
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. 2016 Feb 5;116(5):052501.
doi: 10.1103/PhysRevLett.116.052501. Epub 2016 Feb 3.

Candidate Resonant Tetraneutron State Populated by the ^{4}He(^{8}He,^{8}Be) Reaction

K Kisamori  1   2 , S Shimoura  1 , H Miya  1   2 , S Michimasa  1 , S Ota  1 , M Assie  3 , H Baba  2 , T Baba  4 , D Beaumel  2   3 , M Dozono  2 , T Fujii  1   2 , N Fukuda  2 , S Go  1   2 , F Hammache  3 , E Ideguchi  5 , N Inabe  2 , M Itoh  6 , D Kameda  2 , S Kawase  1 , T Kawabata  4 , M Kobayashi  1 , Y Kondo  2   7 , T Kubo  2 , Y Kubota  1   2 , M Kurata-Nishimura  2 , C S Lee  1   2 , Y Maeda  8 , H Matsubara  9 , K Miki  5 , T Nishi  2   10 , S Noji  11 , S Sakaguchi  2   12 , H Sakai  2 , Y Sasamoto  1 , M Sasano  2 , H Sato  2 , Y Shimizu  2 , A Stolz  11 , H Suzuki  2 , M Takaki  1 , H Takeda  2 , S Takeuchi  2 , A Tamii  5 , L Tang  1 , H Tokieda  1 , M Tsumura  4 , T Uesaka  2 , K Yako  1 , Y Yanagisawa  2 , R Yokoyama  1 , K Yoshida  2
Affiliations

Candidate Resonant Tetraneutron State Populated by the ^{4}He(^{8}He,^{8}Be) Reaction

K Kisamori et al. Phys Rev Lett. .

Abstract

A candidate resonant tetraneutron state is found in the missing-mass spectrum obtained in the double-charge-exchange reaction ^{4}He(^{8}He,^{8}Be) at 186 MeV/u. The energy of the state is 0.83±0.65(stat)±1.25(syst) MeV above the threshold of four-neutron decay with a significance level of 4.9σ. Utilizing the large positive Q value of the (^{8}He,^{8}Be) reaction, an almost recoilless condition of the four-neutron system was achieved so as to obtain a weakly interacting four-neutron system efficiently.

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