抄録
A candidate resonant tetraneutron state is found in the missing-mass spectrum obtained in the double-charge-exchange reaction He4(He8,Be8) 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 (He8,Be8) reaction, an almost recoilless condition of the four-neutron system was achieved so as to obtain a weakly interacting four-neutron system efficiently.
本文言語 | 英語 |
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論文番号 | 052501 |
ジャーナル | Physical Review Letters |
巻 | 116 |
号 | 5 |
DOI | |
出版ステータス | 出版済み - 03-02-2016 |
外部発表 | はい |
All Science Journal Classification (ASJC) codes
- 物理学および天文学一般