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

K. Kisamori, S. Shimoura, H. Miya, S. Michimasa, S. Ota, M. Assie, H. Baba, T. Baba, D. Beaumel, M. Dozono, T. Fujii, N. Fukuda, Shintaro Go, F. Hammache, E. Ideguchi, N. Inabe, M. Itoh, D. Kameda, S. Kawase, T. KawabataM. Kobayashi, Y. Kondo, T. Kubo, Y. Kubota, M. Kurata-Nishimura, C. S. Lee, Y. Maeda, H. Matsubara, K. Miki, T. Nishi, S. Noji, Satoshi Sakaguchi, H. Sakai, Y. Sasamoto, M. Sasano, H. Sato, Y. Shimizu, A. Stolz, H. Suzuki, M. Takaki, H. Takeda, S. Takeuchi, A. Tamii, L. Tang, H. Tokieda, M. Tsumura, T. Uesaka, K. Yako, Y. Yanagisawa, R. Yokoyama, K. Yoshida

Research output: Contribution to journalArticle

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Abstract

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.

Original languageEnglish
Article number052501
JournalPhysical Review Letters
Volume116
Issue number5
DOIs
Publication statusPublished - Feb 3 2016

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neutron decay
neutrons
charge exchange
mass spectra
thresholds
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Kisamori, K., Shimoura, S., Miya, H., Michimasa, S., Ota, S., Assie, M., ... Yoshida, K. (2016). Candidate Resonant Tetraneutron State Populated by the He 4 (He 8, Be 8) Reaction. Physical Review Letters, 116(5), [052501]. https://doi.org/10.1103/PhysRevLett.116.052501

Candidate Resonant Tetraneutron State Populated by the He 4 (He 8, Be 8) Reaction. / Kisamori, K.; Shimoura, S.; Miya, H.; Michimasa, S.; Ota, S.; Assie, M.; Baba, H.; Baba, T.; Beaumel, D.; Dozono, M.; Fujii, T.; Fukuda, N.; Go, Shintaro; Hammache, F.; Ideguchi, E.; Inabe, N.; Itoh, M.; Kameda, D.; Kawase, S.; Kawabata, T.; Kobayashi, M.; Kondo, Y.; Kubo, T.; Kubota, Y.; Kurata-Nishimura, M.; Lee, C. S.; Maeda, Y.; Matsubara, H.; Miki, K.; Nishi, T.; Noji, S.; Sakaguchi, Satoshi; Sakai, H.; Sasamoto, Y.; Sasano, M.; Sato, H.; Shimizu, Y.; Stolz, A.; Suzuki, H.; Takaki, M.; Takeda, H.; Takeuchi, S.; Tamii, A.; Tang, L.; Tokieda, H.; Tsumura, M.; Uesaka, T.; Yako, K.; Yanagisawa, Y.; Yokoyama, R.; Yoshida, K.

In: Physical Review Letters, Vol. 116, No. 5, 052501, 03.02.2016.

Research output: Contribution to journalArticle

Kisamori, K, Shimoura, S, Miya, H, Michimasa, S, Ota, S, Assie, M, Baba, H, Baba, T, Beaumel, D, Dozono, M, Fujii, T, Fukuda, N, Go, S, Hammache, F, Ideguchi, E, Inabe, N, Itoh, M, Kameda, D, Kawase, S, Kawabata, T, Kobayashi, M, Kondo, Y, Kubo, T, Kubota, Y, Kurata-Nishimura, M, Lee, CS, Maeda, Y, Matsubara, H, Miki, K, Nishi, T, Noji, S, Sakaguchi, S, Sakai, H, Sasamoto, Y, Sasano, M, Sato, H, Shimizu, Y, Stolz, A, Suzuki, H, Takaki, M, Takeda, H, Takeuchi, S, Tamii, A, Tang, L, Tokieda, H, Tsumura, M, Uesaka, T, Yako, K, Yanagisawa, Y, Yokoyama, R & Yoshida, K 2016, 'Candidate Resonant Tetraneutron State Populated by the He 4 (He 8, Be 8) Reaction', Physical Review Letters, vol. 116, no. 5, 052501. https://doi.org/10.1103/PhysRevLett.116.052501
Kisamori, K. ; Shimoura, S. ; Miya, H. ; Michimasa, S. ; Ota, S. ; Assie, M. ; Baba, H. ; Baba, T. ; Beaumel, D. ; Dozono, M. ; Fujii, T. ; Fukuda, N. ; Go, Shintaro ; Hammache, F. ; Ideguchi, E. ; Inabe, N. ; Itoh, M. ; Kameda, D. ; Kawase, S. ; Kawabata, T. ; Kobayashi, M. ; Kondo, Y. ; Kubo, T. ; Kubota, Y. ; Kurata-Nishimura, M. ; Lee, C. S. ; Maeda, Y. ; Matsubara, H. ; Miki, K. ; Nishi, T. ; Noji, S. ; Sakaguchi, Satoshi ; Sakai, H. ; Sasamoto, Y. ; Sasano, M. ; Sato, H. ; Shimizu, Y. ; Stolz, A. ; Suzuki, H. ; Takaki, M. ; Takeda, H. ; Takeuchi, S. ; Tamii, A. ; Tang, L. ; Tokieda, H. ; Tsumura, M. ; Uesaka, T. ; Yako, K. ; Yanagisawa, Y. ; Yokoyama, R. ; Yoshida, K. / Candidate Resonant Tetraneutron State Populated by the He 4 (He 8, Be 8) Reaction. In: Physical Review Letters. 2016 ; Vol. 116, No. 5.
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AU - Assie, M.

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AU - Stolz, A.

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AU - Tang, L.

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AU - Uesaka, T.

AU - Yako, K.

AU - Yanagisawa, Y.

AU - Yokoyama, R.

AU - Yoshida, K.

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