Di-triton molecular structure in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>6</mn></mrow></msup></mrow><mi mathvariant="normal">He</mi></math></span>

H. Akimune; T. Yamagata; S. Nakayama; Y. Arimoto; M. Fujiwara; K. Fushimi; K. Hara; M. Ohta; A. Shiokawa; M. Tanaka; H. Utsunomiya; K. Y. Hara; H. P. Yoshida; M. Yosoi

doi:10.1103/PhysRevC.67.051302

Rapid Communication

Di-triton molecular structure in $^{6} He$

H. Akimune, T. Yamagata, S. Nakayama, Y. Arimoto, M. Fujiwara, K. Fushimi, K. Hara, M. Ohta, A. Shiokawa, M. Tanaka, H. Utsunomiya, K. Y. Hara, H. P. Yoshida, and M. Yosoi

Phys. Rev. C 67, 051302(R) – Published 28 May 2003

Abstract

Resonances above the t+t threshold in $^{6} He$ have been studied via the $^{6} Li$ $(^{7} Li,$ $^{7} Be$ $t)$ $^{3} H$ reaction at $0 °$ taken with a $^{7} Li$ beam of 65 MeV/nucleon. By observing the binary triton decay, a new prominent resonance is found at $E_{x} = 18.0 \pm 0.5 MeV$ with a width of $7.7 \pm 1.0 MeV .$ The branching ratio for the binary triton decay from this resonance is deduced to be $90 \pm 10 %,$ suggesting that the resonance at 18 MeV has a di-triton molecular structure.

Received 28 July 2002

DOI:https://doi.org/10.1103/PhysRevC.67.051302

Authors & Affiliations

H. Akimune^1,*, T. Yamagata¹, S. Nakayama², Y. Arimoto³, M. Fujiwara^4,5, K. Fushimi², K. Hara⁴, M. Ohta¹, A. Shiokawa¹, M. Tanaka⁶, H. Utsunomiya¹, K. Y. Hara¹, H. P. Yoshida⁴, and M. Yosoi⁷

¹Department of Physics, Konan University, Kobe 658-8501, Japan
²Department of Physics, University of Tokushima, Tokushima 770-8502, Japan
³Japan Synchrotron Radiation Research Institute (JASRI), Hyogo 679-5198, Japan
⁴Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
⁵Advanced Science Research Center, JAERI, Ibaragi 319-1195, Japan
⁶Kobe Tokiwa College, Kobe 654-0838, Japan
⁷Department of Physics, Kyoto University, Kyoto 606-8502, Japan

^*Email address: akimune@konan-u.ac.jp

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Vol. 67, Iss. 5 — May 2003

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