TY - JOUR
T1 - Dineutron in the 21+ state of He 6
AU - Ogawa, Shoya
AU - Matsumoto, Takuma
N1 - Funding Information:
Acknowledgments. The authors would like to thank Prof. Kikuchi for fruitful discussions. This work is supported in part by Grant-in-Aid for Scientific Research (No. JP18K03650) from the Japan Society for the Promotion of Science (JSPS).
Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/4
Y1 - 2022/4
N2 - We investigate the dineutron in the 21+ state of He6 via analysis of its decay mode by using the complex scaling method. In this Letter, we propose the cross section for the resonant state to distinguish the resonant contributions from the nonresonant ones. As a result, it is found that the shoulder peak appears in the cross section for the resonant state as a function of ɛn-n. Furthermore, we show that the S=0 component of the cross section, where S is the total spin of the two valence neutrons, has a peak around the shoulder peak, which comes from the dineutron configuration in the 21+ state. Thus we conclude that the shoulder peak is expected to indicate the existence of the dineutron in the 21+ state.
AB - We investigate the dineutron in the 21+ state of He6 via analysis of its decay mode by using the complex scaling method. In this Letter, we propose the cross section for the resonant state to distinguish the resonant contributions from the nonresonant ones. As a result, it is found that the shoulder peak appears in the cross section for the resonant state as a function of ɛn-n. Furthermore, we show that the S=0 component of the cross section, where S is the total spin of the two valence neutrons, has a peak around the shoulder peak, which comes from the dineutron configuration in the 21+ state. Thus we conclude that the shoulder peak is expected to indicate the existence of the dineutron in the 21+ state.
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U2 - 10.1103/PhysRevC.105.L041601
DO - 10.1103/PhysRevC.105.L041601
M3 - Article
AN - SCOPUS:85129715879
SN - 2469-9985
VL - 105
JO - Physical Review C
JF - Physical Review C
IS - 4
M1 - L041601
ER -