A new technique to determine gamma emission probability above the neutron threshold without gamma-ray detectors
We have developed a new experimental technique to determine the gamma emission probability from unbound states populated by the (d, p) reaction at 20 MeV/nucleon under the inverse kinematics. This was achieved using the decelerating and focusing device OEDO at RIBF. Due to the inverse kinematics, the outgoing reaction residues can be identified by a magnetic spectrometer. By combining the missing spectroscopy with the identification of the residual ions, the γ emission channel was determined event-by-event as a function of the excitation energy, without detecting γ ray from the unbound states. As the first application, the method was used to study the neutron capture reaction on 79 Se via the (d, p) reaction as a surrogate reaction for the neutron energies up to 5 MeV. Additionally, the technique was employed to investigate the compound reaction channel of (n, γ) cross sections on 130 Sn.
Authors
- L. Yang (ORCID: https://orcid.org/0009-0009-2679-6303)
- M. Dozono (ORCID: https://orcid.org/0000-0002-0891-4283)
- Chihiro Iwamoto (ORCID: https://orcid.org/0000-0003-0152-2233)
- S. Ota (ORCID: https://orcid.org/0000-0001-8855-4785)
- N. Imai
- S. Shimoura (ORCID: https://orcid.org/0000-0003-4741-2865)
- K. Wimmer (ORCID: https://orcid.org/0000-0001-8178-0405)
- Jongwon Hwang (ORCID: https://orcid.org/0000-0002-3134-0249)
- K. Kusaka
- Rieko Tsunoda
- Hiroki Yamada (ORCID: https://orcid.org/0000-0003-4960-238X)
- S. Hayakawa (ORCID: https://orcid.org/0000-0002-2054-8423)
- E. Ideguchi (ORCID: https://orcid.org/0000-0002-7424-9664)
- N. Chiga
- Yutaka Watanabe (ORCID: https://orcid.org/0000-0003-2425-7188)
- H. Yamaguchi (ORCID: https://orcid.org/0000-0001-9931-2052)
- S. Kawase (ORCID: https://orcid.org/0000-0001-5720-108X)
- H. J. Ong (ORCID: https://orcid.org/0000-0002-7291-7809)
- Satoshi Takeuchi (ORCID: https://orcid.org/0000-0003-2256-8628)
- H. Otsu
- M. Ohtake
- R. Yanagihara
- K. Yako
- H. Miyatake (ORCID: https://orcid.org/0000-0002-6888-8507)
- S. Michimasa (ORCID: https://orcid.org/0000-0002-5667-9636)
- S. Omika (ORCID: https://orcid.org/0009-0008-9939-560X)
- Hideki Shimizu
- Keita Nakano (ORCID: https://orcid.org/0000-0001-9605-9928)
- O. Beliuskina (ORCID: https://orcid.org/0000-0003-4448-7650)
- D. Nagae (ORCID: https://orcid.org/0000-0003-0922-6658)
- H. Sakuraï (ORCID: https://orcid.org/0000-0002-6215-4254)
- N. Kitamura (ORCID: https://orcid.org/0009-0002-8345-8481)
- D. Suzuki (ORCID: https://orcid.org/0009-0003-2175-7707)
- N. Fukuda (ORCID: https://orcid.org/0000-0003-2430-0609)
- K. Yoshida (ORCID: https://orcid.org/0000-0002-0347-9585)
- H. Takeda
- X. Sun (ORCID: https://orcid.org/0000-0003-2070-9562)
- T. Sumikama
- Y. Shimizu (ORCID: https://orcid.org/0000-0002-2320-284X)
- Hiroshi Suzuki (ORCID: https://orcid.org/0000-0002-2674-7984)
- Philipp Schrock (ORCID: https://orcid.org/0000-0002-8849-8354)
- T. Teranishi
- Kotaro Iribe
- M. Takaki
- Keita Kawata
- Hareru Miki
- Shoichiro Masuoka
- Yukinobu Watanabe
- D. S. Ahn
Institutions
- Wako University (JP)
- Tokyo Institute of Technology (JP)
- Kyushu University (JP)
- GSI Helmholtz Centre for Heavy Ion Research (DE)
- Kyoto University (JP)
- Japan Proton Accelerator Research Complex (JP)
- Institute for Basic Science (KR)
- Korea Basic Science Institute (KR)
- RIKEN Nishina Center (JP)
- RIKEN Center for Advanced Photonics (JP)
- Saitama University (JP)
- The University of Osaka (JP)
Publication Details
- Journal
- EPJ Web of Conferences
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1051/epjconf/202532903002
- Primary Topic
- Nuclear Physics and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Council for Science, Technology and Innovation
- Japan Society for the Promotion of Science
- RIKEN