Study of the Spin-Memory Effect with low-energy gamma-rays in 177Hf(n,γ)178Hf reaction measurement
A method on the basis of the Spin-Memory Effect (SME) is available to measure the total angular momentum J of a resonance in a neutron capture reaction. This method uses the fact that the intensity ratio of two gamma-rays emitted from a resonance depends on the J of the resonance. In this study, neu...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/14/epjconf_cgs17_05002.pdf |
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| author | Kawamura Shiori Endo Shunsuke Iwamoto Osamu Iwamoto Nobuyuki Kimura Atsushi Kitaguchi Masaaki Nakamura Shoji Okudaira Takuya Rovira Gerard Shimizu Hirohiko Shima Tatsushi Yoshikawa Hiromoto |
| author_facet | Kawamura Shiori Endo Shunsuke Iwamoto Osamu Iwamoto Nobuyuki Kimura Atsushi Kitaguchi Masaaki Nakamura Shoji Okudaira Takuya Rovira Gerard Shimizu Hirohiko Shima Tatsushi Yoshikawa Hiromoto |
| author_sort | Kawamura Shiori |
| collection | DOAJ |
| description | A method on the basis of the Spin-Memory Effect (SME) is available to measure the total angular momentum J of a resonance in a neutron capture reaction. This method uses the fact that the intensity ratio of two gamma-rays emitted from a resonance depends on the J of the resonance. In this study, neutron capture reaction measurements were performed at J-PARC MLF ANNRI using natural Hf (atomic number Z = 72). The total angular momentum of six resonances is deduced. The strength of SME was determined from those analyses. It was found that SME observed in resonances of 177Hf was stronger than that expected in past studies. |
| format | Article |
| id | doaj-art-f6bd67d75fee47e2b8a7b9f74c1b841a |
| institution | Matheson Library |
| issn | 2100-014X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-f6bd67d75fee47e2b8a7b9f74c1b841a2025-06-27T07:51:18ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013290500210.1051/epjconf/202532905002epjconf_cgs17_05002Study of the Spin-Memory Effect with low-energy gamma-rays in 177Hf(n,γ)178Hf reaction measurementKawamura Shiori0Endo Shunsuke1Iwamoto Osamu2Iwamoto Nobuyuki3Kimura Atsushi4Kitaguchi Masaaki5Nakamura Shoji6Okudaira Takuya7Rovira Gerard8Shimizu Hirohiko9Shima Tatsushi10Yoshikawa Hiromoto11Nagoya UniversityNagoya UniversityNuclear Data Center, Nuclear Science and Engineering Center, Japan Atomic Energy AgencyNuclear Data Center, Nuclear Science and Engineering Center, Japan Atomic Energy AgencyNuclear Data Center, Nuclear Science and Engineering Center, Japan Atomic Energy AgencyNagoya UniversityNuclear Data Center, Nuclear Science and Engineering Center, Japan Atomic Energy AgencyNagoya UniversityNuclear Data Center, Nuclear Science and Engineering Center, Japan Atomic Energy AgencyNagoya UniversityResearch Center for Nuclear Physics, Osaka UniversityResearch Center for Nuclear Physics, Osaka UniversityA method on the basis of the Spin-Memory Effect (SME) is available to measure the total angular momentum J of a resonance in a neutron capture reaction. This method uses the fact that the intensity ratio of two gamma-rays emitted from a resonance depends on the J of the resonance. In this study, neutron capture reaction measurements were performed at J-PARC MLF ANNRI using natural Hf (atomic number Z = 72). The total angular momentum of six resonances is deduced. The strength of SME was determined from those analyses. It was found that SME observed in resonances of 177Hf was stronger than that expected in past studies.https://www.epj-conferences.org/articles/epjconf/pdf/2025/14/epjconf_cgs17_05002.pdf |
| spellingShingle | Kawamura Shiori Endo Shunsuke Iwamoto Osamu Iwamoto Nobuyuki Kimura Atsushi Kitaguchi Masaaki Nakamura Shoji Okudaira Takuya Rovira Gerard Shimizu Hirohiko Shima Tatsushi Yoshikawa Hiromoto Study of the Spin-Memory Effect with low-energy gamma-rays in 177Hf(n,γ)178Hf reaction measurement EPJ Web of Conferences |
| title | Study of the Spin-Memory Effect with low-energy gamma-rays in 177Hf(n,γ)178Hf reaction measurement |
| title_full | Study of the Spin-Memory Effect with low-energy gamma-rays in 177Hf(n,γ)178Hf reaction measurement |
| title_fullStr | Study of the Spin-Memory Effect with low-energy gamma-rays in 177Hf(n,γ)178Hf reaction measurement |
| title_full_unstemmed | Study of the Spin-Memory Effect with low-energy gamma-rays in 177Hf(n,γ)178Hf reaction measurement |
| title_short | Study of the Spin-Memory Effect with low-energy gamma-rays in 177Hf(n,γ)178Hf reaction measurement |
| title_sort | study of the spin memory effect with low energy gamma rays in 177hf n γ 178hf reaction measurement |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2025/14/epjconf_cgs17_05002.pdf |
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