62Ni(n,γ ) and 63Ni(n,γ ) cross sections measured at the n_TOF facility at CERN
The cross section of the 62Ni(n,γ ) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200 keV neutron energy and Maxwellian averaged cross sections (MACS) from kT = 5–100 keV were calcu...
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| Format: | Article |
| Langue: | anglais |
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PHYSICAL REVIEW C
2025
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| Accès en ligne: | https://repository.auw.edu.bd/handle/123456789/928 |
| _version_ | 1857449041583931392 |
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| author | Meaze, AKM Moinul Haque |
| author_facet | Meaze, AKM Moinul Haque |
| author_sort | Meaze, AKM Moinul Haque |
| collection | institutional Repository |
| description | The cross section of the 62Ni(n,γ ) reaction was measured with the time-of-flight technique at the neutron
time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200 keV neutron
energy and Maxwellian averaged cross sections (MACS) from kT = 5–100 keV were calculated. With a total
uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at
kT = 30 keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross
section of the 63Ni(n,γ ) reaction was measured for the first time at n_TOF. We determined unresolved cross
sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints
on s-process production of heavier species, especially the production of Cu in massive stars, which serve as the
dominant source of Cu in the solar system. |
| format | Article |
| id | 123456789-928 |
| institution | Asian University for Women |
| language | English |
| publishDate | 2025 |
| publisher | PHYSICAL REVIEW C |
| record_format | dspace |
| spelling | 123456789-9282026-02-18T06:14:58Z 62Ni(n,γ ) and 63Ni(n,γ ) cross sections measured at the n_TOF facility at CERN Meaze, AKM Moinul Haque The cross section of the 62Ni(n,γ ) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200 keV neutron energy and Maxwellian averaged cross sections (MACS) from kT = 5–100 keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at kT = 30 keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross section of the 63Ni(n,γ ) reaction was measured for the first time at n_TOF. We determined unresolved cross sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints on s-process production of heavier species, especially the production of Cu in massive stars, which serve as the dominant source of Cu in the solar system. 2025-08-04T11:41:56Z 2025-08-04T11:41:56Z 2014 Article https://repository.auw.edu.bd/handle/123456789/928 en application/pdf PHYSICAL REVIEW C |
| spellingShingle | Meaze, AKM Moinul Haque 62Ni(n,γ ) and 63Ni(n,γ ) cross sections measured at the n_TOF facility at CERN |
| title | 62Ni(n,γ ) and 63Ni(n,γ ) cross sections measured at the n_TOF facility at CERN |
| title_full | 62Ni(n,γ ) and 63Ni(n,γ ) cross sections measured at the n_TOF facility at CERN |
| title_fullStr | 62Ni(n,γ ) and 63Ni(n,γ ) cross sections measured at the n_TOF facility at CERN |
| title_full_unstemmed | 62Ni(n,γ ) and 63Ni(n,γ ) cross sections measured at the n_TOF facility at CERN |
| title_short | 62Ni(n,γ ) and 63Ni(n,γ ) cross sections measured at the n_TOF facility at CERN |
| title_sort | 62ni n γ and 63ni n γ cross sections measured at the n tof facility at cern |
| url | https://repository.auw.edu.bd/handle/123456789/928 |
| work_keys_str_mv | AT meazeakmmoinulhaque 62ningand63ningcrosssectionsmeasuredatthentoffacilityatcern |