Determination of resonances in Gamow window for 12C+12C fusion reaction via thick-target inverse kinematics method
The 12C+12C fusion reaction at deep subbarrier energies is important for understanding the carbon burning process in massive star and explosive binary systems. However, its reaction rates are very difficult to measure directly or evaluate by simple extrapolation due to the extremely small cross sect...
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Elsevier
2025-03-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325001017 |
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| author | Weike Nan Youbao Wang Jun Su Yaode Sheng Richard James deBoer Yuqiang Zhang Luyang Song Fuqiang Cao Chen Chen Chao Dong Yunju Li Zhihong Li Gang Lian Wei Nan Yangping Shen Na Song Shengquan Yan Seng Zeng Bing Guo Weiping Liu |
| author_facet | Weike Nan Youbao Wang Jun Su Yaode Sheng Richard James deBoer Yuqiang Zhang Luyang Song Fuqiang Cao Chen Chen Chao Dong Yunju Li Zhihong Li Gang Lian Wei Nan Yangping Shen Na Song Shengquan Yan Seng Zeng Bing Guo Weiping Liu |
| author_sort | Weike Nan |
| collection | DOAJ |
| description | The 12C+12C fusion reaction at deep subbarrier energies is important for understanding the carbon burning process in massive star and explosive binary systems. However, its reaction rates are very difficult to measure directly or evaluate by simple extrapolation due to the extremely small cross sections and complex resonance structures near the Gamow window. In this work, we use one of its exit channels, i.e. 23Na+p to populate the excited states of the compound nucleus 24Mg via the conventional thick-target inverse kinematics method. By applying γ-charged particle coincidence, we have obtained excitation functions for the proton and α emission channels, respectively, and derived the resonance parameters through a simultaneous multi-channel R-matrix analysis. It is clear that a series of discrete resonances exist in the most relevant excitation energy region of 24Mg. The astrophysical S-factor of the 12C+12C fusion reaction is evaluated by adopting a systematic reduced width for the entrance channel. In particular, branching ratios of the dominant four decay channels are estimated across the entire Gamow window of the 12C+12C fusion reactions. Significant fluctuations are shown that may have strong impacts on the final outcome of the carbon burning process. |
| format | Article |
| id | doaj-art-3aa07b3f2bcb45fbbe1d8585a2de2015 |
| institution | DOAJ |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-3aa07b3f2bcb45fbbe1d8585a2de20152025-08-20T02:59:53ZengElsevierPhysics Letters B0370-26932025-03-0186213934110.1016/j.physletb.2025.139341Determination of resonances in Gamow window for 12C+12C fusion reaction via thick-target inverse kinematics methodWeike Nan0Youbao Wang1Jun Su2Yaode Sheng3Richard James deBoer4Yuqiang Zhang5Luyang Song6Fuqiang Cao7Chen Chen8Chao Dong9Yunju Li10Zhihong Li11Gang Lian12Wei Nan13Yangping Shen14Na Song15Shengquan Yan16Seng Zeng17Bing Guo18Weiping Liu19China Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Colleage of Science, Southern University of Science and Technology, Shenzhen, 518055, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, China; Corresponding authors at: China Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China.Key Laboratory of Beam Technology of Ministry of Education, School of Physics and Astronomy, Beijing Normal University, Beijing, 100875, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, China; Corresponding author at: Key Laboratory of Beam Technology of Ministry of Education, School of Physics and Astronomy, Beijing Normal University, Beijing, 100875, China.Key Laboratory of Beam Technology of Ministry of Education, School of Physics and Astronomy, Beijing Normal University, Beijing, 100875, ChinaDepartment of Physics and Astronomy, University of Notre Dame, Notre Dame, IN 46556, USAChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, ChinaKey Laboratory of Beam Technology of Ministry of Education, School of Physics and Astronomy, Beijing Normal University, Beijing, 100875, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, China; School of Physics, Xi'an Jiaotong University, Xi'an, 710049, ChinaChina Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China; Colleage of Science, Southern University of Science and Technology, Shenzhen, 518055, China; Jinping Deep Underground Froniter Science and Dark Matter Key Laboratory of Sichuan Province, Liangshan, 615000, China; Corresponding authors at: China Institute of Atomic Energy, P. O. Box 275(10), Beijing, 102413, China.The 12C+12C fusion reaction at deep subbarrier energies is important for understanding the carbon burning process in massive star and explosive binary systems. However, its reaction rates are very difficult to measure directly or evaluate by simple extrapolation due to the extremely small cross sections and complex resonance structures near the Gamow window. In this work, we use one of its exit channels, i.e. 23Na+p to populate the excited states of the compound nucleus 24Mg via the conventional thick-target inverse kinematics method. By applying γ-charged particle coincidence, we have obtained excitation functions for the proton and α emission channels, respectively, and derived the resonance parameters through a simultaneous multi-channel R-matrix analysis. It is clear that a series of discrete resonances exist in the most relevant excitation energy region of 24Mg. The astrophysical S-factor of the 12C+12C fusion reaction is evaluated by adopting a systematic reduced width for the entrance channel. In particular, branching ratios of the dominant four decay channels are estimated across the entire Gamow window of the 12C+12C fusion reactions. Significant fluctuations are shown that may have strong impacts on the final outcome of the carbon burning process.http://www.sciencedirect.com/science/article/pii/S037026932500101712C+12C fusion reactionDiscrete resonance structureThick-target inverse kinematics methodR-matrix analysis |
| spellingShingle | Weike Nan Youbao Wang Jun Su Yaode Sheng Richard James deBoer Yuqiang Zhang Luyang Song Fuqiang Cao Chen Chen Chao Dong Yunju Li Zhihong Li Gang Lian Wei Nan Yangping Shen Na Song Shengquan Yan Seng Zeng Bing Guo Weiping Liu Determination of resonances in Gamow window for 12C+12C fusion reaction via thick-target inverse kinematics method Physics Letters B 12C+12C fusion reaction Discrete resonance structure Thick-target inverse kinematics method R-matrix analysis |
| title | Determination of resonances in Gamow window for 12C+12C fusion reaction via thick-target inverse kinematics method |
| title_full | Determination of resonances in Gamow window for 12C+12C fusion reaction via thick-target inverse kinematics method |
| title_fullStr | Determination of resonances in Gamow window for 12C+12C fusion reaction via thick-target inverse kinematics method |
| title_full_unstemmed | Determination of resonances in Gamow window for 12C+12C fusion reaction via thick-target inverse kinematics method |
| title_short | Determination of resonances in Gamow window for 12C+12C fusion reaction via thick-target inverse kinematics method |
| title_sort | determination of resonances in gamow window for 12c 12c fusion reaction via thick target inverse kinematics method |
| topic | 12C+12C fusion reaction Discrete resonance structure Thick-target inverse kinematics method R-matrix analysis |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325001017 |
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