Coulomb dissociation of 8B and solar neutrino problem |
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| Institution: | 1. College of Medicine, Taipei Medical University, Taipei, Taiwan;2. Department of Geriatric Medicine, Faculty of Medicine, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Viet Nam;3. Department of Pulmonology, Thong Nhat Hospital, Ho Chi Minh City, Viet Nam;4. Wellcome Trust Major Overseas Program, Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam;5. School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan;6. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan;7. Department of Family Medicine, Taipei Medical University Hospital, Taipei, Taiwan;8. School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan;9. Research Center of Sleep Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan;10. Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan |
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| Abstract: | We measured the cross section for Coulomb dissociation of 8B using a radioactive 8B beam of 46.5 MeV/u energy with a 208Pb target. The corss section for the 7Be(p,γ)8B capture reaction was deduced at Ecm = 0.6 – 1.7 MeV. The extracted astrophysical S17 factors were consistent with the values measured by Vaughn et al. and Filippone et al. Possible corrections due to 7Be excited state population, E1 and M2 contribution, nuclear contribution and post acceleration effects are considered. |
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