科研之友
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摘要
The review describes a number of indirect methods in nuclear astrophysics using radioactive beams: Coulomb dissociation, transfer reactions (the ANC method), breakup of loosely bound nuclei at intermediate energies, the use other spectroscopic measurements, including beta-decay studies and the determination of resonance parameters. The examples chosen are drawn from the experiments the author was involved in the last decade together with his group at Texas A&M University. One example discussed in particular is that of the reactions used to determine the S-17 astrophysical factor for the Be-7(p, gamma)B-8 reaction, crucial for the understanding the solar neutrino problem. We discuss also the case of the proton drip line nucleus Al-23. From its study we extract data to determine the stellar reaction rates for Mg-22(p, gamma)Al-23 and Na-22(p, gamma)Mg-23. Both breakup and beta-decay methods were used in these latter studies.
- 出版日期2007
