Investigation of stellar Si-26(p,gamma)P-27 reaction via Coulomb dissociation

Y. Togano, T. Gomi,T. Motobayashi,Y. Ando, N. Aoi,H. Baba, K. Demichi,Z. Elekes, N. Fukuda,Zs. Fulop, U. Futakami,H. Hasegawa, Y. Higurashi, K. Ieki,N. Imai,M. Ishihara,K. Ishikawa, N. Iwasa, H. Iwasaki, S. Kanno, Y. Kondo,T. Kubo,S. Kubono, M. Kunibu,K. Kurita, Y. U. Matsuyama, S. Michimasa, T. Minemura,M. Miura,H. Murakami, T. Nakamura, M. Notani, S. Ota, A. Saito,H. Sakurai, M. Serata,S. Shimoura,T. Sugimoto,E. Takeshita, S. Takeuchi, K. Ue,K. Yamada,Y. Yanagisawa,K. Yoneda, A. Yoshida

AIP Conference Proceedings(2008)

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摘要
The Coulomb dissociation of the proton-rich nuclei P-27 was studied experimentally using P-27 beams at 57 MeV/nucleon with a lead target. The radiative widths of the low-lying excited state in (27)p were deduced. The resonant capture reaction rate of stellar Si-26(p,gamma)(27)p through these states was estimated using the measured radiative widths. The astrophysical implications obtained from the extracted reaction rate will be discussed.
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关键词
reaction induced by unstable nuclei,Coulomb excitation,and nucleosynthesis in novae,supernovae and other explosive environments,20 <= A <= 38
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