Effects of Beta-Decays of Excited-State Nuclei on the Astrophysical r-Process (2008)
Famiano, M. A., Boyd, R. N., Kajino, T., Otsuki, K., Terasawa, M., Mathews, G. J.
A rudimentary calculation is employed to evaluate the possible effects of beta- decays of excited-state nuclei on the astrophysical r-process. Single-particle levels calculated with the FRDM are...
Neutrino-Nucleus Reaction Cross Sections for Light Element Synthesis in Supernova Explosions (2008)
Yoshida, T., Suzuki, T., Chiba, S., Kajino, T., Yokomakura, H., Kimura, K., ...
The neutrino-nucleus reaction cross sections of 4He and 12C are evaluated using new shell model Hamiltonians. Branching ratios of various decay channels are calculated to evaluate the yields of Li,...
Neutrino Oscillation Effects on Supernova Light Element Synthesis (2006)
Yoshida, T., Kajino, T., Yokomakura, H., Kimura, K., Takamura, A., Hartmann, D. H.
Neutrino oscillations affect light element synthesis through the neutrino-process in supernova explosions. The 7Li and 11B yields produced in a supernova explosion of a 16.2 solar-mass star model...
Inhomogeneous Big Bang Nucleosynthesis Revisited (2006)
Lara, J. F., Kajino, T., Mathews, G. J.
We reanalyze the allowed parameters for inhomogeneous big bang nucleosynthesis in light of the WMAP constraints on the baryon-to-photon ratio and a recent measurement which has set the neutron...
Yamazaki, D., Ichiki, K., Kajino, T., Mathews, G. J.
Recent observations of the cosmic microwave background (CMB) have extended the measured power spectrum to higher multipoles $l\gtrsim$1000, and there appears to be possible evidence for excess power...
Sensitivity of r-Process Nucleosynthesis to Light-Element Nuclear Reactions (2005)
Sasaqui, T., Kajino, T., Mathews, G. J., Otsuki, K., Nakamura, K.
We study the efficiency and sensitivity of r-process nucleosynthesis to 18 light-element nuclear reaction rates. We adopt empirical power-law relations to parameterize the reaction sensitivities. We...
Astrophysical reaction rate for $\alpha(\alpha n,\gamma)$$^{9}$Be by photodisintegration (2002)
Sumiyoshi, K., Utsunomiya, H., Goko, S., Kajino, T.
We study the astrophysical reaction rate for the formation of $^{9}$Be through the three body reaction $\alpha(\alpha n,\gamma)$. This reaction is one of the key reactions which could bridge the mass...
Study of the early stage of the rapid-proton process (1996)
Kubono, S, Hosaka, M, Strasser, P, Guimarães, V, Jeong, S C, Katayama, I, ...