62 citations · 1.3k across the 66 of their papers we have counts for
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New Constraints on Radiative Decay of Long-Lived Particles in Big Bang Nucleosynthesis with New He Photodisintegration Data
Motohiko Kusakabe, Toshitaka Kajino, Takashi Yoshida +3
A recent measurement of He photodisintegration reactions, He(,)H and He(,)He with laser-Compton photons shows smaller cross sections than those esti…
Pregalactic LiBeB Production by Supernova Cosmic Rays
Motohiko Kusakabe
I calculate the evolution of Be and B abundances produced by cosmic rays generated by massive stars in the pregalactic phase of the universe. The inputs for calculation, i.e. the s…
A Simultaneous Solution to the ^6Li and ^7Li Big Bang Nucleosynthesis Problems from a Long-Lived Negatively-Charged Leptonic Particle
Motohiko Kusakabe, Toshitaka Kajino, Richard N. Boyd +2
The Li abundance observed in metal poor halo stars exhibits a plateau similar to that for Li suggesting a primordial origin. However, the observed abundance of Li is a…
The X^- Solution to the ^6Li and ^7Li Big Bang Nucleosynthesis Problems
Motohiko Kusakabe, Toshitaka Kajino, Richard N. Boyd +2
The Li abundance observed in metal poor halo stars appears to exhibit a plateau as a function of metallicity similar to that for Li, suggesting a big bang origin. However,…
Li Production by the Radiative Decay of Long-Lived Particles
Motohiko Kusakabe, Toshitaka Kajino, Grant J. Mathews
Recent spectroscopic observations of metal poor stars have indicated that both Li and Li have abundance plateaus with respect to the metallicity. Abundances of Li are a…