123 citations · 218 across the 4 of their papers we have counts for
4 papers
Revised Big Bang Nucleosynthesis with long-lived negatively charged massive particles: updated recombination rates, primordial 9Be nucleosynthesis, and impact of new 6Li limits
Motohiko Kusakabe, K. S. Kim, Myung-Ki Cheoun +3
We extensively reanalyze effects of a long-lived negatively charged massive particle, X-, on big bang nucleosynthesis (BBN). The BBN model with an X- particle was originally motiva…
7Be charge exchange between 7Be3+ ion and exotic long-lived negatively charged massive particle in big bang nucleosynthesis
Motohiko Kusakabe, K. S. Kim, Myung-Ki Cheoun +2
The existence of an exotic long-lived negatively charged massive particle, i.e., X-, during big bang nucleosynthesis can affect primordial light element abundances. Especially, the…
Big-Bang Nucleosynthesis Reactions Catalyzed by a Long-Lived Negatively Charged Leptonic Particle
Masayasu Kamimura, Yasushi Kino, Emiko Hiyama
An accurate quantum three-body calculation is performed for the new type of big-bang nucleosynthesis (BBN) reactions that are catalyzed by a long-lived negatively-charged, massive…
Stau-catalyzed Li Production in Big-Bang Nucleosynthesis
K. Hamaguchi, T. Hatsuda, M. Kamimura +2
If the gravitino mass is in the region from a few GeV to a few 10's GeV, the scalar lepton X such as stau is most likely the next lightest supersymmetry particle. The negatively ch…