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Primordial magnetic field constrained from CMB anisotropies,and its generation and evolution before, during and after the BBN
Dai G. Yamazaki, Kiyotomo Ichiki, Toshitaka Kajino +1
The primordial magnetic field (PMF) can strongly affect the cosmic microwave background (CMB) power spectrum and the formation of large scale structure. In this presentation, we ca…
Neutrino Nucleus Reactions based on New Shell Model Hamiltonians
Toshio Suzuki, Satoshi Chiba, Takashi Yoshida +2
A new shell model Hamiltonian for p-shell nuclei which properly takes into account important roles of spin-isospin interactions is used to obtain cross sections of neutrino-^12C re…
Neutrino Oscillation Effects on Supernova Light Element Synthesis
T. Yoshida, T. Kajino, H. Yokomakura +3
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-…
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…
Inhomogeneous Big Bang Nucleosynthesis Revisited
J. F. Lara, T. Kajino, G. J. Mathews
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…
Neutron-capture elements in the metal-poor globular cluster M15
Kaori Otsuki, Satoshi Honda, Wako Aoki +2
We report on observations of six giants in the globular cluster M15 (NGC 7078) using the Subaru Telescope to measure neutron-capture elemental abundances. Our abundance analyses ba…