628 citations · 16.2k across the 353 of their papers we have counts for
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Quark Lepton Mass Hierarchies and the Baryon Asymmetry
W. Buchmüller, T. Yanagida
The mass hierarchies of quarks and charged leptons as well as a large $\n_\m$-$\n_\t$ mixing angle are naturally explained by the Frogatt-Nielsen mechanism with a nonparallel famil…
Large Lepton Mixing in Seesaw Models - Coset-space Family Unification -
J. Sato, T. Yanagida
We show that the large mixing between and observed by the SuperKamiokande collaboration is a quite natural prediction in a large class of seesaw models. This large mixi…
Long Lived Superheavy Dark Matter with Discrete Gauge Symmetries
K. Hamaguchi, Yasunori Nomura, T. Yanagida
The recently observed ultra-high energy (UHE) cosmic rays beyond the Greisen-Zatsepin-Kuzmin bound can be explained by the decays of some superheavy particles forming a part of…
Superheavy Dark Matter with Discrete Gauge Symmetries
K. Hamaguchi, Yasunori Nomura, T. Yanagida
We show that there are discrete gauge symmetries protect naturally heavy X particles from decaying into the ordinary light particles in the supersymmetric standard model. This make…
Spectrum of Background X-rays from Moduli Dark Matter
T. Asaka, J. Hashiba, M. Kawasaki +1
We examine the -ray spectrum from the decay of the dark-matter moduli with mass keV, in particular, paying attention to the line spectrum from the moduli tra…