385 citations · 3.7k across the 95 of their papers we have counts for
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Wormhole-Induced ALP Dark Matter
Dhong Yeon Cheong, Koichi Hamaguchi, Yoshiki Kanazawa +3
Non-perturbative gravitational effects induce explicit global symmetry breaking terms within axion models. These exponentially suppressed terms in the potential give a mass contrib…
Exploring Chirality Structure in Nucleon Decay
Koichi Hamaguchi, Shihwen Hor, Natsumi Nagata +1
Baryon number conservation is an accidental symmetry in the Standard Model, but its violation is theoretically anticipated, making the search for such processes a promising avenue…
A Generic Analysis of Nucleon Decay Branching Fractions in Flipped SU(5) Grand Unification
Koichi Hamaguchi, Shihwen Hor, Natsumi Nagata +1
In flipped SU(5) grand unified theories, the partial decay lifetimes of certain nucleon decay channels depend generically on an unknown unitary matrix, which arises when left-hande…