70 citations · 472 across the 27 of their papers we have counts for
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Quintessence Axion Dark Energy and a Solution to the Hubble Tension
Gongjun Choi, Motoo Suzuki, Tsutomu T. Yanagida
We present a model in which the question about a nature of the dark energy and the recently raised Hubble tension can be addressed at once. We consider the electroweak axion in the…
Solving the strong CP problem with horizontal gauge symmetry
Gongjun Choi, Tsutomu T. Yanagida
We present a solution to the strong CP problem, which relies on the horizontal gauge symmetry and CP invariance in a full theory. Similar to other Nelson-Barr type solutions, CP vi…
Probing Dynamics of Boson Stars by Fast Radio Bursts and Gravitational Wave Detection
Gongjun Choi, Hong-Jian He, Enrico D. Schiappacasse
Boson stars may consist of a new type of light singlet scalar particles with nontrivial self-interactions, and may compose a fraction of the dark matter in the Universe. In this wo…