339 citations · 2.8k across the 32 of their papers we have counts for
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hep-ph2016★ 7 cited
Non-thermal Axion Dark Radiation and Constraints
Anupam Mazumdar, Saleh Qutub, Ken'ichi Saikawa
The Peccei-Quinn mechanism presents a neat solution to the strong CP problem. As a by-product, it provides an ideal dark matter candidate, "the axion", albeit with a tiny mass. Axi…
hep-th2016★ 11 cited
Structure of Kähler potential for D-term inflationary attractor models
Kazunori Nakayama, Ken'ichi Saikawa, Takahiro Terada +1
Minimal chaotic models of D-term inflation predicts too large primordial tensor perturbations. Although it can be made consistent with observations utilizing higher order terms in…