論文情報[理論グループ]”Cosmological constraint on dark photon from Neff”

【論文情報】 Masahiro Ibe, Shin Kobayashi, Yuhei Nakayama, Satoshi Shirai,
“Cosmological constraint on dark photon from Neff”,
e-Print: ArXiv: 1912.12152[hep-ph]

【日付】 2019-12-27