3 papers
hep-ph2025
Cosmological Signatures of Neutrino Seesaw Mechanism
Chengcheng Han, Hong-Jian He, Linghao Song +1
The tiny neutrino masses are most naturally explained by seesaw mechanism through singlet right-handed neutrinos, which can further explain the matter-antimatter asymmetry in the U…
hep-ph2025
Cosmological Non-Gaussianity from Neutrino Seesaw Mechanism
Jingtao You, Linghao Song, Hong-Jian He +1
The neutrino mass generation via conventional seesaw mechanism is realized at high scales around GeV with natural Yukawa couplings of , making the test of neutrin…
hep-ph2025
Topological defects as effective dynamical dark energy
Haipeng An, Chengcheng Han, Borui Zhang
In this work, we consider the possibility that the dynamical dark energy hinted at by recent DESI data may be mimicked by the effects of additional components in the universe, pote…