3 papers
hep-ph2026
Cosmological Collider Signatures from Right-Handed Neutrino Loop
Jingtao You, Linghao Song, Chengcheng Han +3
We study cosmological collider (CC) signatures generated by right-handed neutrino loops in the setup of inflation combined with the neutrino seesaw mechanism. We formulate the infl…
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…