4 papers
Constraint on Pseudo-Dirac Neutrinos
Chee Sheng Fong, Yago Porto
After the electroweak symmetry breaking, we can write down two types of mass for the Standard Model neutrinos, Dirac or Majorana. It is often said that both types of mass cannot be…
Constraining the pseudo-Dirac nature of neutrinos using astrophysical neutrino flavor data
Chee Sheng Fong, Yago Porto
The three Standard Model neutrinos can have Majorana mass or strictly Dirac mass, but both scenarios are practically indistinguishable in neutrino oscillation experiments. If they…
One Phase to Rule Them All: Spontaneous CP Violation and Leptogenesis in SO(10)
K. S. Babu, Chee Sheng Fong, Shaikh Saad
We present a renormalizable grand unified theory with a minimal Yukawa sector consisting of a , a real and a real , where violation has a spontan…
Electroweak Triplet Scalar Contribution to Leptogenesis
Chee Sheng Fong, Ketan M. Patel
We show that electroweak triplet scalar can significantly impact baryogenesis via leptogenesis in concrete and predictive GUTs, even when light neutrino masses arise predo…