October 31, 20191:15 pm – 2:15 pm (CDT)

## Heavy Neutrino Mixing and Associated CP Violation: Implications for Leptogenesis

Speaker:

Yongchao Zhang (Washington University in St. Louis)

Location:

Heavy neutrinos are essential ingredients of type-I seesaw mechanism, and the heavy neutrino mixings and associated CP phases can be directly probed at future high-energy hadron colliders, by measuring the charge asymmetries in same-sign dilepton signals which is mediated by the heavy $W_R$ boson. Mixing angles and CP violation in the heavy neutrino sector are crucial to generate the observed baryon asymmetry for TeVscale resonant leptogenesis, thus the same-sign charge asymmetry measurements at colliders can be used to directly test leptogenesis.