An SO(10) x SO(10)' model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries

作者：Gu, Pei Hong^*

来源：Journal of Cosmology and Astroparticle Physics, 2014, 2014(12): 046.

DOI：10.1088/1475-7516/2014/12/046

• dark matter theory
• baryon asymmetry
• neutrino theory

We propose an SO(10) x SO(10)' model to simultaneously realize a seesaw for Dirac neutrino masses and a leptogenesis for ordinary and dark matter-antimatter asynunetries. A (16 x (16) over bar ')(H) scalar crossing the SO(10) and SO(10)' sectors plays an essential role in this seesaw-leptogenesis scenario. As a result of lepton number conservation, the lightest (lark nucleon as the dark matter particle should have a determined mass around 15 GeV to explain the comparable fractions of ordinary and dark matter in the present universe. The (16 x (16) over bar ') scalar also mediates a U(1)(em) x U(1)'(em) kinetic mixing after the ordinary and dark left-right symmetry breaking so that we can expect a dark nucleon scatAering in direct detection experiments and/or a dark nucleon decay in indirect, detection experiments. Furthermore, we can impose a softly broken mirror symmetry to simplify the parameter choice.

• 出版日期2014-12
• 单位上海交通大学