Münster 2017 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 87: Neutrinophysik (Theorie)

T 87.9: Vortrag

Mittwoch, 29. März 2017, 18:45–19:00, VSH 05

Neutrino assisted GUT baryogenesis - revisited — •Sinan Zeißner — TU-Dortmund, Germany

Many GUT models conserve B−L. This results in heavy Higgs or gauge boson decays with Δ(B+L) ≠ 0 but with Δ(B−L)=0. Since sphaleron processes violate B+L as well, such an asymmetry will be washed out completely. We will revisit the idea to revive GUT baryogenesis where right-handed neutrinos wash out the L asymmetry before sphaleron processes can significantly wash out the original B+L asymmetry. This way a total washout of the initial baryon asymmetry can be prevented. At the same time one can explain the neutrino mass differences and to combine this idea with the scotogenic model to produce DM. (arXiv:1608.04354)