HET Lunch Discussions

"Long-lived light scalars and displaced vertices as probe of seesaw"

Presented by Bhupal Dev, Washington University

Friday, July 14, 2017, 12:00 pm — Building 510, Room 2-160

In low-scale seesaw models for neutrino masses with local B −L symmetry breaking, the Higgs field breaking the B −L symmetry can leave a physical real scalar field with mass around GeV scale. In the specific case when the B − L symmetry is embedded into the left-right symmetry, low energy flavor constraints necessarily require such a light scalar to be long lived, with a distinct displaced photon signal at the LHC. We will discuss this previously unexplored region of parameter space, which opens a new window to TeV scale seesaw physics at colliders.

Hosted by: Amarjit Soni

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