Clockwork Neutrinos

22 May 2019, 15:40
20m
Aransas (Omni Hotel)

Aransas

Omni Hotel

900 N Shoreline Blvd, Corpus Christi, TX 78401
Oral Neutrinos: Models, Phenomenology, Experiments Neutrinos: Models, Phenomenology, Experiments

Speaker

Gowri Kurup (Cornell University)

Description

The Clockwork (CW) mechanism can explain the smallness of neutrino masses without introducing unnaturally small input parameters. We study the simplest CW neutrino model, the "uniform" clockwork, as well as a broader class of "generalized" clockwork models. We derive constraints on such models from lepton-flavor violating processes, as well as precision electroweak fits. These constraints allow excited CW neutrino states with masses of order $100$ GeV - $1$ TeV, within reach of the LHC and proposed lepton colliders, as long as the input neutrino Yukawa coupling is of order $10^{−1}−10^{−2}$. We study collider phenomenology of these models. At the LHC, models with light ($\sim 100$ GeV) CW neutrinos can be discovered using the $3\ell$+MET signature. Lepton colliders will be able to discover the CW neutrinos as long as they are within their kinematic range.

Primary authors

Gowri Kurup (Cornell University) Dr Sungwoo Hong (Cornell University) Prof. Maxim Perelstein (Cornell University)

Presentation materials