https://doi.org/10.1140/epjc/s10052-020-8352-5
Regular Article - Theoretical Physics
Scotogenic neutrino mass with large 
multiplet fields
1
Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India
2
School of Physics, KIAS, Seoul, 02455, Korea
3
Asia Pacific Center for Theoretical Physics (APCTP), Headquarters San 31, Hyoja-dong, Nam-gu, Pohang, 790-784, Korea
4
Department of Physics, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
* e-mail: nomura@kias.re.kr
Received:
18
May
2020
Accepted:
13
August
2020
Published online:
31
August
2020
We construct a scotogenic neutrino mass model introducing large multiplet fields without adding an extra symmetry. We have introduced extra scalar fields such as a septet, quintet and quartet where we make the vacuum expectation value of quartet scalar to be zero while septet and quintet develop non-zero ones. Then the neutrino mass is generated at one-loop level by introducing quintet fermion. We analyze the neutrino mass matrix taking constraints from lepton flavor violation into account and discuss collider physics regarding charged fermions from large multiplet fields. We have analysed the production and the decays of the quintet fermions, as well as the discovery reach at 14 TeV and 27 TeV LHC.
© The Author(s), 2020
